#!/usr/local/bin/calc -d -f # # Sealed Box Subwoofer Speaker Design, from # http://www.diysubwoofers.org/, using Thiele-Small Parameters: # # Fs = resonance frequency of the driver. In free-air, the driver's # impedance will peak at this frequency. # # Pe = Thermal capacity of the driver, in Watts. If continuously # driven above its rated Pe, the driver may prematurely burn # out and fail. # # Qes = Electrical Q of the driver at Fs. Qes is a measure of the # driver's tendency to resonate at Fs, based on its # electrical characteristics, e.g. magnet strength, magnetic # circuit characteristics, etc.). The driver's overall # resonance characteristics are usually dominated by Qes. # # Qms = Mechanical Q of the driver at Fs. Qms is a measure of the # driver's tendency to resonate at Fs, based on its # mechanical characteristics, e.g. surround compliance, the # compliance of the spider, weight of the cone, etc. # # Qts = Total Q of the driver at Fs. Qts is a measure of the # driver's tendency to resonate at Fs, based on its overall # characteristics. Qts can be calculated using the equation: # # Qts= Qms*Qes/(Qms+Qes)) # # Re = DC resistance of the driver's voice coil. Re is less than # the driver's rated impedance (normally 4 or 8 ohms). # # Sd = Effective surface area of the driver. Roughly equal to the # area of the cone plus 1/3rd of the surround. # # Xmag = [DUMAX] Excursion limit due to the magnetic limitations of # the driver's motor. Xmag is defined as the displacement at # which the BL product has fallen to 70% of its value at the # cone's rest position. # # Xmech = Maximum physical excursion capability of the # driver. Exceeding Xmech normally results in damage to the # driver. # # Xsus = [DUMAX] Excursion limit due to the driver's # suspension. Xsus is defined as the point at which the # compliance of the suspension has decreased to 25% of the # value at the cone's rest position. # # Xmax = Linear (one-way) travel of the cone. Xmax is used to # determine the maximum linear SPL capability of the driver, # and can be defined in a number of ways. The DUMAX # definition is objectively the best one, and it is defined # as the shorter of the Xmag and Xsus values, in each # direction of cone travel. This definition is more useful # than the older definition of Xmax, which was solely # dependent on the length of the voice-coil vs. the length # of the gap. # # Vas = Equivalent air compliance. The volume of air that has the # same compliance ("springiness") as the driver's # suspension. Because less air is more "springy" than more # air, a large Vas represents a "loose" suspension # # Vd = Peak displacement volume. Vd = Sd*Xmax # # Note: the sealed box volume, Vb, can be reduced by a factor of 0.25, # by stuffing the box with sound damping material, e.g., fiberglass; # stuff until there is no further reduction in the resonant frequency, # F3. # # Note: about the driver's T/S parameters Low Q (<0.3) drivers are # generally more suited to higher-order bandpass. Drivers with Qts # between 0.3 to 0.4 are usually best used in vented systems, and # drivers with higher Qts are usually best suited for sealed # systems. 4th order bandpass systems can usually work with drivers # with any Qts between 0.3 to 0.6. # # Note: the Efficiency Bandwidth Product, (EBP,) is fs / qes; for # sealed enclosures, EBP < 50; for sealed, or ported, or bandpass, 50 # < EBP < 100; and EBP > 100 ported, as an initial appoximation. # # Speed of sound = 1130 feet / second. Let L = minimum longest room # dimension, then for a half wavelength fundamental resonance of the # room, F0: # # F0 = 565 / L # # This is the frequency of the first room resonant node, (the first # null in the room response.) Many consider it ideal if the box # resonant frequency, Fb, is the same as this frequency. # # Additionally, the maximum frequency of a speaker is where the # wavelength of the sound produced = effective diameter of the cone, # and, for every 10 dB increase in sound-level intensity, the power # requirement increases by a factor of 10. An increase of 3 dB # increase in sound-level intensity requires doubling the power, (F3 # is the -3 dB frequency, or half power.) Also, the equations are # valid regardless of whether English or Metric units are used-as long # as the parametric units are consistent. # # Qtc = 1 / 2, for a critically damped design. # Qtc = 0.577215665, Euler's constant, for a Bessel design. # Qtc = 1 / sqrt (2), for a maximally flat Butterworth design. # Qtc > 1 / sqrt (2), for a Chebyshev design. # Qtc >= 2 * Qts, for an acoustic suspension design. # Qtc = 1 / sqrt (2); # # Print all viable solutions, regardless of Fs, Qes, or, Qtc; 0 = no, # 1 = yes: # ALL = 0; # define parameters (Vas, Qts, Fs, Qtc, Qes) { local phi = (1 + sqrt (5)) / 2; local Qr = Qtc / Qts; local Vr = (Qr^2) - 1; local Vb = Vas / Vr; local Fb = Qr * Fs; local F3 = Fb * sqrt ((1 / (Qtc^2) - 2 + sqrt ((1 / (Qtc^2) - 2)^2 + 4)) / 2); local dBpeak = 0; local EBP = Fs / Qes; if (Vb > 0) { if ((ALL == 1) || (EBP < 100)) { if ((ALL == 1) || (Qts > 0.4)) { if (Qtc > sqrt (1 / 2)) { dBpeak = 20 * ln10 (Qtc^2 / sqrt (Qtc^2 - 0.25)); } printf (" Vb = %f = net box volume, liters\n", Vb); printf (" = %.3f X %.3f X %.3f = golden ratio inside box size, inches\n", pow (Vb * 61.0255296, 1 / 3) * phi, pow (Vb * 61.0255296, 1 / 3), pow (Vb * 61.0255296, 1 / 3) / phi); printf (" Fb = %f = box resonant frequency, Hz.\n", Fb); printf (" F3 = %f = box -3 dB frequency, Hz.\n", F3); printf (" Q = %f = box quality factor\n", Qtc); printf (" @ %f = maximum peak or dip in speaker system response, db\n", dBpeak); printf (" L = %f = minimum longest room dimension, feet\n", 565 / F3); printf ("\n"); } else { printf (" N/A, (Qts = %.3f)\n\n", Qts); } } else { printf (" N/A, (EBP = %.3f)\n\n", EBP); } } else { printf (" N/A, (No Solution)\n\n"); } } # # To view with Gnuplot(1): # # set logscale x # plot [1:200] "file_name" with lines # # The Y axis is dB. SPL. # define frequency (Qts, Fs, Qtc) { local Qr = Qtc / Qts; local Fb = Qr * Fs; local Fr; local F; for (F = 1; F < 1000; F++) { Fr = (F / Fb)^2; printf ("%d\t%f\n", F, 10 * ln10 (Fr^2 / ((Fr - 1)^2 + (Fr / Qtc^2)))); } } # # Dia = Effective diameter of driver; used only for minimum port # diameter calculations, and the diameter of the speaker is used # here, which is conservative. # # Xmax = Linear (one-way) travel of the cone. # # Vas = equivalent air compliance (litres), volume of air that has the # same compliance ("springiness") as the driver's suspension, # 28.31601808827235478838 litres / cubic foot. # # Qts = total Q of the driver at Fs, measure of the driver's tendency # to resonate at Fs. # # Fs = resonance frequency of the driver, (Hz), in free-air, the driver's # impedance will peak at this frequency. # # From http://www.partsexpress.com/: # printf ("Dayton DCS450-4 Classic 18\" Subwoofer 4 Ohm, $104.32:\n\n"); # # 300 watts RMS/450 watts max # Qes = 0.51; Xmax = 8.25; Dia = 18 * 2.54; Vas = 9.9 / 0.0353157; Qts = 0.47; Fs = 25; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton TIT400C-4 15\" Titanic Mk III Subwoofer, 4 Ohm, $198.66:\n\n"); # # 800 watts RMS/1,100 watts max # Qes = 0.52; Xmax = 20.5; Dia = 15.5625 * 2.54; Vas = 5.46 / 0.0353157; Qts = 0.49; Fs = 24; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton IB385-8 15\" IB Subwoofer, 8 Ohm, $121.01:\n\n"); # # 350 watts RMS/600 watts max # Qes = 0.63; Xmax = 14.3; Dia = 15.125 * 2.54; Vas = 8.79 / 0.0353157; Qts = 0.59; Fs = 22; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS390HF-4 15\" Reference HF Subwoofer, 4 Ohm, $159.80:\n\n"); # # 500 watts RMS/800 watts max # Qes = 0.49; Xmax = 14; Dia = 15.3125 * 2.54; Vas = 9.95 / 0.0353157; Qts = 0.42; Fs = 18; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS390HO-4 15\" Reference HO Subwoofer, 4 Ohm, $159.80:\n\n"); # # 800 watts RMS/1400 watts max # Qes = 0.42; Xmax = 12; Dia = 15.3125 * 2.54; Vas = 3.87 / 0.0353157; Qts = 0.39; Fs = 24; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton DCS380-4 Classic 15\" Subwoofer 4 Ohm, $72.00:\n\n"); # # 250 watts RMS/350 watts max # Qes = 0.59; Xmax = 8.4; Dia = 15 * 2.54; Vas = 8.26 / 0.0353157; Qts = 0.5; Fs = 23; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton TIT320C-4 12\" Titanic Mk III Subwoofer, 4 Ohm, $159.66:\n\n"); # # 500 watts RMS/700 watts max # Qes = 0.49; Xmax = 18.7; Dia = 12.5 * 2.54; Vas = 2.27 / 0.0353157; Qts = 0.45; Fs = 25; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS315HF-4 12\" Reference HF Subwoofer, 4 Ohm, $119.00:\n\n"); # # 400 watts RMS/700 watts # Qes = 0.58; Xmax = 14.3; Dia = 12.375 * 2.54; Vas = 3.00 / 0.0353157; Qts = 0.49; Fs = 25; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS315HO-4 12\" Reference HO Subwoofer, 4 Ohm, $119.00:\n\n"); # # 700 watts RMS/1200 watts max # Qes = 0.45; Xmax = 12.3; Dia = 12.375 * 2/54; Vas = 1.18 / 0.0353157; Qts = 0.41; Fs = 32; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Eminence Lab12 Generation II 12\" Subwoofer, 6 Ohm, $156.97:\n\n"); # # 400 watts RMS/800 watts max # Qes = 0.39; Xmax = 13; Dia = 12.32 * 2.54; Vas = 4.4 / 0.0353157; Qts = 0.38; Fs = 22; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Peerless 830500 XLS 12\" Subwoofer, 8 Ohm, $178.65:\n\n"); # # 300 watts RMS/425 watts max # Qes = 0.21; Xmax = 12.5; Dia = 12 * 2.54; Vas = 4.91 / 0.0353157; Qts = 0.20; Fs = 18.1; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton TIT280C-4 10\" Titanic Mk III Subwoofer, 4 Ohm, $149.66:\n\n"); # # 400 watts RMS/565 watts max # Qes = 0.47; Xmax = 18.7; Dia = 10 * 2.54; Vas = 1.0 / 0.0353157; Qts = 0.44; Fs = 29.6; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS265HF-4 10\" Reference HF Subwoofer, 4 Ohm, $115.00:\n\n"); # # 350 watts RMS/600 watts max # Qes = 0.51; Xmax = 12.3; Dia = 10.5 * 2.54; Vas = 1.59 / 0.0353157; Qts = 0.44; Fs = 26; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS265HO-4 10\" Reference HO Subwoofer, 4 Ohm, $115.00:\n\n"); # # 600 watts RMS/1000 watts max # Qes = 0.40; Xmax = 12.3; Dia = 10.5 * 2.54; Vas = 0.80 / 0.0353157; Qts = 0.37; Fs = 30; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Goldwood GW-410D 10\" Poly DVC Subwoofer, Dual 6 Ohm, $19.50:\n\n"); # # 110 watts RMS/220 watts max # Qes = 0.68; Xmax = 3.0; Dia = 10 * 2.54; Vas = 2.0 / 0.0353157; Qts = 0.61; Fs = 40; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Peerless 830452 XLS 10\" Subwoofer, 8 Ohm, $168.55:\n\n"); # # 300 watts RMS/425 watts max # Qes = 0.18; Xmax = 12.5; Dia = 10.5 * 2.54; Vas = 3.16 / 0.0353157; Qts = 0.17; Fs = 18.9; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS210HF-4 8\" Reference HF Subwoofer, 4 Ohm, $91.93:\n\n"); # # 280 watts RMS/500 watts max # Qes = 0.60; Xmax = 9; Dia = 8.5 * 2.54; Vas = 1.14 / 0.0353157; Qts = 0.5; Fs = 28; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton QT210-4 8\" Quatro Subwoofer, 4 Ohm, $53.85:\n\n"); # # 150 watts RMS/300 watts max # Qes = 0.50; Xmax = 9.5; Dia = 8.25 * 2.54; Vas = 0.81 / 0.0353157; Qts = 0.48; Fs = 42; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS150-4 6\" Reference Woofer, 4 Ohm, $32.54:\n\n"); # # 40 watts RMS/65 watts max, 50-3 kHz. # Qes = 0.47; Xmax = 4.4; Dia = 4.8125 * 2.54; Vas = 0.43 / 0.0353157; Qts = 0.40; Fs = 52; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS125S-8 5\" Reference Shielded Woofer, 8 Ohm, $27.22:\n\n"); # # 30 watts RMS/45 watts max, 70-4 kHz. # Qes = 0.59; Xmax = 4.0; Dia = 3.75 * 2.54; Vas = 0.15 / 0.0353157; Qts = 0.49; Fs = 70; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS125-4 5\" Reference Woofer, 4 Ohm, $29.22:\n\n"); # # 30 watts RMS/45 watts max, 64-4.5 kHz. # Qes = 0.75; Xmax = 4.0; Dia = 3.75 * 2.54; Vas = 0.1 / 0.0353157; Qts = 0.63; Fs = 76; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS100S-8 4\" Reference Shielded Full-Range Driver, 8 Ohm, $23.47:\n\n"); # # 30 watts RMS/45 watts max, 85-20 kHz. # Qes = 0.71; Xmax = 3.5; Dia = 2.875 * 2.54; Vas = 0.09 / 0.0353157; Qts = 0.55; Fs = 87.5; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS100-4 4\" Reference Full-Range Driver, 4 Ohm, $23.96:\n\n"); # # 30 watts RMS/45 watts max, 85-14 kHz. # Qes = 0.57; Xmax = 4.0; Dia = 2.875 * 2.54; Vas = 0.07 / 0.0353157; Qts = 0.48; Fs = 80; # parameters (Vas, Qts, Fs, Qtc, Qes); # ##################################################################### # # Added: Mon Dec 20 12:00:56 PST 2010 # # Dia is dimension of speaker, and needs to be verified. # ##################################################################### # printf ("Dayton SD315A-88 12\" DVC Subwoofer, 4 Ohm, $68.99:\n\n"); # # 120 watts RMS/180 watts max, 30-1 kHz. # Qes = 0.37; Xmax = 7.0; Dia = 12.375 * 2.54; Vas = 5.36 / 0.0353157; Qts = 0.33; Fs = 24; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RSS315HFA-8 12\" Reference HF Subwoofer, 8 Ohm, $138.24:\n\n"); # # 350 watts RMS/600 watts max, 25-1 kHz. # Qes = 0.64; Xmax = 14; Dia = 12.375 * 2.54; Vas = 2.67 / 0.0353157; Qts = 0.53; Fs = 25; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton DCS305-4 12\" Classic Subwoofer, 4 Ohm, $78.89:\n\n"); # # 250 watts RMS/500 watts max, 23-200 Hz. # Qes = 0.44; Xmax = 9.3; Dia = 12.0 * 2.54; Vas = 4.12 / 0.0353157; Qts = 0.41; Fs = 23; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton SD270A-88 10\" DVC Subwoofer, 4 Ohm, $36.63:\n\n"); # # 80 watts RMS/120 watts max, 30-15 kHz. # Qes = 0.50; Xmax = 6.0; Dia = 10.625 * 2.54; Vas = 3.8 / 0.0353157; Qts = 0.43; Fs = 26; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton DCS255-4 10\" Classic Subwoofer, 4 Ohm, $69.76:\n\n"); # # 200 watts RMS/400 watts max, 31-200 Hz. # Qes = 0.37; Xmax = 8.3; Dia = 10.25 * 2.54; Vas = 1.68 / 0.0353157; Qts = 0.34; Fs = 31; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton DC130BS-8 5-1/4\" Classic Shielded Woofer, 8 Ohm, $24.99:\n\n"); # # 30 watts RMS/45 watts max, 55-4 kHz. # Qes = 0.57; Xmax = 2.5; Dia = 5.25 * 2.54; Vas = 0.31 / 0.0353157; Qts = 0.45; Fs = 61; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton DC130BS-4 5-1/4\" Classic Shielded Woofer, 4 Ohm, $24.99:\n\n"); # # 30 watts RMS/45 watts max, 55-4 kHz. # Qes = 0.52; Xmax = 2.5; Dia = 5.25 * 2.54; Vas = 0.40 / 0.0353157; Qts = 0.42; Fs = 59; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS125T-8 5\" Reference Woofer Truncated Frame, 8 Ohm, $39.99:\n\n"); # # 30 watts RMS/60 watts max, 70-15 kHz. # Qes = 0.56; Xmax = 2.8; Dia = 4.9375 * 2.54; Vas = 0.14 / 0.0353157; Qts = 0.47; Fs = 74.9; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS125-8 5\" Reference Woofer, 8 Ohm, $29.22:\n\n"); # # 30 watts RMS/45 watts max, 70-6 kHz. # Qes = 0.59; Xmax = 4.0; Dia = 4.9375 * 2.54; Vas = 0.15 / 0.0353157; Qts = 0.49; Fs = 70.0; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton RS100T-8 4\" Reference Woofer Truncated Frame, 8 Ohm, $37.99:\n\n"); # # 25 watts RMS/50 watts max, 80-20 kHz. # Qes = 0.65; Xmax = 3.7; Dia = 3.875 * 2.54; Vas = 0.07 / 0.0353157; Qts = 0.52; Fs = 82.5; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("HiVi M4N 4\" Aluminum/Magnesium Midbass, 8 Ohm, $13.97:\n\n"); # # 15 watts RMS/50 watts max, 69 to 8,000 Hz, 82 dB 2.83V/1m # Qes = 1.35; Xmax = 3.0; Dia = 4.0 * 2.54; Vas = 0.16 / 0.0353157; Qts = 1.08; Fs = 69; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("HiVi B4N 4\" Aluminum Midbass Round Frame, 8 Ohm, $14.91:\n\n"); # # 25 watts RMS/50 watts max, 50 to 3,000 Hz, 85 dB 2.83V/1m # Qes = 0.63; Xmax = 3.2; Dia = 4.0 * 2.54; Vas = 0.16 / 0.0353157; Qts = 0.52; Fs = 56; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("CLIO HiVi B4N 4\" Aluminum Midbass Round Frame, 8 Ohm, $14.91:\n\n"); # # 25 watts RMS/50 watts max, 50 to 3,000 Hz, 85 dB 2.83V/1m # # From: B4N.tar.gz, 297-429-hi-vi-b4n-specifications-45067.txt, clio parameters # Qes = 0.54; Xmax = 3.2; Dia = 4.0 * 2.54; Vas = 2.86; Qts = 0.46; Fs = 66.27; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND90-8 3-1/2\" Aluminum Cone Full-Range Driver, 8 Ohm, $21.35:\n\n"); # # 20 watts RMS/40 watts max, 80 to 15,000 Hz, 82.1 dB 2.83V/1m # # Nominal Diameter 3-1/2" # Power Handling (RMS) 20 Watts # Power Handling (max) 40 Watts # Impedance 8 ohms # Frequency Response 80 to 15,000 Hz # Sensitivity 82.1 dB 1W/1m # Voice Coil Diameter 0.75" # # Resonant Frequency (Fs) 80 Hz # DC Resistance (Re) 7.5 ohms # Voice Coil Inductance (Le) 0.54 mH # Mechanical Q (Qms) 4.25 # Electromagnetic Q (Qes) 0.85 # Total Q (Qts) 0.71 # Compliance Equivalent Volume (Vas) 0.05 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.79 mm/N # BL Product (BL) 4.4 Tm # Diaphragm Mass Inc. Airload (Mms) 4.7g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 31.2 cm^2 # # Sealed Volume 0.1 ft.^3 = 2.83 L # Sealed F3 96 Hz # Vented Volume 0.15 ft.^3 = 4.25 L # Vented F3 50 Hz # # Ported: # # Vb = 9.14502152136495720487 = net box volume, liters # = 13.321 X 8.233 X 5.088 = golden ratio inside box size, inches # Fb = 44.867657664824644108 = box resonant frequency, Hz. # F3 = 35.2054310853910683384 = box -3 dB frequency, Hz. # @ 0.12287186920068007742 = maximum peak or dip in system response, dB # L = 16.04866018057236003675 = minimum longest room dimension, feet # # Note: Qts = 0.71, instead of 0.3 < Qts < 0.4 # Qes = 0.85; Xmax = 4.0; Dia = 3.5 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.71; Fs = 80; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio RS100-8 4\" Reference Full-Range Driver, 8 Ohm, $28.47:\n\n"); # # 30 watts RMS/60 watts max, 90-20 kHz, 83.9 dB 2.83V/1m # # Nominal Diameter 4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 8 ohms # Frequency Response 90 to 20,000 Hz # Sensitivity 83.9 dB 2.83V/1m # Sensitivity 83.3 dB 1W/1m # Voice Coil Diameter 1" # # Resonant Frequency (Fs) 90 Hz # DC Resistance (Re) 6.39 ohms # Voice Coil Inductance (Le) 0.49 mH # Mechanical Q (Qms) 2.37 # Electromagnetic Q (Qes) 0.76 # Total Q (Qts) 0.58 # Compliance Equivalent Volume (Vas) 0.05 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.82 mm/N # BL Product (BL) 4.2 Tm # Diaphragm Mass Inc. Airload (Mms) 3.63g # Maximum Linear Excursion (Xmax) 3.5 mm # Surface Area of Cone (Sd) 35.3 cm² # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Aluminum # Basket / Frame Material Cast Aluminum # Magnet Material Ferrite # # Overall Outside Diameter 3.86" # Baffle Cutout Diameter 3.04" # Depth 2.01" # Bolt Circle Diameter 3.54" # Mounting Holes 6 # # Sealed Volume 0.04 ft.^3 # Sealed F3 136 Hz # Vented Volume 0.1 ft.^3 # Vented F3 67 Hz # Qes = 0.76; Xmax = 3.5; Dia = 2.875 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.58; Fs = 80.0; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND90-4 3-1/2\" Aluminum Cone Full-Range Driver, 4 Ohm, $21.35:\n\n"); # # 20 watts RMS/40 watts max, 80 to 15,000 Hz, 80.6 dB 1W/m # # Nominal Diameter 3-1/2" # Power Handling (RMS) 20 Watts # Power Handling (max) 40 Watts # Impedance 4 ohms # Frequency Response 80 to 15,000 Hz # Sensitivity 80.6 dB 1W/1m # Voice Coil Diameter 0.75" # # Resonant Frequency (Fs) 76.7 Hz # DC Resistance (Re) 3.52 ohms # Voice Coil Inductance (Le) 0.57 mH # Mechanical Q (Qms) 5.71 # Electromagnetic Q (Qes) 0.84 # Total Q (Qts) 0.73 # Compliance Equivalent Volume (Vas) 0.05 ft.^3 # Mechanical Compliance of Suspension (Cms) 1 mm/N # BL Product (BL) 3 Tm # Diaphragm Mass Inc. Airload (Mms) 4.3g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 31.2 cm^2 # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Steel # Magnet Material Neodymium # # Overall Outside Diameter 4.07" # Baffle Cutout Diameter 3.35" # Depth 2.39" # Mounting Holes 4 # # Sealed Volume 0.1 ft.^3 # Sealed F3 90 Hz # Vented Volume 0.16 ft.^3 # Vented F3 48 Hz # Qes = 0.84; Xmax = 4.0; Dia = 3.5 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.73; Fs = 76.7; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND105-8 4\" Aluminum Cone Midbass Driver, 8 Ohm, $26.90:\n\n"); # # 30 watts RMS/60 watts max, 60 to 10,000 Hz, 83.2 dB 1W/1m # # Nominal Diameter 4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 8 ohms # Frequency Response 60 to 10,000 Hz # Sensitivity 83.2 dB 1W/1m # Voice Coil Diameter 1" # Resonant Frequency (Fs) 65.3 Hz # DC Resistance (Re) 7.6 ohms # Voice Coil Inductance (Le) 1.37 mH # Mechanical Q (Qms) 7.61 # Electromagnetic Q (Qes) 0.73 # Total Q (Qts) 0.66 # Compliance Equivalent Volume (Vas) 0.12 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.95 mm/N # BL Product (BL) 4.9 Tm # Diaphragm Mass Inc. Airload (Mms) 6.3g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 51.5 cm^2 # Overall Outside Diameter 4.13" # Baffle Cutout Diameter 3.66" # Depth 2.64" # Mounting Holes 4 # Sealed Volume 0.18 ft.^3 # Sealed F3 85 Hz # Vented Volume 0.35 ft.^3 # Vented F3 43 Hz # Qes = 0.73; Xmax = 0.59; Dia = 4.0 * 2.54; Vas = 0.12 / 0.0353157; Qts = 0.66; Fs = 65.3; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio RS100-8 4\" Reference Full-Range Driver, 8 Ohm, $28.47:\n\n"); # # 30 watts RMS/60 watts max, 90 to 20,000 Hz, 83.3 dB 1W/1m, 83.9 dB 2.83V/1m # # Nominal Diameter 4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 8 ohms # Frequency Response 90 to 20,000 Hz # Sensitivity 83.9 dB 2.83V/1m # Sensitivity 83.3 dB 1W/1m # Voice Coil Diameter 1" # Resonant Frequency (Fs) 90 Hz # DC Resistance (Re) 6.39 ohms # Voice Coil Inductance (Le) 0.49 mH # Mechanical Q (Qms) 2.37 # Electromagnetic Q (Qes) 0.76 # Total Q (Qts) 0.58 # Compliance Equivalent Volume (Vas) 0.05 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.82 mm/N # BL Product (BL) 4.2 Tm # Diaphragm Mass Inc. Airload (Mms) 3.63g # Maximum Linear Excursion (Xmax) 3.5 mm # Surface Area of Cone (Sd) 35.3 cm^2 # Overall Outside Diameter 3.86" # Baffle Cutout Diameter 3.04" # Depth 2.01" # Bolt Circle Diameter 3.54" # Mounting Holes 6 # Sealed Volume 0.04 ft.^3 # Sealed F3 136 Hz # Vented Volume 0.1 ft.^3 # Vented F367 Hz # Qes = 0.76; Xmax = 3.5; Dia = 4.0 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.58; Fs = 90; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio RS100-4 4\" Reference Full-Range Driver, 4 Ohm, $28.85:\n\n"); # # 30 watts RMS/60 watts max, 82 to 20,000 Hz, 85.9 dB 2.83V/1m # # Nominal Diameter 4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 4 ohms # Frequency Response 82 to 20,000 Hz # Sensitivity 85.9 dB 2.83V/1m # Voice Coil Diameter 1" # Resonant Frequency (Fs) 82 Hz # DC Resistance (Re) 2.96 ohms # Voice Coil Inductance (Le) 0.28 mH # Mechanical Q (Qms) 2.55 # Electromagnetic Q (Qes) 0.66 # Total Q (Qts) 0.53 # Compliance Equivalent Volume (Vas) 0.05 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.83 mm/N # BL Product (BL) 3.18 Tm # Diaphragm Mass Inc. Airload (Mms) 4.25g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd)35.3 cm^2 # Overall Outside Diameter 3.86" # Baffle Cutout Diameter 3.06" # Depth 1.8" # Bolt Circle Diameter 3.54" # Mounting Holes 6 # Sealed Volume 0.04 ft.^3 # Sealed F3 122 Hz # Vented Volume 0.1 ft.^3 # Vented F3 59 Hz # Qes = 0.66; Xmax = 4; Dia = 4.0 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.53; Fs = 82; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND105-4 4\" Aluminum Cone Midbass Driver, 4 Ohm, $26.90:\n\n"); # # 30 watts RMS/60 watts max, 60 to 10,000 Hz, 82.6 dB 1W/1m # # Nominal Diameter 4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 4 ohms # Frequency Response 60 to 10,000 Hz # Sensitivity 82.6 dB 1W/1m # Voice Coil Diameter1" # Resonant Frequency (Fs) 53.8 Hz # DC Resistance (Re) 3.7 ohms # Voice Coil Inductance (Le) 0.78 mH # Mechanical Q (Qms) 7.16 # Electromagnetic Q (Qes) 0.59 # Total Q (Qts) 0.55 # Compliance Equivalent Volume (Vas) 0.16 ft.^3 # Mechanical Compliance of Suspension (Cms) 1.2 mm/N # BL Product (BL) 3.9 Tm # Diaphragm Mass Inc. Airload (Mms) 7.2g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 51.5 cm^2 # Overall Outside Diameter 4.13" # Baffle Cutout Diameter 3.66" # Depth 2.64" # Mounting Holes 4 # Sealed Volume 0.1 ft.^3 # Sealed F3 84 Hz # Vented Volume 0.3 ft.^3 # Vented F3 41 Hz # Qes = 0.59; Xmax = 4; Dia = 4.0 * 2.54; Vas = 0.16 / 0.0353157; Qts = 0.55; Fs = 53.8; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio RS270-8 10\" Aluminum Cone Reference Woofer, 8 Ohm, $90.94:\n\n"); # # 100 watts RMS/200 watts max, 27 to 2,040 Hz, 87 dB 1W/1m # # Nominal Diameter 10" # Power Handling (RMS) 100 Watts # Power Handling (max) 200 Watts # Impedance 8 ohms # Frequency Response 27 to 2,040 Hz # Sensitivity 86.6 dB 2.83V/1m # Sensitivity 87 dB 1W/1m # Voice Coil Diameter 2" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 27 Hz # DC Resistance (Re) 6.84 ohms # Voice Coil Inductance (Le) 0.93 mH # Mechanical Q (Qms) 2.08 # Electromagnetic Q (Qes) 0.61 # Total Q (Qts) 0.47 # Compliance Equivalent Volume (Vas) 3.4 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.57 mm/N # BL Product (BL) 10.3 Tm # Diaphragm Mass Inc. Airload (Mms) 35.8g # Maximum Linear Excursion (Xmax) 6.6 mm # Surface Area of Cone (Sd) 346.4 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Aluminum # Basket / Frame Material Cast Aluminum # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 10.71" # Baffle Cutout Diameter 9.29" # Depth 4.45" # Bolt Circle Diameter 10.16" # Mounting Holes 6 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion) # # Sealed Volume 1.38 ft.^3 # Sealed F3 49 Hz # Vented Volume 4.5 ft.^3 # Vented F3 25.6 Hz # Qes = 0.61; Xmax = 6.6; Dia = 10.0 * 2.54; Vas = 3.4 / 0.0353157; Qts = 0.47; Fs = 27; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("HiVi M6N 6\" Aluminum/Magnesium Midbass, 8 Ohm, $24.91:\n\n"); # # 45 watts RMS/90 watts max, 46 to 8,000 Hz, 89 dB 1W/1m # # Product Specifications # # Nominal Diameter 6" # Power Handling (RMS) 45 Watts # Power Handling (max) 90 Watts # Impedance 8 ohms # Frequency Response 46 to 8,000 Hz # Sensitivity 89 dB 2.83V/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 46 Hz # DC Resistance (Re) 6.5 ohms # Mechanical Q (Qms) 4.69 # Electromagnetic Q (Qes) 0.42 # Total Q (Qts) 0.39 # Compliance Equivalent Volume (Vas) 0.77 ft.^3 # Mechanical Compliance of Suspension (Cms) NULL mm/N # Diaphragm Mass Inc. Airload (Mms) 13.6g # Maximum Linear Excursion (Xmax) 4.3 mm # Surface Area of Cone (Sd) NULL cm^2 # # Materials of Construction # # Cone Material Aluminum / Magnesium # Voice Coil FormerKapton / Polyimide # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 7" # Baffle Cutout Diameter 5.313" # Depth 4.0625" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.23 ft.^3 # Sealed F3 87 Hz # Vented Volume 0.72 ft.^3 # Vented F3 46 Hz # Qes = 0.42; Xmax = 4.3; Dia = 6.0 * 2.54; Vas = 0.77 / 0.0353157; Qts = 0.39; Fs = 46; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("HiVi M5N 5\" Aluminum/Magnesium Midbass, 8 Ohm, $21.73:\n\n"); # # 35 watts RMS/70 watts max, 50 to 6,000 Hz, 87 dB 1W/1m # # Product Specifications # # Nominal Diameter 5" # Power Handling (RMS) 35 Watts # Power Handling (max)70 Watts # Impedance 8 ohms # Frequency Response 50 to 6,000 Hz # Sensitivity 87 dB 2.83V/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 50 Hz # DC Resistance (Re) 6.5 ohms # Mechanical Q (Qms) 6.51 # Electromagnetic Q (Qes) 0.37 # Total Q (Qts) 0.35 # Compliance Equivalent Volume (Vas) 0.4 ft.^3 # Mechanical Compliance of Suspension (Cms) 1.1 mm/N # Diaphragm Mass Inc. Airload (Mms) 10.7g # Maximum Linear Excursion (Xmax) 2.7 mm # Surface Area of Cone (Sd) 87 cm^2 # # Materials of Construction # # Cone Material Aluminum / Magnesium # Voice Coil FormerKapton / Polyimide # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 5.63" # Baffle Cutout Diameter 4.94" # Depth 4" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.1 ft.^3 # Sealed F3 102 Hz # Vented Volume 0.31 ft.^3 # Vented F3 55 Hz # Qes = 0.37; Xmax = 2.7; Dia = 5 * 2.54; Vas = 0.4 / 0.0353157; Qts = 0.35; Fs = 50; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("HiVi M8a 8\" Aluminum/Magnesium Woofer, 8 Ohm, $47.73:\n\n"); # # 80 watts RMS/160 watts max, 30 to 3,000 Hz, 88 dB 1W/1m # # Product Specifications # # Nominal Diameter 8" # Power Handling (RMS) 80 Watts # Power Handling (max) 160 Watts # Impedance 8 ohms # Frequency Response 30 to 3,000 Hz # Sensitivity 88 dB 2.83V/1m # Voice Coil Diameter 1.38" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 33 Hz # DC Resistance (Re) 6.5 ohms # Mechanical Q (Qms) 4.59 # Electromagnetic Q (Qes) 0.49 # Total Q (Qts) 0.44 # Compliance Equivalent Volume (Vas) 1.49 ft.^3 # Mechanical Compliance of Suspension (Cms) 0.61 mm/NBL # Product (BL) 10.5 Tm # Diaphragm Mass Inc. Airload (Mms) 38.1g # Maximum Linear Excursion (Xmax) 5.8 mm # Surface Area of Cone (Sd) 214 cm^2 # # Materials of Construction # # Cone Material Aluminum / Magnesium # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Cast Aluminum # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 8.47" # Baffle Cutout Diameter 7.36" # Depth 3.54" # # Mounting Holes 6 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.56 ft.^3 # Sealed F3 60 Hz # Vented Volume 1.74 ft.^3 # Vented F3 32 Hz # Qes = 0.49; Xmax = 5.8; Dia = 8 * 2.54; Vas = 1.49 / 0.0353157; Qts = 0.44; Fs = 33; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("HiVi M8N 8\" Aluminum/Magnesium Woofer, 8 Ohm, $34.86:\n\n"); # # 80 watts RMS/160 watts max, 29 to 2,000 Hz, 86 dB 1W/1m # # Product Specifications # # Nominal Diameter 8" # Power Handling (RMS) 80 Watts # Power Handling (max) 160 Watts # Impedance 8 ohms # Frequency Response 29 to 2,000 Hz # Sensitivity 86 dB 2.83V/1m # Voice Coil Diameter 1.375" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 29 Hz # DC Resistance (Re) 6.5 ohms # Mechanical Q (Qms) 5.02 # Electromagnetic Q (Qes) 0.5 # Total Q (Qts) 0.45 # Compliance Equivalent Volume (Vas) 1.89 ft.^3 # Maximum Linear Excursion (Xmax) 5.8 mm # # Materials of Construction # # Cone Material Aluminum / Magnesium # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 8.74" # Baffle Cutout Diameter 7.01" # Depth 3.62" # # Mounting Holes 6 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.67 ft.^3 # Sealed F3 55 Hz # Vented Volume 2.15 ft.^3 # Vented F3 29 Hz # Qes = 0.5; Xmax = 5.8; Dia = 8 * 2.54; Vas = 1.89 / 0.0353157; Qts = 0.45; Fs = 29; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio DA115-8 4\" Aluminum Cone Woofer, 8 Ohm, $16.13:\n\n"); # # 20 watts RMS/40 watts max, 60 to 15,000 Hz, 84.9 dB 1W/1m # # Product Specifications # # Nominal Diameter 4" # Power Handling (RMS) 20 Watts # Power Handling (max) 40 Watts # Impedance8 ohms # Frequency Response 60 to 15,000 Hz # Sensitivity 84.9 dB 1W/1m # Voice Coil Diameter 2" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 60 Hz # DC Resistance (Re) 6.4 ohms # Voice Coil Inductance (Le) 0.7mH # Mechanical Q (Qms) 2.6 # Electromagnetic Q (Qes) 0.49 # Total Q (Qts) 0.41 # Compliance Equivalent Volume (Vas) 0.16 ft^3 # Mechanical Compliance of Suspension (Cms) 1.1 mm/N # BL Product (BL) 5.7 Tm # Diaphragm Mass Inc. Airload (Mms) 6.6g # Maximum Linear Excursion (Xmax) 2.5mm # Surface Area of Cone (Sd) 53.1 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire MaterialCopper # Voice Coil Former Aluminum # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 4.55" # Baffle Cutout Diameter 3.66" # Depth 2.26" # Bolt Circle Diameter 4.21" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.04 ft^3 # Sealed F3 125 Hz # Vented Volume 0.13 ft^3 # Vented F3 68 Hz # Qes = 0.49; Xmax = 2.5; Dia = 4 * 2.54; Vas = 0.16 / 0.0353157; Qts = 0.41; Fs = 60; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio DA135-8 5-1/4\" Aluminum Cone Woofer, 8 Ohm, $21.54:\n\n"); # # 30 watts RMS/60 watts max, 50 to 15,000 Hz, 85 dB 1W/1m # # Product Specifications # # Nominal Diameter 5-1/4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 8 ohms # Frequency Response 50 to 15,000 Hz # Sensitivity 85 dB 1W/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 56.5 Hz # DC Resistance (Re) 6.4 ohms # Voice Coil Inductance (Le) 0.97mH # Mechanical Q (Qms) 2.61 # Electromagnetic Q (Qes) 0.68 # Total Q (Qts) 0.54 # Compliance Equivalent Volume (Vas) 0.26 ft^3 # Mechanical Compliance of Suspension (Cms) 0.93 mm/N # BL Product (BL) 5.32 Tm # Diaphragm Mass Inc. Airload (Mms) 8.54g # Maximum Linear Excursion (Xmax) 3 mm # Surface Area of Cone (Sd) 75.4 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Aluminum # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 5.31" # Baffle Cutout Diameter 4.39" # Depth 2.48" # Bolt Circle Diameter 4.96" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.16 ft^3 # Sealed F3 89 Hz # Vented Volume 0.47 ft^3 # Vented F3 44 Hz # Qes = 0.68; Xmax = 3; Dia = 5.25 * 2.54; Vas = 0.26 / 0.0353157; Qts = 0.54; Fs = 56.5; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio DA175-8 7\" Aluminum Cone Woofer, 8 Ohm, $28.58:\n\n"); # # 50 watts RMS/100 watts max, 35 to 10,000 Hz, 85 dB 1W/1m # # Product Specifications # # Nominal Diameter 7" # Power Handling (RMS) 50 Watts # Power Handling (max) 100 Watts # Impedance 8 ohms # Frequency Response 35 to 10,000 Hz # Sensitivity 85 dB 1W/1m # Voice Coil Diameter 1.38" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 39 Hz # DC Resistance (Re) 5.9 ohms # Voice Coil Inductance (Le) 1.14mH # Mechanical Q (Qms) 3.31 # Electromagnetic Q (Qes) 0.7 # Total Q (Qts) 0.58 # Compliance Equivalent Volume (Vas) 0.58 ft^3 # Mechanical Compliance of Suspension (Cms) 0.66 mm/N # BL Product (BL) 7.17 Tm # Diaphragm Mass Inc. Airload (Mms) 25.17g # Maximum Linear Excursion (Xmax) 4.25 mm # Surface Area of Cone (Sd) 132.7 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Aluminum # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 6.91" # Baffle Cutout Diameter 5.67" # Depth 3.19" # Bolt Circle Diameter 6.54" # # Mounting Holes 5 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.46 ft^3 # Sealed F3 57 Hz # Vented Volume 1.2 ft^3 # Vented F3 28 Hz # Qes = 0.7; Xmax = 4.25; Dia = 7 * 2.54; Vas = 0.58 / 0.0353157; Qts = 0.58; Fs = 39; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio DA215-8 8\" Aluminum Cone Woofer, 8 Ohm, $32.86:\n\n"); # # 60 watts RMS/120 watts max, 35 to 8,000 Hz, 88.7 dB 1W/1m # # Product Specifications # # Nominal Diameter 8" # Power Handling (RMS) 60 Watts # Power Handling (max) 120 Watts # Impedance 8 ohms # Frequency Response 35 to 8,000 Hz # Sensitivity 88.7 dB 1W/1m # Voice Coil Diameter 1.42" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 34.9 Hz # DC Resistance (Re) 6.8 ohms # Voice Coil Inductance (Le) 1.44mH # Mechanical Q (Qms) 1.95 # Electromagnetic Q (Qes) 0.45 # Total Q (Qts) 0.37 # Compliance Equivalent Volume (Vas) 1.51 ft^3 # Mechanical Compliance of Suspension (Cms) 0.68 mm/N # BL Product (BL) 10 Tm # Diaphragm Mass Inc. Airload (Mms) 30.3g # Maximum Linear Excursion (Xmax) 5.3 mm # Surface Area of Cone (Sd) 211.2 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Aluminum # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 8.5" # Baffle Cutout Diameter 7.09" # Depth 3.72" # Bolt Circle Diameter 8.13" # # Mounting Holes 5 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.32 ft^3 # Sealed F3 81 Hz # Vented Volume 0.89 ft^3 # Vented F3 46 Hz # Qes = 0.45; Xmax = 5.3; Dia = 8 * 2.54; Vas = 1.51 / 0.0353157; Qts = 0.37; Fs = 34.9; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio DA270-8 10\" Aluminum Cone Woofer, 8 Ohm, $49.35:\n\n"); # # 80 watts RMS/160 watts max, 25 to 6,000 Hz, 88.2 dB 1W/1m # # Product Specifications # # Nominal Diameter 10" # Power Handling (RMS) 80 Watts # Power Handling (max) 160 Watts # Impedance 8 ohms # Frequency Response 25 to 6,000 Hz # Sensitivity 88.2 dB 1W/1m # Voice Coil Diameter 1.42" # Magnet Weight 53 oz. # # Thiele-Small Parameters # # Resonant Frequency (Fs) 27.8 Hz # DC Resistance (Re) 6.3 ohms # Voice Coil Inductance (Le) 1.2mH # Mechanical Q (Qms) 1.95 # Electromagnetic Q (Qes) 0.55 # Total Q (Qts) 0.43 # Compliance Equivalent Volume (Vas) 3.83 ft^3 # Mechanical Compliance of Suspension (Cms) 0.64 mm/N # BL Product (BL) 10.1 Tm # Diaphragm Mass Inc. Airload (Mms) 51.3g # Maximum Linear Excursion (Xmax) 6.1 mm # Surface Area of Cone (Sd) 346.4 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Aluminum # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 10.63" # Baffle Cutout Diameter 8.94" # Depth 4.53" # Bolt Circle Diameter 10.24" # # Mounting Holes 5 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 1.2 ft^3 # Sealed F3 55 Hz # Vented Volume 3.74 ft^3 # Vented F3 30 Hz # Qes = 0.55; Xmax = 6.1; Dia = 10 * 2.54; Vas = 3.83 / 0.0353157; Qts = 0.43; Fs = 27.8; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND105-8 4\" Aluminum Cone Midbass Driver, 8 Ohm, $26.90:\n\n"); # # 30 watts RMS/60 watts max, 60 to 10,000 Hz, 83.2 dB 1W/1m # # Product Specifications # # Nominal Diameter 4" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 8 ohms # Frequency Response 60 to 10,000 Hz # Sensitivity 83.2 dB 1W/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 65.3 Hz # DC Resistance (Re) 7.6 ohms # Voice Coil Inductance (Le)1.37mH # Mechanical Q (Qms) 7.61 # Electromagnetic Q (Qes) 0.73 # Total Q (Qts) 0.66 # Compliance Equivalent Volume (Vas) 0.12 ft^3 # Mechanical Compliance of Suspension (Cms) 0.95 mm/N # BL Product (BL) 4.9 Tm # Diaphragm Mass Inc. Airload (Mms) 6.3g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 51.5 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Steel # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 4.13" # Baffle Cutout Diameter 3.66" # Depth 2.64" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.18 ft^3 # Sealed F3 85 Hz # Vented Volume 0.35 ft^3 # Vented F3 43 Hz # Qes = 0.73; Xmax = 4; Dia = 4 * 2.54; Vas = 0.12 / 0.0353157; Qts = 0.66; Fs = 65.3; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND140-4 5-1/4\" Aluminum Cone Midbass Driver, 4 Ohm, $30.65:\n\n"); # # 40 watts RMS/80 watts max, 54 to 8,000 Hz, 85.3 dB 1W/1m # # Product Specifications # # Nominal Diameter 5-1/4" # Power Handling (RMS) 40 Watts # Power Handling (max) 80 Watts # Impedance 4 ohms # Frequency Response 54 to 8,000 Hz # Sensitivity 85.3 dB 2.83V/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 54 Hz # DC Resistance (Re) 3.7 ohms # Voice Coil Inductance (Le) 0.72mH # Mechanical Q (Qms) 6.59 # Electromagnetic Q (Qes) 0.74 # Total Q (Qts) 0.66 # Compliance Equivalent Volume (Vas) 0.36 ft^3 # Mechanical Compliance of Suspension (Cms) 0.97 mm/N # BL Product (BL) 3.9 Tm # Diaphragm Mass Inc. Airload (Mms) 9g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 86.6 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Former Kapton / Polyimide # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 5.5" # Baffle Cutout Diameter 4.75" # Depth 2.5" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.78 ft^3 # Sealed F3 65 Hz # Vented Volume 1 ft^3 # Vented F3 34 Hz # Qes = 0.74; Xmax = 4; Dia = 5.25 * 2.54; Vas = 0.36 / 0.0353157; Qts = 0.66; Fs = 54; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND140-8 5-1/4\" Aluminum Cone Midbass Driver, 8 Ohm, $30.65:\n\n"); # # 40 watts RMS/80 watts max, 54 to 8,000 Hz, 85.7 dB 1W/1m # # Product Specifications # # Nominal Diameter 5-1/4" # Power Handling (RMS) 40 Watts # Power Handling (max) 80 Watts # Impedance 8 ohms # Frequency Response 54 to 8,000 Hz # Sensitivity 85.7 dB 1W/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 53.8 Hz # DC Resistance (Re) 6.9 ohms # Voice Coil Inductance (Le) 1.45mH # Mechanical Q (Qms) 5.55 # Electromagnetic Q (Qes) 0.68 # Total Q (Qts) 0.61 # Compliance Equivalent Volume (Vas) 0.36 ft^3 # Mechanical Compliance of Suspension (Cms) 0.99 mm/N # BL Product (BL) 5.5 Tm # Diaphragm Mass Inc. Airload (Mms) 8.9g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 86.6 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Steel # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 5.43" # Baffle Cutout Diameter 4.72" # Depth 2.78" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.36 ft^3 # Sealed F3 75 Hz # Vented Volume 0.84 ft^3 # Vented F3 37 Hz # Qes = 0.68; Xmax = 4; Dia = 5.25 * 2.54; Vas = 0.36 / 0.0353157; Qts = 0.61; Fs = 53.8; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND65-4 2-1/2\" Aluminum Cone Full-Range Driver, 4 Ohm, $19.30:\n\n"); # # 15 watts RMS/30 watts max, 85 to 20,000 Hz, 79.4 dB 1W/1m # # Product Specifications # # Nominal Diameter 2-1/2" # Power Handling (RMS) 15 Watts # Power Handling (max) 30 Watts # Impedance 4 ohms # Frequency Response 85 to 20,000 Hz # Sensitivity 79.4 dB 1W/1m # Voice Coil Diameter 0.75" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 84.1 Hz # DC Resistance (Re) 3.4 ohms # Voice Coil Inductance (Le) 0.41 mH # Mechanical Q (Qms) 5.76 # Electromagnetic Q (Qes) 0.8 # Total Q (Qts) 0.7 # Compliance Equivalent Volume (Vas) 0.03 ft^3 # Mechanical Compliance of Suspension (Cms) 1.65 mm/N # BL Product (BL) 2.2 Tm # Diaphragm Mass Inc. Airload (Mms) 2.2g # Maximum Linear Excursion (Xmax) 3.5 mm # Surface Area of Cone (Sd) 15.6 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Steel # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 2.52" # Baffle Cutout Diameter 2.05" # Depth 1.89" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.05 ft^3 # Sealed F3 102 Hz # Vented Volume 0.08 ft^3 # Vented F3 53 Hz # Qes = 0.8; Xmax = 3.5; Dia = 2.5 * 2.54; Vas = 0.03 / 0.0353157; Qts = 0.7; Fs = 84.1; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND65-8 2-1/2\" Aluminum Cone Full-Range Driver, 8 Ohm, $19.30:\n\n"); # # 15 watts RMS/30 watts max, 80 to 20,000 Hz, 78.3 dB 1W/1m # # Product Specifications # # Nominal Diameter 2-1/2" # Power Handling (RMS) 15 Watts # Power Handling (max) 30 Watts # Impedance 8 ohms # Frequency Response 80 to 20,000 Hz # Sensitivity 78.3 dB 1W/1m # Voice Coil Diameter 0.75" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 80.8 Hz # DC Resistance (Re) 7.2 ohms # Voice Coil Inductance (Le) 0.58mH # Mechanical Q (Qms) 5.64 # Electromagnetic Q (Qes) 0.69 # Total Q (Qts) 0.62 # Compliance Equivalent Volume (Vas) 0.02 ft^3 # Mechanical Compliance of Suspension (Cms) 1.69 mm/N # BL Product (BL) 3.5 Tm # Diaphragm Mass Inc. Airload (Mms) 2.3g # Maximum Linear Excursion (Xmax) 3.5 mm # Surface Area of Cone (Sd) 15.6 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Former Kapton / Polyimide # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 2.5" # Baffle Cutout Diameter 2.05" # Depth 2" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.02 ft^3 # Sealed F3 111 Hz # Vented Volume 0.05 ft^3 # Vented F3 55 Hz # Qes = 0.69; Xmax = 3.5; Dia = 2.5 * 2.54; Vas = 0.02 / 0.0353157; Qts = 0.62; Fs = 80.8; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND90-8 3-1/2\" Aluminum Cone Full-Range Driver, 8 Ohm, $21.35:\n\n"); # # 20 watts RMS/40 watts max, 80 to 15,000 Hz, 82.1 dB 1W/1m # # Product Specifications # # Nominal Diameter 3-1/2" # Power Handling (RMS) 20 Watts # Power Handling (max) 40 Watts # Impedance 8 ohms # Frequency Response 80 to 15,000 Hz # Sensitivity 82.1 dB 1W/1m # Voice Coil Diameter 0.75" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 80 Hz # DC Resistance (Re) 7.5 ohms # Voice Coil Inductance (Le) 0.54mH # Mechanical Q (Qms) 4.25 # Electromagnetic Q (Qes) 0.85 # Total Q (Qts) 0.71 # Compliance Equivalent Volume (Vas) 0.05 ft^3 # Mechanical Compliance of Suspension (Cms) 0.79 mm/N # BL Product (BL)4.4 Tm # Diaphragm Mass Inc. Airload (Mms) 4.7g # Maximum Linear Excursion (Xmax) 4 mm # Surface Area of Cone (Sd) 31.2 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Copper # Voice Coil Former Kapton / Polyimide # Basket / Frame Material Steel # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 4.07" # Baffle Cutout Diameter 3.35" # Depth 2.39" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.1 ft^3 # Sealed F3 96 Hz # Vented Volume 0.15 ft^3 # Vented F3 50 Hz # Qes = 0.85; Xmax = 4.0; Dia = 3.5 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.71; Fs = 80; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND91-4 3-1/2\" Aluminum Cone Full-Range Driver, 4 Ohm, $28.65:\n\n"); # # 30 watts RMS/60 watts max, 65 to 17,000 Hz, 81.3 dB 1W/1m # # Product Specifications # # Nominal Diameter 3-1/2" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 4 ohms # Frequency Response 65 to 17,000 Hz # Sensitivity 81.3 dB 1W/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 63.4 Hz # DC Resistance (Re) 4.1 ohms # Voice Coil Inductance (Le) 0.74mH # Mechanical Q (Qms) 3.06 # Electromagnetic Q (Qes) 0.44 # Total Q (Qts) 0.38 # Compliance Equivalent Volume (Vas) 0.05 ft^3 # Mechanical Compliance of Suspension (Cms) 1.13 mm/N # BL Product (BL) 4.6 Tm # Diaphragm Mass Inc. Airload (Mms) 5.6g # Maximum Linear Excursion (Xmax) 4.6 mm # Surface Area of Cone (Sd) 30.4 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Aluminum # Voice Coil FormerKapton / Polyimide # Basket / Frame Material Steel # Magnet Material Ferrite # # Mounting Information # # Overall Outside Diameter 3.35" # Baffle Cutout Diameter 3.01" # Depth 2.22" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.01 ft^3 # Sealed F3 132 Hz # Vented Volume 0.03 ft^3 # Vented F3 73 Hz # Qes = 0.44; Xmax = 4.6; Dia = 3.5 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.38; Fs = 63.4; # parameters (Vas, Qts, Fs, Qtc, Qes); # printf ("Dayton Audio ND91-8 3-1/2\" Aluminum Cone Full-Range Driver, 8 Ohm, $28.65:\n\n"); # # 30 watts RMS/60 watts max, 70 to 17,000 Hz, 81.4 dB 1W/1m # # Product Specifications # # Nominal Diameter 3-1/2" # Power Handling (RMS) 30 Watts # Power Handling (max) 60 Watts # Impedance 8 ohms # Frequency Response 70 TO 17,000 Hz # Sensitivity 81.4 dB 1W/1m # Voice Coil Diameter 1" # # Thiele-Small Parameters # # Resonant Frequency (Fs) 69.6 Hz # DC Resistance (Re) 7.4 ohms # Voice Coil Inductance (Le) 1.42mH # Mechanical Q (Qms) 3.08 # Electromagnetic Q (Qes) 0.46 # Total Q (Qts) 0.4 # Compliance Equivalent Volume (Vas) 0.05 ft^3 # Mechanical Compliance of Suspension (Cms) 1 mm/N # BL Product (BL) 6 Tm # Diaphragm Mass Inc. Airload (Mms) 5.2g # Maximum Linear Excursion (Xmax) 5.1 mm # Surface Area of Cone (Sd) 30.4 cm^2 # # Materials of Construction # # Cone Material Aluminum # Surround Material Rubber # Voice Coil Wire Material Aluminum # Voice Coil FormerKapton / Polyimide # Basket / Frame MaterialSteel # Magnet Material Neodymium # # Mounting Information # # Overall Outside Diameter 3.35" # Baffle Cutout Diameter 3.01" # Depth 2.22" # Bolt Circle Diameter 3.66" # # Mounting Holes 4 # # Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity # suggestion) # # Sealed Volume 0.02 ft^3 # Sealed F3 139 Hz # Vented Volume 0.04 ft^3 # Vented F3 75 Hz # Qes = 0.46; Xmax = 5.1; Dia = 3.5 * 2.54; Vas = 0.05 / 0.0353157; Qts = 0.4; Fs = 69.6; # parameters (Vas, Qts, Fs, Qtc, Qes); # frequency (Qts, Fs, Qtc);