hello,
I'm trying to design a box for my full-range driver the Dayton audio RS100 4.
my problem is that on WINISD when I try using the recommended box size (from pars express) of :
I'm trying to design a box for my full-range driver the Dayton audio RS100 4.
my problem is that on WINISD when I try using the recommended box size (from pars express) of :
Attachments
FYI/FWIW, technically better to use at least a 0.5 ohm series resistance for even large gauge wiring, so the box size, tuning will ideally be even larger/lower tuned.
Correct, the driver's motor specs, Fs combined with its Vas sets box size, tuning, so with a > 0.403 Qts' where Vb = Vas, Fb = Fs, it's technically too weak a motor for BR alignments:
Vb = 20*Vas*Qts'^3.3
Fb = 0.42*Fs*Qts'^-0.96
[Qts']: [Qts] + any added series resistance [Rs]: http://www.mh-audio.nl/Calculators/newqts.html
[Rs] = 0.5 ohm minimum for wiring, so may be higher if a super small gauge is used as a series resistor plus any added resistance from an XO/whatever.
edit: FWIW, best BR for power handling is Vb = Vas/1.44 tuned to Fs, so a bit under-damped, though can be smoothed audibly enough by 'critically' damping the vent: Click Test:
Correct, the driver's motor specs, Fs combined with its Vas sets box size, tuning, so with a > 0.403 Qts' where Vb = Vas, Fb = Fs, it's technically too weak a motor for BR alignments:
Vb = 20*Vas*Qts'^3.3
Fb = 0.42*Fs*Qts'^-0.96
[Qts']: [Qts] + any added series resistance [Rs]: http://www.mh-audio.nl/Calculators/newqts.html
[Rs] = 0.5 ohm minimum for wiring, so may be higher if a super small gauge is used as a series resistor plus any added resistance from an XO/whatever.
edit: FWIW, best BR for power handling is Vb = Vas/1.44 tuned to Fs, so a bit under-damped, though can be smoothed audibly enough by 'critically' damping the vent: Click Test:
Looks about right to me. Remember: the cone excursion graph shown is what happens if you hit the driver with a 11.6V RMS sine tone (44.9w into the nominal impedance) at each frequency.
ie, if you play a 20Hz sine tone and turn the amp up to clipping, the driver will try to do 14mm of peak excursion.
That never happens in music, so you'll be okay as long as you keep an eye on things.. If you want to protect the drivers from very-low-frequency signals, a highpass filter should be inserted somewhere in the signal chain.
Chris