Capacitors in Cabinets

polsol · 28th August 2004, 07:48 AM

Have been thinking for a while about the advisability of putting capacitors into passive speaker boxes. As there are a lot of acoustical waves bouncing around in the cabinet, is it not possible that these could have an effect on distortion?
After all, capacitors are neither opaque or transparent to audio waves and there must be some transmission of the waves through the capacitors themselves which would, presumably, produce variations in the capacitance and modulate the signal.
Has this ever been investigated
Just a thought but comments would be appreciated.

Regards,

Variac · 28th August 2004, 08:24 AM

Generally in the Fanatical Audiophile world people keep the crossover filters outside the box for this reason- also because you can then keep tweaking the values until you go insane..

thoriated · 29th August 2004, 05:25 AM

These internal vibrations also affect inductors, which is why I pot the ones I wind or use foil type chokes to minimize susceptibility. You can also make a subcompartment within the speaker cabinet to hold xover components.

28th August 2004, 07:48 AM	#1
polsol diyAudio Member Join Date: Aug 2004 Location: Cape Town and Kuwait	Capacitors in Cabinets Have been thinking for a while about the advisability of putting capacitors into passive speaker boxes. As there are a lot of acoustical waves bouncing around in the cabinet, is it not possible that these could have an effect on distortion? After all, capacitors are neither opaque or transparent to audio waves and there must be some transmission of the waves through the capacitors themselves which would, presumably, produce variations in the capacitance and modulate the signal. Has this ever been investigated Just a thought but comments would be appreciated. Regards, __________________ Tony M

28th August 2004, 08:24 AM	#2
Variac diyAudio Editor Join Date: Dec 2001 Location: San Francisco, USA	Generally in the Fanatical Audiophile world people keep the crossover filters outside the box for this reason- also because you can then keep tweaking the values until you go insane.. __________________ Burning Amp Festival Sunday, October 28th, 2012 in S.F. We need Volunteers & sign-up's for what you're bringing!

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29th August 2004, 05:25 AM	#3
thoriated diyAudio Member Join Date: Nov 2003 Location: flyover country	These internal vibrations also affect inductors, which is why I pot the ones I wind or use foil type chokes to minimize susceptibility. You can also make a subcompartment within the speaker cabinet to hold xover components.

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