Page 1 of 1

tough question

Posted: Tue May 02, 2006 4:21 am
by Bwcad1
hey guys i have a question not sure about it. i have noticed that alot of the competitors in the street max classes are running capacitors in parallel on there speaker outputs to the amps? what kind of advantage is there to this? ill explain again if its confusing. on the amp out put wires (speaker wires) they have a cap wired in paralell.

Posted: Tue May 02, 2006 5:15 am
by joeyc
hmmm,i don't know how that would help

Posted: Tue May 02, 2006 5:38 am
by Bwcad1
the only thing i can think of is it would shunt noise and possible change the reactive load...

Posted: Tue May 02, 2006 7:04 am
by Robert Wollenberg
wow, that's interesting.

Posted: Tue May 02, 2006 7:27 am
by GlassWolf
done for load matching.
the speaker acts as a coil in series with the capacitor in parallel, like a filter.
If the speaker and capacitor are both in parallel, you have an oscillator, which will create feedback across the amplifier.

Posted: Tue May 02, 2006 7:57 am
by Bwcad1
is there any benifit to it?

Posted: Tue May 02, 2006 8:32 am
by solacedagony
Feedback doesn't sound like a benefit. :-X
So the capacitor in parallel would just be a high pass filter?

Edit: Oscillator: An electronic sound source. In an analog synthesizer, oscillators typically produce regularly repeating fluctuations in voltage; that is, they oscillate. In a digital synth, an oscillator more typically plays back a complex waveform by reading the numbers in a wavetable.

Posted: Tue May 02, 2006 8:47 am
by Bwcad1
no i dont think feedback sounds any good lol. but load matching sounds nice.

Posted: Tue May 02, 2006 9:05 am
by Robert Wollenberg
I found this ...

http://www.ethanwiner.com/filters.html

scroll down a little to figure three, also attached.

Just apply that to an SPL burp I guess.

Posted: Tue May 02, 2006 9:37 am
by OnYrMrk
I like the oscillator fans...helps keep the room cooler...