tough question

Bwcad1 · Post by **Bwcad1** » Tue May 02, 2006 4:21 am

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.

joeyc · Post by **joeyc** » Tue May 02, 2006 5:15 am

hmmm,i don't know how that would help

Bwcad1 · Post by **Bwcad1** » Tue May 02, 2006 5:38 am

the only thing i can think of is it would shunt noise and possible change the reactive load...

Robert Wollenberg · Post by **Robert Wollenberg** » Tue May 02, 2006 7:04 am

wow, that's interesting.

Post by **GlassWolf** » Tue May 02, 2006 7:27 am

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.

Bwcad1 · Post by **Bwcad1** » Tue May 02, 2006 7:57 am

is there any benifit to it?

solacedagony · Post by **solacedagony** » Tue May 02, 2006 8:32 am

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.

Bwcad1 · Post by **Bwcad1** » Tue May 02, 2006 8:47 am

no i dont think feedback sounds any good lol. but load matching sounds nice.

Robert Wollenberg · Post by **Robert Wollenberg** » Tue May 02, 2006 9:05 am

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.

OnYrMrk · Post by **OnYrMrk** » Tue May 02, 2006 9:37 am

I like the oscillator fans...helps keep the room cooler...