Mixing 4 audio channels to 3?
On Wed, 26 Oct 2011 08:50:55 -0700 (PDT), NT
wrote:
On Oct 26, 7:58*am, DaveC wrote:
I want to connect the audio out (headphone jack) of 2 computer sound cards to
a desktop & woofer speaker-amp combination. (The original input was via USB
only and I'm modifying this for analog audio input.)
This is my guess at the necessary resistors to mix down these 4 outputs to
the 3 inputs in the amplifier (L, R, sub):
http://i41.tinypic.com/97mpud.jpg
Lose Rs 1-4, keep 5-8, lose R11, and lose C1,2,3, then itll be good.
NT
Is there something wrong with my browser? I can't see any of these
component references. Actually I see what you mean. One problem here
is that R9 and R10 are going to cause crosstalk. Without some active
electronics there is no way around that apart from taking the sub from
one channel only. This is actually quite common.
d
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