- Grambo wrote:
Not sure what it is about the LM358, but the 2nd channel doesn't appear to work for me at all.
I just used the 1st channel on the op amp. I've adjusted my schematic accordingly.
Noise floor is super low now and headphone fader no longer adjusts the volume
ive got to try your circuit, grambo.
I cant say i like the ccam, although it is clear. i find the low volume level and slight hiss annoying. but a more powerful va5 or va6 would kick serious ass.
heres my ccam with the audio amp added and the volume slider hooked up. im happy to say the volume slider now works although the amp doesnt. It cuts out when i turn it up. These were taken before i moved the ccam board to
that empty spot with the ground plane.
Im also in the process of installing a .1uf cap and 20k dual input pot where the filter caps go, so i can tune the highs and lows.
btw, the ccam works awesome. Its just not loud enough. that was the purpouse of installing this 3w amplifier.
i think someone before made a comment that im dealing with a non-biased output and the amp is looking for a biased one or vice versa.
I didnt understand it. ive never run into an analog output that couldnt be amped, but it doesnt mean there isnt one.
how would i give the amp what it is looking for?