Rocket3004

Hey everyone

I read the thread on how to connect your computer's audio to your exisitng HU/amp, but I didn't see this issue addressed:

Is the output from the sound card "line-level/pre-amp"? I.e. do I need to use a speaker-level -> line-level converter before running the sound card output to my amp's input? I have a feeling that it is not a low-line level output, but I didn't see that issue addressed in that thread.

Thanks for the info!

rgarjr

the audio off a pc's sound card is low level. So you simply just run a 3.5mm to dual RCA type adapter, then run regular RCA type patch cables to your audio amp.

__________________
My carpc worklog

Rocket3004

Perfect, thank you. for some reason, I was thinking that it wasn't a low level output, but then again, computer speakers generally have a separate amp.

Any idea what the voltage is coming out of the sound card? I don't know if the even spec that kind of thing... I guess I'll have to check w/ the mobo documentation...

FusionFanatic

the output voltage is probably different for each mobo/soundcard. you can measure it with a multimeter set to AC volts.

the output will vary depending on volume and tone level. you'll need to use a test-tone to give a constant output, then with volume up all the way; measure either channel's positive to ground (audio ground, not chassis ground).

NOTE: this will be much easier to do from the RCA adapter outputs.

__________________
current carPC setup
previous carPC setup