Need help designing a circuit for my carpc. - diyAudio
Go Back   Home > Forums > Source & Line > PC Based
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

PC Based Computer music servers, crossovers, and equalization

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 28th July 2012, 10:04 PM   #1
diyAudio Member
Join Date: Jul 2012
Default Need help designing a circuit for my carpc.

Mac Mini


Analog output, 3.5mm plug split to L/R RCA


Ground loop isolator


Circuit Box, L/R RCA inputs, hardwire splits the 2 inputs to four outputs, and 5v is applied to all the negative feed lines.


Monsoon Amplifier

Circuit requirement: Monitor the audio feed and when there is a signal turn on the 5v feed. When there is no audio signal turn off the 5v feed.

Why?? I'm sure you are wondering why in the world I would inject 5v into the negative lines feeding the amplifier. Well I did not design the Monsoon Amp and whoever did decided a seperate turn on circuit was too easy. So, to turn on this amp 6v is injected into all the lines +/-/L/R/F/B. Through reading and testing I have found that 5v on the left front negative line turns on the amp. But there is a buzz. 5v applied to all negative lines eliminates the buzz. When audio feed is off there is a buzz.

So, I want a circuit that monitors the audio line for a signal and then turn on/off the 5v feed accordingly.

  Reply With Quote
Old 30th July 2012, 03:39 PM   #2
diyAudio Member
Join Date: Jul 2012
Pac Audio TR-4, TR-7, and TR-7 Pro should do the trick.

Feel free to send me some help though.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Re-designing 6DJ8 circuit for the 6CG7 lordearl Tubes / Valves 31 16th June 2012 08:34 PM
Designing a Tube Rectifier Circuit Ducs Tubes / Valves 3 18th April 2012 06:35 PM
help designing a Linkwitz Transform circuit blrh93 Full Range 4 3rd November 2008 11:59 PM
Printed circuit board designing? flyinglemur Tubes / Valves 11 23rd March 2008 12:41 AM
PCB layout n circuit designing tanvicarrier Parts 0 12th August 2004 04:22 AM

New To Site? Need Help?

All times are GMT. The time now is 01:17 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2