unbalanced to balanced conversion

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=38479
Printed Date: May 05, 2025 at 10:38 AM

Topic: unbalanced to balanced conversion

Posted By: g35c
Subject: unbalanced to balanced conversion
Date Posted: September 01, 2004 at 11:14 PM

Has anyone done this before? and combined the 2 inputs thru a switch in order to select the source?

Replies:

Posted By: Ravendarat
Date Posted: September 01, 2004 at 11:54 PM

never tried that before, have fun with that and good Luck :)

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Posted By: g35c
Date Posted: September 02, 2004 at 10:05 PM

This should do the converting , BUt switching between 2 balanced sources should be interesting, Anyone have ideas on what to use as a switching device?

Posted By: dpaton
Date Posted: September 02, 2004 at 10:47 PM

There are much better (for a car) and cheaper ways to convert between them than an Extron box. The easiest way is a 600 ohm transformer with center taps on both windings. Check out the PDFs from Jensen in their applications section for some ideas.

If you want to switch two inputs, you'll need a 4PDT switch, one pole for hot and cold on each balanced channel. Make sure the grounds can be bussed on all 3 pieces of equipment first. Sometimes balanced gear in cars is wierd about that. If all else fails, get a 6pdt rotary switch (hot, cold, ground). I can probably cook up a schematic if you need me to.

-dave

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