[Garbz]

I've googled this a while now and I can't seem to find anything. What i'm looking for is a variable phase control circuit using an opamp, pot, and ofcourse any other components required.

This will basically be part of a preamp for a subwoofer so a simple 0/180degree phase switch is insufficent. I've seen similar things on many amps before but can't for the life of me figure out how it's done.

Any ideas?

 

[funch]

Many moons ago I had an Apt-Holman preamp. IIRC it had a variable phase control. You might try to find a schematic for it to see how Holman did it.

 

[Garbz]

Bugger I didn't realise that this actually posted. I've spent about a month looking for one while researching my sub, and then found one on the same site where I was getting a lot of other sub info from just as I hit the post button. I tried to hit stop but no sucess.

For anyone who's interested: http://sound.westhost.com/project103.htm