Crack & LOW impedance phones?

[tsingle999]

Thanks guys! I heard the Audio Technica ATH-AD2000's at the last VSAC and fell in love with them Been waiting for a really long time for a really good deal on them...

 

[ironbut]

Yes, that's the same price I paid for mine used 3 1/2 years ago.
If I can scare up a little spare cash, I might have to get a back up pair!

 

[Paul Birkeland]

Todd, what size of coupling caps are you running at the outputs?

The amp is stock but with the Speedball update.

Drop a pair of 330uf caps in place of the 160uf ones.

It won't solve the output impedance issue, but it will solve the bass rolloff of 160uf caps into 16 ohms, as you have a -3db point of no less than 60hz, not acceptable by most standards.