[lecky]

Quote:

Originally Posted by ericj /img/forum/go_quote.gif Keep in mind that the T-Amp's output is balanced, and you can damage it by trying to force it to run single-ended. Also that it's designed to drive a 4-ohm load, and the frequency response and distortion curves will get very weird if the load doesn't at least look like something in the neighborhood of 4 ohms. So, put a 5 or 6 ohm 10w resistor in parallel with the headphones.

So perhaps I shouldn't try that again...

Thanks for the heads up on that potential disaster.

Headie - thanks for that comprehensive answer, it seems quite clear.

 

[lecky]

Just to update - I got them this morning and the pads are pancake flat, but with the grey pads from the 990 pros they sound really nice. Very different to the 990pros. I think I can guess how a more powerful amp will improve them too, but even out of my portable amp they sound very good - very smooth mids in particular.

I'll restuff the old pads - seems easy enough.

Thanks for the comments and advice!