Amp comparable with “The Wire Amp”

[Lazy Cat]

I was just being the devils advocate!

Yes, from now on you're doomed. 😀

 

[JOHN BALI]

Maybe I'm already doomed if I don't make any VSSA 😀
I'm very happy that I can made VSSA PeeCeeBee
It is Do It Yourself, so why not try simple "hand made" version like I do
It is fun you know 😀
http://www.diyaudio.com/forums/solid-state/231662-peeceebee-47.html

 

[BuildMeSomething]

hey about yours, are the inputs floating, grounded, or with signal when you are getting that much offset? with such a wide bandwidth DC coupled amp, leakage as well as stray noise pickup could easily cause that much, or a small amount of motorboating depending on your care with input and output wiring.

Initial offset measurements were made with everything floating, no signal &no grounding what so ever... My thoughts on the high offset echoed what you've said, plus maybe some thermal relief issues. 16 LME 49600 need a surface area between 32 & 64 inch^2 for proper heat dissipation, my PCB is roughly 8 inch^2...

Today, I finally had time to finish the build, over the course of listening to five cd albums [Neil Young, David Bowie, Ben Howard, Carolina Chocolate Drops & Mozart's Magic Flute], the offset was measured at the end of each.

Happy to say DC offset was constantly measuring <1 mV on both channels. Touch temp of PSU is warm-hot [10 sec touch time] and amp PCB is warm [touch until you get bored]...

Can't wait to get some proper speakers hooked-up, however, what I've heard so far has impressed 😀

Paul.