Digital Amp's

I've only heard a couple of them, and not the very lattest versions. I've heard quite a few of the Spectron's in various systems and didn't care for them. Thats not to say that they don't work for others in other systems. I've only heard the TacT's briefly in less than ideal circumstances, but, in that context they may be amongst the top three or so amps I've heard. If I was in the postion to buy anything in their price range, I'd make it my business to give them a serious consideration. It's interesting that Audioengr finds the top end questionable, as this is exactly where I'm uncertain of their ultimate quality. Further listening is required.

I have tried the PS Audio HCA-2 and recently Channel Island D-100 Both excellent amps but like Audioengr give me a Class A SS amp.

Third Audioengr's comments. Also they are really fussy about getting clean power. I could not run my PS Audio through my Tripp-Lite surge protector - even with dedicated line. But for good sound on the cheap, not bad.

I own a modified Tact 2150.
Best amp i heard period.
I owned amps from Pass, Classé, GamuT, Conrad Johnson and heard a lot of amps (i work in the hifi... and don't sell Tact unfortunately), the stock 2150 is already great but once modified (diodes, BG, high quality regulators) no amp can touch him below 10K$.

If you want a polite sound get a class A amp. If your liking is more towards "real" get the ICE powered H2O Signature.