Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other???

I use Furman with LiFT and SMP to reduce noise and protect from surges.

Eric’s report of very long warm up time for ICEpower amps is similar to mine....

Glad to hear I am not alone.

Although with my old ROland M312 I started to hear better sound after one hour or so....

Ahhh! This reminds me of a JR Class D amp I heard years ago, cold. It was painful to listen to. It was only many years later that I went with all Class D and didn’t put the two together. Thanks!

E

I'd like to answer George (above):

Amps are adjusted and calibrated at the factory for peak performance after a short 1/2-1hr warm when they've reached operating temperature, even tubes, to say they sound better after hours and hours is a furphy.

With another quote of his from another thread:

Give it up be happy with yours, that you say you can't hear any problems with it. And let those that can, and have been down that path go the way they want.

Best,
E

I had a Parasound Zone Master Class D amp on loan to give an evaluation of.  It uses the ICE Power modules and in that particular case, it did sound better after a long warm up period or as Parasound told me at least a 200 hour break in period.  And although it did sound better, to me it still had a high frequency range harshness which I didn't like.  I removed it from service and put the A51 back in which of course is the Class A/AB amp and it was more pleasing to me.  The zone master did have a noticeable boost in low/mid range and it was a 600 watt per channel vs. 400 watt as in the A51 at 4 ohms.
However, when I installed my Class D Anthem M1 mono blocks, it was hands down no comparison in performance upgrade I heard immediately.  The M1's blew away everything, no harshness at all, better sound stage/imaging and monstrous immense power.  And no warm up needed, they just plain old sound fabulous.  Hey, who could ask for anything more than 2000 watts per channel? 

I had a Parasound Zone Master Class D amp on loan to give an evaluation of. It uses the ICE Power modules and in that particular case, it did sound better after a long warm up period or as Parasound told me at least a 200 hour break in period.

That's interesting. Also, here's the manufacturer, not George, telling you how long a warm up to expect. :)

Poor George, found wrong again.

I should point out it this is also interesting for me as I replaced Parasound A21s with IcePower. I could not hear a difference even knowing which was which.

Best,
E