Class D amps that are superior to all or most?

Ricevs,
Have you heard the Legacy D line?  Interested in trying one of the 5 Channel ones for all the 5.1 and 1970's Quad titles I have. Probably about the same price as the lower end AGD model...7K-ish

Ric has taken the Ice boards and amp’s performance to the
next level.

Can you prove that objectively? No. It's your subjective opinion.

we get better sound

No, you get a different sound. Another subjective opinion parading as fact.

Sure people have been modding equipment forever, I never said there was anything wrong with modding. What I take issue with are these claims by these snake oil salesman that they have somehow "improved" the products they hack up. They haven't improved the performance, they have simply changed the sound. "Better sound", "performance up a level", these are all subjective and in the minds of the listener- not everyone who hears their changes would agree the sound is "better". Why is it some people prefer Purifi to tubes and others tubes to Purifi? Peoples subjective tastes differ.

that is what the new model is.....just a tweaked out older jobbie.

You really are clueless if you think all Bruno did with the Purifi design is "tweak" a few parts.

As Ric says,  the caps will still last 15 years or so! No worries. The caps are cheap to replace folks.

And all the while the sound degrades as you boil away the electrolyte.

IMO, as a design engineer, replacing caps is not a mod. While it may alter and in some systems improve the sonics, it is at best transitory.

Electrolytic capacitors begin degrading from the moment they are made. In today's marketplace, the cap you buy today may or may not be identical to the one you bought last year, even if it is from the same manufacturer and the same µF & V.

Sure.  Good luck with that audio view with your system.  Carry on. 

I have a NuPrime ST-10 Class D. It drives the woofers only. I tweaked it a bit by venting the case, adding a tiny fan and removing the balanced input. Before the venting, the amp became a bit nasty once the case hit 40°C. Not no more.

I redesigned my Tubes4HiFi M-125s [mid-range only]. In the PSU, I replaced the underrated [suspect] Nichicon 75µF with a bank of 6  genuine UCC 330µF and a soft start. On the driver, under voltage 400V with 550V.

The first is a mod, the second a correction.

I've been actually modding HiFi gear since the 60's. Replacing caps ain't it.

AND there is no SONIC difference between leaving SS equipment on all the time and powering it on and letting it warm for ≈20 minutes EXCEPT THE 'LYTIC CAPS LAST A WHOLE LOT LONGER! And thus the sonics persist.

Other than Class A, SS gear is always sonically vacillating as the thermal operation point changes with the program.