High end Class D amps?

Moto Guzzi's feel very similar to the BMW horizontal flat twin vibrations, both are no-where near as smooth as he V Twin Ducati.
 

For along time the 916 was my dream bike. Then a friend let me ride it and I never wanted to ride one again. It vibrated more than my Guzzi, the seat was hot and I nearly threw the thing on the ground trying to turn into an entrance ramp at slow speed; I was unprepared for its limited turn radius.


Actually you can get the Laverdas to be quite smooth (but not as smooth as a 90 degree or 180 degree twin). The trick on the triples is a computer controlled timing advance. It also helps to weight the ends of the handlebars. With the twins they are actually well-behaved on account of the pistons being 180 degrees apart when firing, and a well-weighted flywheel. Despite all that, they hold up extremely well.

Michael Fremer says it drives the Wilson’s very well? I have not read the review yet. OH NO, this cannot be. George will never talk to us again.

You believe Fremer on any PS audio product? good luck with that

I see a slight problem in Michael Fremer’s review of the PSA amps...he and Paul McGowan happen to be very good friends...so..for reality’s sake...I would take that review with a grain of salt.

You can say that again.

JA bench tests found this PS Audio amp’s distortion rises very quickly into 2ohms, about 3 x higher even only at 1/3rd it’s output power, would be nice to see what the distortion would be then with the Alexia’s 0.9ohm!!!

And as for wattage power tests into 8 and 4ohms yes it does well, just like any Class-D, but JA didn’t post up any test or mention into 2ohms, and you can only guess why, as he nearly always does with linear amps.

JA
Like he did with the smaller A-Class Gryphon Essence poweramp
8ohms 53w (all in Class-A)
4ohms 101w (said to be all Class-A as well)
2ohms 182w

Cheers George

Also the linear Soulution Amp
135W into 8 ohms
260W into 4 ohms 
490W into 2 ohms 

Not many Class-D's have I seen JA do 2ohm loading wattage figures on, in fact can't remember any.

Cheers George

aolmrd

I bought a pixie dust sprinkled EVS 1200 dual mono from tweakaudio roughly a year ago. Prior to buying it I had the PS Audio M700s which I liked quite a bit, but my quite large room needs even more umph which the EVS1200 delivered in spades- no tube input needed, or wanted. Best was it was a mere $2300 (~ the same price as the M700s). Since PS Audio went direct, IMO, they should reduce their prices to reflect the 40% dealer markup, so while Micky F was very impressed, they are not the bargain they should be, and I doubt they would rival tweakaudios version

Class D done right can sound very good.. I had the Bel Canto Ref 600M based on the hypex 400 modules.  cool running, silent and very dynamic. I replaced my BAT VK75SE with them..
I had them paired with some Focal 1028’s and found them to be too bright on top,  Just couldn’t listen for too long without turning it down or fatigue, Not a great match for my tastes.. 
I moved to a Pass Class A amp and now I have more heat, mass and cost.. but Now I have music I can listen to for hours on end.. 
Well worth the trade off I’m afraid..