GaN-based Class D power amps


The use of GaN-based power transistor tech is now emerging for Class D audio power amplifiers. Seems appropriate to devote a forum thread to this topic. At least 3 companies have commercial class D amps in their books:

Merrill Audio, with their model Element 118 ($36k per monoblock, 400 W into 8 ohms, 800W into 4 ohms), Element 116 ($22k per monoblock, 300 W into 8 ohms, 600W into 4 ohms) and Element 114 (coming soon). 
https://merrillaudio.net

Review of Element 118 at this link:
http://www.enjoythemusic.com/superioraudio/equipment/1018/Merrill_Audio_Element_118_Monoblock_Amplif...

ADG Productions, with their Vivace Class D amp ($15k per monoblock pair, 100W into 4 ohms). (The designer emailed me indicating he has another product in the pipeline.)
http://agdproduction.com
Review of the Vivace Class D moniblocks at this link (warning: link might not work (1/11/2019)):
https://positive-feedback.com/reviews/hardware-reviews/agd-production-vivace-gantube-monoblock-ampli...

Technics SE-R1 Class D stereo amp ($17k per stereo amp, 150WPC into 8 ohms, 300WPC into 4 ohms) 
https://www.technics.com/us/products/r1/se-r1.html
Preliminary review of the Technics SE-R1 at this link:
https://www.stereophile.com/content/technics-se-r1-digital-amplifier
Technics also has a lower priced GaN-based class D integrated amp in their catalog:
https://www.technics.com/us/products/grand-class/stereo-integrated-amplifier-su-g700.html

Anyone listened to or own any of these amps?


128x128Ag insider logo xs@2xcelander
Not saying the VAs aren't good, or better, BUT...

The V A amps aren't XLR, using XLR jumpers on RCA inputs/outputs are a joke, no way to make a fair and honest evaluation

so how can one honestly compare, and did he/she have an agenda 
Ric, Ralph, anybody: can you explain the difference between Ice and Ice Edge modules?
ricevs... On any given day..any piece of adquently engineered new kit can be the ’cream of the crop.."for the moment"..and then... BAM!!!... something else comes along that wows the listener/reviewer.. for awhile..long term or not..The question is..how long will it be the darling of the so called golden eared reviewer? Well..until the next greatest/latest thing comes down the pike.

Generally speaking, if a piece of kit sounded great a few years ago... it most certainly still sounds great today..especially amplifiers..There really has been no earth shattering amp design that has changed the course of history for the audiophile community at large..The supposedly archaic tube amp of yesteryear still reigns supreme to a hell of a lot of enthusiasts yet still. You know what I mean? One’s own personal taste is what matters most..not somebody else’s...especially in audio circles.

Reviewers need to keep ’upping the ante’ in order to have a following,whether that reviewer has an agenda [which most do!] or not. Reviewers can only give a baseline as to what that individual may think for the moment.. when having something new in house to listen to.. and then wax poetic about it.. as if the audio gods just landed in their rooms and gave permission to make fools of themselves.

My question to you was... did YOU make a comparative listening test with the Veritas amps in your own system with your own ears... You answered that question loud and clear..... YOU "did not" and rely on other peoples ears for any sonic determination.. and not your own. Good luck with your new amp.
1)  The Man Said,
 "Not to mention Class D is most efficient and runs cooler so you save on power bills" Can you save on your heating bill with Class A? (just kidding)
2) I wonder if some of these effete HEA manufacturers use price as as way to convey quality rather than cost of production. I can't imagine some manufacturers pricing a monoblock  at $1999 even if they could easily make a profit. It would put them among the unwashed lower classes and damage their image. But maybe I'm getting too cynical. 
3) I used to buy radiology equipment for hospitals. Anything I spent $35,000 for would have way more components, more expensive components and involve way more labor and R&D than could possibly be put into any amp. They are sold to a very limited market and have to be FDA approved, which costs many times more than RFI certification. But maybe I'm too cynical.
4th and most relevant) I am a big fan of Class D and fervently hope that I will have the opportunity to hear a GaN based Class D product that I can afford soon. 
Ric, Ralph, anybody: can you explain the difference between Ice and Ice Edge modules?
The ICE Edge is their latest stuff- integrated high and low side drive circuits, optimized dead time, higher speed, higher voltages (for more power) and so on.