The Truth about Modern Class D


All my amps right now are Class D. ICEpower in the living room, and NAD D 3020 in the bedroom.

I’ve had several audiophiles come to my home and not one has ever said "Oh, that sounds like Class D."

Having said this, if I could afford them AND had the room, I’d be tempted to switch for a pair of Ayre monoblocks or Conrad Johnson Premiere 12s and very little else.

I’m not religious about Class D. They sound great for me, low power, easy to hide, but if a lot of cash and the need to upgrade ever hits me, I could be persuaded.

The point: Good modern Class D amps just sound like really good amplifiers, with the usual speaker/source matching issues.

You don’t have to go that route, but it’s time we shrugged off the myths and descriptions of Class D that come right out of the 1980’s.
erik_squires
merrillaudio said... "The ELEMENT 116 will be announced shortly. It will be priced at $22k. This is mean to be the replacement of the VERITAS Monoblocks, although as you heard, a very significant upgrade."

Hi Merrill. The new amps sound like they will be awesome...congratulations!!! Now... if I can only figure out where to come up with $22 K ..ouch ! Me thinks my Veritas monos will have to do. 8)
“The TDAI-2170 is 100% digital, without sound-deteriorating digital-to-analog conversions. The digital signal drives the speakers directly, with no translation and no middleman.”

It takes a digital signal and amplifies it without a conventional dac.  The signal remains completely digital right to very point where the signal is fed to the outputs....only at this point does the signal convert to analog. This unit is not a Class D amp.

@grannyring
While this is the hype, the fact remains that all class D amplifiers employ an analog process. I think there is a lot of confusion about what is digital and what is switching, and also what must be analog. Here's a link that might help:
https://www.hypex.nl/img/upload/doc/an_wp/WP_All_amps_are_analogue.pdf

I'm going to go on record that any amp that employs deadtime to work is an amp that will become obsolete
By definition, zero deadtime means that the devices must be both on and off at the same time, a physical impossibility given any reasonable technology.

Zero dead time requires a series of perfect devices that remain invariant over temperature and time.

A Class D amp with Zero dead time is likely an amp with a short lifespan.

Hello @d2girls, your question does not have an absolute answer.... A lot has to do with bersonal preferences, because Merrill, Rowland, and Bel Canto all make some wonderful devices.


Starting with Merrill... The Veritas monos were fabulous in their hayday.... Today they would still be worth a serios look... Although all things point to the new Merrill Oganessom series of Element 114, 116, and 118 being superior... Yep the Element 118 prototype that I had the fortune of having in my system for one week, while not well broken in and still evolving rapidly, was musically impressive to say the least!



Rowland has 5 class D amps.... two I know well and I adore... THe M925 monos that I own, and the Continuum S2 integrated.... The following I know by their excellent reputation only.... the Daemon integrated just below $39K, the M535 bridgeable just below $6K, and the little entry level M125 at some $2.5K.


Bel Canto has a number of amps.... THe Black series is their top of the line, while the Ref600 is more entry level.


All the above are great products, I doubt that you’d go wrong with any of them.... And I have not heard of any reliability complaints about their class D output circuits.... But which brand or model might be Best is pretty impossible to say.... It depends on your budget for one thing, but most of all on your sound concept.... Assume that none of them are strident, all of them are pretty linear, all of them let you hear subtle harmonics, all of them yield deep and tuneful bass without sloppiness.... And yet, inevitably you will develop a personal preference for a brand, or for a particular model, or.... You might dislike the whole lot instead *Grins!*


Why? ... "BECAUSE!"


G.