New Classe Delta amps and stereo pre amp

If Class D. ?
no thanks

Not likely, with this kind of bandwidth
1Hz – 650kHz

and weight
102.3 lbs (46.4 kg)

and ability to increase wattage from 8ohms to 4ohms to 2ohms
Stereo
250W / 8Ω
500W / 4Ω
350W / 2Ω
Monoblocks
300W / 8Ω
600W / 4Ω
1000W / 2Ω

No Class-D could do this sort of doubling.

https://www.classeaudio.com/products/delta-stereo/

Cheers George

The amps are not class D. The preamp seems to be a significant update of the CP-800; by which I mean, similar features + phono. The MSRP if $12,000 is twice as much.

These amps are made in Japan by the same company that owns Marantz. They claim the new mono amps run up to 35W in pure Class A whereas the stereo delivers around 25W in Class A. Looking at the design it is very clear it is indeed a class AB project with proper class A bias, particularly on the fan-based cooling system it employs (!). I am unsure about the sonic effects of that solution on the overall performance, as critical as overheating is for this kind of topology.
The preamp features an analog section (volume control, RIAA inputs etc) and a separate digital section with dsp settings, which is very interesting for someone like me figuring out how to integrate HT and stereo optimally - an optional HDMI board is offered as well.

@gallus -- The DSP section of the CP-800 was OK, but not great. I own one, and I have moved it from my main system to a desktop system. In the main system, an Anthem STR Preamp at $4k (and often discounted) gives far more transparent DSP.

With any luck, the DSP of the Delta Pre is better, though it appears that some of its limitations (only 5 filters per channel, only one set of filters storable) were not addressed by Classe in the update. If you’re considering one and interested in streaming (LAN or WAN), check whether they’ve fixed the failure of the streaming input to do gapless playback. That was a major "gotcha" of the CP-800, and really indefensible in a $6000 unit. (I asked for, and received, a discount on that account.)

@mike_in_nc thank you! Well, considering the Classe is a 10k unit, I think a proper multichannel processor to be bypassed through the preamp would be a better solution. Do you recommend the Anthem so far? I considered the Bryston SP3 as well.Classe is owned by the japanese now so it is very likely they changed everything and kept only the name for marketing sake.