Time to buy a class D amp?

Nodari, Might I share my experience with you?
I run a PS Audio S300 and I have tried various preamps with it, including the matching Gain Cell Preamp/DAC. I got very different outcomes in terms of the nature of the sound output from my speakers.

--I tried a good passive preamp....very dry sound, lacking in timbral fullness and color.
--The Gain Cell DAC/Preamp created a smooth, rounded dulled sound, somewhat lacking in dynamic interest. I was surprised.
--When I placed a tube preamp in front, the sound became, to my ears, spectacular. I was surprised how much the sound varied with these preamps. My final outcome is brilliant and not at all dry or bright. Great dynamics, timbral richness, clarity, resolution. Very happy. I suggest you work with that amp a bit more.

I recently built a second system and after much reading and research bought D-Sonics M3A-1500 mono blocks.  I ran them for about 300 hours using a SS Primare pre I had and driving a new pair of Maggie 3.7i's.  The amps and Maggies both require significant run in time.  I was very impressed with SQ....huge open soundstage....bass took some time to arrive but it is now present and impressive.  HF still needs to open up a bit more but getting there.  With burn in 90% there I swapped out the Primare with a McIntosh C2300 tube pre amp...at first pretty disappointing and a bit lifeless but let it run in for 24 hours and boy am I glad I waited.  Very impressive.  Huge open, layered and deep soundstage.  Not as highly resolving or detailed and focused as my reference rig, but at 1/5th the cost I'm totally happy and I'm still tweaking the speaker placement.  These class D amps are terrific.  Dead quiet, wonderfully balanced top to bottom....nothing close to "bright".  Huge open soundstage with great sonic images.  Crazy power.  Very musical.  Someone above noted that on great recordings SQ is wonderful and even poor recordings sound great.  I found that to be true.  Hard to believe at $2,750. for the pair.  

Hello ptrck887,

Yes, the D-Sonic are excellent examples of class D amps that provide hi-end sound at bargain prices. Of course, there are even better class D amps available, such as Merrill Audio’s new Element 114 stereo amp that uses the new extremely fast switching Gallium Nitride transistors, but it’s priced at $15,000. Here’s a review:
https://parttimeaudiophile.com/2019/05/03/merrill-audio-introduces-the-114-new-gallium-nitride-amplifier/

But it better perform better when it costs over $12,000 more than your D-Sonic M3A-1500 mono blocks, which are their latest top of the line mono block amp model and utilize the latest very high quality power modules from Pascal. I use a pair of the slightly older, previous generation D-Sonic M3-600-M mono blocks, that were their amp model just below the M3-1500-M model, with Magnepan 2.7QR speakers and they’re the best amps I’ve ever used with them.
I’m glad you mentioned how "dead quiet your class D amps are because this quietness, along with a very accurate, detailed and neutral presentation, are the most obvious qualities I’ve noticed in all the good quality class D amps I own and have listened to.
The only difference I noticed between your description of your experiences utilizing class D and my own concerns performance on poor recordings. I find it’s become much easier to identify the quality level of recordings as well as upstream changes in equipment and cabling when using good quality class D amps compared to the good quality class AB amps (Adcom, McCormack and Aragon) I used previously.

Enjoy,
Tim

I used to have the pleasure of owning a McIntosh MC275.  That was when I used to sell audio.  At that time I also got to hear some rare Luxman tube amps...  And,  a friend's refurbished Dynaco  ST70.
Yes...  tubes have their benefits.   But, I no longer miss them.  I now own a NuPrime ST10. Modded with the TDSS modding.  I do not miss tubes anymore.  I also lived with a PS Audio Stellar 300 for a season. The Nuprime in certain ways is better at doing what tubes are known for.  Just make sure you have the right cables for your system.   

You know what?  I have had the best results with Class D.
I have had a pair of Anthem M1 mono blocks which run at 2000 watts per channel each when the input mains are at 240 V, which I run.  These amps absolutely blow away the Parasound Halo amp I had been running prior; that is the Class A/ AB amp which everyone says is so 'warm', touchy feely.... etc.  No contest; not even close.

The M1's are far more dynamic, cleaner, lower noise floor, far more open on the upper end and the low end is what people seek.   Couple the M1's with a Whest phono stage on the input side for vinyl and just sit back and relax.