Do ClassDAudio Amps Have Proper Decay Of Notes?

I am using the Hypex NCore NC400 Bridged Mono Block class D Power Amplifiers (4 NC400 amplifiers, 2 on each side) purchased from James Romeyn Music and Audio, LLC (James).  He was very helpful answering my many questions and I suggest you contact him for more information on his assembled Hypex amplifiers (he offers 3 class D models).  The cost for the bridged unit is $2,980 (plus shipping) and his contact # is 435.213.3953.  

This is my first class D power amplifier and, based on my results, sounds terrific. Of course, everyone has a different opinion on this subject. You never know “how it really sounds”, until you listen in your room and system.

In summary, I am thrilled with how good my system sounds. I am hearing details, imaging and bass that I have not heard before. My system now offers breathtaking detail, transparency, lack of noise, and excellent dynamics and sounds much better than my Luxman L-590ax Class A integrated amplifier.  My DAC is going direct (balanced XLR connection) into my power amplifier with no pre-amplifier.   This change feels like another layer of sound is presented WITHOUT THE pre-amplifier in the system.  The volume is controlled by the volume control on my DAC.

 

Class D typically has very high damping factor.  That might play into things like like how decay of notes sound in some cases compared say to a tube amp.   

I love my Class D amps.  They sound fantastic with every speaker I've run by them.  They deliver music effortlessly and never "break a sweat".   That matters.  

In my experience power amps are significantly less important to the sound than speakers, preamps and cartridges,

that is sooooo wrong!! The power amp-speaker interface is perhaps the most important aspect in the music signal chain, 
Every component & every connection is important in audio if you want realistic playback. Trivializing the power amp-speaker connection will lead to only trouble for you. Neglect it at your peril.....

I have the Class D Audio SDS470C 300/600 watts per channel. I`ve never noticed a lack of decay.
As more time is put on it, it impresses me even more !

SCM, do you know what the difference between the CDA amps and the SAD amps are? When I bought mine, Tom recommended I use the CDA 254, so that's what I have. Just wondering in which way the sound differentiates between them.

By the way, I'm very happy with my CDA's, but my curiosity drove me to ask the question.

Thanks,
Dan