Do ClassDAudio Amps Have Proper Decay Of Notes?

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 

Class D is wonderful for some people it will never be as good as a great class A or AB amp.

DanMan...I don`t know what the difference is, sorry.
As a back story...
I had a very nice Rogue tube amp that sounded really nice but I needed more power for my speakers so I got the SDS 470 as a stop-gap till I could find a tube amp/amps that would do the job.

I was so impressed from the very start with the Class D Audio that I`ve put a hold on the amp end and am looking in other areas to improve on.
I know I didn`t answer your question, just trying to help in some way :)

Steve