Do ClassDAudio Amps Have Proper Decay Of Notes?

Class D has evolved into many different iterations. Since my first switching amplifier, the PS Audio HCA-2, I've owned four other brands and auditioned in house six others. During this time I had an Ayre V-1xe, MFA D75, and Carver VTA 180s on hand.

Nothing personal but I guess I'm just skeptical when I read about generalizations regarding switching amplifiers. While I've seen graphs that dramatize a digital waveform I honestly can't hear anything that would suggest a stair stepped waveform or "digital noise" from any of the switching amplifiers I've listened to. Early on I would admit to there being a difference in presentation but I've been fooled by the NuForce SE's and the nCores in short term listening in my own system.  The only commonality that I've found in most class D designs is their sensitivity to the quality of AC power and poor synergy with silver cabling. If memory serves me the Hypex nCore kits were $1300 direct.

The nCores are in my studio system driving a pair of Avalon Acoustics Monitors. The combination is stunningly transparent which is amazing for monitoring my recording but not exactly ideal for casual listening. Over the long term I prefer my VTA 180s driving the Eidolons in the main system, but thats me.      

["Just so we are clear here, class D is not digital. Its an analog process."]

Absolutly.

I believe there was one self described "Digital" amplifier but I can't recall the brand. I didn't refer to any class D amplifier as digital.  Some reviewers have used examples of stepped digital waveforms to describe or imply what the typical, or some, switching amplifiers using pules width modulators are outputting. 

My QSC PLX 2400 Bass rig amplifier has a switching power supply that makes a hell of a mechanical noise but it can't be heard in the output. I may be getting too old but unless we're talking about substantial difference in the amplifiers basic presentation I have yet to hear any class D amplifier produce switching noise.