High end Class D amps?

I’ve noticed that they do tend to truncate the natural decay times on bass notes, which I believe is due to their very high damping factors.

For those that want to know, I believe "that experience" is more likely because many speakers have there lowest impedance in the bass and also their highest -phase angle.
Combined, these two give’s you what’s called EPDR, (Equivalent Peak Dissipation Resistance) and that can give the amp a very nasty load impedance to look at.
Good big current bi-polar amps don’t mind seeing this
.
Class-D tends to quickly drop off it’s current starting under 4ohms down to 2ohms, look at any Class-D "independently measured" spec and you will see that, they never come close to doubling wattage from 4 to 2 to 1ohm, many even go backwards, showing severe current limitations into low EPDR impedances, this is limiting bass performance and becoming like a tone control, rolling off the bass instead of staying flat to 20hz.
https://www.audiosciencereview.com/forum/index.php?threads/stereophile-has-started-calculating-epdr....

This link also on EPDR on the second page:
https://www.stereophile.com/reference/707heavy/index.html


Cheers George

Combined, these two give’s you what’s called EPDR, (Equivalent Peak Dissipation Resistance) and that can give the amp a very nasty load impedance to look at.
Good big current bi-polar amps don’t mind seeing this
.
Class-D tends to quickly drop off it’s current starting under 4ohms down to 2ohms, look at any Class-D "independently measured" spec and you will see that, they never come close to doubling wattage from 4 to 2 to 1ohm, many even go backwards, showing severe current limitations into low EPDR impedances, this is limiting bass performance and becoming like a tone control, rolling off the bass instead of staying flat to 20hz.

This statement is blatantly false. Class D amps are limited in their ability to play low impedance (and severe phase angles) in the same manner as traditional solid state, although in practice a class D amp usually has a much lower output impedance than most traditional solid state amps.


Be-it class D or traditional solid state, if the output power is dropping into lower impedances, this is entirely due to the power supply and not the topology of the amp. At anything less than full power, any class D amp made in the last 5 years will act as a nearly perfect voltage source with any conventional speaker, with loads as low as 0.5 ohms no worries (since their output impedance is likely less than 100th of that). 

This statement is blatantly false. Class D amps are limited in their ability to play low impedance (and severe phase angles) in the same manner as traditional solid state,

No it’s not, and you know it and are in denial, your just once again in "product protection mode for your yet to be released Class-D".
 Just try to get any Class-D to perform as well as an amp with bi-polar output like a big Gryphon's into a pair of Wilson Alexia’s, the Class-D will be shamed.

Well this is an excellent example of how George has no idea what he's talking about. Sheesh.

George, perhaps you could come up with some evidence of your preposterous claim?? You know what they say- photos or it didn't happen.

No you have no idea, or, as I said you are in "product protection mode" and need to say the opposite for your future release. Most probably the latter I would think.

I’ll state once again as yet NO!! Class-D (and that also goes for my choice Class-D Technics SE-R1) will perform as good into a pair of Wilson Alexia and such, with their EPDR bass loadings like a hi current Gryphon Antillion etc etc can.