What Class D amps will drive a 2 ohm load

The whole basis of your reasoning is that if the power does not double from 8 ohms to 4 ohms, and then again from 4 to 2, that it couldn't possible work right. There is no way you can make that determination without knowing exactly why a specific power limitation may exist at 2 ohms, and you definitely cannot use whatever logic you may think applies to a linear amplifier to a Class-D.

Whatever you say or how you screw it, does not make anything right!

End of story!

I don't care to invest the time to technically learn and decide whether atdavid or georghifi is correct, but I do want to know which one is correct.

Is there a third, hopefully independent party that can opine to this?

Thanks

     It's apparent that georgehifi has appointed himself the official judge on this thread who administers the amp typology scales of justice with a big, heavy thumb on a particular scale and applies amp typology justice and fairness in the manner of a 15th century sadistic Russian czar.


georgehifi:
"Yes, they may be stable that’s only half of the equation, so is a $199 30w NAD 3020 integrated from the 80’s, it’s also "stable" at 2ohm loading, and also on the OP’s Thiel CS5’s, won’t make much music though."

     C'mon George, are you actually implying that a pair of  the 1 ohm stable, 800 watt and highly praised Merrill Veritas mono-blocks won't make much music on the OP's Thiel CS5s?  Here's a link to just one of a plethora of highly positive reviews on the Veritas and their music making abilities:

 ttps://www.tonepublications.com/review/merrill-audio-veritas-power-amp-mono-blocks/

Tim

jetter,
I have no skin in the game for Class-D, AB, or A.  I am just the guy that actually understands what EPDR  is, and why it does not apply to Class-D amps, and why it is particularly harsh to BJT amps, the type that a certain person pushes as the holy grail for low impedance, citing EPDR.  I and Noble100 have given examples of amplifiers proven to work, and work well at 2 ohms.

Here is an independent post from DIYAudio. That "max-current-limit", something a Class-D amplifier can do on a cycle by cycle basis, explains why you can design a Class-D amp with a derated 2 ohm output power without impacting sound quality.  The statement about SOA (safe operating area) goes back to the EPDR, or why it is not applicable to Class-D.
You will find similar posts on the Internet from people with a good understanding of the technology.

There is another thing that comes into play:
Because of the working principle there is no need for SOA protection like it is used with linear amps. Max-current limit is absolutely sufficient. This gives these amps the ability to drive quite "cruel" loads with ease. The bass reproduction of some class-d amps is really stunning. Not that they are doing megabass compared to linear ones but they reproduce bass in a very clean and effortless way.

Regards

Charles

https://www.diyaudio.com/forums/class-d/43426-class-output-impedance.html