What Class D amps will drive a 2 ohm load

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

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

Read what I wrote, not what you think or wish I wrote, your just as bad as the other *******.

Hey George,
Here's a start to explaining of what @atdavid is talking about

https://www.stereophile.com/reference/707heavy/index.html
You can see that because class D amp output devices are either on or off, there isn't a portion of their operation that is in the linear region. As a result you don't have high dissipation in the output device at some portion of the waveform that the amplifier is amplifying.

Based on your responses to atdavid so far it appears that you didn't at least use Google to help you out on this one. Here's a tip from from a well-known Greek individual known as Aristophanes:Youth ages, immaturity is outgrown, ignorance can be educated, and drunkenness sobered, but stupid lasts forever.
So whats it going to be? Please try and follow along instead of promoting fake news. Google is your friend- before going off on your rabbit hole theories, just try and see if you can find out about it first.

Only this and also being stable will indicate what’s going with an amp, into serious low impedance’s as the OP’s and many other hi-end speakers have.

I noticed this comment- what do you mean by being stable? 'Stability' is generally used in the context of a circuit's resistance to oscillation. Somehow I don't think that's what you meant, but just for the record all of our amps are stable into into any load impedance included a dead short. IOW you can't set them into oscillation regardless of the load condition. But you meant something else didn't you? Again Google is your friend:https://www.google.com/search?client=ubuntu&channel=fs&q=amplifier+stability&ie=utf-8&am...As you can see, stability has to do with oscillation, not anything else.

Hi Noble100,

I have looked at Merrill Veritas amps but am not quite ready to part with my CJ preamp🤔.

Thanks for listening,

Dsper

Hi atmasphere,

I have been thinking about what you wrote earlier in this thread:
"...all amplifiers regardless of technology have higher distortion into 2 ohms which is audible as increased brightness and harshness. You can see this in the specs (if 2 ohms distortion is even specified, but you can also see it in the 4 ohm spec as opposed to 8). Further complicating matters is the critical nature of the speaker cable, which must be kept very short and also must have a fairly heavy gauge. At that impedance its very easy for the cable to contribute to the overall source impedance seen by the loudspeaker!

In a nutshell, 2 ohm loudspeakers are impractical and the ability to drive a load like that is over-rated..."

So...a couple of layman's questions:

1. Does this mean that differences between interconnects would be more discernible in a system that did not need to handle a 2 ohm load or is it that one would simply hear a different version of "brightness and harshness" ion a less efficient system? Bear in mind that I have never critically listened to a high efficiency system and probably do not understand transparency in the same way that you might.

2. What is your opinion about ten or twelve gauge stranded copper wire as a speaker cable for Thiel CS5's? Is it even audible for ten foot run compared to fourteen or sixteen gauge?

Excuse me for hijacking my thread.

Thanks for listening,

Dsper