What Class D amps will drive a 2 ohm load

Mcintosh MC275s in par or ser mode were "2 ohm stable"

I've said it before, there is a massive difference in sound driving a speaker that's <2ohms correctly, and saying an amp is just "2ohm stable" and another that can drive down to 2ohms by almost doubling it's wattage down to it, and "remain stable doing it".

As I said before a $100  30w 1980's Nad 3020 integrated is also "2ohm stable" but sound like s**t into a 2ohm load, but hey! "it's 2ohm stable!!!"

Cheers George 

As I said before a $100 30w 1980's Nad 3020 integrated is also "2ohm stable" but sound like s**t into a 2ohm load, but hey! "it's 2ohm stable!!!"

Cheers George

MC275 is a valve amp, no doubling..., most valve amps don't double, why? VTL, Mac, Cary Audio, Carver? why? I don't know why.     

The wattage is the same at 8,4,2 ser or par. It didn't sound like like shi?
same non ser or par. 16,8,4 either 75 wpc or 150 (186 act)  ser or par. There is no doubling. It sounds good at 2 4 6 8 10 12 16, NO DOUBLING..Run warmer, yes, run hot yes, sound bad NO...Same with the class D, they may not double at 2 ohms but they sound, SOUND better than anything close in price. It was mentioned the THD was and is higher the tougher the load, BASS is not a problem. At 20% THD in the bass most people can't tell the difference..Even good ears, 3 out of a 100, might be able to hear 20 plus %. maybe..I'm at less than 5% using phase plugs, and basket termination. and class Ds.

I use to swear I'd never use a class D. Then I listened, with my ears, not my mouth, it's stereo then, not mono. I just shut up and learned, like a good mechanic, I learned.. Their, quieter, less expensive, 15 watt idle, lighter, cooler, VERY easy to work on, opAmp swaps a breeze, black background, ZERO floor noise. 1 ohm able 2 ohm stable, and no HYPER bright, blistering sonics like some amps. 
I don't care what's being used for speakers, if a class d Nord One up can't make it sound GREAT, move on. I bought Wyred 4 Sound and Nord, ICE, and Hypex.. Both have some neat features..Expansion wise

Mac says 2 ohm stable, it means STABLE, nothing more nothing less. It works there, not badly, not anything, but stable.. Nad is not 2 ohm stable it is 2 ohm ABLE, can hit a 2 ohm load, not trip a breaker, not sustained, just able to hit 2 and not blow up, blow fuses, the normal stuff from tough loads. Car audio .5 ohm stable loads. The size of the supply conductor, as I stated before, the key to low ohm loads. TIGHT connection, Very tight, required, not hand tight, wrench tight..  Increase the ability to deliver the AMPS, to the AMPS. Stable AC supply = stable amp...

Respectfully and with regard

It didn’t sound like like shi?

There’s all degrees of s**t

Mac says 2 ohm stable, it means STABLE

So is a Nad 3020 integrated 2ohm stable, just means it won’t oscillate. Doesn’t mean it can drive that load to it’s fullest without breaking a sweat, same goes for the Mac.

Cheers George

The term 'stability' refers to the ability of a circuit to not oscillate. In the context as seen in this thread where it refers to doubling power as the load impedance is halved, it is being misused. IOW a circuit that is unstable is prone to oscillation; one that is stable won't oscillate.

Too many manufacturers here bend the truth and "con the readers" in their advertising into believing, that if they say their amps are "stable" into 2ohms, they can drive 2ohms loads easily, this is a "con" and needs to stop.

Like I said so many times now, a "stable" amp into 2ohm load means it won’t oscillate blow up and take out speaker drivers, but it does not mean it can drive the loads we are talking about here.
If it did, then as I say once again, a Nad 3020 could drive the Sony SS AR1 talked about in another thread, or Wilson Alexia’s because "it’s also stable into 2ohms", which it has no chance of doing, and there are vary degrees of this, right up to big expensive amps

Look at unbiased tests and see if an amp can do it by looking at it’s wattage doubling performance into 8ohm, 4ohm then 2ohm and remain stable doing it, then you’ll know if it’s comfortable and able to drive 2ohms and "yawning while doing it".
Many can double from 8 to 4ohms, but fall off a cliff when presented with 2ohms, these manufacturers usually only give 8 and 4ohm wattages hoping you’ll think it can do it into 2ohm as well, almost another con. 

Cheers George