What Class D amps will drive a 2 ohm load

Hey OP.

Ideally, amplifiers are pure voltage sources. That is, the voltage at the speaker terminals is 100% determined by the input from your sources. Usually there's a multiplier, around 20.
So, 1 V in ---> 20V out.

But as the impedance of the amplifier rises, and the impedance of the speaker drops, this drops:
1 V in --> 18 V out.

And it can be frequency dependent, because the speaker's impedance is frequency dependent.

Take a look at the very first plot from this review:
https://www.stereophile.com/content/conrad-johnson-premier-twelve-monoblock-amplifier-measurements
and you'll see how this happens with tubes, with notoriously high impedance outputs. 

This is not the whole story though, as amplifier feedback matters, so it may be that the amps can keep up but only to a certain current limit.


That's why I was strongly encouraging you to listen. If your Class D amp is rated for 2 Ohms, go by your hearing, not spec or class. If it has an actual issue you'll hear it.

Wilson, Thiel, ML esl’s, MBL, Sonus Faber JM labs

Of these only the Thiel is really difficult to drive. We have customers with Wilson, Martin Logan and JM Labs. And we make tube amps that don't double power or even act as a voltage source. The mbls aren't that hard to drive either; just have a bump (not dip) in the upper midrange driver that can make an amp with no feedback sound bright. But the mbls are easy to drive; most of their 'inefficiency comes from the simple fact that they are omni-directional.

Of these only the Thiel is really difficult to drive.

You are in a world of denial now.

I ask you to provide a list of amps that have guts. I request this,

Sorry, if you search I've already given many examples, and you should really know if your debating this in this thread.

Cheers George

Hi George,

I’m glad you are branching out to opine on something besides Class D amplifiers, I think that shows real progress in you participating constructively with others on a broad range of topics.

In regards to your reply to me, please just imagine me rolling my eyes around and guffawing repeatedly, in a very very respectful manner.

Best,

Erik