What Class D amps will drive a 2 ohm load


Just asking.

I see specs into 4 ohms but nothing into difficult speaker loads (like Thiel CS5's).

Thanks for listening, 

Dsper


dsper
Nothings been put to rest, let’s see the independant test or even his own, that show the rms wattage doubling just before clipping (same distortion) with all three 8, 4, and 2ohm loads, then I’ll eat my words, and congratulate you on doing something that other Class-D’s can’t. I’ve asked the same from Merrill twice now and got no answer.

And btw, I’ve never claimed the new GaN Technoglogy could drive these speakers properly and double at all 8 to 4 to 2ohms loads either, they just sound better than the old technology, but I wouldn’t recommend them here either.
Its put to rest everywhere but (by your admission above) in your own mind. Although we just got news this week that the USPTO is granting our class D patent with all 20 claims supported, that isn't the same as saying we're ready with a production product that is going to independent review. The power supplies that we are using for testing won't support the current of 2 ohms at full power even though the circuit boards we designed will. But the amp behaves as a pretty good voltage source so as long as you stay within the limits of the power supplies we're using, doubling power into 2 ohms is no worries.

I am well aware you didn't make that claim about GaNFETs but if you apply United States 5th grade reading comprehension skills (which these days isn't saying much) you will see that I suggested that this was something you might not have been aware of and by your admission above that surmise was correct. Again, what I said is that the output impedance of an GaNFET-based class D amp is so low that it will easily double its power into 2 ohms from 4 ohms- provided that the power supplies and heatsinks will allow it. These latter qualifications BTW are the same ones that limit any traditional solid state amps as well, so none of this is any surprise to anyone anywhere, except perhaps you.






Nothings been put to rest, let’s see the independant test or even his own, that show the rms wattage doubling just before clipping (same distortion) with all three 8, 4, and 2ohm loads, then I’ll eat my words, and congratulate you on doing something that other Class-D’s can’t. I’ve asked the same from Merrill twice now and got no answer.


That would be cool. But what non-Class D amps exactly are we comparing these to that have been proven to do the trick?

George sounds like you are convinced accordingly that some existing non-Class D amps are proven to do the deed so tell us which proven amps specifically you are recommending dsper consider buying?

Thanks.


tell us which proven amps specifically you are recommending dsper consider buying?

As I posted just ones that can almost double their clipping wattage from 8 to 4 to 2ohms. Even the ML2 monoblocks at only 25w into 8ohms will do it, but not at party levels, because they can double down to 200w at 1ohm.
All we have here are a few manufacturers spruiking their new or yet to be released Class-D amps without any shame, saying they "can handle" the 2ohm load, making out they can drive this speaker to it’s best in the bass. Without presenting any measured proof of their claims, that they can almost double their clipping wattage from 8 to 4 to 2ohms.
FYI. The Merrill 114 is a single chassis, stereo, power amplifier. It has been mentioned a few times here, stating the 114 amps are mono blocks. Talk about 5th grade reading levels...lol.....why can't discussions of audio stuff, hifi stuff and music listening stuff, be non confrontational ? Power cords, and fuses / fuse direction, have been the tops so far....
And still, no one commented, as likely, did not read, the two reviews I mentioned were worth reading, having to do with the Merrill 118s ), on page one of this thread.