What Class D amps will drive a 2 ohm load

golfnutz
Pretty much what I expected. Your experience is basically the same as my except I was using the IcePower 1200AS/2 modules (2.7 ohm rated) with Wilson Watt/Puppy’s. I believe you were using the 1200ASP modules (2 ohm rated). Not just the bass, but I noticed it in the midrange as well. It became very sterile to the point I couldn’t listen anymore. Stereophile also uses the word ’Anemic’

And the Wilson’s are over 92db efficient, but also have a nasty amplifier loading. Same happened to you as I posted above to the Kappa’s. And your 1200AS2 Class-D modules are said to be even better🤦‍♂️

Stereophile also uses the word ’Anemic’ to describe this behavior when an amp is under powered for a given pair of speakers - which I think is a good descriptive. I tried using subwoofers to ’fill-in’ more musicality, but it really didn’t help that much either.

This is classically what happens to "some" Class-D owners "with hard to drive speakers", that is to get a sub to give some more bass weight and to flesh out the lower/mids and mids more, but it doesn’t cure the problem fully


Cheers George

     Buy a pair of pre-owned Merrill Veritas for $5K, they're stable down to 1 ohm.  If you're unsure, just call Merrill and ask him if they'll drive the Kappa 9s. 

Tim

When you can't get a conversation past the difference between current limiting and power limiting, stability seems to be the least of our concerns.

they’re stable down to 1 ohm

As I said above, so is an 80’s NAD3020, stability is needed, but that is not the criteria for it to sound good at those types of speakers low impedance’s.It needs to be able to almost double it’s "full" rms wattage for each halving of impedance, from 8 to 4 and from 4 to 2ohms, and I asked Merrill twice, to supply that, and twice the question wasn’t answered.

just call Merrill and ask him if they’ll drive the Kappa 9s.

Ask him more so will they drive the Kappa’s to their very best, seeing they are very expensive amps. See if he’s a saint or a car-salesman.

Cheers George

'Stability' is that which prevents the amp from oscillating. Just so you know. So in the phrase:

As I said above, so is an 80’s NAD3020, stability is needed,

- the term is being misused. In fact its unclear what is meant here. Are you saying that the NAD goes into oscillation when presented with a 1 or 2 ohm load??