Class D


Been thinking of trying a D amp to reduce clutter. Most that I see are not rated at 2 ohms.  My PSB Stratus gold's will drop to 3 ohms or lower at some frequencies. So my question is will these types of amps handle this impedance ?
Thanks in advance. Chris
zappas
zappas OP


Ask yourself why all the Ncore data sheets have the 2 ohm power ratings in the data sheet right near the top. Some people never move forward and have to bring up a one time comparison of a $40,000 dollar amplifier against $10,000 amplifier that no one can verify.  Well not really $10K. They were clones of the Bel Canto, so unknown pedigree, and unknown performance. Now we are talking $40,000 something that has likely never seen a measurement that confirmed performance.

One day George will discover that EPDR is not the same as current delivery. That day is not today.
I think I may understand Equivalent Peak Dissipation Resistance which I had never heard until recently in one of the class d amplifier threads. Audio2design and Jaytor have nicely explained that.  It is very informative and interesting. Thanks
Like I said  zappas OP don't trust anything the manufacturers or shillers say, independent test figures are much closer to the truth, they tell the real story.


Cheers George 
One D amp that won't "reduce clutter", as OP says, but can easily handle a 1-ohm Apogee Scintilla is the H2O Audio S250 Signature.
Uses older Ice modules, 250W/8-ohm, doubling down, a really healthy power supply, dual mono in one chassis with two toroids, 70-lbs.

Oh...it's also rare on the used market so don't hold your breath. 
I'm sure there's some special circuitry somewhere but it's pretty basic otherwise. It's all in the design and execution. Point is, class D can properly drive 1-ohm, not just be stable there, if so designed. I don't know why more manufacturers don't make the effort.