ICE Amps for classical music?

Dob - AFAIK none of Icepower modules can drive below 2ohm and none of the H2O product either. They might be able to drive 1 ohm but are specified at 2ohm min. At 2 ohm min strongest Icepower module 1000ASP used in highly regarded Bel Canto REF1000 mkII can drive 2ohm with 40A peak delivering 3200W. In addition supply voltage doesn't drop since it is regulated (SMPS).

In reality, if you think how linear power supply operates - it is SMPS operating at 120Hz that requires huge transformer because of low frequency. Toroidal transformer at 100kHz that carries the same power can be 10x smaller.
SMPS high frequency, is easy to filter while 120Hz is not. For this reason Jeff Rowland uses SMPS in Capri preamp.

Hello Muralman1,

What model of Henry Ho amplifiers you use to drive your 1 Ohm speakers?

Caps provide store energy only. Incidently, intial Spectron Musician III also has two or four huge caps. In next geberation they changed it to 100 smaller caps (10-12 times reducing ESR) and difference in sound was more then drramatic.

Ar any rate, I am interested if your amp has switching power supplies or it was based on traditional transformers. Also, switching power supplies are not digital. First Spectron class D amplifier in 1974 also was based on switching power supplies but they do notn use it in their audiophile products.

I visited Mr. Ho web site and he has there two type of power supplies driving the ICE output stage:

#1 M500 - Power Supply: Integrated Switching Mode; $3,000.00 USD a pair

#2 M250 - Power Supply: Integrated Switching Mode; $2.500.00 USD a pair

#3 S250 - Power Supply: Traditional Toroidal Transformer; $3,200.00 USD ea.

#4 M250SA - Power Supply: Traditional Toroidal Transformer;$6,000.00 USD a pair.

#5 S100 - Power Supply: Traditional Toroidal Transformer; $6,000.00 USD ea.

Thank you,

Simon
I would bet a treasure that it was the pair of MA250SA...

Kijanki, please, you should not make those statements unless you have witnessed the actual application of the 500A module loaded working on 1 ohm. Here is another eye wakener, the H2O can not only do 1 ohm, it is stable on a third of an ohm as well. That has been proven multiple times. H Ho has the 1000ASP module, and since, like me, he has the 1 ohm Scintilla, he knows which is better.

Henry has a 1 ohm scinnie , so i can see the amplifier being tailored for such a load .

Now my interest is peaked and definitely will have a listen to one. I know Bel canto has advised not to drive a 1 ohm load with there's.

Muralman1 - I'm not sure what statements you're talking about. Please read again second sentence of my post.

Again - Icepower modules are not rated for 1ohm (min load 2 ohm) nor H2O amps are. If they work fine - all the better. I just stated specifications.