Mono blocks-High current/low impedance...options?

I know....you're itching to get your hands on some of our stuff. Maybe when more of our loaners come back, we'll work something out.

Irony is........you would think that an amp that can do 1 kW into 4 ohms, and can work into loads as low as 2 ohms, would be great on a really difficult, power hungry load. That is what we thought.

Problem with all ICEpower modules is the frequency response tends to peak as the load impedance goes lower. While the peak is above the audio range, it still tends to tilt the HF response.

With an 8 load, I can easily understand why you are so happy with Henry's amps. The 250 doesn't peak too much, and while the 500 does a bit more, it is manageable. At 8 ohms, that is.

You only run into severe peaking problems with loads below 4 ohms. For those loads, the peaking is shifted into the audio band. This has the additional detrimental effect of causing the very top (18-20 kHz) to drop off rather quickly. Again, not too bad in the 250, so-so in the 500, but way too much with the 1000ASP. So, you end up with a peak around 16 kHz, and a sharp drop at 20 kHz with the big module. (If you look closely at their specs, they only spec the stand-alone 1000W module for 6 kHz or so.)

OK........crux of all this:

I know that there are companies selling amps using the 1000ASP modules. Some of them may even be friends of mine.

BUT:

I do not recommend them to be used with very low impedance loads. Seems like a waste, as why would anyone with anything other than an inefficent, low impedance load need an amp that puts out 1 kW?

Pssst........if you need a kilowatt for a (sub) woofer application, call me. Prototype units available at a great price.

^^ heh, and I thought i was bad at 2.5 ohms WOW.

Art, I'll take all you have said as criticism of your own ICE amps. After all, it wouldn't be kosher for a builder to impinge a competitor's products with a broad brush, would it?

The reason why your criticism falls flat is because my speakers, like I wrote, are not 8 ohm. They are a brutal .8 ohm. That is POINT eight ohm.

If you think 2 ohm speaker's highs suffer ICE damage, just think how terrible <1 ohm sounds. Well, they don't. My highs are sublime, just as are all frequencies down to 20hZ.

The "point" did not show up on my screen. I was sure you had a fairly low load.

And yes, it is indicative of ALL of them.

Mine, Henry's, Rowland's, PS Audio......you name it. You can't change the laws of physics.

Face it: you can't measure it and I can. If you like it, then fine. I really don't care. I'm just telling you what the truth is. You choice to believe it or go about impervious.

You realise there is the distinct possibility that whatever you had before had even a harder time driving that load, and had just as many, if not more, problems. But since you have absolutely no way of verifying anything, we will all have to just guess.

You certainly can not measure my amp's frequency response. You have no idea what the sound of my amps are. None. Just the fact you lumped Rowland, PS Audio, Henry's and your amps together shows you haven't a clue.

There hasn't been a listener to Henry's amps that complained of the highs on any load. There are six of us Scintilla owners using the H2O. We are all thrilled with the results. My system's experience mirrors Sajran's as he reported in his review; the same as Audiofankj's in this forum, and others found in other forums.

You know, Art, I have had enough of your crashing Henry's party. I will levy a complaint against you at this forum, if you persist. There is not another company head that behaves as you do. You appear just freaking jealous. Get over it.