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All is well here, I still have a job which is a blessing these days. Contact me off line, I want to here more about this IEEE invite. d.b.

Take this you heretic! http://www.youtube.com/watch?v=CSe38dzJYkY

You kneedling novice naysayer, Kosher Chicken Fat will give you the "enlightened" performance you require as a discerning audiophile. Kosher Chicken fat will negate all ground loops and inductive pickup, it harmonize any output to any input, and send all that fatiguing upper order distortion to...

Well I guess the word has spread rather slowly in some quarters; I stopped manufacturing 3 1/2 years ago. http://www.redesignsaudio.com/service.html d.b.

Considering that most of the reviews you have linked are from publications that reviewed flea watt SET's and Non Oversampling DAC's favorably, why should anyone take their reviews seriously? Do you think that might tell you something about how most of this industry works? The great thing...

Thank you Dennis; If you feel up to the task you may wish to try testing impulse response from 500 Hz to 2 KHz at different power levels and compare that to a reasonably well designed linear amp. I would expect to see major differences between the two in time domain. d.b.

Quote from D Sonic. "If you look at page 6 of the data sheet referenced in the article you will note in the first row of the Audio Specifications (Po = power out) that by class D standards the 1000ASP does indeed meet its requirements for the 10HZ to 20KHZ bandwidth at 525W/8ohm and...

As some of us have observed; the FCC is far more interested in wardrobe malfunctions. d.b.

For additional fun and games Vlad, Google the following: Slewing Induced Distortion & Phase Deviations and Transient/Step Response in Amplifiers. That's for starters on non linear behavior in Amplifers as it pertains to this subject. BTW: This is all very old and well known stuff in the EE...

More Links: http://www.rothenberg.org/Phase/index.htm http://www.dsprelated.com/dspbooks/filters/Phase_Distortion_Passband_Edges.html http://mue.music.miami.edu/thesis/dkoya/chapter_2/chapter_2.htm A long time ago on a planet far far away people decided that electronics should "get...

I'm going to be blunt and directly to the point here. I don't mean to be rude so don't take it that way. A simple visual inspection between a ICE amp directly from B&O and the ICE amp from whoever will tell you 99% of what you need to know. The rest has been outlined in a previous post. The...

With linear amplifiers it really wasn't necessary because the phase linearity essentially folowed the frequency response. Flat frequency response gave you a linear non varying phase response. As to your earlier post on measurements I see no reason to test every ICE amp that comes to market...

To answer the above questions I would recommend that you pay attention to the data sheets linked to theis article. Please pay close attention to the frequency response vs. phase graphs. I have read this article a couple of times and I find myself still LMAO. d.b.

I note that the same or similar arguments you have used in your post are the same arguements that were used some 30 years ago. Way back in the 1970's and into the 1980's people in audio thought the same thing. However, this was corrected when people "discovered" slewing induced distortion and...

Here's the link for the data sheet for one of the ICE amps: http://www.icepower.bang-olufsen.com/files/solutions/icepower1000aspdata.pdf You should take a close look at the frequency response vs. phase plot and the frequency response vs. power response. Then compare these to any reasonably...

There are still a number of folks that have kits available. It's a great way to start learning if you so desire. d.b.

To ICE or Not to ICE You may also wish to read this article from the audioholics archives. http://www.audioholics.com/education/amplifier-technology/the-high-instantaneous-current-spec d.b.

And one will learn absolutely nothing on how things work or do not work as the case may be. The DIY process is as much about learning, as it is about the satisfaction of completing a project. d.b.

Bandwidth Limiting I would like to add a bit more fuel to this fire. Back in the 70's and 80's linear amps were doing some very similar things as the ICE power module unit in question. What was found was this caused slew rate limitations giving what is still known as slewing induced...