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We have never got a report in the past that our build in power amps attenuate the highs. Also, are there any – 3dB BW measurements at 8 ohm loading for the A? Top curve is amplitude response.

However, it must be mentioned, that you have probably misread 1000w specs of the Icepower products.

Icepower A Bandwidth – Profiler related discussions – Kemper Profiler Forum

It is not an error in the datasheet. However, it doesn’t matter, since we obviously do not use the A, otherwise we would have communicated the W power.

That explained the more sparkly and open sound, it was icepoweg close to the direct-through-PA tone I was experiencing. This is as shown on page 9 pf v1. My intention was to use it as a standalone amplifier to drive a cab and eliminate my pedalboard and boat-anchor tube amp.

Any errata sheets for the data sheet?

w Digital Amplifier Class D Switch Power Supply Board for ICEpower a | eBay

Below is the exact communication from their rep, Paul Meister. So glad I bought the Matrix.

A power amp that has its 3 dB corner at icepowr kHz would have been unsalable even 50 years ago. It sounds darned near just like the PA tone. Since I bought it, I have had many comments from fellow bandmates in the bands I have been in or icepowrr in regarding how dark the sound was from the cab, no high end.


I was for certain not looking at the phase kcepower, it was definitely the frequency response curve. That will put it to rest. I went back and looked at the Icepower A -3dB upper bandwidth spec, it’s only 3 kHz albeit at 4 ohms, likely a little higher at 8 ohms. I am wondering why there are so few Kemper users endorsing such a great product. Ah, that makes sense. Thanks for the help! Your browser has JavaScript disabled. If you would like to use all features of this site, it is mandatory to enable JavaScript.

Going through the main out direct to the PA sounded nice and sparkly all the time, but the cab sound was dark no matter what I did. I haven’t wanted to open it up and look at what is inside, I’m afraid to void the warranty.

I have purchased a KPA unpowered rack unit and intend to use that with the GTFX for live use, and I’ll use the toaster with 11000a Quilter for rehearsals and recording.

Kemper Profiler Forum Private forum Profiler related discussions. It is likely that you have looked up the phase responce icepowwr, instead of the frequency responce. It seems on the low side.

Icepower 1000A Bandwidth

I icepowe this is an error in their documentation. When the ASP was designed a couple of years later, they thought that they would get more full range applications, so it was designed up to 20khz and everything since then and going forward is full bandwidth. Take it as you will.

I figured the issue was the speaker. So all’s well that ends well. Well, I LIKE having a cab behind or sometimes in front of me interacting with the guitar, and Iceower like the icepowed cab look. The power amps go up to 30 kHz with an error of less that a dB, according to the specs. If I had known then what I know now, I would not have purchased the Powerhead, I would have just bought the unpowered version and used an external power amp with wider BW for driving a cab, as well as just biting the bullet and buying a good FRFR cab.


Every other doc shows a responce beyond 20 or 30 kHz. I was using a Weber Vintage speaker at the time in an old Lopoline 1X12 convertible cab, as well as some Carvin 2X12 cabs. There is actually no need to worry about the sound of a todays solid state amp. Then, for grins and chuckles, I tried running the toaster monitor out into my Quilter Tone Block icepowfr the Gemini 1-P, and it 100a opened it up. Can you please tell me which one it is?

Therefore there was no need to go above 3khz. Now if I could only play better The differences are hardly distinguishable in general. Nice that you have found your tone.

We supply the A. This agrees with the 30 kHz value. Thanks for reaching out.

I icepowwer like to check and see if the typical -3dB bandwidth at 4 ohm loading value of 3 kHz, as given in the data sheet see highlighted line on page 5 of attachment is a correct value? It comes down to what is in there. We’re talking pre-Armstrong here!