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I was for certain not looking at the phase response, it was definitely the frequency response curve.

I suspect this is an error in their documentation. I 1000q wanted to open it up and look at what is inside, I’m afraid to void the warranty. However, it doesn’t matter, since we obviously do not use the A, otherwise we would have communicated the W power. That will put it to rest. Top curve is amplitude response. I went back and looked at the Icepower A -3dB upper bandwidth spec, it’s only 3 kHz albeit iccepower 4 ohms, likely a little higher at 8 ohms.

We supply the A. Ah, that makes sense. Below is the exact communication from their rep, Icelower Meister. Kemper Profiler Forum Private forum Profiler related discussions.

We have never got a report in the past that our build in power amps attenuate the highs. This is as shown on page 9 pf v1. If you would like to use all features of this site, it is mandatory to enable JavaScript.

We’re talking pre-Armstrong here! The differences are hardly icepkwer in general. Therefore there was no need to go above 3khz. Take it as you will.

ghentaudio DIY Cable-Set for ICEpower A module

Since I bought it, I have had many comments from fellow bandmates in the bands I have been in or am in regarding how dark the sound was from the cab, no high end. The A was designed 15 years ago with only low frequency applications in mind.

My bandmates have stopped complaining about the blanket-over-the-amp tone from my cab, another benefit of higher 0100a.


There is actually no need to worry about the sound of a todays solid state amp. 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.

Hopefully this post will not upset too many Power Head fans, but I would like to post my observations about the Power Head with the Icepower A amplifier and the Power Rack as well I assume, since they use the same power amplifier. Thanks for reaching out. Then, for grins and chuckles, I tried running the toaster monitor out into my Quilter Tone Block into the Gemini 1-P, and it really opened it up.

Thanks for the help! I went through several setups too before I 10000a in love with the same rig. However, it must be mentioned, that you have probably misread the specs of the Icepower products.

I am wondering why there are so few Kemper users endorsing such a great product. It seems on the low side. It sounds darned near just like the PA tone. 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.

Icepower A Bandwidth – Profiler related discussions – Kemper Profiler Forum

That explained the more sparkly and open sound, it was getting close to the direct-through-PA tone I was experiencing. This agrees with the 30 kHz value. I would 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? Icdpower power amps go up to 30 kHz with an error of less that a dB, according to the specs.

I was using a Weber Vintage speaker at the time in an old Lopoline 1X12 convertible cab, as well as some Carvin 2X12 cabs.


Icepower 1000A Bandwidth

It comes down to what is in icepowsr. Well, I LIKE having a cab behind or sometimes in front of me interacting with the guitar, and I like the traditional cab look. Any errata sheets for the data sheet? A power amp that has its 3 dB corner at 3 kHz would have been unsalable even 50 years ago. So glad I bought the Matrix. Every other doc shows a responce beyond 20 or 30 kHz.

icepower 1000a ICEpower 1000A Class D 1000W digital amplifier digital amplifier module board

Now if I could 0100a play better Can you please tell me which one it is? 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 the Quilter for rehearsals and recording. My intention was to use it as a standalone amplifier to drive a cab and eliminate my pedalboard and boat-anchor tube amp.

So all’s well that ends well. Nice that you have found your tone. It is likely that you have looked up the phase responce graph, instead of the frequency responce. Your browser has JavaScript disabled.

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. It is not an error in the datasheet.

Anyway, I thought I should share the results of my experience with you all, it may help someone else shorten their path 10000a tonal Nirvana with their Kemper. Also, are there any – 3dB BW measurements at 8 ohm loading for the A? I figured the issue was the speaker.