Figure 1: ICEpowerA. Size: 10 x 10 x cm. General Description. The ICEpowerA is a general purpose amplifier solution. By using patented. Cheap Electronics Stocks, Buy Directly from China Suppliers:icepower a icepowerA iceA D class power amplifier digital amplifier module board . Cheap Network Cards, Buy Directly from China Suppliers:Digital power amplifier module of icepower A icepowerA D power amplifier digital amplifier.

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However, it doesn’t matter, since we obviously do not use the A, otherwise we would have communicated the W power.

3500w Digital Amplifier Class D Switch Power Supply Board for ICEpower 1000a

Nice that you have found your tone. That will put it to rest. I haven’t wanted to open it up and look at what is inside, I’m afraid to void the warranty. Below is the exact communication from their rep, Paul Meister.

The A was designed 15 years ago with only low frequency applications in mind. However, it must be mentioned, that you have probably misread the specs of the Icepower products. I went through several setups too before I fell in love with the same rig.

We’re talking pre-Armstrong here! 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? Any errata sheets for the data sheet? This is as shown on page 9 iecpower v1.

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 icepoeer everything since then and going forward is full bandwidth. Now if I could only play better It comes down to what is in there.

Icepower A Bandwidth – Profiler related discussions – Kemper Profiler Forum

Well, I LIKE having a cab behind or sometimes in front of me interacting with the guitar, and I like the traditional cab look. Thanks for reaching out. Every other doc shows a responce beyond 20 or 30 kHz. That explained the more sparkly and open sound, it was getting close to the direct-through-PA tone I was experiencing. My bandmates have iceepower complaining about the blanket-over-the-amp tone iceplwer my cab, another benefit of higher bandwidth.


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.

ghentaudio DIY Cable-Set for ICEpower A module

So all’s well that ends well. I went back and icdpower 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 suspect this is an error in their documentation. I figured the issue was the speaker.

I was using a Weber Vintage speaker at the time in an old Lopoline 1X12 convertible cab, as well as some Carvin 2X12 cabs. 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. The differences are hardly distinguishable in general. Anyway, I thought I should share the results of my experience with you all, it may help someone else shorten their path to tonal Iecpower with their Kemper.

A power amp that has its 3 dB corner at 3 kHz would have been unsalable even 50 years ago. Take it as you will. If you would like to use all features of this site, it is mandatory to enable JavaScript. Therefore there was no need to go above 3khz.

Kemper Profiler Forum Private forum Profiler related discussions. The power amps go up to 30 kHz with an error of less that a dB, according to the specs. I am wondering why there are so few Kemper users endorsing such a great product. My intention was to use it as a standalone amplifier to drive a cab and eliminate my pedalboard and boat-anchor tube amp. Also, are there any – 3dB BW measurements at 8 ohm loading for the A?


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. Can you please tell me which one it is? We supply the A. 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.

Ah, that makes sense. This agrees with the 30 kHz value. It is not an error in the datasheet. It is likely that you have looked up the phase responce graph, instead of the frequency responce.

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

Your browser has JavaScript disabled. Thanks for the help! If I had known then what I know now, Icepowerr 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. 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.

So glad Icwpower bought the Matrix.