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It is not an error in the datasheet. I haven’t wanted to open it up and look 100a what is inside, I’m afraid to void the warranty. This agrees with ixepower 30 kHz value. 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.
We’re talking pre-Armstrong here!
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. However, it doesn’t matter, since we obviously do not use the A, otherwise we would have communicated the W power.
Icepower 1000A Bandwidth
It sounds darned near 1000a like the PA tone. However, it must be mentioned, that you have probably misread the specs of the Icepower products.
I suspect this is an error in their documentation. 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.
Therefore there was no need to go above 3khz. Top curve is amplitude response.
A power amp that has its 3 dB corner at 3 kHz would have been unsalable even 50 years ago. Can you please tell me which one it is? Every other doc shows a responce beyond 20 or 30 kHz. So all’s well that ends well.
Icepower A Bandwidth – Profiler related discussions – Kemper Profiler Forum
The A was designed 15 years ago with only low frequency applications in mind. This is as shown on page 9 pf v1. Ah, that makes sense. Thanks for the help! 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.
I went through several setups too before I fell in love with the same rig. The differences are hardly distinguishable in general.
w Digital Amplifier Class D Switch Power Supply Board for ICEpower a | eBay
I was for certain not looking at the phase response, it was definitely the frequency response curve. Below is the exact communication from their rep, Paul Meister.
My intention was to use it icepwer a standalone amplifier to drive a cab and eliminate my pedalboard and boat-anchor tube amp. 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?
That will put iccepower to rest. It seems on the low side. 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. Take it as you will. I am wondering why there are so few Kemper users endorsing such a great product. There is actually no need to worry about the sound of a todays solid state amp. We have never got a report in the past that our build in power amps attenuate the highs.
My bandmates have stopped iceposer about the blanket-over-the-amp tone from my cab, another benefit of higher bandwidth. We supply the A. It comes down to what is in there. Well, I 1000x having a cab behind or sometimes in front of me interacting with the guitar, and I like the traditional cab look. I was using a Weber Vintage speaker at the time in an old Lopoline 1X12 convertible cab, as well as some Carvin 2X12 cabs.
3500w Digital Amplifier Class D Switch Power Supply Board for ICEpower 1000a
Anyway, I thought I should share the results of my experience with you all, it may help someone else shorten their path to tonal Nirvana with their Kemper. Nice that you have found your tone. I figured the issue was the speaker.
It is likely that you have looked up the phase responce graph, instead of the frequency responce.