Sanyo/B&O Icepower 200AC Rev.D, schematic about rev. engin., not complete finished - Page 3 - diyAudio
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Old 11th April 2010, 08:26 PM   #21
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I've tried some tube preamps with ICEpower amps... none of them worked well.

I cant agree at all with DVBjunky's impression of the 250ASX2's sound quality, but I think we might have very different preferences in how things should sound. I find that the 250ASX2 dont have good bass control, quite the opposite of DVBjunky.... The king of bass is the 1000ASP I think, although the ASX2 series is in my ears far better in the rest of the frequency range.
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Old 12th April 2010, 02:59 AM   #22
ontoaba is offline ontoaba  Indonesia
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Quote:
Originally Posted by StigErik View Post
I've tried some tube preamps with ICEpower amps... none of them worked well.

I cant agree at all with DVBjunky's impression of the 250ASX2's sound quality, but I think we might have very different preferences in how things should sound. I find that the 250ASX2 dont have good bass control, quite the opposite of DVBjunky.... The king of bass is the 1000ASP I think, although the ASX2 series is in my ears far better in the rest of the frequency range.
Always starting like this and no result at the end. None could solving this.

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Old 12th April 2010, 08:51 AM   #23
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Originally Posted by onto aban View Post
Always starting like this and no result at the end. None could solving this.
One rule needs attention in generall for more exact results by sound check:
removing the preamp
To realize this desire I have create a special cynch (chinch- cinch) wire. At one end - to connect the source device like cd player - normal connectors. And at the other end large connector versions with integrated divider network resistors (e. g. 47k - 4k7). This connector is to fed the power amp from which I want to know, how the sonic character is.

Of course - it should be still noted, that I do not have CD players in use, where a tube output stage with high output resistance is in use. Otherwise there I get an unwanted low pass character and I also cannot say anything about the final result.

theAnonymous1: thanks for this list from post #15.
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Old 29th April 2010, 03:18 PM   #24
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I have find follow threads concerning other discrete designs:
TC Electronics Switch amp
newclassd: the better class d amp? (pic for very simple discrete design about my post #23)
Ultimate sounded Class D for diy without custom made IC's like Tripath TA2020
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Old 21st September 2010, 06:05 PM   #25
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I still hope, that one of the members complete this schema (read post #1)
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Old 21st September 2010, 08:17 PM   #26
Pano is offline Pano  United States
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Quote:
Originally Posted by StigErik View Post
The king of bass is the 1000ASP
Agree, quite a beast. The smaller modules are good, too, but not as good in the bass. The Icepower amps are pretty clean. To the ear and to measurements.
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Old 13th February 2011, 10:34 AM   #27
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Topology from Icepower 200AC Rev.D - still in use by currently products? Or there are advanced technologies in the meantime?
Very special by this module is the fact, that there are no special parts in use (like Tripath) and therefore this topology actually special made for B&O and Sanyo STK series is also excellent for diy projects.
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Old 14th February 2011, 10:29 AM   #28
DDriver is offline DDriver  Ukraine
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Hi friends! Anybody have ICEpower full schematic?
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Old 16th June 2011, 10:36 AM   #29
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I am still looking arround for amp devices, where Icepower 200AC is in use. Additional I am looking for suppliers of this B&O module in small amounts.

in this case also this thread could be of interest:
B&O ICEpower modules any built?

Last edited by tiefbassuebertr; 16th June 2011 at 10:41 AM.
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Old 17th June 2011, 09:41 PM   #30
DDriver is offline DDriver  Ukraine
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tiefbassuebertr, can you "give a gift" for my personal use only ?
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