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Old 23rd July 2008, 06:27 PM   #31
Pano is offline Pano  United States
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I've used the ICEpower125ASX2 module, nice product.

In fact, I even have a commercial product based on it.

It's an "all in one board", the SMPS is on the same PCB. Just move a jumper to go from low voltage mains (100-150V) to high voltage mains (180-250).

It's a nice sounding amp, very tight and and powerful in the bass. Not as euphonic as the Tripath stuff, more neutral. Great bandwidth too.

B&O seem to have done a good job with the output filtering, it's pretty clean.

Of course I made a few tweaks, mostly to the input circuit, but it's OK stock.
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Old 23rd July 2008, 11:47 PM   #32
flshzug is offline flshzug  Antarctica
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As far I get , 92.4 db/ 1 meter should be ok with 200asc ? Bought one , cause it looks like a deal, so I can spend more $$$ tweaking the factory JBL crossover hehe. Then... how about preamp/signal conditioning? For now I want to build something like opamp attenuator with resistive element in feedback loop.
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Old 24th July 2008, 02:20 AM   #33
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With 92.4 db/ 1 meter, 16 watts will give you 104 dB heaps.
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Old 24th July 2008, 02:17 PM   #34
flshzug is offline flshzug  Antarctica
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i ve been dissecting that asc200 Audio Precision plot, distortion is rising with frequency, 6khz curve is quite scary, so i sense biamping coming this way ... (runs even until 1khz tho, looks quite good infact )

FYI , innard pictures:

http://www.6moons.com/audioreviews/bcdtrio/trio.html

the atenuator looks to be standard integrated, let me know if you see more tidbits .
I want to build withg this chip,
http://www.profusionplc.com/pro/gex/...partno=MAS6116
either with 5534+jfet input , or the new linear tech opamps.
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Old 1st August 2008, 12:56 AM   #35
lazenna is offline lazenna  Australia
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Hello TNT .Can you tell me from where you bought the 1000asp modules as I want to try some.Thx.
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Old 1st August 2008, 07:11 AM   #36
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Quote:
Originally posted by otto88
With 92.4 db/ 1 meter, 16 watts will give you 104 dB heaps.
Not if you want any sort of realistic dynamic range at the listening position, especially with larger works.
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Old 1st August 2008, 09:42 AM   #37
TNT is online now TNT  Sweden
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Sorry, these modules are only for companies - I was lucky getting hands on a pair.

BR /

Quote:
Originally posted by lazenna
Hello TNT .Can you tell me from where you bought the 1000asp modules as I want to try some.Thx.
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Old 9th August 2008, 05:34 PM   #38
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I've been playing with the 200ASC modules from YFW and I have to say I'm pleased with my purchase (and glad I got them before the price jumped to $199).

They sound as good as my junk test speakers will allow them sound. And no, the highs are not missing or rolled-off like some have suggested.

They may only be ~40W amplifiers, but that is perfectly fine with my neighbors. If I played them even close to clipping I would probably have someone banging on my front door.

I replaced the 50v 560uF supply cap with a Panasonic FC 63v 820uF. I also added two additional 63v 820uF caps across the J2 PS header.

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Old 9th August 2008, 05:43 PM   #39
john65b is online now john65b  United States
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Anoymous1 - how do these sound compared with the Tripath TA3020 from the DCP-501? Pano indicated his comments (ASC200 vs typical Tripath) earlier.

I have my last DCP-501 still in the box (all modded, but back in the original chassis as new), and have four of the ASC200 to experiment with.

I had a new Bel Canto S300, which has this same ASC200 module, but sold it. It was OK, I preferred my UCD400 over the ASC200, but at this price...
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Old 10th August 2008, 08:21 AM   #40
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Well with all the time, effort, and money I've put into various amps/modules in the last few years I still do not own a decent set of speakers. I have some very crude test speakers thrown together, but they aren't good enough to make a very fair comparison between different amps.

The bass seems solid and the highs are there, but I'm not particularly picky. The amp has to have a fairly obvious fault for me to even notice.

I have quite a few amps I would really like to test against each other on some good speakers, but the way I'm going I don't think I will ever own a pair.

I have a set of Heil AMTs that have been waiting well over a year for me to decide what to pair them with.

EDIT: Oops, I noticed I said I put the extra supply caps across the J2 header in my previous post; I meant J1.
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