B&O ICEpower modules – any built? - Page 5 - diyAudio
Go Back   Home > Forums > Amplifiers > Class D
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 11th August 2008, 05:46 PM   #41
diyAudio Member
dudaindc's Avatar
Join Date: Sep 2005
Location: Metro Washington DC
Originally posted by theAnonymous1
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).
I got four of these... still waiting... glad to hear you were not disapointed.

  Reply With Quote
Old 11th August 2008, 07:23 PM   #42
diyAudio Member
theAnonymous1's Avatar
Join Date: Feb 2004
Location: Anonymityville
My only disappointment with the modules is the poor thermal design. It would have been nice if they built them in a way the could easily be attached to a heatsink.

They only get slightly warm after playing for awhile, but I haven't pushed them very hard. I can imagine they would heat up a lot more if they were used as a small sub amp that was often pushed to clipping.
  Reply With Quote
Old 12th August 2008, 01:56 AM   #43
diyAudio Member
otto88's Avatar
Join Date: Dec 2007
Maybe for sub amp use they'd be best with a large slow moving fan, like in quiet PCs . .
  Reply With Quote
Old 12th August 2008, 07:55 AM   #44
Nisbeth is online now Nisbeth  Denmark
diyAudio Member
Nisbeth's Avatar
Join Date: Jan 2001
Location: Denmark
The 200ASCs are used in many commercial speakers/subwoofers without any fans or heatsinks, so if I were you I'd wait a little before I start worrying

  Reply With Quote
Old 12th August 2008, 12:56 PM   #45
diyAudio Member
theAnonymous1's Avatar
Join Date: Feb 2004
Location: Anonymityville
Originally posted by Nisbeth
The 200ASCs are used in many commercial speakers/subwoofers without any fans or heatsinks, so if I were you I'd wait a little before I start worrying

I didn't say I was worried, I just said it would have been nice if they were built in a way that allowed a heatsink to be attached.

The continuous output power these modules are capable of is a lot less than the devices could handle if properly cooled. The proof of that is in the datasheet
  Reply With Quote
Old 20th August 2008, 05:34 PM   #46
diyAudio Member
Join Date: May 2007
Just keep in mind that some of the modules are missing some basic protection circuitry - might or might not matter to you ...

Originally posted by buzz1939
Maybe this is mentioned above but just a reminder, be sure you're clear on whether the modules have any protection against shorts, dc - a little discussion by 2 engineers here (Jack Hidley, formerly of NHT) and here

"I’ve had a lot of experience with the 500A modules and even more with the 500ASP modules. I’ve gained most of experience because of the failure with causes by the lack protection these modules offer, generally caused by customer errors. The only protection the 500A modules offer is under-voltage per B&O; this is why we quit using them on our customers’ product." - EJ Sarmento, Wyred 4 Sound

"I completely agree about the total lack of protection circuitry on the B&O modules. It was very shortsighted of B&O to not include anything and especially dumb to not disclose this for a long time. For both the P2 and P5, we had to build an extra PCB to add all of the normal protection to the amplifier. Shorts, DC, etc. Any power amplifier without these basic protection circuits is just not acceptable." - Jack Hidley, ex NHT
  Reply With Quote
Old 23rd August 2008, 09:43 PM   #47
gagnou is offline gagnou  Greece
diyAudio Member
gagnou's Avatar
Join Date: May 2006
Anonymous1, I have a question about the central hole of the modules.
Is it for grounding to the case / mains earth?
I bought a pair from the same source but haven't assembled them yet.
  Reply With Quote
Old 29th August 2008, 06:55 PM   #48
BFNY is offline BFNY  United States
diyAudio Member
Join Date: May 2004
Location: Saratoga NY
Originally posted by TNT
Sorry, these modules are only for companies - I was lucky getting hands on a pair.

BR /

You can buy the 1000ASP module from 2 sources - Marchand Electronics,


or this guy


Both sell them for about 500. each, so I would buy from Marchand versus a guy in Taiwan.

FYI, they are blowing out the NHT Power2 for $499. that has 3 B&O modules inside - one 500ASP and 2 500A.
see post 20 -

"The Power2 uses one 500ASP and TWO 500As. The amplifier channel on the 500ASP does nothing. This way both channels have absolutely identical behavior since they use exactly the same amplifier module."

If you buy two Power2s, you have 6 modules.


  Reply With Quote
Old 30th August 2008, 10:11 AM   #49
Phill is offline Phill  Mali
diyAudio Member
Join Date: Nov 2003
Location: France dand le sud
I build a 500A
I doubt on connecting connector JST
the data sheet said something (page 3/16)
and serigraphy said something else
where is the pin 1?
Thanks !

Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 7th September 2008, 10:13 AM   #50
Join Date: Jan 2005
Im giving icepower a second chance, bought two 200ACS modules off ebay, i´ll let u know how it goes.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Icepower Modules spchu Class D 15 23rd May 2011 10:24 PM
New 3rd Generation ICEpower modules.... TheShaman Class D 8 16th February 2009 03:44 PM
Icepower car amps for modules? bwaslo Class D 3 10th September 2008 05:42 PM

New To Site? Need Help?

All times are GMT. The time now is 04:00 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2