Aleph 3 Heat sink capability - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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
Reply
 
Thread Tools Search this Thread
Old 10th June 2002, 12:03 AM   #1
diyAudio Member
 
Join Date: Dec 2001
Location: Avalon
Default Aleph 3 Heat sink capability

How hard can the Pass Aleph 3 chassis be pushed? Any one have specs on the Pass Aleph 3 thermals. Could you size it up...Aleph 5 output power.....could I increase the footprint by 4" all around could it handle it.
__________________
In The Days Before Rock 'n ' Roll
  Reply With Quote
Old 17th June 2002, 09:05 PM   #2
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
The Aleph 3 chassis is approximately .125 deg C.
per watt. Aleph 3's run about 200 watts, and have
about a 25 deg C temperature above ambient.

Better ventilation will improve this is bit, and you can easily
consider at 35 deg or so rise, so let's just say about 300
watts.
  Reply With Quote
Old 20th June 2002, 04:55 AM   #3
diyAudio Member
 
Join Date: Dec 2001
Location: Avalon
Thanks Nelson!!
I picked up a bunch of aleph 3 heatsinks from a surplus shop. I was thinking of maybe increasing the footprint of the amp all around by 4"(cutting corner heatsinks).

These heatsinks seem perfect for designing into a small speaker cabinet...Im thinking of using the Aleph 3's as monoblock amps for surround sound channels. PGE will love me

I'd love to see the inside of the amp, its such a tight fit, How were the T03 mosfets mounted on the Aleph 3? Ive got the support bars that hold 2 mosfets...I imagine they were mounted on opposite sides. I dont see how the power supply fit in there. Is there a chance you could email a pic to raincheck@covad.net

Thanks for all that you do!!!!!!!

I can finally get rid of my Soundcraftsman pcr800's!!!!!!!!!!!
__________________
In The Days Before Rock 'n ' Roll
  Reply With Quote
Old 20th June 2002, 07:42 AM   #4
diyAudio Member
 
Join Date: Feb 2001
Location: Columbia, SC
The PCB layouts for the sundry Alephs are in the backs of their respective service manuals. The devices were mounted on all four sides of the amps. The power supply was in the bottom, with the active circuitry above.
Jeez, I wish I had places where I could just walk in and buy heatsinks...

Grey
  Reply With Quote
Old 20th June 2002, 09:10 AM   #5
Banned
 
Join Date: Feb 2002
Location: Dallas,Texas
Default I'd love to see the inside of the amp, its such a tight fit

It is faily tight.
Attached Images
File Type: jpg alephtweek.jpg (62.3 KB, 811 views)
  Reply With Quote
Old 21st June 2002, 12:45 AM   #6
diyAudio Member
 
Join Date: Jun 2002
Location: Evanston, IL
Default That's a messy one...

The innards of that Aleph 3 looks really busy. Mine is really clean, not a lot of wires anywhere, and 3 or 4 wires from the capacitor bank to each amplifier board. Is that a default Aleph or have you been tinkering?
__________________
-Chris
  Reply With Quote
Old 21st June 2002, 12:46 AM   #7
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Default That is a awsome desighn

that is awsome harry haller i like that youll see mine soon i hope..


CUBES rule
  Reply With Quote
Old 21st June 2002, 02:11 AM   #8
Banned
 
Join Date: Feb 2002
Location: Dallas,Texas
Default been tinkering?

You're new around here aren't you?

H.H.
  Reply With Quote
Old 21st June 2002, 03:02 AM   #9
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
who me Jason

??


???
  Reply With Quote
Old 21st June 2002, 03:03 AM   #10
diyAudio Member
 
Join Date: Jun 2002
Location: Evanston, IL
Default new around here....

Yep... not new to the DIY game, but pretty new to the innards of Passlabs gear.
__________________
-Chris
  Reply With Quote

Reply


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
Aleph P1.7 heat sink? sugano Pass Labs 1 11th July 2006 03:56 PM
Aleph X heat sink thread Peter Daniel Pass Labs 306 24th July 2003 01:17 PM
IRFP9610 Heat Sink Aleph 2 Question (and others) TjongKristian Pass Labs 26 6th May 2003 08:43 AM
Aleph 2 Heat Sink (chassis) TjongKristian Pass Labs 32 21st December 2002 06:19 PM


New To Site? Need Help?

All times are GMT. The time now is 04:01 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2