Will This Enclosure Work For F5/F6? - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 23rd April 2012, 02:47 PM   #11
diyAudio Member
Join Date: Feb 2002
Location: Canada
SiliconRay has responded that his heatsinks are,

300mm x 150mm x 50mm, base thickness is 10mm. This enclosure was originally designed for 30W x 2 class A amp.
12" x 6" x 2" but are vertical so therefore more efficient?

  Reply With Quote
Old 23rd April 2012, 07:25 PM   #12
diyAudio Member
vdi_nenna's Avatar
Join Date: Oct 2000
Location: PA, USA
Blog Entries: 1
Send a message via Yahoo to vdi_nenna
This is directly from the F5 article.

Heat Sinking
At 1.3 amps per channel, you will see idle heat dissipation of 62 watts. To keep the temperature rise of the heat sink to 20 deg C. above the ambient temperature, you will want a heat sink rated at about .6 deg C./watt for each transistor. An example of this would be a chunk of finned aluminum, with a series of 2” fins attached to an 8” by 6” base. You will need two per channel.

If you were to stack the above described heat sink, you'd have a 8"x12"x2" heat sink, or 16"x6"x2" side by side.
I build, therefore I am.

Last edited by vdi_nenna; 23rd April 2012 at 07:32 PM.
  Reply With Quote
Old 23rd April 2012, 08:03 PM   #13
diyAudio Member
Join Date: Feb 2009
this depends on your ambient temp. you can have a sink temp of 55C.
so 55-ambient temp=max temp rise.
temp rise/power dissipation= sinks C/W rating.

i have ambient temp of 22C. so 33C max temp rise.
33/64=0.5C/W pr channel.
  Reply With Quote
Old 25th April 2012, 10:45 PM   #14
JZatopa is offline JZatopa  United States
diyAudio Member
Join Date: May 2003
Location: Chicago
That antek worked great for my F5. I was even able to crank up the bias to about .65v (if I remember right). I did use the black one though.
  Reply With Quote
Old 26th April 2012, 05:19 AM   #15
diyAudio Member
oneplustwo's Avatar
Join Date: Apr 2009
Location: San Francisco
I used the black antek heat sinks from that case and have not had problems with bias up to 0.6. I can keep my hands on them indefinitely. I do have good ventilation though with the bottom being semi open.
  Reply With Quote
Old 27th April 2012, 04:02 AM   #16
Jason is offline Jason  Australia
diyAudio Administrator
Jason's Avatar
Join Date: Oct 2000
Location: Melbourne
Blog Entries: 1
Trademark infringing posts removed
  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
First Watt F4 ,F5, F6, F7, F8 ? MikeW Pass Labs 10 6th June 2015 07:56 PM
Would this enclosure work for an F5? JZatopa Pass Labs 5 21st November 2010 04:55 PM
How do you work the enclosure? Allan Tremblay Class D 1 2nd February 2010 01:28 AM
Modushop.biz heatsinked enclosure + F5 Amplifier (Nearly Complete) incl traffo rhysh Swap Meet 10 3rd July 2009 09:08 PM
Whats the strangest enclosure you found to work? Scioneer Full Range 0 20th September 2006 03:54 AM

New To Site? Need Help?

All times are GMT. The time now is 07:34 AM.

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