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 6th March 2011, 01:35 AM   #1
diyAudio Member
 
maartentje's Avatar
 
Join Date: Jun 2002
Location: USA, FL
Default Finished F5

Hi there,

First of all thank you Nelson Pass.
2x Mono F5, 300v Antek toroid, 4x10.000uf, Tech-diy components, Peter Daniel PCB, Heatsink from HeatsinkUSA.

About 10hrs listening to the amplifiers. I am play with Scan-Speak Revelator speakers 2-way 89db and a B1 preamp with 2n3819 (30volt). My previous amp was a TA2024 and listening to the F5 gives clearly a improvement. The only thing i don't get around yet, is that its sounds a little leaner then the TA2024. Not sure if that's the way it should sound or the TA2024 just sounds to rich.

See pics below.
Attached Images
File Type: jpg F5.jpg (130.8 KB, 1229 views)
File Type: jpg F5side.jpg (152.9 KB, 1193 views)
File Type: jpg ScanSpeak.jpg (135.7 KB, 1154 views)
  Reply With Quote
Old 6th March 2011, 01:50 AM   #2
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
Wonderful!!

Our most sincere congratulations on a successful project!

Can you post some photos of the inside?
__________________
Illustrated Build Guides - Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Hagerman Bugle 2 - Pass Aleph J - Me at BA '13
  Reply With Quote
Old 6th March 2011, 01:57 AM   #3
diyAudio Member
 
Join Date: Sep 2006
Location: Santa Rosa Beach, FL
Great job...... really looks nice!

I think the last time I saw heatsinks like that, they were on a Cray II tera-FLOP mainframe!
  Reply With Quote
Old 6th March 2011, 03:04 AM   #4
a.wayne is offline a.wayne  United States
diyAudio Member
 
a.wayne's Avatar
 
Join Date: May 2008
Location: Front Row Center
Quote:
Originally Posted by maartentje View Post
Hi there,

First of all thank you Nelson Pass.
2x Mono F5, 300v Antek toroid, 4x10.000uf, Tech-diy components, Peter Daniel PCB, Heatsink from HeatsinkUSA.

About 10hrs listening to the amplifiers. I am play with Scan-Speak Revelator speakers 2-way 89db and a B1 preamp with 2n3819 (30volt). My previous amp was a TA2024 and listening to the F5 gives clearly a improvement. The only thing i don't get around yet, is that its sounds a little leaner then the TA2024. Not sure if that's the way it should sound or the TA2024 just sounds to rich.

See pics below.

Most comments seem to suggest the F5 is lean in the bass regions, this of course will enhance the mid/high when listening ...
  Reply With Quote
Old 6th March 2011, 03:30 AM   #5
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
nice build, love the heatsinks, but i tell you what, thats some of the nicest looking wood cabinets ive seen, very very nice indeed!!

one thing i feel needs saying, there are so many f5 threads popping up to show off the build, is there not another venue for this?
  Reply With Quote
Old 6th March 2011, 04:29 AM   #6
Banned
 
Join Date: Nov 2006
Nice scanspeak drivers.
What cd player do you use?
  Reply With Quote
Old 6th March 2011, 05:48 AM   #7
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
yeah that slitcone is beautiful. if i hadnt bought my 21w/8554k i would be buying the set that are in the fs area at the moment
  Reply With Quote
Old 6th March 2011, 06:36 AM   #8
osscar is offline osscar  Latvia
diyAudio Member
 
osscar's Avatar
 
Join Date: May 2009
Location: Riga, LV
Great!
__________________
If time is money then I'm out of time
  Reply With Quote
Old 6th March 2011, 07:07 AM   #9
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
Looks like the 8.5" version, 11" long :

8.460" Wide x 11" Long Heatsink - HeatsinkUSA, LLC Store

Simulation with 1 FET per heatsink (for F5 SE monoblock), 32W per FET, 25C ambient temperature.

Good solution for F5 SE.


Patrick
Attached Images
File Type: jpg F5 Sim.jpg (26.3 KB, 1035 views)
  Reply With Quote
Old 6th March 2011, 07:14 AM   #10
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
For balanced F5, or one heat sink for 2 FETs (32W each), going to the 10" version, 12" long will also do.

10.000" - HeatsinkUSA, LLC Store

(Some here would say too hot. Not if you use Keratherm, IMHO.)


Patrick
Attached Images
File Type: jpg F5X Sim.jpg (25.1 KB, 1006 views)
  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
F5 Amps - Building a Quartet of Amps in search of the Ultimate F5 NYCOne Pass Labs 123 29th September 2011 12:04 AM
F5 Cascoded - an alternative for my interest in the Balanced F5 NYCOne Pass Labs 159 24th March 2011 05:23 AM
F5 Williams Audio Pass Labs 9 11th June 2010 09:13 PM
Thanks for the F5! CBRworm Pass Labs 2 13th September 2009 09:34 PM
Anybody help with F5? yammy1688 Pass Labs 2 28th October 2008 03:50 PM


New To Site? Need Help?

All times are GMT. The time now is 11:01 AM.


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