Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

F5 power amplifier
F5 power amplifier
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 12th January 2012, 01:59 PM   #11591
Zen Mod is offline Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
F5 power amplifier
Iris?
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa...© by Mighty ZM
  Reply With Quote
Old 12th January 2012, 02:21 PM   #11592
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
F5 power amplifier
Probably ZM, as I see the B5 - which is OB X-Over. Good call.
  Reply With Quote
Old 12th January 2012, 03:06 PM   #11593
albertNL is offline albertNL
diyAudio Member
 
Join Date: Sep 2011
F5 power amplifier
Quote:
Originally Posted by Tea-Bag View Post
Probably ZM, as I see the B5 - which is OB X-Over. Good call.
Sorry, Tea-Bag, it's a B1, not B5.

Well spotted, Zen-Mod. They are Silver Iris 15". In that photo still in the boxes they came in. I have since mounted them in 24 x 36 (600 x 900) MDF baffles,07032011343.jpg
but they do not sound right to me. I hope to test some Fostex FE206En's in the same baffles in a few weeks time, but am not sure it is going to give the sound I want.

The above is setup in Australia where I currently am. I run a different system in Europe with an original Aleph 3 for mid/high on a set of old Magnepan MG3A's (all bought second hand). I have never been able to compare the F5 to the Aleph 3 as they are 20,000 km apart and I do not have a set of speaker cables that are long enough!

In Europe, I also have a set of Aleph 2 clone monoblocks a friend of mine built for me some years ago. Nice and of course more power, but the Aleph 3 is nicer. Could be parts too, as in the last 8 months or so I have been reading a lot on this site. Am considering upgrading the Aleph 2's (ZVP3310A for input and CSS, Silmic II 220uF caps and replacing the low-level wiring that I recently discovered was very cheap silver on copper on steel core coax).

I am considering replacing the Iris OB's by Magnepan MG1.7 (would like 3.7 or new 20.7 but hey, these things cost serious money! Too bad they dropped the biamp option on the .7's ). But for Magnepans the F5 is probably too small. Hence the need for a TURBO!

PS Yes, those are computer tapes under the feet of the OB's. I used them to angle the speakers to my listening position.

Last edited by albertNL; 12th January 2012 at 03:09 PM. Reason: Added PS
  Reply With Quote
Old 12th January 2012, 03:47 PM   #11594
vdi_nenna is offline vdi_nenna  United States
diyAudio Member
 
vdi_nenna's Avatar
 
Join Date: Oct 2000
Location: PA, USA
F5 power amplifier Send a message via Yahoo to vdi_nenna
AlberNL,

What dimensions are the room? Is it square, rectanglar, ect?

Try moving them out about 3-4 feet from the back wall. They look like they are about 2.5 ft from the back wall now. Looks too close in my opinion.

Where are your sidewalls in respect to the center of the driver?
__________________
I build, therefore I am.
  Reply With Quote
Old 12th January 2012, 03:55 PM   #11595
jacco vermeulen is offline jacco vermeulen  Netherlands
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
Quote:
Originally Posted by albertNL View Post
do not have a set of speaker cables that are long enough
Think i saw a Tardis flash by at Ebay.
__________________
Why does it hurt when I Pee ? (Ay Ay Ay https://www.youtube.com/watch?v=w5fLGWrHouk)
  Reply With Quote
Old 12th January 2012, 03:59 PM   #11596
merlin2069er is offline merlin2069er  Canada
diyAudio Member
 
merlin2069er's Avatar
 
Join Date: Sep 2008
Location: Toronto
Send a message via MSN to merlin2069er
Anyone build a pair of Manzanita open baffle speakers?

I'm interested in putting together a pair for my F5 amp.
  Reply With Quote
Old 12th January 2012, 04:10 PM   #11597
Zen Mod is offline Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
F5 power amplifier
whazzat ?

edit

found it

Fast, fun, Inexpensive OB project
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa...© by Mighty ZM

Last edited by Zen Mod; 12th January 2012 at 04:12 PM.
  Reply With Quote
Old 12th January 2012, 04:12 PM   #11598
labjr is offline labjr  United States
diyAudio Member
 
Join Date: Apr 2003
Location: MA
Quote:
Originally Posted by Nelson Pass View Post

There are several options, the base being an F5 with a few parts altered
and an extra pair of outputs.

Where are we gonna get matched sets of Fairchild Outputs?
  Reply With Quote
Old 12th January 2012, 04:18 PM   #11599
Bksabath is offline Bksabath  United Kingdom
Banned
 
Join Date: Dec 2007
Got plenty of FQA12P20 and FQP19N20

The FQP are the TO220 kind but had them togheter for last4/5 months with no problem.
drop me PM if interested.
  Reply With Quote
Old 12th January 2012, 04:56 PM   #11600
labjr is offline labjr  United States
diyAudio Member
 
Join Date: Apr 2003
Location: MA
Looks like FQA19N20C has to be a higher current part then the FQA12P20 in the F5. Seems kind of scary to use a TO220 part considering how hot these parts run in the amp.

I do have some of both which I've had for while. Just not sure how many are needed to find matching pairs.

Last edited by labjr; 12th January 2012 at 05:16 PM.
  Reply With Quote

Reply


F5 power amplifierHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rockford Fosgate Power 20001 bd amplifier power rating?? pachoorion Car Audio 8 8th May 2011 11:49 PM
Power transformers versus amplifier output power..what is your option? destroyer X Solid State 38 9th May 2009 06:23 PM
McIntosh Power Amplifier Power Guard johnnyrt Solid State 2 23rd August 2007 11:22 PM
Output power for a power amplifier Progg70 Solid State 33 10th September 2006 09:44 AM
Amplifier 3000 Wats Rms Power + Smps Higcht Power Bestiality MARAVILLASAUDIO Class D 1 5th November 2004 05:06 PM


New To Site? Need Help?

All times are GMT. The time now is 12:26 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki