active system, first pictures - 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 16th September 2004, 06:03 PM   #1
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Default active system, first pictures

first pictures of my new active system
2x21w8555-01 with Aleph 5
12m4631g00 revelator with A3
d9505/990000 revelator with a3

A5(mono) contains two seperate toroids (300VA) for each voltage rail, two bridges, 2x47000uF, 2.2mh(0,47R), 2x47000uF+12x4700uF
A3(mono) contains 470VA, 2 bridges,2x47000uF, 2.2mH, 20x4700uF
A3(mono) contains 300VA, 2 bridges, 4x22000uF, 2.2mH, 20x4700uF
total uF (stereo) will be 244400+188000+182000=614400x2=1.228.800uF!! So special care should be taken with switching on. The caps will be loaded with large 100R and after 1 minute full power will kick in. (with a programmeble timerelais)
Here are the first pictures
Attached Images
File Type: jpg dsc00880.jpg (93.8 KB, 3891 views)
  Reply With Quote
Old 16th September 2004, 06:04 PM   #2
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Default p2

picture 2
Attached Images
File Type: jpg dsc00883.jpg (98.7 KB, 3522 views)
  Reply With Quote
Old 16th September 2004, 06:06 PM   #3
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Default p3

picture 3
Attached Images
File Type: jpg dsc00885.jpg (88.4 KB, 3167 views)
  Reply With Quote
Old 16th September 2004, 06:07 PM   #4
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Default last one for today

picture show main parts of one monoblock
Attached Images
File Type: jpg dsc00889.jpg (93.9 KB, 3321 views)
  Reply With Quote
Old 16th September 2004, 10:35 PM   #5
diyAudio Member
 
Join Date: Aug 2002
Location: Toronto, Canada
That looks serious!

What are you using for the active crossover?

Dennis
  Reply With Quote
Old 17th September 2004, 09:04 AM   #6
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Im using a nice 24dB LR filter from BMM-electronics

http://www.bmm-electronics.com/Product.asp?Product_ID=6

Maybe later I will build something else, dunno yet

I just finished wiring the main part of the power supply, many more wiring will follow...
Attached Images
File Type: jpg dsc00891a.jpg (83.3 KB, 3030 views)
  Reply With Quote
Old 17th September 2004, 11:26 AM   #7
Oil is offline Oil  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: Midlands, UK
where did you source you chokes from?

Will be interesting to see the thermal management! - looks very nice work
  Reply With Quote
Old 17th September 2004, 12:18 PM   #8
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Chokes where bought here;
http://www.speakerland.nl/luchtspoelen.htm


If thermal problem will occur then fan fan will be installed and will be places in another room (noise) or something....
  Reply With Quote
Old 5th October 2004, 05:16 PM   #9
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
today installed 3 Thermistors (5Ohm ntc)+10 ohm resistor to repress inrush current. After 40 sec's they will be bridged.
So far so good! Then installed 1 Aleph 5 en that worked as well!
Old speaker; and there was sound!!!! yes!!!
And you can feeeeel real power and control, Je**s this is nice!
No hiss, buzz or anything! And dynamic range !
I like it, will continue building and will send some new pictures soon.
By the way, how hot can/should the heat sinks be after 1 hour?
What can be tolerated?
  Reply With Quote
Old 5th October 2004, 05:28 PM   #10
Badge is offline Badge  United States
diyAudio Member
 
Join Date: May 2004
Location: Oregon
show us a copy of your electric bill after one month of operation. I think you could power a small city off that array.
__________________
The freaks stick together, they are a tight old crew
  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
Help with old thread on system pictures dumrum Multi-Way 0 18th October 2004 07:39 AM


New To Site? Need Help?

All times are GMT. The time now is 01:29 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