B&K EX-442 Mods? - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

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 19th October 2013, 04:23 AM   #1
ZeroG is offline ZeroG  United States
diyAudio Member
Join Date: Sep 2008
Location: San Diego, CA
Default B&K EX-442 Mods?

Just obtained a B&K EX-442 from fleabay, and would like to mod it a bit for a sweeter top end (once the tobacco smell subsides! SHEESH! There should be a checkbox for those who wish to avoid these! It stinks!)

I've seen different mod companies out there, but if it's just caps, a few high end rectifiers, diodes and resistors, then why not just do it myself? I figure to replace all the electrolytics with Silmic IIs. Not sure if the main filter caps need replacement or not. The bottom end is pretty good as it stands.

The thing is - which resistors, rectifiers, diodes, etc should be replaced?

Anyone out there who has upgraded their B&K EX-442 and can advise about this? Or have a schematic to share?

Thanks for any help!

EDIT: Schematic at hifiengine.com

Last edited by ZeroG; 20th October 2013 at 03:38 AM.
  Reply With Quote
Old 20th October 2013, 03:48 AM   #2
ZeroG is offline ZeroG  United States
diyAudio Member
Join Date: Sep 2008
Location: San Diego, CA
Default EX-442 Schematic Questions

Found the schematic, from hifiengine of all places. Unfortunately it's too big to attach. On page 3/4 it says that the EX-442 and the M200 are the same except for one of the driver boards and how it's strapped in parallel. Not exactly sure what it means.

I have both amps, and am now wondering if it would be prudent and wise to try to convert the EX-442 into an M200, since I've heard how the M200 is one of the very best of the early B&K offerings. Or maybe leave well enough alone...
  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
Cambridge CD2 manuals, schematics & mods dutchaussie Digital Source 16 3rd February 2015 09:51 PM
digidesign 442 I/O as standalone DAC for S/PDIF transport transport.nut Digital Source 40 23rd July 2010 01:46 PM
MICROMEGA Drive 3 & DAC Faulty & MODS eldarvanyar Digital Source 7 28th April 2010 07:30 PM
Looking for BK EX-442 schematics Zero Cool Solid State 2 12th November 2008 06:14 PM

New To Site? Need Help?

All times are GMT. The time now is 09:26 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