Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

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 23rd January 2005, 04:16 PM   #1
KBK is offline KBK  Canada
diyAudio Member
 
Join Date: Dec 2003
Location: The Wilds Of Canada
Default Found cheap (remote!) 4-ch used VCA's for 2 way design with DCX2496

Found a cheap 4 channel VCA box That can be modded if desired. should give you a basis for running that DCX2496 with a VOLUME CONTROL, for once! At least you can do two ways. Maybe get two..or find a Yammie in the line that does 6 channel for the three ways.

The cheap way out of this frickin' issue with these Behringer units.... took me awhile, but I finally tripped over a cheap solution.

Tha YAMAHA DSR-100 PRO. A surround (dolby surround basic) unit processor from days gone by. It has remote volume function, it uses standard parts ands is easy to modify. It has a Volume controlled 4 channel (full freq bandwidth) I/O for outboard processors! Exactly what the doctor ordered!

Find one on e-bay..today.
  Reply With Quote
Old 24th January 2005, 12:55 AM   #2
KBK is offline KBK  Canada
diyAudio Member
 
Join Date: Dec 2003
Location: The Wilds Of Canada
I opened the unit to take a look at it. It uses the motor driven volume, an alps unit, to indicate postion, and control the VCA's. that's all. It isn't actually used.

All the PS local buffers for all the hardware, and the coupling caps are are all ELNA Duorex Caps. There must be a hundred of the little guys.

The main PS caps, for the matrix decoder, are BLACK GATE, F series.

Not too shabby. I was going to mod it, but with what? I might remove all the unessessary componentry, but that's about it.
  Reply With Quote
Old 24th January 2005, 02:45 AM   #3
KBK is offline KBK  Canada
diyAudio Member
 
Join Date: Dec 2003
Location: The Wilds Of Canada
I hooked it up,and it doesn't sound too bad. Now to open up the dyanmics a bit with some cap value changes for the coupling caps, maybe a better buffer cap or two for the VCA's. It may be possible to re-wire it for 6 channel as well. Hard to say. The other two channels are derived for the sub and center, so... it may be doable though. There's enough VCA's in there to choke a horse.
  Reply With Quote
Old 14th February 2005, 03:32 PM   #4
diyAudio Member
 
Join Date: Feb 2005
Location: Taiwan
Default DSR-100 pro

Dear KBK,

Please keep your modification result post.

Currently, I'm evaluating the DCX2496, and I also have DSR-100 for a very long time. So I have the same idea with you.

DSR-100 was designed to connect with Yamaha's DSP-100 for adding pro-logic center channel into thier DSP procecer. It's at last 15 years-old product.

With DSP interface function, it provide 6-ch vol control for yamaha's 6 ch dsp signals. (main L/R, Front L/R, and real L/R)

I'm kind of afraid the VCA can not accept the full swing signal from the DCX2496 for gaining the digital bits resolution.

Let me know your progress, and where to modify. Thanks

ultravox
  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
Found some Vishay S102K very cheap harvardian Parts 17 2nd January 2008 09:41 PM
Found: source for cheap ladder attenuators Serow Parts 131 6th May 2007 02:55 PM
Cheap sonosub found...I think... mazeroth Subwoofers 15 2nd January 2005 04:24 PM
found some cheap surplus caps (big but low voltage) cowanrg Parts 0 3rd December 2004 06:53 AM


New To Site? Need Help?

All times are GMT. The time now is 02:16 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