vol pot on Zhaolu 2.5C: NASTY - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, 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 2nd April 2008, 12:42 PM   #1
schro20 is offline schro20  United States
diyAudio Member
 
schro20's Avatar
 
Join Date: Mar 2008
Location: Altadena, CA
Default vol pot on Zhaolu 2.5C: NASTY

I think the first thing I have to do is to mod this volume pot. At very low settings it is very imprecise with a very large difference between left and right channel. Ouch. I mean, BIG difference.

My setup: Roku M1000 and Oppo 971H as sources fed into the Zhaolu and then into Linkwitz Plutos. At high volume this works nice, but in the morning I gotta go lower... and that leads to ridiculous imbalance.

Anyone mod this part of the Zhaolu 2.5C? The right answer is probably to just replace that whole section. But right now I want some simple even if temporary fix. Any suggestions?

peter
  Reply With Quote
Old 2nd April 2008, 03:24 PM   #2
DcibeL is offline DcibeL  Canada
diyAudio Member
 
DcibeL's Avatar
 
Join Date: May 2003
Location: Saskatchewan
That volume pot is for the relatively poor headphone preamp built into the Zhaolu 2.5. I wouldn't use that preamp for my amplifier, or anything really.

My recommendation is to use the regular analog out of the Zhaolu into a proper preamp.
__________________
The power of Science compels you!
  Reply With Quote
Old 2nd April 2008, 04:05 PM   #3
schro20 is offline schro20  United States
diyAudio Member
 
schro20's Avatar
 
Join Date: Mar 2008
Location: Altadena, CA
Quote:
Originally posted by DcibeL
My recommendation is to use the regular analog out of the Zhaolu into a proper preamp.
My original goal was to reduce clutter and cut down on the all the boxes of gear... So having *some* volume control on the inside of that case (seems like there is plenty of room) is an appealing path. One possible answer is to rip the headphone amp put and put in a passive stage with just a discrete "pot." Since the speakers are active I need to get a volume control somewhere in the path and would rather not have an additional box...

Maybe one of the Dantimax kits?

Peter
  Reply With Quote
Old 2nd April 2008, 08:13 PM   #4
DcibeL is offline DcibeL  Canada
diyAudio Member
 
DcibeL's Avatar
 
Join Date: May 2003
Location: Saskatchewan
Quote:
Originally posted by schro20
My original goal was to reduce clutter and cut down on the all the boxes of gear... So having *some* volume control on the inside of that case (seems like there is plenty of room) is an appealing path.
I've installed the kookaburra preamp (readymade pcbs no longer available) inside the Zhaolu where the headphone amp was, and run it off the Zhaolu's power supply. Works great. I'm sure there are lots of active preamps that would fit in there and could run from the +/- 15V supply available.
Quote:
Originally posted by schro20
One possible answer is to rip the headphone amp put and put in a passive stage with just a discrete "pot."
Also a very possible solution. I'm not sure a big pot like an Alps Blue Velvet would fit though due to the height of the chassis.
__________________
The power of Science compels you!
  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
nasty buzz in old 35EH5 amp PRNDL Tubes / Valves 12 6th January 2008 04:28 PM
Nasty ground loop alexmoose Tubes / Valves 2 28th August 2006 05:13 PM
Need input on my TL. FR has a nasty dip in it. GuyPanico Subwoofers 3 22nd May 2005 02:13 AM
nasty old resonance bostarob Multi-Way 13 3rd March 2003 06:00 PM


New To Site? Need Help?

All times are GMT. The time now is 05:51 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