AMB Laboratories DIY Audio Forums

hi-fi par excellence

Skip to content

 Share |
    [f] AMB on Facebook

Need help on sound level vary between L & R

beta22
Post a reply

Re: Need help on sound level vary between L & R

Postby amb » October 5th, 2018, 12:30 am

So the channel imbalance occurs at any volume control setting, and only with low impedance headphones? Hmm.

One last thing to check. Make sure the output resistors are all still 0.47Ω. Most DMMs can’t get an accurate reading of such low resistances, but the readings shouldn’t be too far off, and should be consistent amongst each of them.

If this still doesn’t reveal a problem, then I’m out of ideas...
User avatar
amb
Site Admin
 
Posts: 10379
Likes: 175 posts
Liked in: 482 posts
Joined: March 29th, 2010, 9:49 pm
Location: Sunnyvale, CA
Country: United States (us)
Top

Re: Need help on sound level vary between L & R

Postby Helios » November 14th, 2018, 10:36 pm

Sorry that I didn't check it for a while. Yes, it occurs on the full range of the volume control, even I changed to another potentiometer.
Helios
 
Posts: 26
Likes: 0 post
Liked in: 0 post
Joined: December 17th, 2013, 9:00 pm
Location: HK
Country: Hong Kong (hk)
Top

Re: Need help on sound level vary between L & R

Postby amb » November 14th, 2018, 10:39 pm

Did you check the output resistors as I described above?
User avatar
amb
Site Admin
 
Posts: 10379
Likes: 175 posts
Liked in: 482 posts
Joined: March 29th, 2010, 9:49 pm
Location: Sunnyvale, CA
Country: United States (us)
Top
Previous
Post a reply

Return to β22 amplifier

Who is online

Users browsing this forum: No registered users and 0 guests

Quick Links

• AMB audio DIY resources
• AMB audio shop

Powered by phpBB® Forum Software © phpBB Group
Americanized by Maël Soucaze.
phpBB SEO
Protected by Anti-Spam ACP