# Channel balance out **URL:** \ **Category:** Amplifiers\ **Created:** [July 17, 2020, 6:20pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035 "2020-07-17T18:20:09Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![RM](https://avatars.discourse-cdn.com/v4/letter/r/4bbf92/32.png) [@RM](https://forum.psaudio.com/u/RM)\ **Post date:** [July 17, 2020, 6:20pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/1 "2020-07-17T18:20:09Z")
Hi My gear P20 BHK mono blocks BHK pre DS DAC System turned on after nearly a month (was totally powered off from the main power switch at the back of P20), sound in left channel is significantly lower. All components and cables checked and problem seems to be in the power amp feeding the left channel. Any idea what’s going on people? Has anyone had this issue? RM ---
**Author:** ![st50maint](https://avatars.discourse-cdn.com/v4/letter/s/4af34b/32.png) [@st50maint](https://forum.psaudio.com/u/st50maint)\ **Post date:** [July 17, 2020, 7:01pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/2 "2020-07-17T19:01:51Z")
I assume you swapped the left and right cables that plug into to power amps? ---
**Author:** ![netspecht-2](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/netspecht-2/32/132_2.png) [@netspecht-2](https://forum.psaudio.com/u/netspecht-2)\ **Post date:** [July 17, 2020, 7:02pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/3 "2020-07-17T19:02:03Z")
I don’t own BHK gear. Do you have access to a tube tester? You might try switching the tubes between channels or try another set of tubes. Verify the balance is set correctly on the preamp. ---
**Author:** ![jamesh](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/jamesh/32/3871_2.png) [@jamesh](https://forum.psaudio.com/u/jamesh)\ **Post date:** [July 17, 2020, 7:11pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/4 "2020-07-17T19:11:17Z")
Have you checked to make sure the DSD and BHK pre’s balance controls are at 0? Also, how did you determine it is the amp causing the imbalance? ---
**Author:** ![owlsalum](https://avatars.discourse-cdn.com/v4/letter/o/e47c2d/32.png) [@owlsalum](https://forum.psaudio.com/u/owlsalum)\ **Post date:** [July 17, 2020, 7:26pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/5 "2020-07-17T19:26:33Z")
Tubes. I know you said it was turned off for month so in principle if the tubes were ok before they should be ok after. Be that as it may, I’d be switching tubes first act to diagnose the problem. That’s assuming of course you’ve checked your balance controls as James suggested. ---
**Author:** ![RM](https://avatars.discourse-cdn.com/v4/letter/r/4bbf92/32.png) [@RM](https://forum.psaudio.com/u/RM)\ **Post date:** [July 17, 2020, 8:14pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/6 "2020-07-17T20:14:42Z")
- balance controls … ok - check with another source … same issue - changed xlr left out from pre to right power and xlr right out from pre to left power … low output still in left speaker - checked with another pair of xlr … same issue - left speaker wire in right power and right speaker wire in left power … low output sound moves to right speaker ---
**Author:** ![RM](https://avatars.discourse-cdn.com/v4/letter/r/4bbf92/32.png) [@RM](https://forum.psaudio.com/u/RM)\ **Post date:** [July 17, 2020, 8:15pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/7 "2020-07-17T20:15:40Z")
swapped tubes also between both power … no change … low output still in left speaker ---
**Author:** ![nortonkp](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/nortonkp/32/65506_2.png) [@nortonkp](https://forum.psaudio.com/u/nortonkp)\ **Post date:** [July 17, 2020, 8:59pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/8 "2020-07-17T20:59:09Z")
Did you try completely swapping the speaker cables between the right & left sides of your system? ---
**Author:** ![jamesh](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/jamesh/32/3871_2.png) [@jamesh](https://forum.psaudio.com/u/jamesh)\ **Post date:** [July 17, 2020, 9:02pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/9 "2020-07-17T21:02:52Z")
Perfect, testing. Can’t ask for a whole lot better. In order to make the image sound in the center, how far do you have to adjust the balance in the pre to the left? ---
**Author:** ![RM](https://avatars.discourse-cdn.com/v4/letter/r/4bbf92/32.png) [@RM](https://forum.psaudio.com/u/RM)\ **Post date:** [July 17, 2020, 10:26pm UTC](https://forum.psaudio.com/t/channel-balance-out/18035/10 "2020-07-17T22:26:54Z")
between 18 and 20 ---
**Author:** ![owlsalum](https://avatars.discourse-cdn.com/v4/letter/o/e47c2d/32.png) [@owlsalum](https://forum.psaudio.com/u/owlsalum)\ **Post date:** [July 18, 2020, 12:01am UTC](https://forum.psaudio.com/t/channel-balance-out/18035/11 "2020-07-18T00:01:14Z")
One more suggestion. Try power cycling everything even though the system had been off awhile. No joy? Let your fingers do the dialing to PSA customer service. They’re the best.