Problem with sub woofer / surround sound

[Jamesaitken42]

Hello,

I have a really old amp with a subwoofer connected, + 4 other speakers, which I use connected to my laptop setup. The sound was getting glitchy so I took it apart, found it was REALLY dusty inside and had a loose board (this thing is 30+ years old I think). I gave it a quick dust over and pushed the board back in place. Everything seems okay now... only I've created a new problem and I have NO IDEA what's causing it.

The sub now is really quiet when playing as normal with the Balance centred. When I move the balance either left or right the sub becomes loud again. I've tried switching off the balance and playing direct - didn't help. Tried switching all my speakers in to different ports to see if there was any problem there - didn't help. The only remedy is turning the bass right up and keeping the balance centred, which isn't ideal as this makes the other speakers rattle.

The amp is a Sansui AU-X111.

Bit of a strange problem I know, but if anyone has experienced this before I would love to know how you sorted it.

Thanks,
James

 

[DelJo63]

The balance control is burned-out at the center position -- it's old, has set there forever and as BASS is high current, it's now gone! You apparently have the skill, so find the impedance and power rating and replace it

 

[Jamesaitken42]

The balance control is burned-out at the center position -- it's old, has set there forever and as BASS is high current, it's now gone! You apparently have the skill, so find the impedance and power rating and replace it

Hello,

Appreciate the reply. It magically started working again! But I'm guessing it's on its last legs and will probably break again. Thanks for the info ?