Hello. I was thinking about buying a set JBL L212 (2 towers & Sub). The sub does work, but there is low output coming from the amplifier.

I was wondering if anyone was familiar with working on this system or had similar problems.

I wonder if it worth it trying to fix it and if towers will work normally as the set is now.

Also, JBL old paperwork says they will fix it, but it seems this info is outdated.

Does anyone have a amp (energizer) for the L212 or the complete sub for sale? I think its model is 212B or 212E