Proel Wave 12A

[mattia7392]

Hi. I have a problem with a Proel Wave 12A speaker which the high signal does not reach the amplifier module.
Does anyone have the PRE-AMP scheme of this speaker or do they know the reason for the malfunction?

Thanks.

 

[mattia7392]

As hardware it should be similar to the Proel Flash 12A

 

[jussik]

I got hold of two Flash 12As, both with broken amps so now they have been wired as bi-amped passive speakers. My skills were not enough to fix the amps.

However, I just found what claims to be the schematic for Flash12A at PROEL FLASH 12A SCHEMATICS Service Manual download, schematics, eeprom, repair info for electronics experts
I'm not sure if that helps you but at least it looks credible to me. Won't help me fix my amps, though.

 

[AllenB]

It helps to have an oscilloscope in situations like this, or resort to board swapping.