JLM AUDIO

Hi Joe. So I've just got around to checking that the 2 units are tracking correctly when linked. I decided to re-calibrate first, but came across a strange problem - I'm sending a 1khz tone through my desk, meters are hitting 0db on the desk, patching the compressors to the master bus. I'm unable t...

Hi Joe. So I've just got around to checking that the 2 units are tracking correctly when linked. I decided to re-calibrate first, but came across a strange problem - I'm sending a 1khz tone through my desk, meters are hitting 0db on the desk, patching the compressors to the master bus. I'm unable to...

got it sorted. one of the solder joints had been pulled up off the board - probably when I pushed the cable in with too much force

on another note, the 2 compressors aren't compressing the same amount when linked.. Pretty sure they are calibrated correctly but I will check.

Yes, it's the transformer. the Ohmmeter readings are ok but swapping the transformers over between units results in the problem moving also. Switched ribbon cables as well but that seems fine.

Thanks for the info Joe, i've finished building my 2nd LA500 but there's a problem. Compression works, but with compression 'in', the low freqs rolls off around 1khz and there's a level drop around 7db. In bypass the signal is normal. I've swapped over the red pcb with my good unit and the problem i...