JLM AUDIO

Hi friends. Currently having some VU issues with my LA500. It's always sounded great, but I've never been able to get to stay after calibration. Well, I recently pulled it out of the slot to rearrange some modules and when I put it back in, the VU and GR modes are both static at the same position. P...

HI Sam If the module changes when another module is added to the rack then it would indicate the power rails of the rack are moving under the load or that another module in the rack is linked to the comp link pin 6. So check the voltage of the power rails are correct with different combos of module...

Hi friends. I'm new to electronics so bare with me. I've built an LA-500 and the VU meter keeps drifting off after I calibrate it to 1.23 vac. On GR mode, the meter drifts above 0VU after I've calibrated it. And on VU mode the meter always sits between -10 & -7. After the most recent calibration, t...

Hi friends. I'm new to electronics so bare with me. I've built an LA-500 and the VU meter keeps drifting off after I calibrate it to 1.23 vac. On GR mode, the meter drifts above 0VU after I've calibrated it. And on VU mode the meter always sits between -10 & -7. After the most recent calibration, th...