JLM AUDIO

Also, resistance between pins 1 and 2 of the input XLR is not between 3k and 4k as on the other channels, but 7.22k.

Hmm, I guess the resistor is not the problem. The 48v is getting to the JLM99v, but the values on the other pins are all wrong. Looking at it from the top, as on the wiring overlay, the left column should be 24v, 24v, and the right column 24v, 0v, 24v, 48v. Instead I have: left column, .1v, .8v, and...

OK, I found the source of the problem...but I have no idea how to fix it. It is very weird. There is a 10K resistor right underneath the JLM99v. On the side where the power comes in, it reads 48v. On the other 3 channels, the opposite side reads 24v. On this channel, the other side reads 0v. I repla...

Hey all--I was going to post this at The Lab but can't seem to get into my account there. I just built the BA4, and three channels work perfectly. Channel 3 is dead though. Here's the weird thing that happened...when I tested each, I got silence from 3...until I flipped the phase. Then I could hear ...