After reading the great support on Talkbass with Bob Lee I now find myself needing to ask a technical question on my beloved PLX 2402
Did a big outdoor show last Sat night, and my trusty rig went into shutdown about 5 times. I run a PLX 2402 into an Alembic F2B with a SansAmp Para DI driver in front of the Alembic. Only drove one speaker (Epifani T212 at 4 ohms) using just one channel of the PLX. This was a big stage with a bunch of power amps driving the PA, so I don't think the power level was dropping (especially since it went into shutdown 5 times.
I checked the clip lights while playing and I was running it conservatively (maybe two green lights on, definitely not close to clipping). It's rack mounted, and cables and speaker cable are OK.
I've used this rig for many years now without a problem, but at the gig all of a sudden I would lose power, and then about two minutes later it returned. I noticed that the front of the PLX seemed warm, although I've never checked that.
Could it be a fan? Will the other channel work if one is going into thermal shutdown?
Can I ship the amp and have QSC do a full power load and try to duplicate the problem? I really don't want to gig with this rig if it is not reliable