Parasound Halo A52 keeps shutting off / protection
Hi guys, I hope someone could shed some light on this before I take it in for repair. I have a Parasound Halo A52 that's been running great driving a pair of Martin Logan Theos. Recently the amp suddenly started going into protection mode / shuts off in the middle of listening. I checked everything, wires are not short, and settings are correct. I spoke to someone at Chicago Audio who told me that the caps may need to be replaced. While this is not an issue, i just want to make sure that this issue is common and I won't end up spending money and not be able to fix it.
One thing I should mention is I am using RCA terminals on the preamp side and XLR connectors on the amp side. Could that be the problem? Should I try using just a simple RCA cable to see if the problem goes away?
Hi thanks for the advice. I'm using all 5 Channel, the MLs are bi wired plus an extra sub. I have an external fan and when I touch the unit it's not very hot. For some reason one side does feel hotter than the other.
Another thing to try is to see if the amp will sit for hours on end with no input applied. If the preamp has a malfuction and is presenting a slight amount of DC to the amp, it could trip the protection circuit.