Pre-amp tripping breaker on power amp
I have a luxman l-480 integated. When I use a Quicksilver line stage into the power amp-in jacks, it periodically trips a breaker and the amp geos dead for about 20-40 seconds. It always comes back on, and does this evan when the volume is "off".
The pre-out on the luxman has unusually low gain for an active. Lower than a passive with 1.8 mv going into it.
What would possibly cause a circuit to shut down, evan with "0" gain into it? (note the Quicksilver has it's attenuater before the gain stage)