A nice Sunday for all of you And I have the problem, as already described in the title, that switches my mac-audio power stage to protect in warm weather and also gets quite hot. From this I now simply connect with the heat protection circuit. But the problem exists only since last week. I only changed the power stage so that the power stage is no longer in the case room but is mounted on the rear seat and I set the radio differently, (Before amplifier from SW, lpf on 80hz) because the power amplifier is probably not in a position to separate the frequency properly and my woofer has always loaded with the full pallet of frequencies. The radio setting also fell into my hands out of chance because I wondered why on the preamplifier output one time rear and once SW stood For this I put my cables still properly and let them disappear. and gets so warm, I went through the typical tips again. So mass point is laid, fuses are looked through, checkers are cleaned and examined for corrosion. But it was all right. :/ It can’t be on the cables because I just laid them out of the packaging. I got a multimeter and measured at the battery and at the power stage and the following came out of dabai: -empty voltage on battery like stage motor off: 12.5V motor on: 14V +- 0,3V -in operation without signal motor off: 12,5V motor on: 14V + – 0,3V the same with signal in normal operation with break-ins of max 0,2V -under full load after approx. 30 min. Engine on one break down to 11,78V max 12.2v!!!! -remote constant at almost 12V + cable goes along the driver’s side, minus goes to the screw of the belt buckle under the rear seat. Chinch and remote goes along the passenger side, but 2 separate cables. the woofer is always on ch1u. Ch2 gebr ückt und jeweil aud ch3 u.ch4. What could this have to do with am slow really stunned :/ or is the level just so miserable that it constantly overheats itself? Or does it solve it so that I have to change the wedgerimen times and thus the lima doesn’t come after it? Already many thanks for helpful answers more parts stand in the signature.