... 55°C. Complete protection system includes power on, overheat, short circuit and overload.Features* Class-D power amplifier for ... & 500W by one, two and four channels* 19, , rack mount design of 2U height* Switch power technology for less power consumption but ... 20KHz, 0dB, -3dB, 100VProtection Over temp ≥80°C, overload, short circuitCooling Method Fan forced coolingOperation Temp+5°C ~ +40°CStorage ...