Nady SPM-6600 6-Channel Powered Amplifier SPM6600 6 balanced or unblanced XLR mic inputs and 6 balanced or unbalanced 1/4" TRS mono line inputs Dual 300 watt (@4 Ohms) amplifiers can be switched to power stereo, or mains and monitor speakers Variable fan cooling Temperature limiting Short circuit current limiting Speaker DC protection circuits L/R Protect LED warning indicators for utmost safety and reliability Power ON/OFF anti-thump circuit for quietest operation Built-in DSP (Digital Sound Processor) for ECHO (REVERB) with 16 natural sounding selectable preset level Echo intervals and separate Effects Send and individual channel Effects Return controls, and numeric LED display Each channel includes stereo pan, level, and DSP/Aux effects controls, 3 band EQ and input signal 20dB pad switches 7 band stereo master graphics EQ's Selectable global 48V phantom power on XLR mic inputs 5 LED stereo level display with switchable level meter (L-R/Main-Monitor) Left, Right and Main Master, and Monitor Out level controls All level controls have center detents Rugged road carrying case with reinforced corners and carrying handles for long life and easy portability