Korpa 
680-watt, portable PA system with 10-channel powered mixer, two 10" speakers, iPod/iPhone USB connection, SPX digital reverbs, an onboard feedback suppressor and versatile EQ.
680W (340W + 340W) power output
Newly designed high quality speakers (LF:10" woofer/ HF:1.4" voice coil compression driver)
Detachable 10-channel mixer (4 mono/line + 6 mono / 3 stereo line)
iPod/ iPhone USB connection
1-Knob Master EQ™ with virtual bass boost
High resolution SPX digital reverbs (4 types, parameter control)
Onboard feedback suppressor
Great-sounding 3-band channel EQ
Switchable stereo/ mono inputs
Hi-Z (high impedance) inputs
Phantom power
Monitor and Subwoofer outputs
Optional reverb footswitch