The Yamaha Stagepas 600i system is comprised of two 10" 2-way bass-reflex type speaker cabinets, a 10-channel, 600 watt powered mixer, and two 50' speaker cables. 10-channel mixer features 4 mono mic/line and 3 stereo line input channels; high quality SPX reverb for processing instruments or vocals; feedback suppressor; USB connector, 5V 1A, for digital connection with iPod/iPhone (updates www.yamahaproaudio.com) and allows charging of the device; independent 3 band equalizer on each channel for tonal adjustment and sound control; speaker unit LF: 10" cone, HF 1.4" compression driver Speaker model 600S; Max output power 340 W + 340 W/4 ohms @Dynamic at 1 kHz; Weight 25.4 kg (56 lbs) Speaker 10.8 kg x2 + Mixer 3.8 kg; Frequency range 55 Hz - 20 kHz (-10 dB); Coverage angle 90 degrees H, 60 degrees V; Speaker load impedance 4 ohms; Speaker connector - Phone (Unbalanced). This system is the ideal solution for a variety of small to medium size PA applications; Leave Phantom power switch off if not needed, turn the LEVEL control of channels 1 and 2 to the minimum before operating this switch, do not connect/disconnect a cable to/from channels 1 and 2 while this switch is on; Maintain adequate air circulation for mixer/amp; Two accompanying speaker stands in carry bag available (separately barcoded item): Title = OnStage SS7730B Speaker Stands; Orientation required for first-time users; Amplifier/mixer S/N: UEX 101386; B46433