Main features:

• SPX Digital Effects
• Built-in Graphic EQ
• Stand-by Mode
• 12 Inputs (4 mono/4 stereo)
• High Power For Main and Monitor Speakers
• Durable, Lightweight Design
• Yamaha Speaker Processing 
• One-knob Compression on Mono Channels (EMX312SC & EMX512SC only) 
• Feedback Channel Locating (FCL) System 
• Lightweight : 10 kgs.
• Rack Mount Adaptor RK512 All models in this series can be rack-mounted using an optional rack-mounting kit for optimum integration with any system or installation.
• Maximum Output Power 500w/4 ohms 350w/8 ohms (UA) 320w/8 ohms (H)
• Input Connectors: CH 1-4: XLR and Phone CH 5/6, 7/8: XLR and Phone CH 9/10, 11/12: XLR and Pin
• EQ: HIGH, MID, LOW
• Phantom Power 15 V
• Graphic Equalizer 7 Band (125, 250, 500, 1 k, 2 k, 4 k, 8 kHz):
• Main (Stereo) and Monitor Digital Effects SPX Digital Multi Effector (24 bit AD/DA, 32 bit Internal Processing): 16 Programs