A sound mixer is a device which takes two or more audio signals, mixes them together and provides one or more output signals.
As well as combining signals, mixers allow you to adjust levels, enhance sound with equalization and effects, create monitor feeds, record various mixes, etc.
Mixers come in a wide variety of sizes and designs, from small portable units to massive studio consoles. The term mixer can refer to any type of sound mixer; the terms sound desk and sound console refer to mixers which sit on a desk surface as in a studio setting.

3-band active EQ
1 AUX sends,level,1 AUX retrns
60mm long-wearing logarithmictaper fabers
16 level delay of the effect system inside
2 X 7 band EQ on all stereo output
+48V phantm power supply
1 Stero power output 2 X 250W/4Ωor2 X380W/4Ω
16-channel ultra-low noise compact mixer with highestpossible headroom2

Specification:
Channel:16
Channel EQ :3band
AUX : 1
Return: 1
Effects:16 DSP
Main EQ:7band
Main Out:1 Stereo
Phantom Power : 48V DC
Power Output: 220W～350W (4Ω)
USB Player: Optional

Peak LEDs on all mono channels
Highly accurate 10 segment bargraph meters
16 level delay of the effect system inside
+48V phantom Power supply
1 AUX send per channel for external effects and monitoring
Ultra-musical 2-band EQ on all channels and 2 X 5 band EQ on all stereo output
8 mono input channels with gold plated XLRs and balanced line inputs

Specification:
Channel:8 Mono
Channel EQ :3 Band
Return : 1
Effects: 16 DSP
Main EQ:7 Band
Main Out:1 Stereo
Phantom Power: 48V DC
Power Output: 4Ω 250W
USB Player : Optional

Optional 12-channel input
Equipped with XLR inputs and switchable LINE
All channels feature 3-band EQ
Offer switchable +48 V phantom power
With a low-cut keys and AUX auxiliary output mainline
Balanced / unbalanced record and playback connectors
With USB interface

Specification:
Crosstalk attenuation:>-82dB : 30Hz~600Hz
Frequency Response: + /-0.5dB 20Hz-20kHz
THD: lass than <0.03% @ 1kHz
Microphone input level: +16 dBu
Line Maximum input level: +30 dBu
Stereo Maximum input level: +20 dBu
Headphone Output: (200Ω) 300mW
Other output: +20 dBu