2-group 4-bus sound console.
8/12/16 line access + 1 group of stereo access, special recording function 256/24Bit DSP effect device;
Built-in multi-format MP3 player with Bluetooth.
MP3 sound supply can be transferred to the stereo sound channel of the machine for tuning or mixing.
Shunt 3-segment American EQ plus IF optional, with display mute selection switch.
6-channel bus (BUS): main output + two groups + monitoring room output + recording output and return
Output of 6 different audio supplys can be completed independently without external equipment.
2-channel AUX external connection and return, 9-segment master control equalization.
100MM long stroke fader control.
Built-in 48V phantom power supply, built-in 110V-240V variable voltage working power supply

Model	SD-8-2	SD-12-2	SD-16-2
Mono input channel	8 channel	12 channel	16 channel
Mono Microphone Interface Phantom Power	+48V
Output Channel	1 stereo main output, 2 group outputs, 1 stereo monitor output, 1 CD/TAPE output and 1 recording output
Frequency response	20Hz~20KHz ±1dB
Mono channel microphone to main output maximum gain	+22dBu±2dB
Mono channel line to main output maximum gain	+22dBu±2dB
Maximum gain from stereo channel line to main output	+ 22dBu ± 3dB (optional)
Resolution	-82 dBu
Signal to noise ratio	78dB @ 1KHz 0dB
Maximum balanced output of main output channel	22dB±1.5dB
REC Maximum Unbalanced Output	18dB±1.5dB
Monitor Maximum Unbalanced Output	18dB±1.5dB
Effect Maximum Unbalanced Output	9dB/0.25W @ 32Ω 18dB @ 10KΩ 20Hz ~ 20KHz
Headphone output	≤2dB
Gain difference distortion between channels	≤0.02% @ 0dB 1KHz
Mono channel equalization	20KHz,3KHz ,500Hz,20Hz
Frequency of high frequency, medium frequency and low frequency	The frequency deviation is less than 8% and the maximum gain is ± 15dB.
Main output 9-segment graphic equalization	60Hz,120Hz,250Hz,500Hz,1KHz,2KHz,4KHz,8KHz,16KHz
Center frequency offset and gain	Indication 3dB ahead of clipping level
Main output 10-segment level indicator	+10dB +7dB +4dB +2dB 0dB -2dB -4dB -7dB -10dB -20dB
Power supply and power consumption	220V/50Hz,<70W
Weight	5.50kg	6.85kg	8.20kg
Specification size mm	120×440×440	120×556×440	120×670×440