Features

SMT process circuit design, powerful and complete functions, beautiful sound quality, clear treble, shocking bass;
14 (SD-16-4) or 22 (SD-24-4) or 30 (SD-32-4) microphone and line inputs with effect return;
2 stereo channel inputs; 2 stereo external effect signal inputs;
USB recording, playback function, each channel has independent monitoring function, with Bluetooth function
Independent four marshalling outputs, 2 auxiliary outputs, 2 effect outputs;
Built-in 24/24 Bit DSP effector, output channel 9-segment balance adjustable;
4-segment EQ control per channel
The microphone input interface has 48 V phantom power supply, which can directly supply power to the phantom microphone;
External power adapter with low noise design;
Equipped with LED DJ light.

Technical parameters

Model	SD-16-4	SD-24-4	SD-32-4
Microphone and line inputs with effect return	14 channel	22 channel	30 channel
Stereo input channel	2 channel	2 channel	2 channel
Stereo external effect signal input	2 channel	2 channel	2 channel
Mono Microphone Interface Phantom Power	+48V
Output Channel	4 marshalling output; 2 auxiliary outputs; 2-channel effect output;
Frequency response	20~20KHz ±0.5dB
Mono channel microphone to main output maximum gain	56dB±2dB
Mono channel line to main output maximum gain	36dB±2dB
Maximum gain from stereo channel line to main output	26dB±2dB
Channel crosstalk	≥90dB @ 1KHz
Signal-to-noise ratio (weighted)	83dB @ 1KHz 0dB
Maximum balanced output of main output channel	25dB±1.5dB
Auxiliary maximum unbalanced output	19dB±1.5dB
Maximum unbalanced output of CD/TAPE	19dB±1.5dB
Effect Maximum Unbalanced Output	19dB±1.5dB
Headphone output	12dB±1.5dB @ 1KHz 32Ω
Channel to channel gain difference	≤2dB
Distortion	≤0.02% @ 0dB 1KHz
Mono channel equalization
Frequency point range of high frequency, sweep frequency, intermediate frequency and low frequency	12KHz,110Hz~8KHz ,80Hz
Center frequency offset and gain	The frequency deviation is less than 8% and the maximum gain is ± 15dB.
Stereo channel equalization
Frequency point range of high frequency, medium high frequency, medium low frequency and low frequency	20KHz,3KHz ,500Hz,20Hz
Center frequency offset and gain	The frequency deviation is less than 8% and the maximum gain is ± 15dB.
Main output 9-segment graphic equalization Center frequency point	60Hz,120Hz,250Hz,500Hz,1KHz,2KHz,4KHz,8KHz,16KHz
Frequency deviation and gain	± 15dB error 2dB, frequency deviation ≤ 8%
	Two 21 DSP effects: HALL, ROOM, PLATE, AMBIENT, GATED, REVERS, VOICE, DEL & REV, ECHO 40,
Effector	ECHO 50,DELAY,CHORUS,CHO&DEL,CHO&REV,FLANGER,FLA&DEL,FLA&REV,TREMOLO,
	TRE&REV,WAH WAH,WAH&REV
Channel clipping indicator	Indication 3dB ahead of clipping level
Marshalling and main output 10-segment level indicator light	+10dB +7dB +4dB +2dB 0dB -2dB -4dB -7dB -10dB -20dB
Power supply and power consumption	220V/50Hz,<100W
Product size mm	120×650×450	120×860×450	120×1070×450
Net weight	8kg	11.5kg	14.2kg