D6574II 8-Channel Digital Conference Mixer

Name: D6574II 8-Channel Digital Conference Mixer
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● With 8 channels of signal input, automatic turning on channels with signal input, automatic or manual adjustment of channel gate action level
● Each channel can be set as a priority.
● Different input level could be chosen for each input channel based on different input device. Gain of channels could also be adjusted independently.
● With independent volume adjustment for each channel, high-performance 75Hz low frequency attenuation circuit
● With selection switch of 48V phantom power, two groups–CH1-4 and CH5-8
● NOMA (Number of open Microphone Attenuated) function: Line could automatically adjust output level according to the increase of channel usage.
● With Aux & Control interface to control external signal light or camera controller. Audio signal of channel 1-8 could be output individually to record.
● With RS-232C interface to connect with central control or external controller to control on/off of channels, powerful extension capability
● With MIC output and earphone monitoring interface. Users could turn on or turn off MIC by external controller to cut off unnecessary MIC input.
● 2U machine, easy to be installed in racks

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Introduction
Specification

D6574Ⅱ is an 8-channel digital conference mixer, which could be applied in profession sound reinforcement, public address and recording fields. Built-in priority speaker mode allows multiple microphones to speak simultaneously without interfering with each other. Nomal function allows the system to automatically adjust the output level as the gain of the channel is increased, effectively preventing the noise. It supports multiple I/O configurations to extend multiple devices. If the rear panel is equipped with an external control output terminal, the camera can be configured to make video conference system according to the control protocol. In addition, it supports multiple mixer extensions with up to 16 expansion units.

Input Impedance	MIC 7500Ω LINE 12KΩ
Output Impedance (Parallel)	MIC 300Ω LINE 32Ω
Output Impedance (Unparalleled)	AUX 16Ω
Line Output Impedance	16Ω
Standard Input Level (Unparalleled)	MIC -50dBV LINE -10dBV
Standard Input Level (Parallel)	MIC -44dBV LINE -4dBV
Standard Output Level (Unparalleled)	MIC -32dBV LINE 0dBV
Standard Output Level (Parallel)	MIC -26dBV LINE 8dB
Line Output Level	-4.4dBV
Max Gain	62dB
Frequency Response	20Hz～20KHz（-3dB)
Background Noise	-80dBV
THD (1Kz 0dB output voltage)	≤0.5%
SINAD	78dB
Phantom	+48V
Control Output Voltage	+5V
Power Supply	AC 220V/50Hz
Power Consumption	20W
Dimension (L×W×H)	483×380×88 mm
Weight	6.1Kg