MK6906 2×60W Stereo Pre-amplifier with USB

Name: MK6906 2×60W Stereo Pre-amplifier with USB
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● 2 stereo outputs for 8Ω speaker
● 4 Mic inputs, Mic 3 & Mic 4 with phantom power 48V
● Support MP3 play by USB
● 3 stereo AUX inputs with bass/treble
● 1 AUX output for power extension
● 7-band equalizer adjustment
● Echo, delay, repeat and audio recording
● Power supply: AC220V/50Hz
● Two modes:select program, adjust volume, and select repeating mode and EQ mode

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Introduction
Specification

MK6906/MK6920 amplifier integrates balancing function and pre-amplifier and post amplifier. The series is equipped with three sets of stereo sound source input ports, four microphone input ports, a stereo line output ports, a recording output port and two groups of amplifier output terminals. Volume of three-way stereo sound source channels can be controlled independently cooperating with function of “choose 1 out of 4”. Volume of four microphones can be controlled independently. There is also a master volume control knob on the front panel. Equipped with seven equal sections, output volume is adjustable.

This product is more user-friendly designed. It adopts innovative technology and produces powerful, beautiful sound. Its functional operation is clear at a glance. At the same time, the product is designed for conference, sound volume is adjustable. Besides, it has multiple protection and enough function, stable and suitable for conference, background music, Karaoke, audio-visual and family engineering support.

Model	MK6906	MK6920	MK6925
Microphone input sensitivity	5 ± 0.5mV		4.5±0.5mV
Line input sensitivity	250 ± 50mV
MP3 input -10dB / 1KHZ sine wave	Output 23V	Output 32V	Output 45V
Line output voltage	950 ± 150mV
Total harmonic distortion	≤0.5 (1KHz, normal working conditions)
Line frequency response	20-20k Hz (± 3dB)
Microphone frequency response	80-20k Hz (± 3 dB)
Microphone 7 balanced	64HZ: ± 12dB
	160HZ: ± 12dB
	400HZ: ± 12dB
	1KHZ: ± 12dB
	2.5KHZ: ± 12dB
	6.4KHZ: ± 12dB
	15KHZ: ± 12dB
Line input and MP3 tone adjustment range bass	100Hz: ± 12dB
Treble	10KHz: ± 12dB
Signal to noise ratio (8Ω output)	≥75dB
Working power supply	AC220/ 50Hz
Phantom voltage	+ 48V
Rated power consumption	8Ω 60W	8Ω 120W	8Ω250W
Protective function	Overload, over temperature, short circuit
Dimension (L × W × H)	483x 310x 88 mm
Package dimension (L × W × H)	520mm×395mm×170mm
Gross weight	9.5kg	10.15kg	7.6kg
Net weight	7.5kg	8.15kg	5.6kg

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