Guangzhou DSPPA Audio Co., Ltd.
Tel: 020-28346138
Fax: 020-81305947

MK6906 2×60W Stereo Pre-amplifier with USB


● With 4 microphone inputs that can be balanced or unbalanced, independent volume adjustment of each microphone, with mixing processing function and 7 equalization adjustment for microphone input, with phantom power supply available (+48V)
● With 3 audio (stereo) input, 2 audio output, with volume, bass, treble and equalization adjustment for audio input
● With audio source selection to select between line input and MP3. Audio from three ways and MP3 cannot be output simultaneously. Only one channel or MP3 can output once.
● Can play MP3 by USB. Can switch between two modes, select program, adjust volume, and select repeating mode and EQ mode
● With master volume adjustment
● MK6906, with rated power 2×60W/8Ω (when working alone, the power of each channel is 60W/8Ω; when both channels work simultaneously, the power is 40W/8Ω);
● MK6912, with rated power 2×120W/8Ω (when working alone, the power of each channel is 120W/8Ω; when both channels work simultaneously, the power is 80W/8Ω);
● MK6925, with rated power 2×250W/8Ω (when working alone, the power of each channel is 250W/8Ω; when both channels work simultaneously, the power is 250W/8Ω);
● With DC output protection, overload protection, short circuit protection and overheat protection
● With output level and protection indicators for two channels
● Infrared remote control of MP3

  • Introduction
  • Specification

MK6906 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.3-way stereo sound source channels’ volume can be controlled independently cooperating with function of “choose 1 out of 4”. Four mics can be controlled independently. Volumes of amplifier output are controlled together. 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.





Microphone input sensitivity

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


10KHz: ± 12dB

Signal to noise ratio (8Ω output)


Working power supply

AC220/ 50Hz

Phantom voltage

+ 48V

Rated power consumption

8Ω 60W

8Ω 120W


Protective function

Overload, over temperature, short circuit

Dimension (L × W × H)

483x 310x 88 mm

Package dimension (L × W × H)


Gross weight




Net weight




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    • Address:No.1 Xiahe Rd, Jianggao Town, Baiyun District, Guangzhou, Guangdong, China
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