Guangzhou DSPPA Audio Co., Ltd.
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Email: export@dsppa.com
Tel: 020-28346138
Fax: 020-81305947

MK6925 2×250W Stereo Pre-amplifier

Features

● With 4 microphone inputs with options of balanced or unbalanced input.
● With 3 audio (stereo) inputs, and 2 audio (stereo) outputs. With volume and bass and balance adjustment for audio input;
● Can play MP3 by USB.
● With master volume adjustment;
● With rated power 2×250W/8Ω for each channel when one channel runs alone;
● With DC output protection, overload protection, short circuit protection and overheat protection for power amplifier;
● With individual level and protection indicators for the Left channel and Right channel;
● MP3 infrared control

  • Introduction
  • Specification

MK6925 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.

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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  • Tel:+86 020 37166520
  • Email:export@dsppa.com
  • Address:No.1 Xiahe Rd, Jianggao Town, Baiyun District, Guangzhou, Guangdong, China
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