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MK6920 2x10W Stereo Conference Mixer Amplifier
With 4 microphone inputs with options of balanced or unbalanced input. Each microphone's volume can be adjusted alone. The microphone input supports echo effect. Microphone input has 7 balanced adjustment. 2 microphone inputs (Mic 3& Mic4) with phantom power supply....

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Features
With 4 microphone inputs with options of balanced or unbalanced input. Each microphone's volume can be adjusted alone. The microphone input supports echo effect. Microphone input has 7 balanced adjustment. 2 microphone inputs (Mic 3& Mic4) with phantom power supply.
With 3 AUX (stereo) input, 2 AUX(stereo) output. With volume and bass and balance adjustment for audio input;
With 3 AUX inputs and 1 MP3 input, they can be selected as the audio source
Can play MP3 by USB. Can switch between two modes, select program, adjust volume, select repeating mode and EQ mode;
With master volume adjustment;
With rated power 2×120W/8Ω;
With DC output protection, overload protection, short circuit protection and overheat protection;
With output level and protection indicators for two channels

Description
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.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 OK, audio-visual and family engineering support.

Front Panel

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1. POWER
2. MIC1\2
Mic signal input port with independent volume control.
3. MIC volume 1\2\3\4
Each mic is with independent volume control. Turn clockwise to increase the volume and turn counterclockwise to decrease the volume.
4. ECHO
Adjust the echo volume and the ratio between echo and the direct sound to better the effect.
5. DELAY
Can control the delay time. It's the best to put switch to the middle position.
6. REPEAT
For controlling frequency of echo repeating. It's the best to put switch to the middle position.
7. BASS
Clockwise adjustment for lifting, counterclockwise adjustment for decreasing
8. TREBLE
Clockwise adjustment for lifting, counterclockwise adjustment for decreasing
9. BALANCE
Control the sound image position of the main channel and adjust the audio and video balance to its best.
10. AUX volume adjustment (master volume)
The button is for adjusting three channels'volume (channel 1/2/3). The object adjusted depends on the selected channel.
11. Output volume level indicator
If the 4th and 5th indicator is lighted, it means the output gets tip distortion. Then you should adjust the volume to turn it down and the 4th and 5th indicator will flash.
12. 12.7 segment equalization adjustment fader
Slide the fader up to raise the amplitude of the band, and slide the fader down to attenuate the amplitude of the band.
13. MP3 player
MP3 program sequence display.
14. USB port
Connect to the audio device and turn on the power. Select the MP3 channel source on the panel, insert the USB interface in the USB program USB and the machine will automatically start playing.
15. MP3 playing control buttons
Those buttons are play/pause, the previous one/the next one
16. Channel selection button and indicator
Press the button to choose a sound source (AUX1、AUX2、AUX3、MP3)to play. Indicator of selected sound source will light up.
17. Master volume control
Turn clockwise to increase the volume and turn counterclockwise to decrease the volume.

Rear Panel

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1. Power socket
Connect to~220V/50Hz/6A power. Don't plug or unplug it when it's powered on.
2. Fan window
3. Amplifier L output port: can connect to multiple speakers. Total resistance should be no less than 8Ω.
4. Amplifier R output port: can connect to multiple speakers. Total resistance should be no less than 8Ω.
5. Recording output
Can connect to peripheral equipment for audio recording.
6. Line output
For connecting to peripheral amplifier as aux line output port.
7. Audio input port
3-line audio stereo input. Can expand the local source input. Can connect to local DVD/radio. Note: Those 3-line output and MP3 can't be output together. Only one-line output or MP3 can be output.
8. MIC4 input port
9. MIC3 input port
10. +48Vphantom power switch
Turn the switch to “ON” and the +48V phantom power for the mic will be on. Turn the switch to “OFF” and the phantom power will be off.
When supporting the use of condenser microphones:
When using the condenser microphone, please turn the switch "PHANTOM" to "ON" position.
When using the moving coil microphone, please turn the switch "PHANTOM" to "OFF"

Specification

Model

MK6920

Microphone input sensitivity

5 ± 0.5mV

Line input sensitivity

250 ± 50mV

MP3 input -10dB / 1KHZ sine wave

Output 31V

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 Band EQ Adjustment

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

AC220-240V / 50-60Hz

Phantom voltage

+ 48V

Rated power consumption

8 Ω 120W

Protective function

Overload, over temperature, short circuit

Dimension (L × W × H)

483x 310x 88 mm

Gross weight

10.15kg

Net weight

8.15kg

Specifications are subject to change without notice.


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