- MA3912
- MA3912 2×120W Professional Stereo Mixer Amplifier
* 4 MIC inputs with options of balanced or unbalanced, independent volume control
* MIC inputs have ECHO effect and DELAY effect, 7 balanced adjustment
* MIC 3/4 with phantom power (+48 V power supply)
* 3 audio (stereo) input, 2 audio (stereo) output, REC output.
* Treble, bass and balance adjustment, master volume control
* Remote control for MP3 playing, select program, adjust volume, repeating mode and EQ mode;
* With protection of DC output, overload, short circuit and overheat ;
* With individual level and protection indicator for Left channel and Right channel;
* Ideal for small conference room, lecture hall and background music etc.
Description:
MA3912 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.
Specification:
Model
MA3906
MA3912
Microphone input sensitivity
5 ± 0.5mV
Line input sensitivity
250 ± 50mV
MP3 input -10dB / 1KHZ sine wave
Output 23V
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
AC220-240V / 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
Dimension (L × W × H)
520mm×395mm×170mm
Gross weight
9.5kg
10.15kg
Net weight
7.5kg
8.15kg
