Smarter Unit

MR + e series is a dual-channel, cost-effective, and multi-functional digital amplifier, suitable for different applications.

Output power at 8 ohm loading can cover from 250W to 1200W. Simple interior design and compact height in 2U, the full range of weight at 6.3kg, subverted people's conception toward the dimension and weight of professional amplifier.

Higher Efficiency

MR + e Series digital amplifier with such a small size and so light weight is because of its integration with the most advanced high-efficiency,

 high-fidelity digital amplifier technology and high efficiency, 

low interference soft switching power supply technology Compact design coupled with strict quality control ensures the stability of MR + e Series digital

amplifier when working in complex operating environment.

More Accurate Sound

Crystal clear high frequency, tight and strong low frequency, accurate sound reproduction,

professional design ensure great specifications such as distortion, frequency response, convert rate,

power supply band width and damping factor. Pulse width modulation converter works like a high frequency signal sampler, 

convert varying vibration amplitude (sound) signal to equal pulse sound signal then output,

this MR series amplifier adopts higher frequency convert to obtain high resolution of sound signal.

More Comprehensive Protection

This Series amplifier can prevent from and correct every possible fault, 

can supply powerful output, 

safely working and long time reliability.

1.Intelligent temperature controlled fans

The amplifier’s intelligent temperature-control circuit can detect actual temperature and constantly adjust fan speed accordingly to keep the amplifier at good working status and the fan

running at low noise for long time reliability meanwhile enough for amplifier cooling.

2.Temperature Protection

Because the environment temperature may be too high or not good for amplifier cooling, 

the amplifier’s MOS-FET may be at high temperature which the protection circuit can detect: when the temperature is over high, the output power will be decreased, 

THERMAL led on the front panel faintly lights up; when the temperature is higher than that the amplifier can bear,

the over-temperature protect will be activated to cut off the amplifier’s output, THERMAL led on the front panel becomes highlighted. After the temperature gets down, the amplifier will automatically resume work.

3.Short-circuit, Over current Protection

When the output load is lower than rated impedance or short circuit, output current exceeds the max limit, 

the protection circuit will be activated to cut off the amplifier’s output, get into protection status. 

3 or 5 seconds after short-circuit failure is removed, the amplifier will automatically resume work. In protection status FAULT led becomes lighting-up.

4.Direct Current Protection

In case of interior components failure, direct current goes to the output of the amplifier, instantly the protection circuit will cut off power supply of all channels to protect the loudspeakers.

When the input voltage is over the permitted range, the amplifier will get into protection status till the input voltage gets into normal range.

Different Mode Selection

Three working mode can be set up with ‘STEREO / BRIDGE / MONO’ switch on the rear panel.

Key Specification

rated output power(EIAJ THD=1%,1kHz）

8Ω/ stereo:200W

4Ω/ stereo:375W

16Ω/BRG:400W

16Ω/BRG:750W

RM output  voltage (THD=1%,1kHz):44.7V

voltage gains:33.0dB

Rising slope (1kHz, bypassing low-pass filter):50V/us

Frequency response (10% rated output power, 8Ω, 20Hz  - 20 kHz):0～-1 dB 

Input impedance:20KΩ（balance)  ，10KΩ（unbalance) 

Damping factor (8Ω, 20 Hz -100 Hz):≥300 

Signal  Noise ratio (A  weight, 20Hz -20kHz):≥100dB 

Power supply:220VAC (±10%)， 50/60 Hz 

Protection function:Overheat protection, overload protection, output DC protection, temperature-power control 

Size(W×H×D):483×88×255mm 

Net weight(KG):6.3kg