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USB 120W Mixer Amplifier

MP120B 60W Mixer Amplifier 4 Mic&2 AUX& USB
Built in USB player
4 microphones input, 2 auxiliary inputs and 1 line output
Mic 1 input has the highest priority level muting function...

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Built in USB player

4 microphones input, 2 auxiliary inputs and 1 line output

Mic 1 input has the highest priority level muting function

Individual volume control for all inputs

Treble and Bass control

Siren trigger when short circuit, overload or overheat is detected


MP120B mixer amplifier has a wide range of output power ratings and enhanced cost effectiveness with this model: 120W. The mixer amplifier is integrated with a USB player for MP3 playback. It is design to work with high impedance (100V) speaker system. The 5-segments LED output meter is to monitor the output signal level. It is standard 19” rack-mountable with earpieces provided and only takes up to 2U of space.








Output Regulation

Less than 3dB

Speaker Output


AUX Output


Input Sensitivity

Mic 1, 2, 3, 4 : 3mV (±0.5mV) Unbalanced

Line 1, 2 : 200mV (±30mV) Unbalanced

Frequency Response

65Hz – 20kHz (±3dB)


Less than 1% at 1kHz, 1/3 rated output voltage

S/N Ration

Mic 1, 2, 3, 4 : Bigger than 80dB

MP3 Input Sensitivity

230 – 280mV

Muting Function

Mic 1 overrides other input signals with 0 to -30dB attenuation


AC Fuse, DC Voltage, overload and short circuit

Power Requirement

AC 220-240V / 50-60Hz

Power Consumption



Dimension (W × H × D)

430 × 300 × 88mm (2U)

Net Weight

9 kg


Gross Weight

6 kg


Front Panel


1. Power switch

(power indicator lighting as ON state)
For main power.
2. LED power indicator
For main power.
3. LED level meter
Indicate output level.
4. Bass control
Adjust bass response.
5. Treble control
Adjust treble response.
6. MP3 output volume control
Adjust treble response.
7. Line volume control
Adjust Line input volume.
8. Mic1-Mic4 volume control
Adjust microphone volume.
9. Mic1 input jack
Connect to microphone of unbalanced
30-600Ω with 1/4″phone plug. The muting
function is activated while the signal is
sent to Mic1.
10. MP3 Display
11. MP3 USB input jack
12. MP3 Player control button

Rear panel


1.Mute control
Adjust muting function.
2.2. Line 1 input and Line 2 input
Connect to linear source equipment.
3. Line output
Connect a recorder
4. Fan Exhaust Window
5. Speaker output 100V
6. AC fuse
Prevent the excessive AC
7. AC power Input jack
Connect to AC power sou
8. Mic2-Mic4 input jack

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