A compact 4 channel matrix mixing amplifier Previous page


The BMA-MAT4120 is a 4 channel mixer amplifier with four power outputs of 120W.

The inputs and outputs can be matrix selected, thus it is a high integrated 4 channel audio matrix system solution with Mp3 player for hotel, shopping mall, sports center,entertainment center, etc.

Each inputs could be easily designed to different four zones by front panel selector, moreover each inputs are supplied with separate bass, treble and volume control for precise sound effect for each area.

Three Combo Mic/Line inputs with selector and phantom power, thus the microphone input support both phone jack and XLR type. Two RCA type line inputs, built-in Mp3 player on front panel, one tel input and one RJ45 port for a remote paging microphone BPC-4.

A RS232 serial communication port is supplied for third party system communication. A priority input could be used to override all other inputs. A monitor is also built-in for in room monitoring use. 4 channel separate line inputs and speaker outputs are provided for easy wiring. 70V, 100V and 4 Ω speaker outputs all are supplied for versatile sound loudspeaker matching. Extensive protection functions from thermal, short-circuit, clip and Overload. FEATURES

* Four channel amplifier in a 3U 19” rack mount design

* All source inputs could be matrix assigned to different 4 zones outputs simultaneously

* The 5 channel inputs & MP3 input are designed with separate bass, treble and volume control

* Three microphone/line inputs with phantom power and gain control

* Two aux inputs by RAC with gain control

* Mp3 player with SD and USB inputs, separate power supplied module

* One 4 zone remote microphone input by RJ45 port

* Four channel line inputs and speaker outputs

* Versatile speaker outputs for each four channels: 70V, 100V and 4 Ω

* A RS232 serial control port for third party system communication

* A priority input to override other inputs

* Input priority level from high to low: remote mic, priority input &Tel input & Mic1

* Built-in monitor with volume control

* Extensive protection of thermal, short-circuit, clip and overload with indicators

* With ground lift switch


19" (483mm wide) rack mountingYes
Height- Rack units (1U = 44mm)3U (132mm)
Depth (Built in)440 mm
Depth (incl. front)465
Output channels4
Output power4x120W
Speaker Zone 1~5 Output120W MAX
Speaker Outputs70V, 100V & 4Ω
Monitor Output1W /8Ω
Input Sensitivity & ImpedanceCH1,CH2,CH3: MIC: ±2.5mV/600Ω / PHANTOM: ±2.5mV / LINE:~175mV/10KΩ balance input / CH5~6: 350mV/10KΩ balance input / TEL: 350mV/10KΩ / REMOTE MIC: ±387mV/10KΩ
Tone ControlBass: ±10dB at 100Hz / Treble:±10dB at 10KHz
S/N Ratio≥ 65dB
LINE 1-4 Output1V/ 600Ω (Balanced)
Frequency Response (±3dB)80-16KHz (0/-3dB )
MP3Support MP3 format, max capacity of 32GB
SD InputFAT16 & FAT32, support disk one zone, do not support folder, Supports up to 2G-1 bytes as the file size. The maximum number of playable files is 65534. Sorts and plays up to 100 files in the order of UNICODE
MP3 FormatSupports MPEG audio 1, 2 and 2.5. Supports Layer 1, 2and3 Supports sample rates 8k, 16k, 32k, 11.025k,22.05k, 44.1k, 12k, 24k and 48kHz Supports bit rate 8 to 320 kbps and VBR (Variable Bit Rate).Except free format.
RS232 PortYes,
MIC Inputs3 pcs Balanced XLR with Phantom Power & Gain control
RJ45 PortYes for BPC-4, 4 zone remote microphone
Phantom Power+48V
Line inputs2 pcs Dual RCA Unbalanced
Line Output4 pcs Balanced Euroblock
Volume input controlCH 1-5 & USB/SD
Volume output controlEach 4 zone output
Treble and bass controllMIC1-4 and Line1-2
Priority InputYes
Tel InputYes
Priority InputYes to override other inputs
Input Priority Level From High To LowRemote Mic, Priority Input &Tel Input & MIC1
MonitorYes, build in
CoolingFan automatically start up when temp reaches 55℃
ProtectionHigh temp, overload & short-circuit
Power Supply~230V/50Hz
Power Consumption750W
Main Construction MaterialPanel: aluminum plate / Case: steel plate
Weight11,7 Kg


Technical Sheet BMA-MAT41200.38 MB - pdf
Technical Drawing BMA-MAT41200.25 MB - pdf
More info

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