2-Channel 40W 4/8 Ohms Stereo/Mono Audio Amplifier

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The BG-AMP2X20 is a versatile and compact bridgeable digital stereo amplifier (Class-D). Perfect for installations with limited space, it can be operated in three different configurations. In stereo configuration the amplifier outputs 2x20 watts at 4 Ohms. The selector switch also allows for dual-mono operation for distributed audio applications. In bridge-mono configuration it can double the output to 40 watts at 8 Ohms.

Inputs include 1 x stereo RCA, 1 x 3.5mm, and a microphone input with switchable 48v phantom power. Bass, Treble, volume level, and input selection are all controllable via the integrated buttons on the bottom panel, IR remote control, or RS-232.

The features and performance combined with its compact form factor make this amplifier the perfect solution for situations that don’t allow a full-sized amplifier.


  • Microphone Input
    3-level Mic input with mixer function
  • Amplify Your Sound
    Outputs Stereo 20Watt@4 Ohms or bridged mono 40Watt@8 Ohms
  • Compact
    Small form factor ideal where full-sized amplifiers will not fit
  • Multiple Control Options
    Take control using RS232, IR, or push buttons
  • Durable
    Metal enclosure designed to last for years
  • Bass, Treble, & Volume
    Control bass, treble and volume levels conveniently using integrated push buttons
  • 2 switchable analog audio inputs
  • Loop output to cascade to another PA2B
  • Locking power adaptor


BZBGEAR BG-AMP2X20 Bridgeable Mini Digital Stereo Amplifier Perfect for Limited Space Installs
BZBGEAR BG-AMP2X20 Bridgeable Mini Digital Stereo Amplifier Perfect for Limited Space Installs

Tech Specifications

Audio Input
Input 2x stereo audio, 1x MIC
Input Connector 2x RCA, 1x 3.5mm jack, 1x pluggable terminal block (3P, 3.81mm)
Input Impedance >10KΩ
Audio Output
Output 1x amplifier, 1x stereo audio
Output Connector 1x 3.5mm jack, 1x pluggable terminal block (4P, 5.08mm)
Output Impedance 50Ω/stereo, 4~8Ω/Amplifier
Audio General
Frequency Response 20Hz ~ 20KHz
SNR 80dB at maximum output
Stereo Channel Separation >75dB@20Hz to 20KHz
Voltage Gain 32dB
CMRR >70dB@20Hz ~ 20KHz
Bandwidth 20Hz ~ 25KHz
THD + Noise 1%@1KHz, 0.3%@20KHz at nominal level
Power Output 2x20 Watts (4 Ohms)
Control Function
RS232 Control 3-hole phoenix connector
IR Remote Optional IR remote
Panel Control Optional button control


  • 1x Mini Digital Amplifier (the mounting ears and Mini Digital Amplifier are as a whole)
  • 2x Pluggable Terminal Blocks
  • 1x RS232 Cable
  • 1x Power Adapter
  • 1x Power Cord
  • 4x Plastic Cushions
  • 1x User Manual


  1. Mic: Balanced Mic In.
  2. 48V/Mic/Line: Input mode 48V/Mic/Line.
  3. Stereo/Mono/Bridge: Output mode Stereo/Mono/Bridge.
  4. IR: IR Receiver.
  5. RS232.
  6. Input 1 L/R: L/R Audio RCA Line In 1.
  7. Input 2 L/R: L/R Audio 3.5mm Line In 2.
  8. Power LED.
  9. Power DC 24V.
  10. Loop Out: Line audio output at 3.5mm jack, with volume controllable.
  11. Out: 2x20 Watt @ 4 Ohm / 1x40 Watt @ 8 Ohm Out.