BZBGEAR BG-AMPC40 40W 70V/100V 2-Channel Stereo/Mono Audio Amplifier

BZBGEAR BG-AMPC40 is a compact 40W Class-D audio amplifier with selectable 70V or 100V mono output, multiple analog/digital inputs, microphone mixing, ducking, EQ control, and RS-232/IR/front-panel control.

The BZBGEAR BG-AMPC40 is a compact 40W Class-D stereo/mono audio amplifier designed for commercial AV, distributed audio, presentation rooms, classrooms, meeting spaces, retail areas, and small installed sound systems. It provides a selectable 70V or 100V constant-voltage speaker output, making it suitable for ceiling speakers and multi-speaker distributed audio installations where long cable runs and simplified speaker wiring are required.

For flexible source integration, the BG-AMPC40 includes 2 stereo analog inputs through 3.5mm line input and RCA L/R, plus 1 TOSLINK digital audio input and 1 balanced microphone input. The microphone input supports balanced or unbalanced signals and selectable 48V phantom power, allowing use with different microphone types in presentation and voice reinforcement applications.

Built-in functions such as MIC mixing, ducking, bass/treble adjustment, and EQ control make the amplifier practical for environments where background music and microphone announcements need to work together. Control is available from the front panel, IR commands, or RS-232, while 16 IR ID codes help manage multiple amplifiers in larger installations.

Key Features

Detailed Description

The BG-AMPC40 is engineered for professional AV systems that require reliable amplification in a compact footprint. Its Class-D amplifier design provides efficient audio output while reducing heat generation, and its fanless convection cooling helps keep operation quiet in conference rooms, classrooms, studios, and control spaces. According to published specifications, the unit delivers 1 x 40W output and supports a frequency response of 120 Hz to 20 kHz.

Unlike simple desktop amplifiers, the BG-AMPC40 is optimized for installed audio. The selectable 70V/100V output makes it especially useful for commercial speaker systems where multiple speakers are connected across larger spaces. This is commonly required in background music, paging, public address, education, hospitality, retail, and corporate AV applications.

The amplifier also offers strong source compatibility. Analog sources can be connected through the 3.5mm stereo input or RCA left/right input, while digital audio can be routed through the TOSLINK S/PDIF input. For voice applications, the microphone input supports condenser, dynamic, and wireless microphone use cases, with selectable 48V phantom power and noise suppression support.

For system integrators, the BG-AMPC40 provides practical control flexibility. Volume, bass, treble, input selection, and microphone/line level controls can be adjusted from the front panel, while RS-232 and IR control allow integration into AV control systems. Its compact enclosure and included mounting accessories make it easy to deploy in racks, behind displays, under desks, or inside AV furniture.

Applications

• Commercial distributed audio systems
• Conference rooms and meeting rooms
• Classrooms and training spaces
• Retail background music systems
• Small public address systems
• Hospitality and reception areas
• Studio production and AV control rooms
• Digital signage audio reinforcement
• Ceiling speaker installations
• Presentation systems with microphone input

Technical Specifications

Sourcing Tip

When sourcing the BZBGEAR BG-AMPC40, confirm whether the required speaker system is 70V or 100V, and verify that the application needs a constant-voltage mono output rather than a low-impedance 4Ω/8Ω stereo amplifier. For installations using microphones, also confirm whether 48V phantom power and ducking are required.

Summary

The BZBGEAR BG-AMPC40 is a compact and installation-friendly 40W Class-D 70V/100V audio amplifier for commercial AV and distributed speaker systems. With analog, digital, and microphone inputs, built-in ducking and EQ functions, and multiple control options including RS-232 and IR, it is a practical solution for classrooms, conference rooms, retail spaces, hospitality audio, and small public address systems.