DVDO 2x20W Class-D Audio Amplifier with 3 Inputs

DVDO-AA2x20W-1 is a compact Class D stereo audio amplifier ideal for small to medium-sized AV environments, including classrooms, meeting rooms, small venues, bars, restaurants, and digital signage systems.

It offers two analog audio inputs (1 x stereo RCA and 1 x 3.5mm) plus a microphone input with switchable 48V phantom power and an integrated mixer function.

The amplifier supports three output configurations: Stereo (2x20W @ 4Ω), Mono, and Bridge (1x40W @ 8Ω), with adjustable bass, treble, volume and input selection controls.

Operation is flexible, with control options via front panel buttons, IR remote or RS-232.

Features:

• High-efficiency Class D amplification with low heat generation and reliable operation 
• Compact design suitable for rack, wall, ceiling or under-table mounting
• Two analog audio + one microphone switchable inputs with mixer function
• Balanced/unbalanced MIC input supports 48V phantom power, dynamic and wireless microphones
• Switchable output modes: Stereo 2x20W @ 4Ohm (default), Dual Mono or Bridge 1x40W @ 8Ohm
• Loop output for signal pass-through or daisy-chaining
• Noise gate: automatically mutes the output when no input signal
• Independent volume, bass and treble control
• Control via front panel buttons, IR & RS232

Audio Input

• Input: (2) Stereo Audios, (1) MIC
• Input Connector: (2) RCA, (1) 3.5mm Jack, (1) Pluggable Terminal Block (3P, 3.81mm)

Audio Output

• Output: (1) Amplifier, (1) Stereo Audio
• Output Connector: (1) 3.5mm Jack, (1) Pluggable Terminal Block (4P, 5.08mm)

Audio Performance

• Input Impedance: >10kΩ
• Output Impedance: 50Ω Analog Output; 4/8Ω Speaker Output
• Maximum Rated Power Output: 2x20 watts (4 Ohms)
• Frequency Response: 20Hz ~ 20kHz
• Common Mode Rejection Ratio (CMRR): >70dB@20Hz~20kHz
• Signal to Noise Ratio (SNR): 80dB (Max)
• Total Harmonic Distortion + Noise (THD+N): 1% at 1kHz; 0.3% at 20kHz at Nominal Level

General

• Power Supply Input Voltage: 100-240v AC at 50/60 Hz
• Power Supply: 24V DC at 2.71A
• Maximum Power Consumption: 45 watts
• Operation Temperature: 0℃ ~ +40℃
• Storage Temperature: -10℃ ~ +60℃
• Storage Humidity: 10%-90%
• Dimensions (W*H*D): 123mm x40mm x87mm
• Net Weight: 720g

• 1x Mini Digital Amplifier
• 2x Pluggable Terminal Blocks
• 1x RS232 Cable
• 1 x Power Adapter
• 1x Power Cord
• 4x Plastic Cushions
• 1x User Manual