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KD-AMP220
2 Ch 20 WPC @ 4 Ohm, 40 WPC @ 8 Ohm, Compact Digital Amplifier
Key Features:
- Class D 2 Channel Amplification: 20W PER CHANNEL @ 4ohm, 40W @ 8ohm BRIDGED
- Mixing: Output is a mix of microphone and the selected audio input
- Signal Processing:
- Variable volume level set for each input
- Variable volume, bass, and treble for output
- Inputs: Microphone (3-pin balanced, condenser/dynamic), 6-pin balanced stereo, 3.5mm stereo
- Phantom Power: 48V phantom power for integration with condenser microphones
- Outputs: Pre-amp line level (6-pin balanced), speaker level
- Speaker Level Output: Bridge, stereo, or mono modes selectable
- Noise gate for consistent audio levels, prevention of ambient noise
- Control: Front panel, RS-232, IR with external IR Sensor (included)
- Control System Support: Compass Control® Pro ready. Fully controllable by all IR, and RS-232 supported control systems via open API.
- Compact Size: 4.84”(W) x 3.42”(D) x 1.3”(H)
Specifications
- Frequency Response: 20Hz – 20KHz
- Signal to Noise Ratio: <80dB
- Total Harmonic Distortion: <1% @ 1KHZ, < 0.3% @ 20Khz
- Input Impedance:
- Mic: 35? with 48V phantom power applied, 10K ? without
- Line: >10K ?
- Output Impedance:
- Speaker: 4? – 8?
- Line: 50?

![]() Where to Buy
Need to find a Key Digital distributor or a system integrator? Call Sales at +1 914-667-9700 or |
![]() Need Help with System Design?
FREE Expert System Design Services for Key Digital Dealers & Resellers. Let us help: +1 914-667-9700 or |