Key Digital® Compact Digital Audio Amplifier

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)

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?