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Key Digital KD-AMP220 2-Channel Compact Digital Amplifier

BH #KEKDAMP220 • MFR #KD-AMP220
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Key Digital KD-AMP220 2-Channel Compact Digital Amplifier
Key Features
  • 20W per Channel at 4 Ohms
  • 40W at 8 Ohms Bridged
  • Input for Condenser/Dynamic Mic
  • 48V Phantom Power for Condenser Mics
Designed for speech reinforcement in classrooms, conference rooms, and other small- to medium-size venues, the KD-AMP220 from Key Digital is a 2-channel Class-D compact digital audio amplifier capable of delivering 20W per channel at 4 Ohms or 40W at 8 Ohms in bridged mode. The amp has a microphone input that allows you to provide phantom power to a condenser microphone. There are two analog inputs to choose from, a 6-pin terminal block and a 3.5mm stereo port. The output is a mix of the microphone and the selected audio input. In addition to the front-panel controls, the KD-AMP220 offers control via RS-232 or IR for integration with your professional AV control system.
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Key Digital KD-AMP220 Overview

Designed for speech reinforcement in classrooms, conference rooms, and other small- to medium-size venues, the KD-AMP220 from Key Digital is a 2-channel Class-D compact digital audio amplifier capable of delivering 20W per channel at 4 Ohms or 40W at 8 Ohms in bridged mode. The amp has a microphone input that allows you to provide phantom power to a condenser microphone. There are two analog inputs to choose from, a 6-pin terminal block and a 3.5mm stereo port. The output is a mix of the microphone and the selected audio input. In addition to the front-panel controls, the KD-AMP220 offers control via RS-232 or IR for integration with your professional AV control system.

Class-D amplification
Two channels at 20W per channel at 4 Ohms, or 40W at 8 Ohms bridged
3-pin balanced input for condenser/dynamic mic
6-pin balanced stereo and 3.5mm stereo inputs
Output is a mix of microphone and selected audio input
Variable volume level set for each input
Variable volume, bass, and treble for output
48V phantom power for integration with condenser microphones
Speaker-level and 6-pin balanced pre-amp line-level outputs
Bridge, stereo, or mono mode selectable for speaker-level output
Noise gate for consistent audio levels and prevention of ambient noise
Front-panel controls
Fully controllable via IR and RS-232 control systems via open API
Compatible with Compass Control Pro system
External IR sensor included
UPC: 815996020358

Key Digital KD-AMP220 Specs

Form Factor/Type
Tabletop
Number of Amplifier Channels
2
Load Impedance/Voltage Support
4 / 8 Ohms
Power Rating per Channel
2x 20 W
Channel Bridging & Power Sharing
1x 40 W Bridged at 8 Ohms
Amplifier Class
Class-D
Performance
Frequency Response
20 Hz to 20 kHz
SNR/Noise
< 80 dB SNR
THD/Distortion
≤ 1% THD (1 kHz)
Signal Processing
DSP
No
Audio Delay
No
Dynamics
Limiter
Connectivity
Analog Audio I/O
1x Block 3-Pin Balanced Mic Input
1x Block 6-Pin Balanced Line Input
1x 1/8" / 3.5 mm Unbalanced Line Input
1x Block 6-Pin Balanced Line Output
1x Block 4-Pin Speaker Output
Digital Audio I/O
No
Network I/O
No
Other I/O
1x Block 3-Pin Control
USB I/O
1x Micro-USB (Service/Update)
Phantom Power
No
Wireless
No
Power
Input Power
120 VAC, 60 Hz
Physical
Display
Single-LED Indicators Only
Dimensions
4.8 x 3.4 x 1.3" / 12.2 x 8.6 x 3.3 cm
Packaging Info
Package Weight
2.72 lb
Box Dimensions (LxWxH)
10.7 x 9.3 x 2.3"

Key Digital KD-AMP220 Reviews

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