RTI 2 Input Amplifier with Stereo Loop and Mic mixing - 20W
AMR-220 2-Channel Mixer Amplifier – 20W
The AMR-220 is a compact-size Class-D digital mixer/amplifier for classroom or meeting room applications requiring switching of two audio sources (e.g., laptops, video conference systems). Additionally, a microphone can be mixed with the line-level audio sources. The adjustable balanced/unbalanced microphone input supports condenser, dynamic, or wireless microphones.
The loop output can be used to share the same audio sources with multiple AMR-220s that power more speakers in different audio zones. The AMR-220 offers various control options, including RS-232, as well as a convenient top control panel.
Included in the box:
AMR-220, power cord, 3-pole pluggable terminal block (1), 4-pole pluggable terminal block (1), RS-232 cable (1), power adapter 24V DC 2.71A (1), plastic cushions (4).
Key Features
• Two input, one output audio mixer/amplifier.
• Two analog audio inputs (switchable).
• Balanced/unbalanced adjustable microphone input with 48V phantom power for condenser, dynamic, or wireless microphones.
• Supports microphone mixing to an audio line source
• Built-in Class-D amplifier
• Power Output: 2 x 20 Watts (4 Ohms) or 1 x 40 Watts bridged (8 Ohms).
• EQ control (bass / treble).
• RS-232 control.
• Audio loop output to share audio sources with multiple amplifiers.
• Compact form factor with noiseless convection cooler.
Specification
Power: +24 VDC
Mounting: Surface / wall mount
Audio Input: One Line Input Stereo (RCA jack), One Line Input Stereo (3.5 mm jack)
Microphone Input: One balanced/unbalanced (3-pin Phoenix Connector), Switchable Line / 48V Phantom Power
Input Impedance: >10K Ohms
Audio Output: One Stereo Speaker Output (4-pin terminal block), One Loop Output (3.5 mm jack)
Rated Output Power: 2 x 20 Watts @ 4 Ohms / 1 x 40 Watts bridged @ 8 Ohms
Speaker Impedance: 4 to 8 Ohms
Frequency Response: 20Hz to 20KHz
Bandwith: 20Hz to 25Khz
Signal-to-Noise Ratio: 80dB at maximum output
Channel Separation: >75dB @ 20Hz to 20Khz
Voltage Gain: 32dB
CMRR: >70dB @ 20Hz~20KHz
Total Harmonic Distortion + Noise @ 1KHz: 1% at nominal level
Total Harmonic Distortion + Noise @ 20KHz: 0.3% at nominal level
Front Panel Control: 5 Buttons for Input Select, Volume and EQ
RS232 Control: One, Bidirectional control (3-pin Phoenix Connector)
Operating Temperature: C -10 to +40 degrees F +14 to +104 degrees
Operating Humidity: 5% to 95% Non-condensing
Dimensions WxHxD: 4.84" (123mm) x 1.55" (39.5mm) x 3.42" (87mm)
Warranty: Three Years (Parts & Labor)
