AMR-220 2 X 1 AUDIO MIXER AMPLIFIER

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)

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.

SPECIFICATIONS

• 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)