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Item #: AMR220
MSRP: No Retail


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 IR and RS-232, as well as a convenient top control panel.



  • 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).
  • IR control (via optional IR remote).
  • RS-232 control.
  • Audio loop output to share audio sources with multiple amplifiers.
  • Compact form factor with noiseless convection cooler.



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)

Prop 65WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

In certain instances promotional prices will be offered listed above as a “Price with Rebate”, and are typically dated. In these cases Instant Rebate (IR) pricing is good sometimes only for the day only or only for the week. In order to be eligible for IR pricing – the order must be paid for AND picked up/shipped out. If you are placing an online order outside of business hours within your respective time zone, please add a note to your order for the team to confirm the pricing, or contact the branch the following business day to ensure that the item pricing carries over into the subsequent period. If an alternate branch location is still open in another time zone, please reach out to that group.

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