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Hall Research AMP-4840 40 Watt Audio Amplifier with Microphone Mixer and RS-232 Control

In stock (50 items available)
  • Brand
    Hall Research
  • SKU
  • Weight
    3.00 lbs
  • Warranty
    3 Years
  • Condition
  • Status
    In Stock

Market price: $295.00,
Instant savings: $14.75
  • $280.25

Questions? Ask our experts!
  • Weight
    3 lbs
  • SKU
  • Mnf#/Vendor#
    Hall Research

The AMP-4840 is an economical, compact, and energy efficient (Class D) mono/stereo audio amplifier which has three inputs (a balanced microphone and 2 line in). The adaptable design is compatible with dynamic, condenser or wireless microphones with fully adjustable control options including Infrared, RS-232, and front panel buttons. Functions of the amplifier include dual- mono, bridge connection, microphone mixer, and equalization control.

AMP-4840 is built to drive one or two speakers but scapable of operating four speakers in parallel mode as shown below, and in the configuration, each 8- ohm speaker will be able to deliver up to 10W of power for a total of 40W.

AMP-4840 is perfect for boardrooms, classrooms, sports bars, meetingrooms and more.

Optional IR Remote Kit

Order of the IR Remote can separately occur (P/N AMP-484- REMOTE )


  • Drives: 2x 20w @ 4Ω or 2x 10w @ 8Ω or 1x 40w @ 8Ω in bridge mode
  • Two stereo audio inputs, switchable by button, IR remote & RS-232
  • Volume / Bass / Treble controllable by buttons IR remote & RS-232
  • MIC port supports balanced or unbalanced signals
  • 3.5mm jack line audio output with controllable volume
  • Mono mix switch for summing left and right channels for driving mono outputs
  • Microphone input can be mixed with line input and each can be controlled separately
  • MIC input supports 48V phantom power, dynamic MIC and wireless MIC
  • Auto noise squelch. Detects audio on inputs and mutes the output when there is no input
  • Does not have fans