Overview

The AMP-4840 is a compact, economical and energy efficient (Class D) mono / stereo audio amplifier with 3 inputs (2 line in and 1 balanced mic). Versatile design is compatible with dynamic, condenser or wireless microphones with fully adjustable control options including RS-232, IR, and front panel buttons. Functions include bridge connection, dual-mono, EQ control, and microphone mixer.

It is designed to drive one or two speakers, but is capable of driving 4 speakers in parallel mode as shown below. In the below configuration each 8 ohm speaker will be able to deliver up to 10 watts of power for a total of 40 watts.

The AMP-4840 is a perfect for classrooms, meeting rooms, boardrooms, sports bars, and more.

Features

• 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

Specifications

• Rated Output:
  2 x 20 w @ 4 or 2 x 10 w @ 8
• Gain:
  32 dB
• Frequency Range:
  20 Hz to 20Khz
• Signal/Noise Ratio:
  20Hz to 20KHz
• Total Harmonic Distortion:
  80dB (at max output)
• Input Impedance:
  > 10 Kohm
• Output Impedance:
  3.5 mm Loop Out: 50 ohm
  Speaker Out: 4-8 ohm - Amplified
• Stereo Channel Separation:
  >75 dB from 20 Hz to 20 KHz
• CMRR:
  >70 dB from 20 Hz to 20 KHz
• Operating Temperature:
  0°C to 40°C (32°F to 104)
• Humidity:
  20 to 90% non-condensing
• Power:
  Max Consumption: 40 watts
  Idle Consumption: 4 watts
• Power Supply:
  Input: 100 VAC to 240 VAC, 47-63 Hz
  Output 24 VDC / 5A
• Dimension:
  Model: 3.78" (96 mm) W x 3.43" (87 mm) D x 1.5" (38 mm) H
• Weight:
  Model: 0.66 lbs (0.3 kg)
  Shipping: 1.95 lbs (0.88 kg)
• Certifications:
  Unit: CE, FCC, RoHS
  Power Supply: cULus