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Opus One 100W Stereo Amplifier

SKU : A4200

RRP: $179.00
Our Price: $158.70
Less: 11%


  • Description
  • Reviews

A compact, sturdy 2 x 50W RMS   stereo amplifier with 3.5mm input on the front and RCA input on the back for easy connection to a music source. It offers class-AB performance from an efficient class-D design. It can also double as a headphone amplifier thanks to its front panel mounted 6.35mm jack connection. Includes power supply, banana plugs for speaker connection, 3.5mm headphone adaptor and 3.5mm to RCA lead. Pair it with a bluetooth audio streamer such as A 1109 for wireless music listening!

24V DC 5A Power supply included






  • 50w per channel continuous (100W total) into an 8 ohm load
  • Audiophile quality sound with less than 0.01% THD @ 30W
  • Headphone phono jack allows the unit to double as a high fidelity headphone amplifier
  • Convenient front mounted 3.5mm input for quick connection of large audio devices
  • Compact extruded aluminium housing with thick black anodized faceplate
  • Rear mounted RCA-type input for permanent connection of large audio devices
  • Short circuit, thermal and overload protection
  • External 24V DC 5A power supply included


  • Power Output: 50 watts RMS x 2 into 8 ohm
  • Total Harmonic Distortion: <0.01% @30W; <5.0% @50W
  • Minimum Speaker Impedance: 6 ohm
  • Signal-to-Noise Ratio: 103 dB, A weighted
  • Input Impedance: 2k ohm ± 5%
  • Frequency response: 20-20,000 Hz
  • Channel Separation: 95 dB
  • Efficiency: 85%
  • Dynamic Range: >100 dB
  • Electrical Requirement: 24Vd.c. @ 5A centre pin positive (power supply included)
  • Dimensions: 50H x 85W x 130D mm
  • Weight: 455g

*Specifications are subject to change without notice.

  • Model: A4200
  • Brand: Opus One

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