Amp Box RS Mono

  • Fully-balanced single-channel tube tube design 
  • 2Ω drive capability 
  • Tube buffer stage with reference quality 



The Amp Box RS Mono has multiple specific characteristics which make it a true high-end amplifier. The amplifier has a fully balanced double mono design, a highly efficient energy saving PWM modules as well as a Tube buffer input stage. The Amp Box RS Mono also come with the available option of an upgrade PS Box RS for more power and an improved sound quality.

Box Design's Amp Box RS Mono offers a 3-dimensional sound-staging, perfect micro dynamics and an ultimate resolution combined with a high powered output and 2 ohm capability. Audio loop-outputs and Trigger In/Out on the Amp Box RS Mono make it the perfect solution for Bi– or Tri-Amping applications.

Available in Black or Silver casework.

Key Features:

  • Fully-balanced single-channel tube tube design 
  • Highly efficient conversion from mains to output power (92%) 
  • 2Ω drive capability 
  • Tube buffer stage with reference quality 
  • SMD construction for shortest signal paths 
  • Low heat emission 
  • Line level preamp inputs (RCA & XLR) 
  • Top-quality speaker terminals 
  • Luxury metal casing protects against vibration and interference 

Technical Data

Power Output: 1x 125W at 8Ω
1x 195W at 4Ω
2Ω Drive Capability
Frequency Response: 10Hz - 50kHz (+0dB, -3)
THD: < 0.05% At 100W
Noise Floor: > -100dB (IEC -A)
Input: RCA & XLR Sockets 
Input Sensitivity: 1.35V 
Input Impedance: 22kΩ
Speaker Connectors: 4mm Ø Banana Plugs
Spades Connectors
or Naked Wire
External Power Supply: 48V/2.5A DC;
100 - 240V, 50/60Hz
Dimensions: 206 x 72 x 200mm
206 x 72 x 220mm (Incl. Sockets)
Weight:  2020g (Without PSU) 
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