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ROTEL RMB 1555 5 Channel Power Amplifier

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ROTEL RMB 1555 5 Channel Power Amplifier
Warranty Period: 2 years Sold as: 1 Unit

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The RMB-1555 is a remarkable multichannel amplifier with power output conservatively rated at 120 watts per channel into 8 ohms (all channels driven!). With all but the most demanding speakers located in extraordinarily large rooms, the RMB-1555 exerts the kind of precise control that presents both nuance and bombast correctly from the faintest flute overtones to the subterranean rumble of an approaching apocalypse.

The RMB-1555 employs a high current, toroidal transformer matched to discrete output transistors with their higher thermal stability and freedom from the designed-in compromises that characterise their integrated circuit cousins. The Class AB amplifier configuration assures the best balance between power output and thermal efficiency.



Power 5 x 120 Watts of robust power
Class AB Class AB amplifier design
Capacitor High quality slit foil capacitors made in Britain
Rack Mount Rack ears included
12 volt trigger 12 volt trigger input


Continuous Power Output (20-20kHz, <0.03%, 8 Ohms)

  • 120 Watts Per Channel, All channels driven (5)

Total Harmonic Distortion (20Hz - 20kHz, 8 Ohms)

  • <0.03%

Intermodulation Distortion (60Hz : 7kHz, 4:1)

  • <0.03%

Frequency Response (+0.5, -3dB)

  • 10Hz - 100kHz

Damping Factor (20 - 20kHz, 8 Ohms)

  • 180

Speaker Impedance

  • 4 Ohms Minimum

Signal to Noise Ratio (IHF A network)

  • 116dB

Input Impedance / Sensitivity

  • 12kOhms / 1.5 Volt


  • 26.5dB

Power Requirements

  • 230V
  • 50Hz

Power Consumption

  • 650 Watts Peak


  • 431mm Width
  • 188mm Height
  • 454mm Depth
  • 4U / 176.8mm Front Panel Height
  • 21.8kg (net)