Multichannel Amplifiers


Although offering slightly less power than its big brother, the RMB-1555 retains a very robust power supply and delivers 5 x 120 Watts per channel of amplification.

Power5 x 120 Watts of
robust power

Class ABClass AB amplifier

CapacitorHigh-quality slit foil
capacitors made in

Rack MountRack ears included

12 volt trigger12 volt trigger input

Engineered with care.

RMB-1555 Internal View

Dimensions (W × H × D)
431 × 188 × 454mm
17" × 7.5" × 17.9"
Front Panel Height
4U / 176.8mm (7")
Power Requirements
230V, 50Hz
Power Consumption
Standby Power Consumption
Net Weight
21.8kg (48lbs.)
BTU Rating (4Ω, 1/8th power)
1683 BTU/h


Continuous Power Output
120W/Ch (All channels driven, 8Ω)
Total Harmonic Distortion (THD)
(20Hz–20kHz) <0.03%
Frequency Response
10Hz - 100kHz +0.5, -3dB
S/N Ratio (IHF "A" Weighted)
Product Description 

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 characterize their integrated circuit cousins. The Class AB amplifier configuration assures the best balance between power output and thermal efficiency.

More Specifications 
Intermodulation Distortion (60Hz:7kHz, 4:1)
Damping Factor
Speaker Impedance
4Ω minimum
Input Sensitivity
Input Impedance

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