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Rotel RMB-1555 Multichannel Surround Power Amplifier


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.


Model RMB-1555
Continuous Power Output
120 watts/channel,
5 channels dirven
Total Harmonic Distortion
(20Hz-20kHz, 8 ohms)
Intermodulation Distortion
(60Hz : 7 kHz, 4:1)
Frequency Response
(+0.5, ‰ÛÒ3 dB)
10Hz - 100kHz
Damping Factor
(20-20,000Hz, 8 ohms)
Speaker Impedance 4 ohms minimum
Signal to Noise Ratio
(IHF A network)
116 dB
Input Impedance/Sensitivity 12k ohms/1.5 volt
Gain 26.5 dB
Power Requirements -
U.S. version 120 volts, 60Hz
European version 230 volts, 50Hz
Power Consumption 650 watts
Width x Height x Depth 431 x 188 x 454mm
17 x 7 1/2 x 17 7/8 in
Front Panel Height 4U / 176.8mm / 7 in
Weight (net) 21.8kg / 48.1 lb

*Reprint from Manufacturers Website.

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