Rotel RMB-1555 Multi-channel Power Amplifier

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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.

Specifications

Continuous Power Output (20-20kHz, < 0.03%, 8 ohms): 120 watts/channel, 5 channels driven
Total Harmonic Distortion (20Hz-20kHz, 8 ohms): < 0.03%
Intermodulation Distortion (60Hz : 7 kHz, 4:1): < 0.03%
Frequency Response (+0.5, '3 dB): 10Hz - 100kHz
Damping Factor (20-20,000Hz, 8 ohms): 180
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: US - 120 volts, 60Hz / EU - 230 volts, 50Hz
Power Consumption: 650 watts
Width x Height x Depth: 431 x 188 x 454mm
Front Panel Height: 4U / 176.8mm / 7 in
Weight (net): 21.8kg