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With only slightly less power than its big brother, the RMB-1555 retains a very robust power supply to deliver 5 x 120 Watts per channel to medium and large home theaters.
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.
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Features:
- 120 watts per channel into 8 ohms (20-20,000 Hz) at 0.03% THD with all channels driven
- 4-ohm stable for use with a wide range of speakers
- Class AB design
- Custom made toroidal transformer for stable, noise-free performance
- High-quality, British-made capacitors
- Frequency response: 10-100,000 Hz (+0.5/-3dB)
- Signal-to-noise ratio: 116 dB
- Thermal and overcurrent protection circuitry
- Rack mounting ears included
- Detachable power cord
Connections:
- Unbalanced RCA inputs for all five channels
- 5-way binding post terminals for each speaker
- Switchable 3.5mm 12-volt trigger in/out
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Specifications:
Dimensions (W × H × D)
431 × 188 × 454mm
17" × 7.5" × 17.9"
Front Panel Height
4U / 176.8mm (7")
Power Requirements
120V, 60Hz
Power Consumption
650W
Standby Power Consumption
0.5W
Net Weight
21.8kg (48lbs.)
BTU Rating (4Ω, 1/8th power)
1683 BTU/h
Power Output
120W/Ch (5 channels driven, 8Ω)
170W/Ch (5 channels driven, 4Ω)
Total Harmonic Distortion (THD)
(20Hz–20kHz) <0.03%
Frequency Response
10Hz - 100kHz +0.5, -3dB
S/N Ratio (IHF "A" Weighted)
116dB
Gain
26.5dB
Intermodulation Distortion (60Hz:7kHz, 4:1)
<0.03%
Damping Factor
180
Speaker Impedance
4Ω minimum
Input Sensitivity
1.5V
Input Impedance
12kΩ