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Rotel RMB 1555: An exceptional multichannel amplifier

Rotel RMB 1555
Rotel RMB 1555

The Rotel RMB-1555 amplifier is versatile enough to function effectively in both high-end home theater setups and multi-room audio systems. It features five amplifiers, each capable of delivering 120 W at an 8-ohm load. The output stages utilize high-current transistors, providing excellent compatibility with a wide range of acoustic systems. Each channel’s amplifier is constructed on identical printed circuit boards, designed with larger conductor cross-sections and minimized audio signal transmission lengths. The output transistors are affixed to substantial heat sinks, enhancing thermal management. Coupled with a combined operating mode of Class A/B, this design ensures the amplifier operates reliably even at elevated sound levels. Additionally, all components in the amplifier’s circuitry are subjected to rigorous quality control measures.

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The power supply of the Rotel RMB-1555 features a robust toroidal transformer designed by Rotel, ensuring meticulously controlled specifications. Additionally, the filter incorporates multiple capacitors connected in parallel, resulting in a substantial overall capacitance.

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The Rotel RMB-1555 features RCA inputs along with sturdy screw terminals for connecting speaker systems. It offers trigger control capabilities, including a trigger output for activating additional AV components. Housed in a robust metal chassis with an elevated design, the amplifier promotes optimal air circulation and effective heat dissipation from its internal circuits.

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The Rotel RMB-1555 boasts impressive output power and features a rapid-response protection circuit designed to address any irregularities. Both the front and rear panels of the amplifier are fitted with ventilation openings, enhancing its operational reliability. Additionally, the robust anti-resonance steel chassis includes a fifth support for improved structural stability. The amplifier also comes with a detachable power cable, allowing for easy replacement with an alternative cable if preferred.

Rotel RMB-1555 Specifications

  • Output Power 5 x 120 W (8 Ohm)
  • Frequency Response 10 Hz – 100,000 Hz
  • Signal-to-Noise Ratio -116 dB
  • Damping Factor 180
  • Harmonic Distortion Less Than 0.003%
  • Inputs 5 RCA, trigger
  • Outputs 5 pairs of speaker terminals, trigger
  • Sensitivity/Impedance 1.5 V / 12 kOhm
  • Gain 26.5 dB
  • Power Consumption 650 W
  • Dimensions (WxHxD) 431 x 188 x 454 mm
  • Weight 21.8 kg

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