Rotel RMB-1585 MKII Multi-Channel Power Amplifier

Incredible Power For Your Home Theatre

Rotel’s RMB-1585MKII 5-channel amplifier continues our heritage of producing high powered, perfectionist amplifiers for multi-channel systems.

Following Rotel's updated MKII design architecture, the RMB-1585MKII incorporates both circuit and component upgrades in the power supply and amplifier stages achieving ultra-low distortion, high gain amplification and signal isolation rendering multi-channel audio with ultimate precision and exacting clarity.

The Class AB RMB-1585MKII is built around two massive in-house manufactured high-current toroidal transformers designed to supply stable current to an array of 8 high-efficiency energy storage capacitors. This power supply architecture delivers rich, deep bass energy with absolute control of low frequencies even when driving the most demanding loudspeakers.

To optimise cooling, the RMB-1585MKII is equipped with 4 thermostat-controlled, variable-speed ultra-low-noise fans.

The RMB-1585MKII features a rear panel switch to select normal 5-channel mode, or Bi-Amp mode. In Bi-Amp mode, Channels 1+2 and Channels 4+5 are wired to receive the same input signal, allowing for simple bi-amplification.

This unique configuration allows the use of a separate amplifier channel for the Left and Right channel High Frequency (HF) and Low Frequency (LF) drivers, resulting in improved dynamics, and enhanced resolution from compatible loudspeakers.

The RMB-1585MKII is purpose built for Home Theatres and custom installation. Convenient auto-switching XLR Balanced and RCA inputs ensure compatibility with any AV Processor or Home Theatre receiver preamp output, and a 12 V trigger input and output provides simplified power control. Detachable rack mount hardware is available for mounting in standard 19” equipment racks.

The RMB-1585MKII is available in both elegant black and stylish silver colours.

Features

5 x 340 Watts of robust Class AB power, 4 Ohms

Massive power supply using Dual Toroidal Transformers

Balanced XLR inputs

12 volt trigger input and output

High quality slit foil capacitors

Optional rack ears available

Specifications

Continuous Power Output 210 W/Ch (5 Channels Driven, 8Ω), 340 W/Ch (5 Channels Driven, 4Ω), 440 W/Ch (2 Channels Driven, 4Ω)

Total Harmonic Distortion (THD) 20 Hz – 20 kHz: <0.03%

Frequency Response 10 Hz - 100 kHz, +0.1, -0.3 dB

Signal to Noise Ratio (IHF "A" Weighted) 120 dB

Gain 26.9 dB

Intermodulation Distortion (60 Hz:7 kHz, 4:1) <0.03%

Damping Factor (1 kHz, 8Ω) 223

Crosstalk/Separation >55 db

Input Sensitivity Line Level Inputs (RCA): 1.89 V, Line Level Inputs (XLR): 4.7 V

Input Impedance Line Level Inputs (RCA): 12 kΩ, Line Level Inputs (XLR): 50 kΩ

Dimensions (W x H x D) 431 x 237 x 456 mm (17" x 9.4" x 18")

Front Panel Height 5U / 221 mm (8.75")

Power Requirements 230 V, 50 Hz

Power Consumption 1200 W

Net Weight 37.4 kg (82 lb)

BTU Rating (4Ω, 1/8th Power) 3317 BTU/h