Rotel RMB1585 MK II 5 Channel Power Amplifier

The Rotel RMB-1585 MKII is designed for high-performance home theatre systems that require consistent, full-range power across every channel. As a dedicated five-channel amplifier, it focuses entirely on delivering stable, high-current output—making it an ideal partner for AV processors and preamplifiers in serious multi-channel setups.

Each channel delivers 210 watts into 8 ohms (340 watts into 4 ohms), with all channels driven simultaneously. This is a key distinction—ensuring that performance remains consistent even during demanding, multi-channel playback where lesser amplifiers may struggle.

The RMB-1585 MKII is built around a substantial power supply featuring oversized toroidal transformers and high-capacity storage capacitors. This design provides the current reserves needed for dynamic peaks while maintaining low noise and stability across all channels. The MKII platform also introduces updated circuitry and component refinements, improving signal isolation and reducing distortion.

Installation and integration are straightforward. The amplifier includes both balanced XLR and single-ended RCA inputs with auto-sensing capability, allowing it to adapt easily to a wide range of processors. A 12V trigger input and output enable synchronized power control, while high-quality binding posts provide secure speaker connections.

The RMB-1585 MKII also offers flexibility beyond standard surround configurations. A built-in bi-amp mode allows selected channels to be reassigned for increased output to front speakers, giving users additional system configuration options.

Thermal management is handled by thermostat-controlled, low-noise cooling fans, ensuring reliable operation even in enclosed racks or high-demand installations. The chassis itself is substantial, designed to minimize vibration and support long-term durability in dedicated systems.

Key Features:

• 5 x 210W per channel (8 ohms, all channels driven) Class AB amplification
• 340W per channel into 4 ohms
• Oversized toroidal transformers with high-capacity power supply
• MKII circuit and component upgrades for improved performance
• Balanced (XLR) and single-ended (RCA) inputs with auto sensing
• Bi-amp capability for flexible system configuration
• 12V trigger input/output for system integration
• Thermostat-controlled cooling system for reliability
• High-mass chassis with rack-mount capability

The Rotel RMB-1585 MKII is built for systems where consistent, high-current performance across multiple channels is essential—delivering the power and stability needed to fully realize a high-end home theatre setup.