Rotel is introducing two new models to its line of home theatre multi-channel amplifiers: the RMB-1585MKII and RMB-1587MKII both of which are scheduled to be available in late November 2023.
The RMB-1587 MKII power amplifier delivers seven channels of Class AB amplification, powering 155 Watts per channel, with all channels driven into 8 ohms. The amplifier further achieves 250 Watts per channel at 4 ohms, with all channels driven, and outputs 335 Watts per channel in two channels.
Powered by dual in-house manufactured high-current toroidal transformers, driving 8 high-efficiency bulk storage capacitors, this amplifier ensures reserve power storage totaling 120,000uF. The power supply architecture delivers deep, controlled, and rich bass energy, even when driving the most demanding speaker loads, says the company.
Following Rotel’s MKII design architecture, the RMB-1587MKII incorporates circuit and component upgrades in both the power supply and amplifier stages further refining the audio with stunning clarity.
The amplifier features convenient auto switching XLR Balanced and RCA inputs, along with a 12 V trigger input and output for simplified power control. To optimize cooling, the RMB-1587MKII is equipped with four thermostat-controlled, variable-speed ultra-low-noise fans.
The RMB-1587 MKII power amplifier comes in black and silver with optional rack ears and will sell for $5,399.
At $4,999, the RMB-1585 MKII power amplifier delivers five channels of Class AB amplification. The amplifier delivers 210 Watts per channel into 8 ohms and 340 Watts per channel at 4 ohms, with all channels driven. When driving two channels, the amplifier excels even further, reaching 440 Watts per channel, ensuring optimal power distribution even under extreme loading conditions.
Using dual in-house manufactured oversized toroidal transformers and 8 high-efficiency bulk storage capacitors totaling 120,000uF, the RMB-1585MKII produces controlled, deep bass while maintaining detail in the midrange and high frequencies.
The amplifier incorporates upgrades and improvements in both the power supply and amplifier gain stage circuits, leveraging Rotel’s advanced MKII design architecture enhancing detail and precision.
This amplifier features a rear panel switch that allows the amplifier to be configured as a 3-Channel amplifier supporting Bi-Amp mode of Channels 1+2 and 4+5. When Bi-Amp is enabled, Channels 1+2 automatically use source input #1 and Channels 4+5 automatically use source input #5 allowing individual, isolated amplifiers routed to the speakers HF and LF drivers. This configuration, says Rotel, ensures precise signal path routing, effectively separating the High Frequency (HF) and Low Frequency (LF) drivers. The resulting audio enhances resolution and provides higher drive power to the loudspeakers.
The RMB-1585MKII offers support for XLR Balanced and RCA inputs, with auto-switching to the connected inputs. It also includes a 12V trigger input and output for simplified power control.
Equipped with four ultra-low noise, variable speed cooling fans that are CPU thermostat-controlled, this amplifier ensures optimal cooling performance. It also comes with optional rack ears and finished in black or silver.