Rotel RMB-1587MKII 7-Channel Amplifier

Rotel RMB-1587MKII Power Amplifier

The Rotel RMB-1587MKII is a high-current, 7-channel Class AB power amplifier built to bring true theater-grade dynamics and control to premium home theater and custom-install systems. Unlike many multichannel amps that sag when all channels are working, the RMB-1587MKII is engineered to deliver consistent, full-bandwidth power across every channel—driving demanding speakers with authority, clarity, and tight bass grip.

At the heart of the design is Rotel’s MKII architecture with meaningful circuit and component upgrades, anchored by a massive power supply with dual toroidal transformers and high-quality slit-foil capacitors for stable current delivery and low noise. Add in balanced XLR and RCA connectivity, 12V trigger control, thermostat-controlled variable-speed cooling, and included rack ears, and you have a powerhouse amplifier that fits cleanly into serious home theater racks and high-performance media rooms. Available in black or silver.

The Rotel RMB-1587MKII is part of ListenUp's Rotel Power Amplifiers Collection.

What It's Good At:

• Driving full 7-channel home theater systems with strong, stable output (even with all channels driven)
• Delivering high-current control for tough speaker loads and impactful, cinematic dynamics
• Producing clean, low-distortion sound with wide bandwidth for detailed dialogue and precise effects
• Supporting premium AV processors with both XLR balanced and RCA unbalanced inputs
• Streamlining custom installs with rack ears included and 12V trigger power control
• Running cool and reliably with thermostat-controlled, variable-speed ultra-low-noise fans

Rotel RMB-1587MKII Full Specifications:

• Amplifier Type: 7-channel power amplifier
• Amplifier Design/Class: Class AB
• Power Output (7 channels driven, 8 ohms): 155 W/channel (continuous)
• Power Output (7 channels driven, 4 ohms): 250 W/channel (continuous)
• Power Output (2 channels driven, 4 ohms): 335 W/channel
• FTC Power Output Rating (7 channels driven, 8 ohms): 165 W/channel
• FTC Power Output Rating (2 channels driven, 8 ohms): 210 W/channel
• Total Harmonic Distortion (20 Hz–20 kHz): < 0.03%
• Intermodulation Distortion (60 Hz:7 kHz, 4:1): < 0.03%
• Frequency Response: 10 Hz – 100 kHz (+0 dB, -3 dB)
• Damping Factor (1 kHz, 8 ohms): 330
• Signal-to-Noise Ratio (IHF “A” Weighted / A Weighting): 111 dB
• Gain: 26.6 dB
• Crosstalk/Separation: > 55 dB
• Input Sensitivity (RCA / Unbalanced): 1.61 V
• Input Sensitivity (XLR / Balanced): 3.4 V
• Input Impedance (RCA / Unbalanced): 12 kΩ
• Input Impedance (XLR / Balanced): 50 kΩ
• Inputs: RCA (unbalanced) and XLR (balanced), auto-switching
• Control: 12V trigger input and output
• Cooling: Thermostat-controlled, variable-speed ultra-low-noise fans
• Rack Mounting: Rack ears included (rack mount kit included in some regions)
• Speaker Impedance (Nominal): 8 ohms
• Finish/Colors: Black and Silver
• Dimensions (W × H × D): 431 × 237 × 456 mm (17 × 9 1/3 × 18 in)
• Front Panel Height: 5U / 221 mm (8 3/4 in)
• Net Weight: 37.6 kg (82.9 lbs)
• Power Consumption: 1400 W
• BTU Rating (4 ohms, 1/8 power): 4016 BTU/h
• Power Requirements: USA: 120 V, 60 Hz; Europe/EC: 230 V, 50 Hz

Rotel RMB-1587MKII Q&A:

What is the Rotel RMB-1587MKII designed for?

It’s a high-current, 7-channel Class AB power amplifier built to power premium home theater and custom-install multichannel speaker systems with stable, consistent output.

How much power does it deliver with all channels driven?

It delivers 155 W per channel into 8 ohms and 250 W per channel into 4 ohms with all 7 channels driven, helping maintain dynamics during demanding scenes.

Does it support balanced connections from an AV processor?

Yes—there are XLR balanced inputs as well as RCA unbalanced inputs, providing flexible integration with AV processors and receivers.

Can it handle difficult speaker loads?

Yes. The amplifier’s high-current design and strong power supply help it control and drive demanding speakers, including 4-ohm loads, with authority.

Is it suitable for rack installation?

Yes. Rack ears are included, and the chassis/front panel height is designed to fit standard equipment racks for clean custom installs.

Does it include trigger control for system automation?

Yes. It includes 12V trigger input and output, allowing your processor or control system to power the amplifier on/off automatically.

How does it manage heat in a multi-channel setup?

It uses thermostat-controlled, variable-speed ultra-low-noise fans to optimize cooling while keeping operational noise low.

What finishes are available?

The RMB-1587MKII is available in black or silver to match common AV rack and component aesthetics.

Rotel RMB-1587MKII Downloads:

Rotel RMB-1587MKII Manual
Rotel RMB-1587MKII Specifications Sheet
Rotel RMB-1587MKII Drawing