Rotel RMB-1585 MKII 5-Channel Power Amplifier (210W x5) | RM1585MK2
Rotel RMB-1585 MKII 5-Channel Power Amplifier (210W x5) | RM1585MK2
Available to order — ships from incoming stock
Typically ships in 4–8 Business Days (Western Canada) · 2–5 Business Days (Eastern Canada)
SKU:RMB1585MK2B
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Rotel RMB-1585MKII 5-Channel Power Amplifier
The Rotel RMB-1585MKII is a high-current, Class AB, 5-channel power amplifier engineered for reference-grade home theater and custom integration. It is rated at 210 W/ch into 8 Ω (5 channels driven) and 340 W/ch into 4 Ω (5 channels driven), with 440 W/ch into 4 Ω (2 channels driven) for demanding front-stage duty.
Dealer Snapshot
- Use case: Dedicated 5-channel amplification for processor-based theaters, or high-output L/C/R + surround amplification with consistent voicing
- Continuous output: 210 W/ch (8 Ω, 5ch) • 340 W/ch (4 Ω, 5ch) • 440 W/ch (4 Ω, 2ch)
- Topology: Class AB, high-current multi-channel design
- Power supply: dual toroidal transformers with high-capacity energy storage
- Inputs: per-channel RCA (unbalanced) + XLR (balanced) — connect one input type per channel (do not use both simultaneously)
- Control: 12 V trigger in/out (3–30 V AC/DC accepted)
- Thermal management: 4 internal cooling fans + rear Fan Off / Fan Auto selector
- Rack: 5U chassis; rack ears included
Why Dealers Care
- All-channels-driven rating: power specifications are stated with all channels active—relevant for real-world theater playback.
- CI-ready sequencing: 12 V trigger in/out supports clean power sequencing and daisy-chaining with processors and control systems.
- Flexible signal integration: XLR for long runs/noise rejection; RCA for conventional short-run rack layouts.
- Bi-amp mode support: rear switch enables simplified bi-amp routing where Channels 1+2 and Channels 4+5 receive shared input signals.
Specs at a Glance
| Category | Specification |
|---|---|
| Channels | 5 |
| Continuous Power Output | 210 W/ch (8 Ω, 5ch) • 340 W/ch (4 Ω, 5ch) • 440 W/ch (4 Ω, 2ch) |
| THD | < 0.03% |
| Frequency Response | 10 Hz–100 kHz (+0.1 dB, −0.3 dB) |
| S/N Ratio (A-weighted) | 120 dB |
| Gain | 26.9 dB |
| Damping Factor (1 kHz, 8 Ω) | 223 |
| Crosstalk / Separation | > 55 dB |
| Power Consumption | 1200 W |
| BTU (4 Ω, 1/8 power) | 3317 BTU/h |
| Dimensions (W×H×D) | 17.0 × 9.33 × 18.0 in (431 × 237 × 456 mm) |
| Front Panel Height | 5U / 8.75 in (221 mm) |
| Net Weight | 82 lb (37.4 kg) |
Connectivity & Control (CI Notes)
- Analog Inputs: 5 × RCA (unbalanced) + 5 × XLR (balanced)
- Input selection: rear-channel input selector switches (RCA/XLR)
- Speaker outputs: 5 channels of binding-post outputs
- Trigger: 3.5 mm mono 12 V trigger in/out; accepts 3–30 V (AC or DC) control signals
Cooling & Rack Integration
- Cooling: four internal fans for ventilation; rear Fan Off / Fan Auto selection
- Rack height: 5U; allow adequate airflow (this amplifier produces significant heat under load)
- Installer note: use Fan Auto for typical rack installs; use Fan Off only when ventilation is proven and noise is critical
Bi-Amp Mode (When to Use It)
Bi-Amp mode is intended for compatible loudspeakers with separate HF/LF terminals. In this mode, Channels 1+2 and Channels 4+5 receive shared input signals to simplify routing while allowing separate amplifier channels to drive HF and LF sections.
- Use with: speakers with separate HF/LF binding posts and removable bridging bars
- Commissioning note: confirm speaker bridging bars are removed and polarity is consistent across HF/LF sections before power-up
Finish Options (SKUs)
- RMB1585MK2B — Black
- RMB1585MK2S — Silver
Commercial & Logistics (No Dealer Pricing)
| Model | Finish | MSRP | UPC | Ship Wt | Carton (L×W×H) | Warranty | Status |
|---|---|---|---|---|---|---|---|
| RMB1585MK2B | Black | $4,999.00 | 672563287114 | 94 lb | 24 × 24 × 14 in | 5 Years | Active |
| RMB1585MK2S | Silver | $4,999.00 | 672563787119 | 94 lb | 24 × 24 × 14 in | 5 Years | Active |
In the Box
- Rack ears
- Detachable IEC power cord
FAQ
- Is this rated with all channels driven? Yes — continuous output is specified with 5 channels driven (8 Ω and 4 Ω).
- Can I connect RCA and XLR at the same time? No — use only one input type per channel (RCA or XLR).
- What trigger voltage does it accept? The trigger input accepts AC or DC control signals from 3 V to 30 V.
- Does it have fan control? Yes — Fan Off / Fan Auto switch on the rear panel.
- Does it support bi-amping? Yes — Bi-Amp mode provides shared-input routing for paired channels for compatible speakers.
