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ROTEL RMB-1504
Multichannel Power Amplifier (4 Channels).
4 x 70 W (8 Ω) / 4 x 115 W (4 Ω), Class AB
Ideal for multizone audio or home theatre
RCA inputs, 12V trigger, signal triggering
Volume per channel, cascaded output
Rack mountable (2U) included
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Rotel RMB-1504. Multichannel Power Amplifier for High-End Installations
Performance, Flexibility, and Precision for Demanding Audio Systems
The Rotel RMB-1504 is a 4-channel power amplifier designed to deliver reliable, high-performance audio in multizone, home theater, and custom installation applications. Backed by over 60 years of Rotel’s amplification expertise, this amplifier offers the perfect balance of power, control, and efficiency, ideal for driving in-wall, in-ceiling, or architectural speakers with audiophile-grade fidelity.
Controlled Power, Precise Sound
Delivering 70 watts per channel into 8 ohms, or 115 watts per channel into 4 ohms, the RMB-1504 utilizes a Class AB amplification topology, prized for its dynamic musical performance and tonal accuracy. At its heart is a massive toroidal transformer, custom-designed and manufactured by Rotel, paired with high-efficiency capacitors and high-current output transistors. This results in tight, punchy bass, excellent transient response, and rich musical detail—ideal for both background and critical listening environments.
Engineered for Professional Integration
Designed with custom installers in mind, the RMB-1504 offers a suite of features for maximum flexibility and control:
4 RCA (unbalanced) input channels.
12V trigger input and output for system integration.
Automatic signal-sensing power-on.
Independent level controls for each channel on the front panel.
Loop-through outputs for daisy-chaining signal to additional amplifiers.
Rack-mount kit included (2U height).
This makes the RMB-1504 a perfect fit for high-performance distributed audio systems, multi-room setups, dedicated AV spaces, and even light commercial installations.
Technical Specifications
Number of Channels: 4
Power Output:
4 × 70 W RMS @ 8 Ω
4 × 115 W RMS @ 4 Ω
Amplification Type: Class AB
Frequency Response: 10 Hz – 100,000 Hz (±1 dB)
Signal-to-Noise Ratio: 115 dB
Gain: 26 dB
Inputs: RCA (unbalanced)
Control:
12V Trigger (In/Out)
Audio signal sensing auto-on
Additional Features:
Per-channel level adjustment
Audio loop output
Includes rack-mount hardware (2U)
Dimensions & Weight
Dimensions (W × H × D): 431 × 144 × 443 mm
Weight: 14.9 kg
Rotel RMB-1504. Power and Flexibility in a Professional Form Factor
The RMB-1504 is a versatile, high-performance amplifier that blends robust output with refined engineering. Whether you're an integrator seeking rock-solid performance in multi-zone environments or an audio enthusiast demanding clean, high-quality power across several channels, the RMB-1504 is a discrete yet powerful solution that delivers Rotel’s legendary sound quality—zone after zone.
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