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Power amplifiers stereo — Rotel RMB-1504
Description, images, technical data and specifications
Rotel RMB-1504
Image source — © Rotel
The RMB-1504 is a comprehensive four-channel power amplifier from Rotel, built with an exceptional damping factor and a strong signal-to-noise figure. The RMB-1504 brings Rotel's considered engineering to serious multichannel power amplification.
Key specs that matter
Input sensitivity is 1,000mV, with input impedance at 20,000 ohms single-ended. Output power is 4 x 70W into 8 ohms. Gain is 26.5dBu. Frequency response spans a wide 10Hz to 100,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is a strong 115dB, with total harmonic distortion plus noise under 0.03% at 100% global feedback. Maximum power consumption is 450W, with damping factor exceeding an exceptional 200. At 431 x 144 x 443mm and 14.9kg, the RMB-1504 maintains a manageable four-channel power amplifier chassis.
Sound and use context
Expect capable, well-controlled amplification across four channels reflecting the exceptional over-200 damping factor combined with the strong 115dB signal-to-noise figure, suited to multichannel home-theatre or bi-amplified setups.
Pairing
The four-channel configuration suits multichannel home-theatre applications or bi-amplified stereo setups requiring multiple channels of amplification.
Alternatives
Rotel's own RMB-1506 offers a related stereo alternative within the same broader RMB power amplifier catalogue.
Key specs that matter
Input sensitivity is 1,000mV, with input impedance at 20,000 ohms single-ended. Output power is 4 x 70W into 8 ohms. Gain is 26.5dBu. Frequency response spans a wide 10Hz to 100,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is a strong 115dB, with total harmonic distortion plus noise under 0.03% at 100% global feedback. Maximum power consumption is 450W, with damping factor exceeding an exceptional 200. At 431 x 144 x 443mm and 14.9kg, the RMB-1504 maintains a manageable four-channel power amplifier chassis.
Sound and use context
Expect capable, well-controlled amplification across four channels reflecting the exceptional over-200 damping factor combined with the strong 115dB signal-to-noise figure, suited to multichannel home-theatre or bi-amplified setups.
Pairing
The four-channel configuration suits multichannel home-theatre applications or bi-amplified stereo setups requiring multiple channels of amplification.
Alternatives
Rotel's own RMB-1506 offers a related stereo alternative within the same broader RMB power amplifier catalogue.
Specifications
Model name
RMB-1504
Input sensitivity (mV)
1000
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
20 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
4 x 70
Output power (4Ω) (W)
N/A
Gain (dBu)
26.5
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
100 000
Signal to Noise Ratio (dB)
115
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
<0.03
Max power consumption (W)
450
Damping factor
>200
Dimensions (mm)
431 × 144 × 443
Weight (kg)
14.9
Official link
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