Rotel RMB-1504 Distribution Power Amplifier
The RMB-1504 Class AB 4-channel amplifier delivers 70 watts per channel into 8 ohms and 115 watts into 4 ohm loads with the ongoing commitment of performance without compromise building on over 55 years of Rotel amplifier engineering, design and manufacturing experience. This amplifier provides power and refinement for object based overhead speakers in home theatre installations and the demanding drive required for custom installation and multi-room audio solutions.
The 12 volt trigger input and output connections, user selected audio signal sense power control, front panel volume attenuators, audio output link connections, 5-way speaker binding posts and available rack mount kit provides ultimate installation flexibility.
An oversized factory built toroidal transformer and high efficiency capacitors drive an array of high current output transistors ensuring fast transient timing, accurate detail and controlled consistency of low frequency regardless of the loudspeakers load rating or cable run distance. Maintaining crucial timing and energy while delivering effortless power is a signature trait of this amplifier providing increased speaker placement options.
Critical evaluation of the circuit design and meticulous selection of each acoustic audio components ensures accuracy, power and efficiency all coupled with an unsurpassed build quality ensuring this amplifier proudly wears the Rotel name.
Key Features
- 4 x 70 Watts of robust power
- Class AB amplifier design
- Rack ears included
- Automatic signal sensing
- 12 volt trigger input
Engineered with Care
| Amplification | |
| Amplifier Class | AB |
| Continuous Power Output | 4 x 70 W/Ch (All Channels Driven, 8Ω) |
| Total Harmonic Distortion (THD) | 20 Hz – 20 kHz <0.03% |
| Frequency Response | 10 Hz - 100 kHz ±1 dB |
| S/N Ratio (IHF "A" Weighted) | 115 dB |
| Gain | 26 dB |
| Intermodulation Distortion (60 Hz:7 kHz, 4:1) | <0.03% |
| Damping Factor | >200 |
| Speaker Impedance | 4Ω Minimum |
| Input Sensitivity | 1 V |
| Input Impedance | 20 kΩ |
| Dimensions & Weight | |
| Dimensions (W x H x D) | 431 x 144 x 443 mm (17" x 5.7" x 17.5") |
| Front Panel Height | 3U / 132.6 mm (5.25") |
| Power Requirements | 230 V, 50 Hz |
| Power Consumption | 450 W |
| Standby Power Consumption | Standby: <0.5 W, Signal Sense: 1 W |
| Net Weight | 14.9 kg (32.8 lb) |
| BTU Rating (4Ω, 1/8th Power) | 810 BTU/h |
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