Rotel RMB-1504 4-Channel Distribution Amplifier

Description Features Specifications The RMB-1504 Class AB 4-channel amplifier delivers on the ongoing commitment of performance without compromise building on over 60 years of Rotel amplifier design and in-house manufacturing of Hi-Fi electronics. This amplifier provides the power and refinement suited for home theater installations as well as custom installation multi-room audio solutions. 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 60 years of Rotel amplifier engineering, design and manufacturing experience. This amplifier provides power and refinement for object based overhead speakers in home theater 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  (rack ears included in some markets) 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. Features: 70 watts per channel into 8 ohms (20-20,000 Hz) at 0.03% THD with all channels driven 115 watts per channel into 4 ohms Class AB design Custom made toroidal transformer for stable, noise-free performance Frequency response: 10-100,000 Hz (±1dB) Signal-to-noise ratio: 115 dB Thermal and overcurrent protection circuitry Detachable power cord Connections: Two unbalanced stereo RCA inputs for A/B channel pairs Independent input level controls on front panel (adjustable via small flat-blade screwdriver) Mono switch links left and right channels for feeding both with a single mono RCA connection Link switch sends A channel input signals to the B channels Unbalanced stereo RCA signal output link Passes left/right A channel input signals to a connected component 5-way binding post terminals for A/B speakers 3.5mm 12-volt trigger in/out with signal sensing switch Rack mounting ears included Specifications: Dimensions (W × H × D) 431 × 144 × 443mm 17" × 5.7" × 17.5"   Front Panel Height 3U / 132.6mm (5.25")   Power Requirements 120V, 60Hz   Power Consumption 450W   Standby Power Consumption Standby        < 0.5W Signal Sense  1 W   Net Weight 14.9kg (32.8lbs.)   BTU Rating 810 BTU/h Continuous Power Output 4 x 70W/Ch (All channels driven, 8Ω)   Total Harmonic Distortion (THD) (20Hz–20kHz, 8Ω) <0.03%   Frequency Response 10Hz - 100kHz ±1dB   S/N Ratio (IHF "A" Weighted) 115dB   Gain 26dB Intermodulation Distortion (60Hz:7kHz, 4:1) <0.03%   Damping Factor >200   Speaker Impedance 4Ω minimum Input Sensitivity 1V   Input Impedance 20kΩthe