Rotel RB-1590 Stereo Power Amplifier

$4,769 $5,299
By Rotel


Power - refined, detailed, and plenty of it. Rotel's new Class AB stereo power amplifier is rated at 350 Watts per channel into 8 ohms, both channels driven. That is a lot of power, but larger listening rooms or less sensitive loudspeaker designs require it to bring out the best possible performance and attain realistic audio dynamics.

The impressive capabilities of this amplifier begin with a solid foundation consisting of twin, massive toroidal transformers custom-made by Rotel. These transformers are just part of a rock-solid power supply that includes eight special British made BHC capacitors, known for their low loss and quick response times. These components will continue to supply all of the voltage and current requirements needed, even under the most difficult load conditions.


  • 2 x 350 Watts of robust power
  • Class AB amplifier design
  • Massive power supply using dual toroidal transformers
  • High quality slit foil capacitors made in Britain
  • Balanced XLR inputs

But power unrefined has never been a Rotel design goal. Every aspect of circuit design has been carefully considered and each component has been rigorously selected after extensive listening sessions. The circuit topography has been laid out in a true monoblock design ensuring maximum signal separation and improved stereo imaging.

Features include: XLR balanced and RCA input connections, two pairs of 5-way speaker binding posts, 12-volt trigger control, thermal protection circuitry, dual staged power-on relay to reduce surge current and extend longevity, and a detachable IEC power cord all in a 5U chassis with rack ears included.


  • Amplifier Class AB
    Continuous Power Output 350 W/Ch (All Channels Driven, 8Ω)
    Total Harmonic Distortion (THD) 20 Hz – 20 kHz <0.03%
    Frequency Response 10 Hz - 100 kHz ±0.5 dB
    S/N Ratio (IHF "A" Weighted) 120 dB
    Gain RCA: 37.5 dB, XLR: 23.5 dB
    Intermodulation Distortion (60 Hz:7 kHz, 4:1) <0.03%
    Damping Factor 300
    Speaker Impedance 4Ω Minimum
    Input Sensitivity Line Level Inputs (RCA): 2.2 V, Line Level Inputs (XLR): 3.5 V
    Input Impedance Line Level Inputs (RCA): 12 kΩ, Line Level Inputs (XLR): 100 kΩ
    Channel Separation >50 dB
    Dimensions, Weight & Power
    Dimensions (W x H x D) 431 x 237 x 454 mm (17" x 9.75" x 17.9")
    Front Panel Height 5U / 221 mm (8.75")
    Power Requirements 230 V, 50 Hz
    Power Consumption 800 W
    Standby Power Consumption 0.5 W
    Net Weight 38.1 kg (84 lbs.)
    BTU Rating (4Ω, 1/8th Power) 2100 BTU/h