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Rotel RB-1552MKII Power Amplifier

Rotel RB-1552MKII Power Amplifier


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Rotel RB-1552MKII Power Amplifier

Introducing the RB-1552MkII, a 130 Watt per channel class AB power amplifier. It is engineered to be a powerful and robust, yet able amplifier to extract every last nuance out of even the most complex musical score. 

Notable features of the amplifier include independent left and right power rectification stages and decoupling. The layout is essentially a mono block design. Further evidence of design over-spec is in the selection of premium “slit-foil” capacitors, which provide plenty of reserve energy for extremely dynamic audio passages and are able to quickly replenish themselves due to the nature of their unique design. Input options are balanced XLR or unbalanced RCA connectors.

The RB-1552MkII stereo amplifier has been engineered to provide high-resolution audio performance, yet it is very affordable, as has been the tradition with Rotel electronics for over 50 years.


Dimensions (W x H x D)

431 x 144 x 339mm

17” x 5.7” 13.4”

Front Panel Height

3U / 132.6mm (5.25”)

Power Requirements

230V, 50Hz

Power Consumption


Standby Power Consumption


Net Weight

12.4kg (27lbs.)

BTU Rating (4Ω, 1/8th power)

905 BTU/h

Power Output

130W/Ch (8Ω)

185W/Ch (4Ω)

Total Harmonic Distortion (THD)

(20Hz-20kHz) <0.03%

Frequency Response

10Hz - 100kHz ±0.5dB

S/N Ratio (IHF “A” Weighted)



RCA: 26.5dB

XLR: 22.5dB

Intermodulation Distortion (60Hz:7kHz, 4:1)


Damping Factor


Speaker Impedance

4Ω minimum

Input Sensitivity

Line Level Inputs (RCA): 1.5V

Line Level Inputs (XLR): 2.5V

Input Impedance

Line Level Inputs (RCA): 12kΩ

Line Level Inputs (XLR): 100kΩ