Stereo Amplifiers

RB-1552 MkII

RB-1552 MkII is built upon the same platform as the RB-1582 MkII with only a slightly smaller power output capability at 2 x 130 Watts.

Power2 x 130 Watts of
robust power

Class ABClass AB amplifier

CapacitorHigh quality slit foil
capacitors made in

XLRBalanced XLR inputs

Rack MountRack ears included

Engineered with care.

RB-1552 MKII Internal View

Dimensions (W × H × D)
431 × 144 × 339mm
17" × 5.7" × 13.4"
Front Panel Height
3U / 132.6mm (5.25")
Power Requirements
120V, 60Hz
Power Consumption
Standby Power Consumption
Net Weight
12.4kg (27lbs.)
BTU Rating (4Ω, 1/8th power)
905 BTU/h


Continuous Power Output
130W/Ch (All channels driven, 8Ω)
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
Product Description 

The RB-1552 MkII is a 130 Watt per channel class AB amplifier. It is engineered to be powerful and robust, yet able 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-1552 MkII 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.

More Specifications 
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

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