Rotel RB-1552 MKII

Stereo Class A/B Power Amplifier

Item #ROTEL:RB1552-MKII
Rotel

Rotel RB-1552 MKII

Stereo Class A/B Power Amplifier

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Overview

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.

Rotel's fanatical attention to detail means the sum is greater than the parts, what they call the Balanced Design Concept. Each aspect of design is carefully considered holistically to result in maximum audio performance; from the selection of an over-sized power supply featuring a highly efficient, low magnetic field toroidal transformer to multiple, high-current bipolar output transistors. Circuit topology is planned, implemented, evaluated, and adjusted to achieve optimum results.

The RB-1552 MKII features independent left and right power rectification stages and decoupling, and is essentially a mono-block design. Further evidence of design overspec 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.

Details & Specs
Model RB-1552 MKII
Continuous Power Output 130W/Ch (All channels driven, 8Ω)
Total Harmonic Distortion (20Hz–20kHz) less than 0.03%
Frequency Respons 10Hz - 100kHz ±0.5dB
S/N Ratio (IHF "A" Weighted) 120dB
Gain RCA: 26.5dB
XLR: 22.5dB
Intermodulation Distortion (60Hz:7kHz, 4:1) less than 0.03%
Damping Factor 450
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
Power Requirements 120V, 60Hz
Power Consumption 400W
Standby Power Consumption 0.5W
BTU Rating 905 BTU/h
Front Panel Height 3U / 5.25" (132.6 mm)
Dimensions (WxHxD) 17" × 5.7" × 13.4"
431 × 144 × 339 mm
Net Weight 27 lbs
12.4 kg
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