Rotel RB-1552 MkII Stereo Power Amplifier, Silver rear panel, inputs and outputs Rotel RB-1552 MkII Stereo Power Amplifier top view with cover removed showing internal components Rotel RB-1552 MkII Stereo Power Amplifier, Black
Rotel RB-1552 MkII Stereo Power Amplifier, Silver
rear panel, inputs and outputs
Rotel RB-1552 MkII Stereo Power Amplifier top view with cover removed showing internal components
Rotel RB-1552 MkII Stereo Power Amplifier, Black
Rotel

Rotel RB-1552 MkII Stereo Power Amplifier

$1,699.00
$1,499.00
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Rotel RB-1552 MkII Stereo Power Amplifier Key Features: 

  • 130 Watts per Channel (8 Ω) / 185 Watts per Channel (4 Ω) – Provides powerful, dynamic sound capable of driving a wide range of speakers with ease.
  • Class AB Amplification – Combines the warmth and musicality of tube-like sound with the efficiency of solid-state design for rich, natural audio.
  • Dual-Mono Layout with Separate Power Rectification and Decoupling – Ensures channel independence and minimizes interference for pristine stereo imaging and clarity.
  • Premium Slit-Foil Capacitors in Power Supply – Offers ample energy reserves and rapid recharge, supporting demanding peaks without distortion.
  • Balanced XLR and Unbalanced RCA Inputs – Flexible connectivity to suit professional and consumer audio setups.
  • Ultra-Low Total Harmonic Distortion (< 0.03% THD) – Maintains clean, transparent sound free from audible distortion.
  • Wide Frequency Response (10 Hz – 100 kHz ± 0.5 dB) – Captures the full audio spectrum for detailed and accurate reproduction.
  • Muscular Performance with Musical Finesse – Handles complex musical passages with precision, revealing subtle details and dynamic contrasts.

Product Description: 

The Rotel RB-1552 MkII is a class AB stereo amplifier delivering 130 watts per channel, designed to combine muscular performance with remarkable musical finesse. It’s built to handle complex musical passages with precision, bringing out subtle details and dynamic contrasts alike. 

The amplifier features separate power rectification and decoupling for the left and right channels, effectively following a dual-mono layout to ensure channel independence and signal purity. Premium slit-foil capacitors are used in the power supply, offering ample energy reserves for demanding audio peaks and rapid recharge capabilities thanks to their advanced design. Input connections include both balanced XLR and unbalanced RCA options. 

True to Rotel’s long-standing tradition, the RB-1552 MkII offers high-resolution audio performance at a price that remains accessible.

Specifications: 

Front Panel Height

3U / 132.6 mm (5.25")

Power Requirements

120 V, 60 Hz

Power Consumption

400 W

Standby Power Consumption

0.5 W

BTU Rating (4 Ω, 1/8th power)

905 BTU/h

Power Output

130 W/Ch (8 Ω), 185 W/Ch (4 Ω)

Total Harmonic Distortion (THD) (20 Hz – 20k Hz)

< 0.03%

Frequency Response

10 Hz - 100k Hz ± 0.5 dB

S/N Ratio (IHF "A" Weighted)

120 dB

Gain

RCA: 26.5 dB, XLR: 22.5 dB

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

< 0.03%

Damping Factor

450

Speaker Impedance

4 Ω minimum

Input Sensitivity

Line Level Inputs (RCA): 1.5 V, Line Level Inputs (XLR): 2.5 V

Input Impedance

Line Level Inputs (RCA): 12k Ω, Line Level Inputs (XLR): 100k Ω

Dimensions and Weight: 

Overall - 17 x 5.7 x 13.4” (W x H x D)

Product Weight - 27 lbs