Rotel RB-1582 MkII
The RB-1582 MkII brings iron-fisted bass control and effortless macrodynamics to a smooth, slightly warm presentation. Isaac Adams found its 200W-per-channel muscle delivers deep, accurate low end and superb transients without treble grain. Balanced connectivity, robust construction and a relaxed, long-session-friendly voice make it a compelling partner for demanding speakers.
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Nicely Roasted
Sound Quality
88/100
Build Quality
90/100
Value for Money
89/100
Pros
Deep, tightly controlled and powerful bass, with ample current for demanding speaker loads.
Smooth, slightly warm, fatigue-free voicing with clean treble free of edge or grain.
Effortless macrodynamics and strong transients; measured output exceeded its rated power before clipping.
Robust build with balanced and unbalanced inputs, substantial binding posts, rack ears and 12V trigger connectivity.
Cons
Fine inner detail and microdynamics trail more revealing reference amplification.
Understated spatial presentation offers limited ambient openness for listeners seeking expansive imaging.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 88/100
The RB-1582 MkII is described as smooth, refined and powerful, with particularly convincing bass control and effortless large-scale swings. Its forgiving, slightly warm presentation prioritizes ease and long-session comfort over ultimate low-level retrieval and spatial expansiveness.
Transparency Resolution
85/100
The presentation is clean and free from treble grain or edge, but the reviewer heard some loss of fine inner detail and microdynamics versus a higher-end reference amplifier. It favors a soft, polished window onto recordings rather than maximum analytical resolution.
Tonal Balance Musicality
92/100
Review listening found a smooth, slightly warm and buttery character that remains non-fatiguing over long sessions. Although the treble was somewhat subdued, the amplifier conveyed the sultry atmosphere of recordings effectively and maintained an appealing sense of refinement.
Dynamics
94/100
Macrodynamic demands were handled effortlessly, with lots of power available for superb transients. The reviewer also found output exceeded the published rating just before clipping, while bass control brought deeper, more accurate and more powerful low frequencies from the speakers.
Soundstage Imaging
82/100
The review characterizes the spatial presentation as understated, with little sense of ambient space on the cited recording. This suits the amplifier's smooth, polite voicing, but listeners seeking especially open, atmospheric staging may want more.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
90/100
The reviewer calls the construction robust, and the amplifier combines balanced and unbalanced inputs, substantial dual speaker binding posts, rack-mount ears, and 12V trigger input/output. Its 200W-per-channel rating into 8 ohms, increased output into 4 ohms, and strong damping factor support the purposeful high-current engineering.
Value for Money
89/100
At the reviewed $1,999 price, the reviewer felt its high-quality components brought a taste of elite-audiophile amplifier construction at a lower cost. It was specifically recommended for systems needing more power or home-theater main channels, especially for listeners who value refinement and ease over maximum detail.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
- Dimensions
- 431 × 144 × 407 mm 17" × 5.7" × 16"
- Front Panel Height
- 3U / 132.6 mm (5.25")
- Power Requirements
- 120 V, 60 Hz
- Power Consumption
- 550 W
- Idle power consumption
- 60 W
- Standby Power Consumption
- 0.5 W
- Net Weight
- 17.6 kg (39 lbs.)
- BTU Rating
- 1104 BTU/h
- Power Output
- 200 W/Ch (8 Ω) 323 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
- 116 dB
- Gain
- RCA: 26.5 dB XLR: 22.5 dB
- Intermodulation Distortion
- < 0.03%
- Damping Factor
- 800
- Speaker Impedance
- 4 Ω minimum
- Input Sensitivity
- Line Level Inputs (RCA): 1.9 V Line Level Inputs (XLR): 3.0 V
- Input Impedance
- Line Level Inputs (RCA): 12k Ω Line Level Inputs (XLR): 100k Ω
Manufacturer's Description — Rotel
At 2 x 200 Watts per channel and utilizing Rotel's Balanced Design Concept for superior performance, the RB-1582 MkII is a compelling stereo amplifier.
Rotel’s next largest stereo amplifier at 200 Watts per channel provides the massive current to drive the very largest Hi-Fi systems effortlessly. And like its smaller brother, the RB-1582 MkII has been designed to excel at resolving the subtle details in music as well as supplying the brawn required for extremely dynamic passages. It is able to achieve this difficult dual requirement because of the meticulous attention paid to circuit design and parts selection.
The RB-1582 MkII's high-end performance begins with an extremely large toroidal transformer combined with a total of 60,000µF storage capacity in special “slit foil” capacitors to provide completely stable power to the output stage. Slit foil capacitors have the ability to charge and discharge extremely quickly, thereby ensuring signal fidelity during orchestral crescendos or repetitive kick-drum impacts, for example. Both left and right channel construction are laid out in a mono block design (after the toroidal transformer) and all grounding is terminated in a star pattern on a copper grounding plate to ensure low signal to noise. The output stage is a discrete design that consists of 10 high current bipolar transistors per channel. Input options consist of both balanced XLR and unbalanced RCA connectors.
The RB-1582 MkII stereo power amplifier is yet another outstanding example of Rotel’s Balanced Design Concept and will form the heart of a very impressive stereo or home theater system for years to come.
Verified Dealers
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Authorized dealers for Rotel RB-1582 MkII
- The Music Room — online and in-store — Erie, Colorado, United States (website)
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Abt Electronics — online and in-store — Glenview, Illinois, United States (website)
- Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
- Acoustica — online and in-store — Chester, England, United Kingdom (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- Ahead Stereo — in-store — Los Angeles, California, United States (website)
- All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Alta Fedelta — online and in-store — Lombardia, Italy (website)
and 199 more verified dealers