Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- Combines solid state punch with the midrange magic of tubes due to its 'tubeD' circuit topology
- Has enough power to drive the vast majority of loudspeakers with ease, outputting 300Wpc into 8 ohms and 500Wpc into 4 ohms
- Offers near-granular finesse and clarity, capturing the snap and rattle of a drum snare, the flutter of a harp, the plink of a harpsichord, or the clap and jingle of a well-struck tambourine
- Transient information was naturalistic—the soft tick of classical guitarist Michael Newman's fingernails upon the strings
- Bass response and retrieval were superb, with very good speed and control
Product Considerations
- The presentation was thicker and lusher than previously heard
- The DragoN's top end was open, if not very airy—a minor deduction
Takeaway: The DragoN is a powerful and versatile amplifier that combines the strengths of both tube and solid-state designs. It can provide both finesse and power, and it can make a listening experience more authentic and enjoyable.
All
DragoN
reviews

Manufacturer details
- Output power: 325/525 8/4 Ohms
- Frequency response: 20Hz - 20KHz ± 1dB
- THD: <0.1% typ., <1% at rated power
- Input sensitivity: .75V RMS
- Input impedance: 30K Ohms
- Dimensions: 12½"W x 5.5"H x 19"D
- Weight: 33lbs. ea.
- Power requirements: 120/240V - 50/60Hz
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- Rogue Audio integrates tubes into hybrid designs using a proprietary "tubeD" topology, incorporating them directly into the output stage and feedback network to shape the Class D sound.
- Rogue prioritizes parts quality and "Made in the USA" manufacturing by utilizing regionally sourced metalwork, top-shelf internal components, and hand-testing each unit before shipment.
Select products
Atlas Magnum III
- Positioning: Positioned as an affordable yet high-performance tube amplifier in Rogue Audio's lineup.
- Description: Features a robust 100 watts per channel of tube power. Includes an Ultralinear/Triode switch, offering flexibility between power and smoothness, which is not available in the more advanced models like the Stereo 100. This makes it ideal for users seeking high-quality sound in medium-sized rooms without breaking the bank, while its compatibility with 4 and 8-ohm speakers ensures broad system compatibility.
Stereo 100
- Positioning: A mid-range offering in Rogue Audio's lineup, providing a balance of power and refinement.
- Description: Delivers 100 watts of tube power with the option to switch between triode and ultralinear modes. Unlike the Atlas Magnum III, it uses KT120 tubes for enhanced power and dynamics. Its high-quality components include Mundorf EVO Oil capacitors.
Medusa
- Positioning: A high-end hybrid amplifier in Rogue Audio's lineup, combining tube and solid-state technologies.
- Description: Stands out with its hybrid design, integrating tube warmth with the power and efficiency of Class D amplification. This unique combination offers a smooth, natural sound with the dynamics of solid-state, setting it apart from the all-tube designs like the Atlas Magnum III and Stereo 100.
Our take on the brand
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Used
Rogue
What if you spend more?
The Nu-Vista 800 was an amplifier that has enjoyed much popularity and use as a high end hybrid integrated over the past few years. Unfortunately, as with all things encompassing modern, as well as more traditional technology, parts were discontinued. The original “retro look” display was suddenly no longer produced at very short notice. We were therefore left with a choice - discontinue a popular amplifier or workaround and replace the original with updated version but as unchanged as possible from the original formula. The Nu-Vista 800.2 measures like a dream but, more importantly, it sounds incredible. It is silky smooth with enormous transients and an effortless feel that is at once relaxing and involving. Of special note how the Nu-Vista 800.2 projects images between the loudspeakers so that you can almost touch them.
Our summary
Product Strengths
- Exceptional build quality and power output meters
- Hugely revealing performer with warm, rich, and smooth sound
- More power than most will ever need
- Dual-mono design with nuvistor tubes for the input stage and solid-state output stage
- New power transformers are rewound to have lower standing flux, making them less sensitive to mains DC offset noise
Product Considerations
- The remote control is difficult to read in poor lighting conditions
- The VU meters are distracting to some
- A very heavy and sizeable unit
- It does not have a phono stage or digital inputs
- Transient response was below that of the best integrated amplifiers, as was its resolution
Comparisons (according to reviewers)
- Vs. Hegel H590: The Hegel H590 offers similar level of performance
Takeaway: The Musical Fidelity Nu-Vista 800.2 is a powerful and well-built amplifier that delivers a smooth, musical, and detailed sound. Its exceptional power and unique nuvistor tube design make it a great choice for audiophiles who want a high-performing and visually impressive centerpiece for their system.
Video review
Our take on the brand
The A35.8 is Primare’s most powerful and flexible multi-channel amplifier, designed to serve the needs of virtually any high-performance multi-channel system through its ability for each pair of channels to be bridged to mono for an incredible level of power delivery and system building options, including 1500 watts of total output in a fully bridged bi-amped stereo configuration. Shipping June 2022!
Our summary
Product Strengths
- The A35.8 provides eight channels of 'unimpeachable Class D power in a fairly compact and very flexible package'
- Flexible configuration options for power output to speakers are available, such as bi-amping and bridging
- Each stereo pair can be bridged separately to make four times 375 watts (8 Ohms) from the eight times 150 watts
- Fault-free sound quality
- High quality fit and finish
- The A35.8 offers flexible connectivity options
Product Considerations
- The 20-amp power inlet is the seldom-seen variety with three horizontal blades
- The speaker output posts are spaced too widely for dual-banana plugs
- Cabling can be tricky
- A high current power cord is needed
- Lower gain is present, though this doesn't necessarily need to be an issue
Comparisons (according to reviewers)
- Vs NAD M28, the A35.8 gets you one more channel and more versatility for a 10% price increase
- Vs Benchmark AHB2, the Benchmark presented a more neutral tonal balance and undistorted soundstage
- Vs NAD C 298 stereo amplifiers, the Primare seemed slightly more forward, often conveying an appealing liveliness
Takeaway: The A35.8 power amplifier is a flexible and versatile product worth considering for anyone seeking a high-quality multi-channel setup. Its ability to bridge channels offers many ways to configure your speaker system.
Video review
Our take on the brand
Our summary
Product Strengths
- The EAR 890 produces 70Wpc in stereo, and can be bridged to 140W in monoblock
- Neutral sound that gets out of the way and lets the user enjoy the music
- Complex and dense music textures are handled with ease, and dynamically demanding passages are sailed through
- Articulate midrange
- Detailed and realistic bass
Product Considerations
- Removing/installing tube cages is difficult and time-consuming
- The loudspeaker binding posts are positioned too close to the output transformers, making it hard to tighten them properly
- Some assembly work appeared amateurish, specifically the use of silicone in various locations, such as fastening chassis wires
- The amplifier can operate quite hot
- May not have as much bass impact compared to solid state amps
Comparisons (according to reviewers)
- The EAR 890 monoblocks achieve SET-like definition along with the authority and swagger necessary for most full-size speaker systems, when compared to Cary Audio 300B SET amps
- The EAR 890 is as textured as the top LAMM designs, but with noticeably better neutrality and more power
- The EAR 890 surpassed the deHavilland KE50As with a more articulate midrange, producing more color and separation in the microtones of instruments
Takeaway: The EAR 890 is easy to set up and sounds good with very little tweaking, making it easy to just sit back, relax, and enjoy the music. It's a good choice for people who want a tube amp that is both musical and powerful for their home listening experience.
Video review
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Our summary
Product Strengths
- Delivers amazing quality of sound and detail
- Bulletproof amplification
- Has a rhythmically soulful sound with a tremendously rich and natural midrange
- The A51's bass is well-defined, extremely textured, and robust
- With 250 watts on tap, the Parasound A51 will power virtually anything
Product Considerations
- Due to its class A/AB design, the A51 does get a bit warm and should be installed in a properly ventilated space and/or rack
- The A51 is large and heavy, and is best moved and/or positioned by two people
Comparisons (according to reviewers)
- Compared to Rotel, the Rotel makes the M&K Sound system slightly bright with a bit of sibilance, while the Parasound is more neutral
- Compared to Acurus A250, the Parasound had tighter bass, which is probably attributed to a better damping factor
Takeaway: The Parasound Halo A51 is a high-performance amplifier with great sound quality, detail, and build quality, making it an excellent choice for audiophiles and home theater enthusiasts. Its ability to deliver power and control to speakers makes it a valuable addition to any high-end audio system.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Powerful enough to drive the vast majority of loudspeakers with ease, outputting 300Wpc into 8 ohms and 500Wpc into 4 ohms
- A level of near-granular finesse and clarity
- Micro-dynamics are reproduced, capturing the snap and rattle of a drum snare, the flutter of a harp, the plink of a harpsichord, or the clap and jingle of a well-struck tambourine
- Timbral and textural contrasts between instruments was nothing less than exacting
- The Rogue resolved the full character of lengthy instrumental and acoustic sustains, including the final decay of the immense bass drum, right down to the tactile ripple of its drumhead
Product Considerations
- Top end was open if not very airy
- The sound presentation was thicker and lusher than previously heard
Takeaway: The Rogue Audio DragoN offers plenty of power and resolving ability. It is a splendid piece of electronics that can grace any system.
Video review
Our take on the brand
Our Summary
Product Strengths
- Significant tube power for the price, being made in the US by a real audio company
- Sound quality reaches well beyond expectations of the price point with custom wound output transformers, boutique resistors and capacitors, along with four matched KT120 tubes per monoblock
- Excellent macro/micro dynamic shading
- Fantastic mid-bass through the lower midrange
Product Considerations
- The thin metal plates covering the amp's surfaces seemed a bit flimsy, ringing—and even rattling—when pinged with a fingernail
- Distinguishing the Pos+ from the Neg- symbols on the speaker posts is difficult
- The dials on the potentiometers are very small, and the tubes are very hot
Comparisons (according to reviewers)
- Compared to the Pass Labs XA30.5 two-channel amplifier in the article review
Takeaway: The Rogue Audio M-180 monoblock amplifiers offer a high-powered tube amp experience with impressive sound. They are dynamic, satisfying, and accurate, making them a great choice for those seeking a cost-conscious option.
Video review
Our take on the brand
Our Summary
Product Strengths
- The M23's build quality feels solid and elegant, with impressive small design details
- The sound is striking in its purity and clarity
- It offers up to three levels of gain, switchable on the back panel, to best fit the system
- It provides a clear sound without sounding hard
- It features Purifi Eigentakt Class D amplification, which provides virtually unmeasurable distortion levels
Product Considerations
- The bass is clean but may be perceived as a little on the cool side and not as 'wompy-sounding'
- The M23 is not a forgiving amplifier that makes everything sound sweet and wonderful—it's not for those seeking a soft and mellow sound
- Bridging with speakers below 5 or 6 ohms is not recommended, as the amp will current limit and potentially shut down
- The reviewer found ergonomical challenges using fancy speaker cables in bridged mode due to wide terminal spacing
- The capacitive touch power button can accidentally trigger
Comparisons (according to reviewers)
- Vs Bel Canto C6i: The M23 offered a layer of refinement and better reproduction of the recording space
- Vs Pass XA25: The M23 had more transparent sound and detail, especially in the treble and upper mids, but lacked the organic quality of the XA25
- Vs HiFi Rose RS 520: The M23 sounded cleaner and had better separation/depth, HiFi Rose seemed to have an EQ built-in, emphasizing midrange and bass
- Vs NAD C298: The M23 is more neutral, deals with decay more naturally, and has better casework, making it look high-end
- Vs Anthem M1 monoblock amplifiers: The M23 was slightly more transparent throughout the entire frequency range
- Vs Bryston 4B 3: The Bryston had more grunt but the M23 is more neutral
Takeaway: The NAD M23 is a powerful and precise amplifier that delivers clean and clear sound, making it a great choice for audiophiles who want to hear their music as accurately as possible. It is especially well-suited for those looking to build a high-end system around a quality preamp or DAC.
Video review
Our take on the brand
Our Summary
Product Strengths
- Delivers ample, clean, and dynamic power to all channels, ensuring speakers reach their full potential
- Designed by John Curl, featuring Class A/AB circuitry for a balance of warmth, richness, efficiency, and punch
- Pleasing sound for dialogue and music, with very high-quality and detail
- Versatile, suitable for both movies and music, with a low noise floor for quiet passages and great transparency—that doesn't color the sound
- Built to last, with high-quality internal components
- Signal-sensing power-on mode can be fussy and may require adjustment
Product Considerations
- Super heavy and large, potentially requiring rearranging a system or dedicated rack space
- Only available in anodized black
Comparisons (according to reviewers)
- The A52 Plus has bigger parts and bigger power than the Outlaw Model 5000, including balanced XLR connections
- A52 Plus is the 'teenager' compared to the elder Parasound A51
- Parasound A52+ sounds better, is more accurate, and more powerful than the Denon receiver's amplifier section
Takeaway: The Parasound A52+ Halo is a versatile and powerful amplifier that delivers clean, dynamic sound for both home theater and music systems, with a build quality designed to last. This is a worthy investment for audiophiles and home theater enthusiasts who seek high-quality audio performance.
Video review
Our take on the brand
Our Summary
Product Strengths
- Exceptionally transparent sound output quality
- Exceptionally powerful, capable of outputting 500W into a 4-Ohm load
- Delivers a remarkably clean, transparent sound with very little noise or distortion
- The amplifier's ability to reproduce bass is awe-inspiring and delivers deep, powerful bass without distortion
- Runs cool and weighs very little for its sound output, making it easy to move around
Product Considerations
- Options can be a little pricy, such as the 12v trigger and RCA inputs
- The Starkrimson Stereo Ultra may lead to further system upgrades
- Depending on your sources, the Starkrimson Stereo Ultra will play exactly what you feed it, good or bad, and if your source components are slow, the Starkrimson Stereo Ultra will not speed them up
- Power on only after all connections are properly made, including the power cord, analog inputs, and speaker outputs, and wait five minutes after powering it off before removing any of the connections
Comparisons (according to reviewers)
- Compared to the Krell S550i integrated amp, the Starkrimson Stereo Ultra showed a much faster and finer resolution of the upper frequencies of the human voice and a far greater ability to play more of the microdetails of a recording
Takeaway: The Starkrimson amplifier is well-built and provides a level of speed and transparency to hifi music that makes listening to music very fun. Its GaN modules can be upgraded and it is available in several configurations.
Video review
Our take on the brand
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