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.
All
Volcano
reviews
Manufacturer details
- Power: 70 W into 8 ohms / 100 W into 4 ohms
- Bandwidth: 5 and 80,000 Hz
- Phono stage: MM 47K 40 db
- Mosfet modules: EXICON UK Mosfet manufactured
- Capacitors: Nichicon Japan
- Resistors: Vishay Dale
- Phono module: Transistor NOS from the 70s
- Resistors: Ohmite made in the USA
- Power supplies: with Nichicon Japan capacitors
- Connectors: High quality connectors
- IEC connector: Furutech
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:
Select products
TK One 211-i
- Positioning: The entry-level integrated tube amplifier tailored for affordability and simplicity.
- Description: Built with 211 tubes and ECC82 preamp tubes in a compact, point-to-point construction ideal for small rooms and straightforward setups. Compared to the KT150 or 6550 variants in the TK One line, it represents a more accessible option, and relative to the TK Two series, it offers fewer functionalities and lower power output for budget-conscious buyers.
TK One KT150-i
- Positioning: A mid-range integrated tube amplifier from the heritage classic range.
- Description: Features KT150 power tubes in a single-ended design with point-to-point wiring and a solid wood finish that provides reliable performance. In comparison to the entry-level 211-i, it offers refined audio qualities, while against the more advanced 6550 variant, it represents a balanced choice.
TK One 6550-PSE
- Positioning: A premium integrated amplifier from the heritage classic lineup featuring 6550 technology.
- Description: Uses 6550 power tubes in a handcrafted, point-to-point built design that delivers a distinct tonal character and clarity. When weighed against the KT150-i, it offers upward refinement in sonic detail, yet it remains less complex than the TK Two series for users who prioritize traditional tube warmth with moderate output.
TK Two KT150-PSE
- Positioning: A high-performance integrated tube amplifier in the heritage evolution series.
- Description: Uses four KT150 tubes in a single-ended parallel design with automatic bias, a VU meter, and remote volume control to deliver improved power and control suited for larger rooms. Compared to the TK One models, it provides enhanced functionality and performance, while it remains a step below the flagship 211-PSE in terms of output and manual control options.
TK Two 211-PSE
- Positioning: The flagship integrated tube amplifier in the evolutionary lineup with maximum power output.
- Description: Uses a combination of four 211 tubes and three 6SN7 tubes with a manual bias system featuring precision controls, resulting in groundbreaking sonic authority ideal for larger spaces. Relative to the TK Two KT150-PSE, it offers higher output and detailed manual adjustments, and when compared to the TK One offerings, it delivers more advanced features and increased power for discerning users.
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Used
Tektron
What if you spend more?
Features Matched tubes: 211 x 2 – 6SN7 x 2 Inputs: 3 line inputs rca + 1 xlr Signal input: 400 mV for max power Outputs: 19W / Channel Bias: automatic Volume: Stereo volume control with high quality potentiometer with remote control Connectors: Input connectors high quality Outputs impedance: 8 ohm (other impedance available upon request) Frequency range: 14 – 36.000 Hz Power Supply: 100/115/230/240 VAC – 50/60Hz. Other voltage are available upon request.
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Product Strengths
- Beautifully crafted with Italian manufacturing traditions integrating form with style
- Offers a warm and balanced mid-range, a fulsome projection, and reproduces authentic resonance
- Macrodynamics are represented with a clear, yet golden glow typical of SET amps—but with a bonus from the 211 power tubes
- Creates a substantially open and spacious soundstage, augmenting the perception of depth and instrument placement
- Renders the graininess of the violas and the cellos beautifully, which sounds natural and musical
Product Considerations
- The expense of replacing tubes is a serious concern
- SET amps require speakers of very high sensitivity (93dBs and above)
- The bass is perhaps slightly muddied in spots
Takeaway: The Tektron Italia Neptune is a sophisticated Italian-made amplifier where design and function follow the higher spirit of beauty and style. The engineering offers the best of 'tube' consciousness and listening experience.
Video review
Our take on the brand
Features Matched tubes: 2A3 x 2/4 (OR 45 x 2/4, OR 50 x 2/4, OR 300B x 2/4) – 6SN7 x 2 – 5V4 x 2 – 6X5 x 1 Inputs: 3 line inputs Signal input: 400 mV for max power Outputs: 1.6W / Channel with one 45 — 3.6W / Channel with two 45 3.5W / Channel with one 2A3 — 7W/ Channel with two 2A3 5W / Channel with one 50 — 10W with two 50 7W / Channel with one 300B — 14W / Channel with two 300B 9W with one 300B XLS / Channel — 18W / Channel with two 300B XLS Outputs impedance: 4 – 8 ohm (other impedance available upon request) Frequency range: 15 – 35.000 Hz Power Supply: 100/115/230/240 VAC – 50/60Hz. Other voltage are available upon request
Product Strengths
- A variety of tubes can be used (45, 2A3, PX4, PX25, 300B, or 300B XLS) to produce different power outputs (1.5 to 22wpc)
- It can operate in single-ended (SE) or parallel single-ended (parallel SE) mode
- It is very adaptable—allowing for changes to input tubes and 5AR4 rectifiers to alter the amp's sound
- Built-in bias meters and pots allow for re-biasing when changing tubes
Product Considerations
- The right speaker load (high output impedance) is needed to perform optimally
- Single-ended amps shun negative feedback, which would lower their output resistance
- Speakers not well-suited for high output impedance amps may experience premature bass roll-off and a rising presence response
Takeaway: The TK2A3/300PSES-i Ref amplifier offers a lot of flexibility for tube rolling and sound customization. It is well-suited for high-efficiency speakers.
Video review
Our take on the brand
The ULTIMA INTEGRATED is a class-leading 125-watt integrated amplifier benefitting from the latest dual-feed-forward error-correction topology, Chord Electronics' legendary proprietary ultra-high-frequency power supplies, plus an unmistakable industrial aesthetic.
Designed by Chord Electronics' founder, owner and chief engineer, John Franks, the advanced ULTIMA circuit monitors and immediately corrects audio signals before the output stage, for astonishing signal accuracy from a one-box integrated device. The ULTIMA INTEGRATED also takes advantage of the very latest developments in advanced low-distortion power supplies – devices offering exceptionally low noise and outstanding amplifier operation – for even greater fidelity.
A four-input design, one fully balanced and three unbalanced, all enjoy individual buffering and are selectively filtered against potential ingress from radio frequency interference; selection switching is via microprocessor-controlled sealed relays.
The ULTIMA INTEGRATED is the first new Chord Electronics integrated amplifier for seven years and remains the sole full-width integrated model in the range. All metalwork is precision-machined from solid aircraft-grade aluminium, including Chord Electronics' iconic Integra Legs. The fascia sports a 28-mm-thick front panel with a perfectly symmetrical aesthetic, centered around a spherical power on/off control with polychromatic lighting, flanked by illuminated volume and balance controls.
Product Strengths
- Astonishing agility, precision, and clarity
- Spacious and uncluttered presentation
- Sturdy build
- Combines the precision and speed of older designs, but renders the sound with a naturalness
- Provides plenty of power without compromising on detail or clarity
Product Considerations
- Most rivals are better equipped
- Can sound thin if partnered poorly
- Could deliver stronger dynamic contrasts
- The balance control has no center detent or marked position
- No digital inputs or Wi-Fi
Comparisons (according to reviewers)
- Vs Mark Levinson's No.5805 or PMC Cor, some may prefer the warmer, fuller presentation of rivals
- Vs Naim Supernait 3, it doesn't track the music's rhythms with the skill of the Naim
- Vs Rega Elex-R Mk3, the Chord Ultima Integrated delivered undeniably elevated sound in all respects
- Vs Bryston 7B 3 monoblocks, midrange, especially with vocals, was more lifelike through the Ultima Integrated—smoother and more liquid
- Clear preference for Chord Ultima, especially the dynamics
- Vs Accuphase E-270, the Chord is more natural and closer to the CH Precision system in terms of tonality and neutrality
Takeaway: The Ultima Integrated offers much of the performance of Chord's pre/powers in a neat one-box solution, presenting a refreshingly straightforward product to use. The Chord Ultima Integrated is a thrilling and soothing amplifier capable of weaving a wonderfully spellbinding sound.
Video review
Our take on the brand
Product Strengths
- Dual-mono design delivers 303W per channel into 8 ohms, providing power and control for any speaker
- High damping factor of over 4000 ensures absolute control over speaker drivers, resulting in pristine sound reproduction
- New DAC implementation based on ESS Sabre 9038Q2M chip offers pure audio fidelity without any resampling or upsampling
- Supports streaming via Apple AirPlay 2, Spotify Connect, Tidal Connect, and UPnP/DLNA
Product Considerations
- Does not have a phonostage
- Lacks an HDMI jack with ARC
- The supplied RC10 remote is slender with tiny buttons
- Weighs 22kg
- Minimalist design may be a bit bland for some
Comparisons (according to reviewers)
- Vs Bryston B135 SST 2, the H600 delivers more effortless presentation at high output
- Vs McIntosh MA9500, the H600 has bigger sound, is crisper and has higher resolution
Takeaway: The H600 is a versatile and powerful integrated amplifier that excels in delivering high-quality audio from both digital and analog sources. Its robust amplification makes it a great choice for audiophiles seeking a simplified yet high-end audio solution.
Video review
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What competes at this price?
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Our Summary
Product Strengths
- Addictive sound signature, unlike any other amp, with otherworldly instrument and voice reproduction
- Delivers serious magic with Fleetwood Deville and Klipsch Heritage speakers, revealing obscure details and creating a massive soundstage
- Dynamics for days
- Combines the qualities of a nice SET amp without the downsides, like noise or tube replacement
- Exceptional build quality and design with high-quality parts
- Only has two RCA inputs, no XLR balanced connections
Product Considerations
- Heavy speaker cables can cause the amp to tilt
- The volume dial functions as a gain dial, which may be different than what some users are accustomed to
- May not be suitable for hard-to-drive speakers in the 85db range that dip into 2–4 ohms
Comparisons (according to reviewers)
- The AMP23R offers more texture, layering, mid-bass, and vocal presence than Nagra INT
- The AMP23R is more organic, ethereal, and dynamic than Kinki Studio EXM1
- It sounds better than the Vinnie Rossi L2iSE, so long as the speakers are easy to drive
- The Enleum has more delicacy and finesse than Pass Labs and Cary Audio
- The AMP23R stacks up with the finest gear such as ampsandsound Bryce monoblocks
- Pass Labs First Watt SIT-3 offers a bit more organic, warmer presentation
Takeaway: The Enleum AMP-23R is a small but mighty integrated amplifier with a unique and addictive sound signature, and it is built with high-quality components. It's a great choice for those with sensitive speakers looking for a reference-quality system in a compact package.
Video review
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Our Summary
Product Strengths
- Exceptional build quality with a blend of expertly crafted wood and metal, creating a visually striking and durable statement piece
- Dynamic, rich, and effortless sound with excellent detail, texture, and the right amount of tube magic
- Powerful output capable of driving demanding headphones while maintaining clarity and control
- Versatile performance with a variety of headphones (dynamic and planar) due to its output transformer design, often improving sound for warm or neutral headphones
- Value added by its ability to be used as a pre-amplifier in a stereo system
Product Considerations
- Large size and weight (around 15kg) require ample desk space and sturdy furniture
- Generates heat, which could be a concern in warmer environments without adequate ventilation
- Accidental switching of 'On/Off' is possible due to the touch-sensitive bar in the front not being intuitive, so use with care around pets
- Too powerful for some very sensitive IEMs, potentially resulting in overwhelming sound or audible hiss, though this is not the intended design for the amplifier
Comparisons (according to reviewers)
- Vs HIFIMAN Susvara, Envy empowers Susvara's natural presentation while giving it all the dynamics and slam needed
- Vs Cayin HA-300MkII, Envy exhibits more linear mid-to-high frequencies and offers a more transparent sound, while HA-300MkII has a warmer—more engaging midrange
- Vs AURIS Headonia 2A3, Envy performs at the same level, with technically incredibly strong aspects
- Vs Octave V 16, Envy completely demolishes the V 16 when it comes to energy, control, timbre, and resolution
- Vs Ferrum OOR, Envy is more powerful sounding, while also being more detailed with better tonality
Takeaway:
The Felix Audio Envy is a high-end headphone amplifier for audio enthusiasts who want the best quality sound to bring out the magic in their favorite headphones. Its stunning design and versatile performance make it a worthwhile addition to any serious audiophile setup.
Video review
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Our Summary
Product Strengths
- Combines comprehensive functionality, connectivity and usability with good performance, and elegant design
- Exceptional sound quality is described as refined, muscular, detailed, confident, transparent, and natural
- Easy to use, has a great control app, a remote, and an intuitive interface that removes itself from the system
- Well-built with premium materials, including CNC-machined aluminum casework, finned heat sinks, and a hefty toroidal transformer
- Has a musicality that makes it hard to be objective about, the music flows as you listen and makes you want to repeat
Product Considerations
- Overheating may occur due to undersized heatsinks under demanding conditions
- Naim's speaker connectors may be unique, although banana plugs are an acceptable workaround
- Although a detail performer, it isn't the quietest digital source or imaging performer in the market
Comparisons (according to reviewers)
- Vs Uniti Star: The Nova has a more substantial amplifier section, with greater current delivery and stability into tricky loads
- Vs SuperUniti: The Nova offers a more dynamic, detailed, fluid, and natural sound–with a bigger soundstage
- Vs Chord Electronics CPM2800 MkII: The Nova is closer spiritually to separates like the Chord CPM2800 MkII than to other all-in-one systems
- Vs NAD M10: The Naim Unit Nova has full unwavering control of the entire frequency range, from the deepest chest-thumping bass to the most delicate highs
- Vs Naim Uniti Atom: The Nova has more power to get a good result in bigger rooms, whereas the Atom needs to be in a smaller room
Takeaway: The Naim Uniti Nova is a well-designed and easy-to-use all-in-one system that combines comprehensive functionality with very good sound quality. It's a good choice for those who want a convenient and high-performing audio solution without the complexity of separates.
Video review
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Our Summary
Product Strengths
- Delivers music with a very pure, low-grain tonality, not compromised by frequency response or dynamic trickery
- Beautifully crafted with a traditional, recognizable Luxman aesthetic and excellent build quality
- Has enough power to drive a wide range of speakers
- Possesses a good moving magnet (MM) and moving coil (MC) phono stage
- Features the new Luxman Integrated Feedback Engine System (LIFES) amplifier topology
Product Considerations
- The volume control can be finicky and hard to dial in
- Some reviewers wished it had separate phono inputs for MM and MC cartridges, instead of a selectable one
Comparisons (according to reviewers)
- Versus Hegel H590, the Hegel has more relaxed sound, while the Luxman has a more forward presentation, brilliance and sheen—the Hegel had better bass control
- The 507Z is a step up from the Luxman L-507UX2 with improved aesthetics, including a new LED display
- Versus the Luxman L-590II (Class A), the L-590II is slightly warmer, but less dynamic
- Some 509X owners preferred the Luxman L-507Z
Takeaway: The Luxman L-507Z is a beautiful and well-built amplifier that produces pure, high-quality sound. It has enough power for most speakers and offers versatile features like tone controls and a phono stage, making it a great choice for an all-in-one audio solution.
Video review
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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
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