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
- Gorgeous casework and beautiful design
- Neutral, clean and transparent sound quality
- Excellent DAC, featuring Burr-Brown chips
- Powerful amplifier section
- The connectivity options are limited
Product Considerations
- High price point
- There are not a lot of inputs
- MM phono stage only
- The feel of the knobs is not good
Comparisons (according to reviewers)
- Vs Leben CS600—the Java Hi-Fi Single Shot sounds less ripe and less rich
- Vs Riviera Labs Levante—the Java Hi-Fi Single Shot sounds much flatter
- Vs Ayre KX-8 Preamplifier/VX-8 Power Amplifier—the Ayre combo offered a greater sense of texture, tone and dimension
Takeaway: The Java Hi-Fi Single Shot Integrated Amplifier combines great sound with an elegant design, and it has enough power to drive most speakers. It is an excellent choice for those who want a high-quality, stylish audio system without the complexity of separate components.
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Manufacturer details
- Dimensions: 44 cm x 41.5 cm x 13 cm (w/d/h)
- Weight: 10.6kgs (23.4 lbs)
- Power Output: 400 watts/8 ohms, 800 watts/4 ohms
- Inputs: 4 x pairs XLR line-level, MM phono (RCA), USB, Bluetooth aptX
- Outputs: 2 x pairs XLR (1 fixed, 1 variable), 1 x headphone output
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:
- Java hifi uses GaN FET (Gallium Nitride) transistors in Class D amplifier circuits, known for their speed, efficiency, and neutral sonic character, effectively eliminating the "sizzle" traditionally associated with Class D amplification.
- Their products feature a highly customizable aesthetic, offering a range of casework finishes and front panel colors to seamlessly integrate into any décor, moving beyond the standard "black or silver box" approach.
- Java hifi incorporates LDR (Light Dependent Resistor) technology in their preamplifier stages, isolating the signal path from control electronics for a shorter, cleaner signal path and vanishingly low distortion.
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Used
Java Hi-Fi
What if you spend more?
Solid 9mm carbon fibre outer casework 2ETI Research Kryo speaker binding posts 3IsoAcoustics Gaia IV feet 4Solid 8mm anodised aluminium front panel 5Innovative inverted PCB assembly for vibration and resonance control of audio circuit 6Dimensions: 44 cm x 41.5 cm x 13 cm (w/d/h) 7Weight: 11.6kgs (25.5 lbs)
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Product Strengths
- Delivers a tight, coherent musical pace with stellar clarity
- Achieves a significant amount of the three-dimensional characteristics of tubes with the sonic slam and control of solid-state amplifiers
- Delivers subtle texture and nuance when required and high sound pressure levels without losing composure
- The amplifier's ability keeps instruments locked in their own spaces without ever losing focus
- Fast and neutral sound that appears to be true to the source
Product Considerations
- The volume knob is not very responsive at first use, which can be annoying initially
- The remote is functional, but not as aesthetically pleasing as the amplifier itself
- The DAC only has a USB input
- It's a fingerprint magnet
- No MC phonostage
Comparisons (according to reviewers)
- The Double Shot power amplifier takes clarity and pace further than the Single Shot integrated, because of its larger, dedicated power supply
- Compared to Boulder or Constellation amplifiers, the Double Shot has the least colored tonality
- Compared to the Merrill/Lab 12 partnership, the Double Shot integrated was perhaps better sounding overall—a little less quick and a little softer around the edges
Takeaway: The Java Double Shot is a stylish and powerful amplifier that delivers neutral and detailed sound. It has useful features like a DAC and phono stage to enjoy all music sources.
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
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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
Our take on the brand
Imagine a sleek, compact design that oozes class. Imagine an amplifier design that packs enough power to comfortably handle even the most demanding of loudspeakers. Imagine a complex yet agile and easy to use fully transparent line stage. Imagine every possible Phono EQ setting available from the comfort of your listening chair. Imagine a highly acclaimed discrete DAC boasting the best specs and sound around. Imagine, combining all of the above!
Reality. Is. Kula!
Kula is an a la carte modular design creating a fusion of highly technical previous accomplishments. The chassis itself is borrowed from the acclaimed Makua preamp, as is the line stage section and its optional phono stage with independent adjustable settings and up to 6 separate inputs. The optional DAC section which also is available in the Makua, is identical to the world-class Tambaqui stand-alone unit and features 5 digital inputs including Roon endpoint and Bluetooth.
Additionally, the Kula incorporates a Mola Mola exclusive amplifier which boast an output of 150 Watts @8 Ohm, doubling into 300 Watts @4 Ohm. Clearly enough power to drive any speaker with ease.
Our summary
Product Strengths
- Exceptional audio quality from its line inputs, optional streaming DAC, and optional Phono stage
- Stunning transparency, commendable focus, and open and airy sound staging
- Inspired and seamless reproduction—with a spark of life quality
- User-configurable phono stage that competes with pricey dedicated boxes
- The DAC module, based on the Tambaqui, rivals many uber-expensive standalone units
Product Considerations
- The Kula gets quite hot during operation, needing a decent amount of ventilation
- The LEDs are very bright, and there is no way of turning them off
- The remote is borrowed from Apple TV and is not refined enough to give decent control over volume
- There is no coaxial digital input
Comparisons (according to reviewers)
- The Kula sounds a little sweeter than Mola Mola Kaluga mono amplifiers
- The Mola Mola Kula sounded like a sibling to Leben CS600
Takeaway: The Mola Mola Kula is a state-of-the-art, all-in-one amplification solution that brings music to life with transparent and life-sized sound. With optional modules, it becomes a highly versatile and elegant solution for audiophiles who want top performance in a single box.
Video review
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What competes at this price?
Our Summary
Product Strengths
- Clean, neutral, and transparent sound signature that neither adds nor takes away from the source material, ensuring high fidelity music reproduction
- Excellent built-in DAC using dual Burr-Brown PCM1794A chips, comparable to some standalone DACs
- Well-implemented built-in MM phono stage, outperforming entry-level outboard phono stages and suitable for higher-end MM cartridges
- Gorgeous casework with customizable finish options, blending wood and metal for an elegant appearance
- High power output (200W into 8 ohms, 400W into 4 ohms) capable of driving a wide range of speakers with ease
- Single Shot only has single-ended RCA inputs, the Double Shot variant is needed for balanced inputs
Product Considerations
- The built-in phono stage lacks loading and gain options, potentially limiting compatibility with some moving coil cartridges
- The DAC section is USB input only and might not be as keen on very high sample rates (above 192kHz)
- Some reviewers would like to see a COAX digital input
- The lights on the front panel might be too bright for some listeners, even though there is a dimmer switch
Comparisons (according to reviewers)
- Vs Ayre 8-Series separates: Ayre provided a greater sense of dimensional fullness
- Vs Leben CS600: Leben coaxes more emotion, because it places more emphasis on tone color and body
Takeaway: The Java Hi-Fi Single Shot is a beautifully designed, all-in-one integrated amplifier that delivers a neutral and transparent sound, suitable for those who appreciate high-fidelity audio and want a streamlined system. Its versatility and excellent built-in components make it a worthwhile investment for a high-quality audio experience.
Video review
Our take on the brand
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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.
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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.
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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.
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