Website author headshot
Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

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

  • Breathtaking wooden chassis with state-of-the-art build quality and well-machined aluminum faceplate
  • Features LECUA (Luxman Electronic Controlled Ultimate Attenuator), a computerized volume control that adjusts volume precisely with minimal sound quality deterioration
  • Provides excellent detail retrieval and clarity, making it easy to differentiate recordings
  • High-quality, quiet built-in phono stage supports both MM and MC cartridges
  • Transparent voicing, dynamic, and punchy sound

Product Considerations

  • Low quality manual does not discuss build or design intent
  • Speaker matching is important, and should be paired with 90+ dB speakers
  • Voiced to have a fairly neutral-sounding and dynamic character, the sound is not warm
  • Plastic inserts on the knobs were not favored by one reviewer
  • All connectivity on the rear panel are RCA terminals, as there are no XLR connections

Comparisons (according to reviewers)

  • Vs Audio Note L3 EL84: It has better rhythmic and timing acuity, but the Audio Note has more visceral and physical deep-bass notes
  • Vs Marantz/Margules combo: It gives you tube dimension, precise detail, and top-end crispness, while the Marantz combo is grainless to a fault

Takeaway:

The Luxman LX-380 is a beautifully crafted, vintage-looking integrated amplifier that delivers a transparent, dynamic, and detailed sound. Its flexibility with tone controls and phono stage, combined with its impressive build quality, makes it a solid choice for audiophiles.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

All

LX-380

reviews

[{"title":"Luxman LX-380 Integrated Amplifier","link":"https://www.soundstagehifi.com/index.php/equipment-reviews/1402-luxman-lx-380-integrated-amplifier","source":"SoundStage! Hi-Fi","datePublished":"2020"},{"title":"Luxman LX-380 Integrated - A Second Take","link":"https://positive-feedback.com/reviews/hardware-reviews/luxman-lx-380-integrated-a-second-take","source":"Positive Feedback","datePublished":"2019"},{"title":"Luxman LX-380 amplifier – a modern take on the vintage","link":"https://audiofi.net/2020/04/luxman-lx-380-amplifier-a-modern-take-on-the-vintage","source":"audioFi.net","datePublished":"2020"},{"title":"Luxman LX-380 Integrated","link":"https://positive-feedback.com/reviews/hardware-reviews/luxman-lx-380-integrated","source":"Positive Feedback","datePublished":"2018"},{"title":"Back to the Golden Age of Tube Amps - Luxman LX-380 Integrated Amplifier Review (Take 2, Ep:3)","link":"https://www.youtube.com/watch?v=mWd9kQB2t8M","source":"SoundStage! Network","datePublished":"2021"},{"title":"$7995 Luxman LX-380 Tube Integrated - A Deep Dive","link":"https://www.youtube.com/watch?v=aA8CmjJo_qs","source":"SkyFi Audio","datePublished":"2023"}]
An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022

Manufacturer details

  • Rated output: 20W + 20W (6Ω), 18W + 18W (8Ω), 14W + 14W (4Ω)
  • Input sensitivity/input impedance: PHONO (MM): 3.0mV/47kΩ, PHONO (MC): 0.38mV/100Ω, LINE: 180mV/47kΩ, MAIN-IN: 690mV/100kΩ
  • Output voltage: RECOUT: 180mV, PRE OUT: 1V
  • Frequency response: PHONO: 20Hz to 20kHz (±0.5dB), LINE: 20Hz to 80kHz (+0, -3.0dB)
  • Total harmonic distortion: 1% or less (6Ω, 1kHz)
  • S/N ratio (IHF-A): PHONO (MM): 84dB or more, PHONO (MC): 67dB or more, LINE: 95dB or more
  • Vacuum tubes: 6L6GC×4, ECC82×3
  • Output configuration: Push-pull
  • Power consumption: 127W
  • External dimensions: 440(W) x 197(H) x 403(D) mm
  • Net weight: 17.6kg (main unit)
The LX-380 represents a new era in golden '38' series vacuum tube integrated amplifiers from LUXMAN. Providing an exceptionally deep resonance of sound sources of various ages and genres, the LX-380 combines LECUA* - a computerized attenuator which carefully reproduces the dynamism of each performance - with a power amplifier circuit that expresses the rich musicality of the 6L6GC output tube. Housed in a wooden case that is reminiscent of the 28 series, the LX-380 appeals to a new generation with a winning combination of cutting edge technology and traditional know-how.
The LX-380 represents a new era in golden ‘38’ series vacuum tube integrated amplifiers from LUXMAN. Providing an exceptionally deep resonance of sound sources of various ages and genres, the LX-380 combines LECUA* - a computerized attenuator which carefully reproduces the dynamism of each performance - with a power amplifier circuit that expresses the rich musicality of the 6L6GC output tube. Housed in a wooden case that is reminiscent of the 28 series, the LX-380 appeals to a new generation with a winning combination of cutting edge technology and traditional know-how. *LECUA is an abbreviation of Luxman Electric Controlled Ultimate Attenuator.
Manufacturer Site

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:

  • Luxman's products consistently achieve a "musical and natural" sound, prioritizing listening enjoyment over strict adherence to sterile neutrality.
  • They feature comprehensive tone and EQ controls that are still well-regarded and included in their current flagship components.

M-200

  • Positioning: The entry-level model in Luxman's lineup, offering a compact stereo power amplifier.
  • Description: Offers a compact design with a powerful output of 25 watts per channel, making it ideal for small spaces or desktop setups. Unlike higher-end models like the M-700u, it features a BTL monaural output mode for increased power, but lacks the advanced ODNF circuitry found in more expensive models, making it a budget-friendly option for those seeking quality sound without extensive features.

M-700u

  • Positioning: A mid-range power amplifier that bridges the gap between entry-level and high-end models in Luxman's lineup.
  • Description: Delivers a robust 120 watts per channel and incorporates the ODNF 4.0 circuit for improved distortion characteristics, offering a richer sound compared to the M-200. It provides a balance of power and sound quality, with more advanced features than the M-200.

M-900u

  • Positioning: A high-end stereo power amplifier, positioned just below the flagship models in Luxman's lineup.
  • Description: Features Luxman's advanced ODNF 4.0 circuit, providing ultra-low distortion and high power output of 150 watts per channel. It offers superior sound quality and build compared to the M-700u, with features like a large needle meter and a highly rigid chassis.

M-10X

  • Positioning: Luxman's flagship stereo power amplifier, representing the pinnacle of their product lineup.
  • Description: Introduces the new LIFES amplification feedback engine, delivering exceptional sound quality and power output of 150 watts per channel. It surpasses the M-900u with its advanced technology and exquisite design.
See All Products
Avg. Product Price
$5,001-$10,000
Used For Sale
153
 Available (Scroll Down)
Brand Popularity
29
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
45
Founding Year
1925

Our take on the brand

Luxman is distinguished by its proprietary LECUA volume control technology and unique negative feedback system, both designed to maintain exceptional sound quality at low volumes while reducing distortion. The brand's integrated amplifiers feature precision resistors, advanced phono preamps, and rare tone controls that allow users to fine-tune their listening experience, all housed in durable, classic-styled components.

Look inside the brand

Brand Page

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

From our interview with
.
Brand Page

What if you spend more?

Product image
Western Electric
91E
14999
14999
/
5
Reviews

Double the Performance Trouble-free, noise-free, and double the power of traditional 300B amps. Made possible by patented circuit design. A New Classic We’re proud to continue a legacy of quality, American manufacturing with innovative new features. Ships with Tubes The 91E ships with new production 300Bs, the most popular electron tubes in the world. Made in the USA.

Western Electric, one of the original developers of the 300B vacuum tube since 1938, stands out for their 91E Integrated Amplifier that delivers 20 watts per channel through their patented Steered Constant Current Source technology—significantly more power than typical single-ended triode amplifiers using 300B tubes. The brand's revival and continued production of the 300B tube have earned praise in the audiophile community, with their approach focusing on preserving classic tube sound while adding modern technological improvements.
Check Amazon
Expand Details

Product Strengths

  • New patented design SCS (source current steering) allows the amplifier to have a fabulous bottom end without affecting the glorious midrange
  • Proprietary noise reduction system eliminates noise that can be inherent in a single-ended design
  • Circuit protects the 300Bs and keeps them in their safe operating range, so there is no chance of damaging the tube or having a shortened life
  • More power from this amp than a traditional 300B, it's the difference in presentation
  • It has Bluetooth, phono stage (moving coil and moving magnet), and wireless remote control

Product Considerations

  • Instructions could be a little clearer about installing the 300Bs
  • More warm-up is needed for each listening session than originally allowed
  • The 91E was designed for operation with Western Electric manufactured 300B electron tubes
  • The brands and specifications of the capacitors, resistors, transformers, internal wires, RCA jacks, switches, and binding posts are not disclosed

Comparisons (according to reviewers)

  • Vs WE 91A: 91E retains what's best about the early WE 91A—its delicacy, bloom, openness, and tonal magic—and adds modern improvements

Takeaway: The Western Electric 91E is a uniquely designed amplifier providing great sound with modern features like Bluetooth and remote control, pushing what a 300B tube amplifier can achieve. It's a great option for audiophiles wanting to step up from other tube amplifier sounds.

Video review

Our take on the brand

Western Electric, one of the original developers of the 300B vacuum tube since 1938, stands out for their 91E Integrated Amplifier that delivers 20 watts per channel through their patented Steered Constant Current Source technology—significantly more power than typical single-ended triode amplifiers using 300B tubes. The brand's revival and continued production of the 300B tube have earned praise in the audiophile community, with their approach focusing on preserving classic tube sound while adding modern technological improvements.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
ampsandsound
Nautilus
11000
11000
/
7
Reviews

With the inclusion the new tube cage, the transformer cover was raised 2" to allow the cage to fully protect any KT-120/KT-150 tube. The resulting metal work and power supply changes have yielded our quietest Nautilus yet. Many still love the sleek lower profile look of the Classic Nautilus and as such we allow you to order your Nautiluswith the original metal work style or the Rev 2. The Classic Nautilus will additionally save you $1000 on the purchase.

The Story of the Nautilus is born of the same process that brought the Zions. We set out to build my private amps apart from ampsandsound. These were to be mine without branding and never to leave for demos. All too often, my own listening space was sacrificed for the need for demo stock. I chose the HK Cit II as my inspiration point. From that seed came my own Cit II Monos build on turrets just like the best amps of the golden age.

The Nautilus brings the dual-mono layout onto a single chassis. We started with our most versatile circuit, the Mogwai, and went about creating two separate amps that share a single chassis. 2 Power Transformers, Separate Power Supplies, Chokes, and input transformers. The amps are built with separate turret boards, with the shared component being the input tube, volume control, and outputs.

The Nautilus is a classic and decidedly prosaic design, as it employs turrets and point-to-point wiring & there is no silicone, ICs, or regulators. We consider this a standard-bearer of purest audio with an American sensibility. The Nautilus is built in a way few modern amplifiers are. This is not due to intrinsic inferiority, but rather it is impossible to rush and is incredibly expensive to produce.

The Nautilus has been described as a tube integrated amp for personal audio users. We mean by this, the Nautilus allows for five separate impedances to be selected for system matching and has a pair of 8ohm 5 way binding posts. The speaker vs. headphone output is selected with a small toggle switch on the back of the amp.

ampandsound specializes in high-end, handcrafted tube amplifiers made in the USA. Their low-wattage amps pair perfectly with high-efficiency speakers and headphones. The company is known for classic, minimalist designs and a focus on delivering natural sound.
Check Amazon
Expand Details

Product Strengths

  • Five individualized outputs with different impedances
  • Custom wound ultra-high quality output transformers provide excellent frequency extension and a flat response
  • Engaging audio components offer superior sound quality using proven theories, solid engineering, and quality manufacturing, all taking place in the USA
  • Brings out the very best qualities in all of the headphones tested, providing the best presentation ever heard from the Aeolus
  • Build quality is a step-up from other amplifiers

Product Considerations

  • The most expensive quarter inch plugs you can get, have locks on them, which can be annoying
  • Unplug headphones before switching to speaker outputs
  • Weighs around 68 pounds and around 93 pounds shipped in its large pelican style case—it is heavy
  • Can clip when used with speakers if pushed too hard

Comparisons (according to reviewers)

  • Nautilus sounds better than the ZMF Pendant Headphone Tube Amplifier and the Mogwai OG Tube Amplifier in every regard
  • Nautilus is even more comprehensive and expressive through the powerful, well-controlled, tonal density that is detailed and rich in nuance—it has more extension and top-notch resolution

Takeaway: The Nautilus seems to be a versatile amplifier that brings out the best in headphones and speakers. It's built with quality parts and offers a lush and detailed sound experience for audiophiles who want to enjoy music to the fullest.

Video review

Our take on the brand

ampandsound specializes in high-end, handcrafted tube amplifiers made in the USA. Their low-wattage amps pair perfectly with high-efficiency speakers and headphones. The company is known for classic, minimalist designs and a focus on delivering natural sound.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Jadis
I300
16900
16900
/
3
Reviews

In the world of audiophiles, there is purist group militating for simplicity in tube amplification systems focusing on the use of the tube designed in the early days of tube technology: the directly heated triodes of which the most famous is the 300B. I300 is built around a simple 300B push-pull without feedback which offers unequalled musiciality of this tube.

After the preamplification using an ECC82, the signal feeds a phase inverter (called Schmitt) followed by 6SN7 triodes sufficient to drive the 300B.

The power supply is another strong point. In addition to the fact that each stage has its own power supply, particular care has been taken with the 300Bs themselves.

As direct heated triodes, the heater is the cathode. This requires a very "clean" power supply with no less than seven separate power circuits.

As for all our devices, transformers are designed and manufactured in our workshop. The one dedicated to the power supply, uses a magnetic circuit EI M6X of a design which gives a very stable operation, without noise and with a reduced overheating.

The output ones use a double CV38 magnetic circuit built according to our standards. The I300 is the only integrated with such an output transformer.

A design mode that allows the device to appear much more powerful than its 10W may suggest!

As far as design is concerned, the I300 remains faithful to our range and has a compact design. The 2mm thick 304L chassis easily supports the weight of the other elements. For a better comfort of use it is equipped with a remote control.

Listening to the I300, it's all about accuracy, subtlety and musicality of the 300B which magnify your tracks. No doubt it will delight demanding audiophiles triode lover!

Jadis Electronics is renowned for their meticulous handcrafting of tube amplifiers, with a unique process of hand-winding output transformers that's integral to their signature sound. Their tube amplifiers deliver unusually high power outputs without distortion even at maximum levels, setting them apart in the tube amplifier market.
Check Amazon
Expand Details

Product Strengths

  • Wonderful mid-band presentation that comes from the 300B tubes
  • Bass is extended and controlled
  • Provides detail and insight into recordings without being piercing
  • Soundstaging is wide, deep, and natural sounding
  • Every stage in the amplifier has its own power supply, and particular care has been taken with the 300Bs themselves

Product Considerations

  • The included remote is functional, but not in keeping with the quality of the amplifier itself
  • It is very heavy, weighing 40kg
  • The high polished chrome and gold accents may divide opinion
  • Those looking for an amplifier that is absolutely neutral in its presentation may want to listen to something else

Comparisons (according to reviewers)

  • Vs Merrill Thor amps, the Jadis I300, to the reviewer's ears, is a far superior amp for listening and putting a big grin on your face

Takeaway: The Jadis i300 is built superbly and delivers a balanced sound with detail and emotional connection, making it a joy to listen to. It is a refined performer across the audio spectrum and with all kinds of music.

Video review

Our take on the brand

Jadis Electronics is renowned for their meticulous handcrafting of tube amplifiers, with a unique process of hand-winding output transformers that's integral to their signature sound. Their tube amplifiers deliver unusually high power outputs without distortion even at maximum levels, setting them apart in the tube amplifier market.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Thöress
SE-300B
10581
10581
/
3
Reviews

The SE300B Mono Amplifier is... an all-tube power amplifier employing the famous classic 300B filamentary triode in single-ended operation mode for an output of up to 10 watts into a 4, 8 or 16 ohm loudspeaker load. The 300B power tube is excited by an extraordinary single-stage driver employing two CV2382/EL822 power pentodes operated in triode mode with high idle current and works into a C-core output transformer built in-house to the highest possible standards so as to ensure ultimate performance. The amplifier is built with meticulous hand construction using our proven point-to-point wiring techniques whereas much care has been taken in arranging each aspect of the internal construction to ensure low noise performance, ease of service and the highest reliability for many years to come.

Thöress is a hifi brand known for its unique EHT Topology, which combines single-ended triode tubes with MOSFET output stages in Class-A mode, setting it apart from typical tube amplifiers through its transparency rather than warmth. The brand's products feature a distinctive vintage laboratory aesthetic with German labeling, and include the Phono Enhancer, which lets users adjust equalization curves on-the-fly without conventional tone controls.
Check Amazon
Expand Details

Product Strengths

  • Pure sound, free of coloration while retaining musical detail, allows a graceful and effortless listening experience
  • Natural and tangible sound due to accurate reproduction of details, creates a believable presentation
  • Solid and controlled bass performance, unusual for a 300B single-ended triode amplifier
  • Excellent sense of touch and tactile sound, making instruments like plucked strings and bowed violins sound very convincing
  • Wide and deep soundstage with good 'air', providing a transparent and 'hear-through' sound, especially with complex music

Product Considerations

  • Careful matching with partnering equipment is required, especially speakers with high efficiency
  • Relatively low overall gain requires a source with a high output voltage
  • Output transformer links need to be correctly set for speaker impedance, requiring dealer assistance
  • Some reviewers found the top end sounding a bit rolled off before use of appropriate high efficiency speakers and source gain settings
  • Changing the EL803S driver valves requires carefully matched pairs supplied by Thöress

Comparisons (according to reviewers)

  • Vs Shindo Haut-Brion/Corton-Charlemagne, Thöress has more treble extension and transparency, Shindo has better upper-bass/lower-midrange substance and body—and more drive

Takeaway: The Thöress SE-300B offers a supremely musical and detailed listening experience with a focus on accuracy and sonic purity. When paired with the right speakers, this amplifier could be an excellent choice to bring out the best in music.

Video review

Our take on the brand

Thöress is a hifi brand known for its unique EHT Topology, which combines single-ended triode tubes with MOSFET output stages in Class-A mode, setting it apart from typical tube amplifiers through its transparency rather than warmth. The brand's products feature a distinctive vintage laboratory aesthetic with German labeling, and include the Phono Enhancer, which lets users adjust equalization curves on-the-fly without conventional tone controls.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

What competes at this price?

Enleum
AMP-23R
6250
/
Released
2021
Enleum was launched as a new brand with the AMP-23R. While our legacy AMP-13R had already been praised all around the world for its performance and unique design, we pushed the boundaries to create the AMP-23R with a new circuit that truly enhances the existing performance. We have drastically improved the PCB circuit board design, chosen new internal components and upgraded our JET2 Bias design. And the reviews and awards are unanimous. The AMP-23R's physical size and footprint may be compact, but with the all new chassis and thermal heatsink design, we've launched a product that's fit for the next generation reference compact amplifier.
Check Amazon
Enleum is a hifi brand known for its compact yet powerful amplifiers, particularly the AMP-23R, which delivers performance comparable to much larger systems through its unique gain control system and zero negative feedback circuits.
Expand Details

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

Our take on the brand

Enleum is a hifi brand known for its compact yet powerful amplifiers, particularly the AMP-23R, which delivers performance comparable to much larger systems through its unique gain control system and zero negative feedback circuits.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
ampsandsound
Bigger Ben
5728
/
Released
2021
The Bigger Ben started life as 2nd channel adaptation of the Mogwai. It employed huge transformers and was a Class A beast. With the development of the Mogwai SE, the Bigger Ben became redundant as the Mogwai SE is such an overachiever.
Check Amazon
ampandsound specializes in high-end, handcrafted tube amplifiers made in the USA. Their low-wattage amps pair perfectly with high-efficiency speakers and headphones. The company is known for classic, minimalist designs and a focus on delivering natural sound.
Expand Details

Our Summary

Product Strengths

  • Very powerful amp with crazy headroom, capable of driving most headphones, including those that need a lot of power, and can grow with you as different headphones
  • Delivers clarity, separation, detail, and impact, making every pair of headphones sound better
  • Multiple impedance outputs allow dialing in the best sound for a given pair of headphones
  • Super black background—very low noise floor
  • A ton of different tubes can be rolled, including EL34s, KT66s, KT67s, KT88s, 6550s, and KT90s, making it very versatile and allowing customization of the sound to exact taste

Product Considerations

  • Only one input via a pair of RCA connectors
  • Requires a pre-amplifier or DAC with volume control if obtained without the volume pot
  • May lack convenience features because of ampsandsound's minimalist philosophy
  • Can be very heavy

Comparisons (according to reviewers)

  • Vs Linear Tube Audio's Z10e: Z10e seemed more focused and brightly lit through the midrange

Takeaway: The Bigger Ben is a hugely versatile and powerful amplifier that could be an end-game amp, especially if you want to experiment with tube rolling. Its sound is detailed, clear, and engaging, making it a great choice for anyone who loves listening to music.

Video review

Our take on the brand

ampandsound specializes in high-end, handcrafted tube amplifiers made in the USA. Their low-wattage amps pair perfectly with high-efficiency speakers and headphones. The company is known for classic, minimalist designs and a focus on delivering natural sound.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Unison Research
Simply 845
9999
/
Released
2023
The New Simply 845 ranks at the top of Unison Research's line of integrated tube amplifiers, second only to the historic ABSOLUTE 845. The SIMPLY 845, like the ABSOLUTE 845, also employs the famous 845 direct-heated triodes, tubes well known for remarkable durability and extraordinary sonic qualities.
Check Amazon
Unison Research specializes in hybrid amplifiers that combine tube and solid-state technology, with their flagship Unico DM featuring a pure class A double tube stage paired with POWER MOSFET components. Their Black Edition series, including the S6 and Simply Italy models, integrates modern digital connectivity like USB and SPDIF while maintaining their signature tube-based design philosophy.
Expand Details

Our Summary

Product Strengths

  • Wide and deep soundstage, with a depth extending as far as 70 feet in one test
  • Music reproduction is natural and realistic, creating a sense of instruments and voices being present in the room
  • High frequencies and cymbals shimmer and crash realistically
  • Impeccably constructed and manufactured with original circuit solutions
  • Capable of drama, delicacy, and danger which transcends reproduction — turning the act of listening into a full-fledged experience

Product Considerations

  • Selector knob on top of the unit is difficult to access when the tube cage is installed
  • Speakers need to be a good match for the amplifier's 23 watts of power
  • Bass was shy and ill-defined when used with the Dynaudio Contour 60i speakers

Comparisons (according to reviewers)

  • Compared to Conrad Johnson Premier 10 & 11A, the Simply 845 has a wider and deeper soundstage and better reproduction of high frequencies and cymbals
  • Compared to PrimaLuna (top-of-the-line), the Simply 845 sounds better sonically
  • Compared to Line Magnetic Audio LM-845iA Integrated Amp, the Simply 845 does delicate better

Takeaway: The Simply 845 is a revealing integrated amplifier that makes music sound magical and is an excellent choice, especially for horn speaker lovers. This amplifier transforms speakers into something wonderful and will enhance the music experience.

Video review

Our take on the brand

Unison Research specializes in hybrid amplifiers that combine tube and solid-state technology, with their flagship Unico DM featuring a pure class A double tube stage paired with POWER MOSFET components. Their Black Edition series, including the S6 and Simply Italy models, integrates modern digital connectivity like USB and SPDIF while maintaining their signature tube-based design philosophy.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Unison Research
Sinfonia
6499
/
Released
Part of our classic line of tube amplifiers that include the Preludio and the Performance, the Sinfonia integrated amplifier retains the technical approach, sound and beautiful aesthetics found in the rest of the line. While the Sinfonia offers both stunning looks and equally stunning sound, it is also extremely reliable due to its unique design solutions, quality materials and the highest of build quality standards.
Check Amazon
Unison Research specializes in hybrid amplifiers that combine tube and solid-state technology, with their flagship Unico DM featuring a pure class A double tube stage paired with POWER MOSFET components. Their Black Edition series, including the S6 and Simply Italy models, integrates modern digital connectivity like USB and SPDIF while maintaining their signature tube-based design philosophy.
Expand Details

Our Summary

Product Strengths

  • Refinement and smoothness in sound
  • Exceptional build and finish, including exquisite woodwork
  • Seductive midrange and overall musicality
  • The Sinfonia has a romantic, addictive sound that's better suited to classical music

Product Considerations

  • Not the last word in slam
  • Needs careful system partnering to sound its best
  • Dynamics were very good, although not exactly of the same caliber as with the ModWright preamp and amp
  • When pushed to the extremes, during the most dynamic passages, the Sinfonia began to reach its limit—compressing gently and giving up some of the low frequency control

Comparisons (according to reviewers)

  • Sinfonia offers a smoother, warmer, and more seductive sound, while the S6 amplifier sounds a little 'faster' and more linear

Takeaway: The Sinfonia is a fine amplifier with a beautiful build that delivers a refined and smooth sound. It's a good choice for enjoying music and will make your eyes smile with its hand-made Italian design.

Video review

Our take on the brand

Unison Research specializes in hybrid amplifiers that combine tube and solid-state technology, with their flagship Unico DM featuring a pure class A double tube stage paired with POWER MOSFET components. Their Black Edition series, including the S6 and Simply Italy models, integrates modern digital connectivity like USB and SPDIF while maintaining their signature tube-based design philosophy.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Triode
Evolution
8385
/
Released
2021
Check Amazon
Triode amplifiers are known for their unique ability to reproduce music with a harmonic aura and immersive bloom that fills the room, setting them apart through their distinctive "spark of life" that creates a finely textured, highly resolved sound image. The brand offers customization options for output transformers in their amplifiers, which are built with premium components like Mundorf silver oil film coupling capacitors and Hashimoto Electric output transformers from the coveted '60s-era Sansui AU-111 integrated.
Expand Details

Our Summary

Product Strengths

  • Exceptional build quality and aesthetics
  • Delivers a robust 40 watts per channel into 8 ohms
  • Demonstrates remarkable frequency handling, extending from 17Hz to 63kHz (-2dB)
  • Precise bias adjustment with built-in meter
  • Superb control, power, and effortless flow

Product Considerations

  • Relatively heavy at 30kg
  • May require occasional tube maintenance
  • Power output might not suit all speaker combinations
  • A softer 300B glow was not present

Comparisons (according to reviewers)

  • The Triode as amp offered a similar kind of finely grained nearly neutral sound as the Audionet
  • No amp has bettered the Riviera Levante integrated amp in dimensional quality
  • Parts cost plus the Evolution comes with two Western Electric 300Bs that run $1499 per matched pair on the open market, while the Triode TRZ-300W sports four Triode-branded 300Bs

Takeaway:

The Triode Evolution is a high-end tube amp that delivers music with power and clarity. Those who value musical authenticity and appreciate the warmth of tube amplification may find it a great fit.

Video review

Our take on the brand

Triode amplifiers are known for their unique ability to reproduce music with a harmonic aura and immersive bloom that fills the room, setting them apart through their distinctive "spark of life" that creates a finely textured, highly resolved sound image. The brand offers customization options for output transformers in their amplifiers, which are built with premium components like Mundorf silver oil film coupling capacitors and Hashimoto Electric output transformers from the coveted '60s-era Sansui AU-111 integrated.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

Questions? Ask the brand's dealers.

All Dealers

How to buy

Amplifiers

Search all hifi products

Explore our database of 10,000+ new and 25,000+ used hifi products.