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
- Potent transparency gives a direct view of what the microphones registered, unmitigated
- Exceptionally musical, providing a colorless, open, and resolute sound
- Excellent build quality
- More authoritative and powerful than its nominal 25-watt power rating would suggest
- Provides a detailed and airy musical reproduction similar to SET tube amps, but without maintenance and coloration
Product Considerations
- Took about four weeks of playing music to properly break in, and the sound changed with different speaker cables
- Isn't balanced in terms of design or connection
- Runs in Class A, which consumes a significant amount of power and is not very energy efficient
- The reviewer notes a tad of thinness to the lower midrange that might get grating over time
Comparisons (according to reviewers)
- vs Miyajima Laboratory Model 2010: Less wabi-sabi than the Miyajima, but it made the Quad's legendary midrange more solid, dynamic, and well defined
- vs ASR Emitter II MOSFET amp: The XA25 drove the old Quads better than the ASR, and better than any other amp heard
- vs First Watt F7: The XA25 was the more illuminated, open, feistier type that also dug substantially deeper and felt more anchored than the FirstWatt F7
- vs XA-30.8: The reviewer liked the sound of the smaller amp even better, and their back much preferred it, too
Takeaway: The Pass Labs XA25 is an audiophile amplifier that delivers a potent transparency and is exceptionally musical. It is a great option for those wanting high-end performance in a smaller, more affordable package.
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
XA25
reviews
[{"title":"Pass Laboratories XA25 power amplifier","link":"https://www.stereophile.com/content/pass-laboratories-xa25-power-amplifier","source":"Stereophile","datePublished":"2018"},{"title":"Pass Labs XA-25 Audiophile Power Amplifier Reviewed","link":"https://futureaudiophile.com/pass-labs-xa-25-audiophile-power-amplifier-reviewed","source":"Future Audiophile","datePublished":"2023"},{"title":"Pass Labs XA-25","link":"https://hifiknights.com/reviews/amplifiers/pass-labs-xa-25","source":"HiFi Knights","datePublished":"2023"},{"title":"Pass Labs XA25 review","link":"https://darko.audio/2023/02/pass-labs-xa25-review","source":"Darko Audio","datePublished":"2023"},{"title":"XA25","link":"https://6moons.com/audioreview_articles/pass-labs-xa25","source":"6 Moons","datePublished":""},{"title":"The Pass Labs XA25 Class A Stereo Amplifier - The Little Engine That Could","link":"https://positive-feedback.com/reviews/hardware-reviews/pass-labs-xa25-class-a-stereo-amplifier","source":"Positive Feedback","datePublished":"2019"},{"title":"Pass Labs XA25 Pure Class A Power Amp and the HPA-1 as the Preamp","link":"https://theaudiobeatnik.com/pass-labs-xa25-pure-class-power-amp-hpa-1-preamp","source":"The Audio Beatnik","datePublished":"2017"},{"title":"Pass Labs XA25 Stereo Amplifier Reviewed","link":"https://hometheaterreview.com/pass-labs-xa-25-stereo-amplifier-reviewed","source":"Home Theater Review","datePublished":"2018"},{"title":"Pass Labs XA25 - Class A amplifier (review)","link":"https://www.youtube.com/watch?v=4yZRdVXT8U0","source":"Pearl Acoustics","datePublished":"2022"},{"title":"Pass Labs XA-25","link":"http://hifiknights.com/reviews/amplifiers/pass-labs-xa-25","source":"hifiknights.com","datePublished":""},{"title":"The Pass Labs XA25 stereo amplifier - Jeff's Place","link":"https://jeffsplace.positive-feedback.com/the-pass-labs-xa25-stereo-amplifier-listening-impressions-and-chatting-with-nelson-pass","source":"jeffsplace.positive-feedback.com","datePublished":""},{"title":"XA25 3rd opinion","link":"https://6moons.com/audioreview_articles/pass-labs-xa-25-3rd-opinion","source":"6moons.com","datePublished":""},{"title":"New FIRST WATT SIT 4, compared with SIT 3, F7, and PASS XA25","link":"https://www.youtube.com/watch?v=uCVgw8TTKKo","source":"Pearl Acoustics","datePublished":"2025"}]
An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022
Video Review
Manufacturer details
Features
Specifications
- Class: A Type
- Gain (dB): 20
- Inputs: RCA
- Power Output/ch (8 ohm): 25
- Output devices (/ch): 4
- Power Consumption (Watts): 240
- Standby Power Consumption (Watts): <1
- Number of Chassis: 1
- Unit Dimension (W x D x H): 17 x 17.25 x 6 inches
- Unit Weight: 48.5 LBS
Description
The new XA25 offers great sound at slightly lower power, without frills, at a lower price. It embodies new components and innovative circuits coupled with the best elements of the previous generation. Degeneration, "the other form of feedback", has been eliminated. The output stage consists of a single pair of 800 watt new generation output transistors operating push-pull Class A.
The new XA25 offers great sound at slightly lower power, without frills, at a lower price. It embodies new components and innovative circuits coupled with the best elements of the previous generation. Degeneration, “the other form of feedback”, has been eliminated. The output stage consists of a single pair of 800 watt new generation output transistors operating push-pull Class A. The result is faster, lower distortion, lower noise, higher damping and larger Class A operating envelope into low impedance loudspeakers, all in a simple 3 stage circuit with total of three pair of push-pull gain transistors.
Release Timeline
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:
- They design their products with a minimalist approach, focusing on essential components and avoiding unnecessary features in the signal path.
- Pass Labs emphasizes high-quality parts and meticulous assembly over brute force design, resulting in components built to last for decades.
- Their amplifiers often exhibit a sound signature with both detail and a touch of warmth, providing a musical and engaging listening experience.
- The company's components are often fully class-A, or run deeply in class A territory, known for its excellent linearity and lack of distortion.
Select products
Select product comparisons
INT-25
- Positioning: The entry-level integrated amplifier in the Pass Labs lineup, offering a more affordable option with high-quality sound.
- Description: Features simplicity and high-quality Class A amplification, making it ideal for small rooms or setups where space is limited. It features a minimalist design with fewer components in the signal path, which enhances speed and stability compared to more complex models like the INT-250. This makes it a great choice for those with a moderate budget who prioritize sound quality over power output, as it offers 25 watts per channel and is best suited for efficient speakers.
X350.8
- Positioning: The high-powered stereo amplifier positioned as the most powerful Class A/B amplifier in the Pass Labs lineup.
- Description: Delivers 350 watts per channel, providing ample power for larger rooms and more demanding speakers. It offers a superb and accurate representation of recordings, with a focus on holistic design rather than just specifications, setting it apart from smaller models like the X250.8.
XA200.8
- Positioning: A premium monoblock amplifier in the Pass Labs lineup, designed for high-end audio systems.
- Description: Delivers 200 watts of pure Class A power, providing exceptional sound quality and headroom for complex musical passages. It stands out with its high current capability and lack of microprocessor-controlled bias schemes, unlike the more affordable XA100.8.
XS300
- Positioning: The flagship monoblock amplifier in the Pass Labs lineup, representing the pinnacle of their amplifier technology.
- Description: Offers 300 watts of Class A power with separate power supply and amplifier chassis for lower noise, making it the top choice for those seeking the best in music reproduction. It features a higher-power constant-current source and single-ended bias current, which lowers distortion and enhances harmonic control compared to other models like the XA200.8.
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Avg. Product Price
$5,001-$10,000
Used For Sale
15
Available (Scroll Down)
Brand Popularity
66
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
24
Founding Year
1991
Our take on the brand
Pass Labs Class A amplifiers are celebrated for their distinctive sonic character, delivering a rich, full-bodied sound with a notably lush midrange. They imbue a unique sense of "plumpness" and warmth to the music, an intentional coloration that many enthusiasts find highly engaging. The pure Class A design ensures smooth, beautiful sound but comes with the trade-off of generating significant heat, which can warm up a room.
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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
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Used
Pass Labs
All of the Brand's Used Products
What if you spend more?
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ampsandsound
Bryce
16000
16000
/
3
Reviews
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.
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Product Strengths
- Impressive bass response, dynamics, and power for a 12-Watt single-ended tube amplifier
- Dense, tactile, and sweet harmonic color with a clean and clear sound
- Robust build quality with point-to-point hand wiring and exceptional parts
- Easy biasing with a switch for KT88 to KT120/150 mode
- Proprietary transformers that contribute to a flatter response and deeper low bass
Product Considerations
- Careful speaker matching is required, ideally with speakers that have at least 94dB/W efficiency and a stable speaker load
- Must be turned off for at least 10 minutes, preferably 30, before turning it back on, or the rectifier tube could blow
- The correct tube type must be selected on the back of the amp, otherwise performance could be lackluster or tubes could be damaged
- The XLR input involves a slight reduction in detail due to using an input transformer to convert the incoming balanced signal to single-ended
Comparisons (according to reviewers)
- The Bryce eliminates the shortcomings of ampsandsound Nautilus when used as a speaker amplifier, adding dynamics, bass, and an extended top end
- The Bryce monoblocks are more romantic in execution, with single-ended construction—compared to the push-pull output of ampsandsound Zion
Takeaway: The Bryce Monos are high-quality amplifiers with a surprisingly powerful and detailed sound, providing an engaging listening experience. They are great for audiophiles looking for a tube amp that delivers both emotional connection and technical performance.
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.
Product Page
Product Page
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.
Expand Details
Our summary
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.
Product Page
Product Page
Thöress
EHT Power
14109
14109
/
3
Reviews
THÖRESS introduces the EHT Mono Amplifier... The most powerful amplifier model of our product line provides 30, 40 or 50 watts of output power into a 8, 6 or 4 ohm load respectively, combined with very low output resistance (high damping factor). Such providing excellent drive capability for loudspeakers with medium to low efficiency or critical impedance behavior. While offering an ultimate sonic presentation without involving exotic and costly power tubes. The amplifier is based on a unique minimalist single-ended zero-feedback hybrid circuit which we call EHT Topology. Basic analysis easily shows that the EHT topology represents the PUREST form of all possible single-ended triode power amplifier configurations.
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.
Expand Details
Our summary
Product Strengths
- The EHT combines tubes and transistors to mate the most desirable characteristics of both
- Amplifiers provide fullness and density, even at low listening volumes
- The EHT creates a natural sound with incredible saturation
- They are fully short-circuit proof at the outputs without any sound-degrading protection
- A switch-on delay is omitted because switching on/off develops no disturbing noise or dangerous signal in this circuit
Product Considerations
- Sound is focused on timbre rather than detail
- Their sound is soft rather than focused, rather warm than open, and rather close to us than presented in a perspective
- The devices are quite large, as they measure 434 x 184 x 434 mm (W x H x D) and weigh 14 kg each
Takeaway: The Thöress EHT monoblocks offer a holistic view of the musical material and its reinterpretation that can be very enjoyable for long listening sessions. They create events in their own acoustic environment, which is completely transferred to the listening room, creating a beautiful, organic, comprehensive, and internally properly arranged sound for those who value tonality above all else.
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.
Product Page
Product Page
Fezz
Audio Lybra 300B
10306
10306
/
2
Reviews
One of the finest parallel single ended 300B tube amplifier made by Fezz Audio. It provides openness and spatial sound. Powerful, sublime, very involving and uniqe to itself. Fezz Audio Lybra gives you the best sounding experience you can get from the 300B tubes.
Fezz Audio distinguishes itself by being the first to implement toroidal output transformers in single-ended tube amplifiers, a design choice that enhances efficiency and reduces noise. Their Evolution series, developed in collaboration with the KABO & PYDO design studio, has been recognized with prestigious awards such as the Red Dot Design Award.
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Our summary
Product Strengths
- Delivers an incredibly rich, flavorful midrange and a sweet, relaxed treble
- Has a more sophisticated presentation than the utilitarian bent-metal chassis sported by most integrated tube amps on the market, and the smooth lines of the chassis help the amp stand out from the crowd
- Has a clever tube cage design with a clear Plexiglass front panel that delivers an unobstructed view of the tubes and is easy to install and remove
- Is seriously quiet, and there was effectively zero noise through any of the speakers
Product Considerations
- Can sound wildly different, depending on the impedance of the speakers
- The four slightly squishy feet underneath the amp may cause stains
- The power switch is on the rear of the chassis, which may be problematic if installing the amp in a cabinet with limited access
- Needs a good 20 minutes to warm up, and on initial startup, the amp sounded a bit thin, bright, and constipated, but after one album, it opened right up
- Limited power output (15Wpc) may not be sufficient for all speakers or listening preferences, especially when wanting to play music very loud
Takeaway: The Fezz Audio Lybra 300B is a well-designed tube amplifier that delivers a rich and flavorful sound. It can bring out the best in your speakers, offering clarity and great sound.
Video review
Our take on the brand
Fezz Audio distinguishes itself by being the first to implement toroidal output transformers in single-ended tube amplifiers, a design choice that enhances efficiency and reduces noise. Their Evolution series, developed in collaboration with the KABO & PYDO design studio, has been recognized with prestigious awards such as the Red Dot Design Award.
Product Page
Product Page
What competes at this price?
Audio Note
Conquest
7346
/
Released
The Audio Note (UK) CONQUEST Mono Power Amplifiers are Pure Class A Parallel Single Ended valve amplifiers that use a pair of the highly regarded 300B triode valves per channel, producing a level of performance that is radically superior to the vast majority of current designs. They have been specifically engineered for sonic performance rather than technical specification, and fulfil all Audio Note (UK) Level 3 criteria:
Audio Note UK is one of Europe's largest manufacturers of valve-based audio equipment, designing and producing nearly all components in-house, including transformers and capacitors. The brand has achieved cult status among audiophiles who appreciate its minimalist, non-oversampling approach and its emphasis on musicality over technical specifications.
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Our Summary
Product Strengths
- Classic single-ended triode amplifier that caresses vocals and conveys warmth in vocal recordings
- Delivers rock-solid image placement and transparency, particularly in the midband
- Acts like a higher-wattage amplifier than its 18W rating suggests
- Can drive speakers that aren't absurdly sensitive
Product Considerations
- Build quality is not as refined as the more expensive Japanese-made Audio Note products
- Bass can be waffly/uncontrolled
- Top-end frequency performance can vary
- May not impress those familiar with higher-end Audio Note amplifiers
Takeaway: The Audio Note Conquest is a single-ended triode amplifier that can provide a lush, sweet midband and is more powerful than its specifications suggest. It offers single-ended triode performance at a more accessible price point.
Video review
Our take on the brand
Audio Note UK is one of Europe's largest manufacturers of valve-based audio equipment, designing and producing nearly all components in-house, including transformers and capacitors. The brand has achieved cult status among audiophiles who appreciate its minimalist, non-oversampling approach and its emphasis on musicality over technical specifications.
Product Page
Product Page
Fezz
Lybra 300B
6452
/
Released
An amplifier designed for the most demanding enthusiasts of 300B tube sound.
Fezz Audio distinguishes itself by being the first to implement toroidal output transformers in single-ended tube amplifiers, a design choice that enhances efficiency and reduces noise. Their Evolution series, developed in collaboration with the KABO & PYDO design studio, has been recognized with prestigious awards such as the Red Dot Design Award.
Expand Details
Our Summary
Product Strengths
- Neutral and transparent sound, more so than the reference amplifier
- Bass performance is remarkably tight, articulate, solid, and weighty, without typical 'tube character'
- Very good rhythmic capabilities
- Maintains control even with inefficient or difficult speakers
- Threads a fine middle path between a typical transistor sound and a typical tube sound—with an unmistakable midrange charm
Product Considerations
- Some might find it 'not characterful enough' because it is superbly even-handed
- With some speakers, the balance can be a little too lean and overly controlled
- Its low power rating ultimately imposes a limit on how loud one can play, which may not suit everyone
Comparisons (according to reviewers)
- Vs Ayon Spirit III: The Lybra sounds almost as powerful and robust in the bass while being perhaps even tighter and articulate, and is more highly refined with subtler and airier treble
- Vs Trafomatic tube amps and MP's Jadis amplifiers: The Lybra offers something different, it's not as voluptuous, rich, and relaxed as the Trafomatic
Takeaway: The Fezz Lybra is a neutral and controlled amplifier that offers a balanced sound without sounding like a typical tube amp, providing articulate bass and a charming midrange. It could be worth buying if you like very good sound, especially if you have efficient speakers.
Video review
Our take on the brand
Fezz Audio distinguishes itself by being the first to implement toroidal output transformers in single-ended tube amplifiers, a design choice that enhances efficiency and reduces noise. Their Evolution series, developed in collaboration with the KABO & PYDO design studio, has been recognized with prestigious awards such as the Red Dot Design Award.
Product Page
Product Page
.png){kind=logo}
ampsandsound
Little Nugget
6111
/
Released
The return of the ST15 is not of nostalgia but of evolution. The ST15 was one of ampsandsound's most popular amps but was retired to give space for higher power designs. Over the years, we have grown to fully embrace metal chassis amps that are brutalist in design and overwhelming in structural rigidity. Our customers have come to love the laboratory grade implementation of our work and its intended long lifecycle. The new Stereo 17 was built with our 11gage steel plate chassis providing a compact and extraordinarily solid amp (39lbs). Its sheer density and warn EL84 sound beckoned the name "little nugget".
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
- Metal chassis provides better ergonomics and structural integrity compared to the previous wood chassis
- Robust power supply prevents compression, even with demanding speakers
- Has full bandwidth down into the low 20s without problem
- Warm lush midrange and the right 3d spatial cues up top
- Fast, accurate, proportionate sound that is warm but not dry or analytical
Product Considerations
- The reviewer mentioned they are going to work on adding name badges to the next versions
Takeaway: The amplifier is great sounding with a robust power supply. Its proportionate and warm sound makes it ideal for nearfield listening.
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.
Product Page
Product Page
Shindo
Montille CV391
7995
/
Released
Shindo Laboratory is distinguished by its dual mono preamplifier designs, where each channel has its own chassis, and its field coil speaker systems that achieve high sensitivity ratings of 96-100dB/W/m. The brand's products feature proprietary circuit designs and undergo continuous refinement during production, with notable examples being their Giscours preamplifier and Latour/Lafite speaker systems that deliver frequency responses from as low as 20Hz up to 20,000Hz.
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Our Summary
Product Strengths
- Creates an extraordinarily vivid sound
- Has the seeming ability to turn up the contrast knob on everything passed through it
- Offers great color and body
Product Considerations
- When playing very loud passages at extravagant volume levels, it clipped less elegantly
- Bass output was just a bit excessive
Comparisons (according to reviewers)
- Surpasses the Haut-Brion in terms of color saturation
- The Haut-Brion has a somewhat better sense of scale overall, is capable of greater delicacy when needed, and sounded a shade righter, timbrally, on trumpets and singing voices
- The Haut-Brion offered the more well-balanced bass, relative to the volume of sound in the rest of the audible range—the Haut's bass was also drier and a little more detailed
Takeaway: The Shindo Montille CV 391 is a hand-wired tube amp that delivers vivid and colorful sound, making music come alive. It's a great match for less sensitive speakers and offers a unique listening experience.
Video review
Our take on the brand
Shindo Laboratory is distinguished by its dual mono preamplifier designs, where each channel has its own chassis, and its field coil speaker systems that achieve high sensitivity ratings of 96-100dB/W/m. The brand's products feature proprietary circuit designs and undergo continuous refinement during production, with notable examples being their Giscours preamplifier and Latour/Lafite speaker systems that deliver frequency responses from as low as 20Hz up to 20,000Hz.
Product Page
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ampsandsound
Rockwell
6097
/
Released
2021
The ampsandsound Rockwell brings the legendary Direct Heated Triode sound to personal audio. We chose the 6B4G as it stand tall next to other top shelf triodes while still being accessible in NOS form. Combining a single gain stage, zero feedback, and careful attention to grounding techniques, we can use a the Large 6B4G Triode with headphones without hum or noise.
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
- Delivers a holographic soundstage and exceptional mid-range clarity, creating a visceral and nuanced listening experience
- Offers great tonal accuracy and mid-range performance, especially with acoustic and vocal-heavy music
- The amplifier is powerful enough to drive speakers and the reviewer's headphones with ease
- Can be re-tubed with entirely NOS (New Old Stock) tubes for under $300, making it a bargain to maintain compared to other amplifiers
- Has multiple output impedances allowing matching to pretty much any headphone
Product Considerations
- Direct Heated Triodes are naturally more noisy than indirectly heated tubes
- Users with highly sensitive headphones (north of 100dB/mW efficient), like Utopia or Stellia, might experience some background noise
- Bass presentation focuses on detail and texture rather than thick, chest-thumping slam
- Caution should be used when lifting it, as it is much denser than it appears
Comparisons (according to reviewers)
- Vs ampsandsound Nautilus: The Rockwell is more delicate and nuanced, with more space and air, whereas the Nautilus produces greater slam and is more tonally dense
- Vs ampsandsound Kenzie Ovation: There are similarities in tone and vocal rendering, but the Rockwell is more powerful, creating dynamics that explode
- Vs ampsandsound Bigger Ben: The Rockwell provides more low-end detail, while the Bigger Ben reaches slightly lower with more slam
Takeaway: The Rockwell is a seductive and fun amplifier that is worth owning, especially for those who appreciate the classic American hifi sound. It offers a remarkable listening experience and the ability to use affordable NOS tubes.
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.
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