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.

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.

Manufacturer details

A true integrated system, Devialet Astra amplifier delivers all the core elements of playback – preamp, amp, DAC, streamer, phono stage – in a single and ultra-compact unit.
2x600 Wrms under 4Ω, 2x300 Wrms under 8ΩA true integrated system, Devialet Astra amplifier delivers all the core elements of playback – preamp, amp, DAC, streamer, phono stage – in a single and ultra-compact unit.All-in-One SophisticationDouble-down on power with Devialet Astra Dual Light Bronze. This powerhouse pairs two 600-watt amplifiers to create a potent configuration. Experience unparalleled sound with zero distortion and zero saturation in an advanced, seamlessly integrated system designed for uncompromising audiophiles.
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:

  • Devialet products stand out with their uniquely futuristic, often spherical designs, setting them apart from conventional speakers.
  • The brand incorporates proprietary technologies like ADH amplification, SAM speaker matching, and HBI bass implosion, which contribute to exceptional sound quality and robust bass response.
  • The brand integrates seamlessly with modern streaming ecosystems, offering compatibility with Apple AirPlay 2 and Spotify Connect, and has recently updated its products to incorporate Roon Ready status.

Phantom II:

  • Positioning: The entry-level model in the Devialet Phantom lineup.
  • Description: Features a compact design, making it ideal for small rooms or portable use. It features a 400-watt amplifier, which is less powerful than the Phantom I's 1100 watts, but still delivers impressive sound quality for its size. This model is more budget-friendly compared to the Phantom I.

Phantom I:

  • Positioning: Positioned as a high-end model in the Devialet lineup, offering superior sound quality and power.
  • Description: Stands out with its powerful 1100-watt amplifier, providing a more robust sound experience compared to the Phantom II's 400 watts. It is equipped with Devialet's ADH technology, which combines analog and digital amplification.

Phantom Theater:

  • Positioning: Designed for home cinema setups, offering a premium audio experience with surround sound capabilities.
  • Description: Notable for its Dolby Atmos support, providing an immersive audio experience that surpasses the stereo capabilities of the Phantom I and II. It allows for flexible configurations, accommodating multiple Phantom I and II speakers to create a tailored home theater system.
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Avg. Product Price
$30,001-$40,000
Used For Sale
41
 Available (Scroll Down)
Brand Popularity
88
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
17
Founding Year
2007

Our take on the brand

Devialet is a hifi brand that combines analog and digital amplification through their "Analog Digital Hybrid" technology, delivering extremely low distortion in sleek, minimalist speakers. Their signature Phantom speakers use high-pressure lateral drivers to produce ultra-deep bass down to 14 Hz, while their spherical design minimizes sound diffraction for consistent quality regardless of listening position.

Look inside the brand

Brand Page

Our interview with the brand

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From our interview with
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What if you spend more?

Product image
Aavik
I-880
70000
70000
/
7
Reviews
Aavik Acoustics crafts amplifiers using natural composite materials inspired by musical instruments, with their cabinets designed to enhance audio potential. Their products feature unique noise-cancelling technologies including Tesla coils and dither circuitry, while offering distinctive features like their U-300's input-specific gain adjustment system and the U-380's signature "aged-in-wood" bass sound.
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Product Strengths

  • Visually stylish, luxurious, well-built, and enjoyable to look at
  • Offers extensive functionality including preamp gain adjustment, channel balance, mute, and display brightness settings
  • Combines qualities of both tube and transistor designs, having transparency and magical realism with easy power
  • Produces a clean, succinct, holographic, and exciting sound, with great dynamic capabilities
  • Exceptionally well-balanced frequency response, fitting between the warmth and energetic explicitness of other amps

Product Considerations

  • Massive and heavy, making it not easy to move around
  • Single ended inputs only with no balanced inputs
  • The vast disparity between the damping factors—synergy can vary with speakers

Comparisons (according to reviewers)

  • Aavik I-880 was leaner, more illuminated, outlined and energized, spatially grander, less intimate and occupied via shorter key sound sources, compared to Trilogy 915R preamp and twin 995R mono amps
  • The I-880 was internally juicy, admirably outlined, enjoyably angry, instantaneous, and powerful in the lower end range, where the twin 995Rs were boomier, fuzzier, slower and sensibly shallower on the very bottom

Takeaway: The Aavik I-880 is a high-performing, visually stunning integrated amplifier that brings music to life with both elegance and power. This amplifier is designed to be a centerpiece, both sonically and aesthetically, in any high-end audio system.

Video review

Our take on the brand

Aavik Acoustics crafts amplifiers using natural composite materials inspired by musical instruments, with their cabinets designed to enhance audio potential. Their products feature unique noise-cancelling technologies including Tesla coils and dither circuitry, while offering distinctive features like their U-300's input-specific gain adjustment system and the U-380's signature "aged-in-wood" bass sound.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
EMM Labs
Mtrs
65000
65000
/
6
Reviews

EMM Labs is proud to present its latest innovation in audio technology: the MTRS Stereo Amplifier. The MTRS is a 400W Stereo Class A/B solid-state amplifier. The MTRS is able to drive the most severe loads with no overall feedback, using Ed's completely re-designed high current Meitner Power Driver. The MTRS can handle any speaker load with ease, delivering high power, low distortion and wide bandwidth.

EMM Labs is renowned for its proprietary MDAC and MCLK technologies, which set benchmarks in precision digital-to-analog conversion and clocking. Founded by Ed Meitner, a celebrated audio engineer, the brand has a long-standing reputation for producing reference-level audio equipment trusted by recording studios.
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Our summary

Product Strengths

  • Musically complete, providing sound that is honest, true, thrilling, heart-warming, and emotionally rewarding
  • Able to drive difficult speaker loads with complex impedances and very low overall impedance
  • Offers real-time monitoring and automatic protection
  • The design results in musical triumph of transparency, nuance and dynamics
  • Ed Meitner is a respected designer

Product Considerations

  • During a test of maximum power into 2 ohms with one channel driven, the amplifier went into standby mode
  • The size (544mm wide and 584mm deep) and weight (82kg) of the MTRS may make it difficult to fit into a hifi rack and move
  • The input selector buttons on the partnering PRE preamplifier can be tricky to use
  • The down-firing status light colors may not match the manual's description
  • Bass flabbiness was noted around 68-77Hz due to room node exacerbation

Comparisons (according to reviewers)

  • Compared to monoblocks, the MTRS may not deliver as wide a soundstage or as breathtaking dynamic contrasts
  • The partnering PRE preamplifier is as close to the proverbial 'straight wire with gain' as has been seen, heard and measured in HFN for many years

Takeaway: The EMM Labs MTRS amplifier is a musically rewarding and transparent choice, especially when paired with its PRE preamplifier, and can drive difficult speaker loads well. The MTRS offers sophisticated protection and is built with exacting engineering.

Video review

Our take on the brand

EMM Labs is renowned for its proprietary MDAC and MCLK technologies, which set benchmarks in precision digital-to-analog conversion and clocking. Founded by Ed Meitner, a celebrated audio engineer, the brand has a long-standing reputation for producing reference-level audio equipment trusted by recording studios.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Electrocompaniet
AW 800 M Reference
45000
45000
/
5
Reviews
Electrocompaniet, a nearly 50-year-old hifi brand recognized by audiophiles and major recording studios worldwide, specializes in amplifiers with unique features like Floating Transformer Technology and fully balanced operation. Their amplifiers are designed with direct-coupled high open-loop bandwidth topology and zero feedback class A operation.
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Product Strengths

  • Very clean and noise-free output signal provides a stable soundstage with a very black background at any sound level
  • Exceptional bass control and depth delivers a powerful and tight bass response that underpins the overall musical experience
  • Offers flexibility with mono, stereo, and bi-amping operating modes, allowing for system upgrades and configuration changes
  • Dynamic and fast, reacting instantaneously to the signal it receives and delivering power and subtlety where needed
  • Continues the company's aesthetic with the massive perspex front panel covering

Product Considerations

  • Speaker binding posts may not be compatible with all types of speaker cable terminations, specifically thicker spades
  • The control for the illuminated 'E' on the front is located underneath the amp and may be difficult to access
  • May be more 'laid-back', which some may interpret as lacking ultimate transparency or strict neutrality
  • Provides only for XLR balanced inputs, though Electrocompaniet can provide appropriate high-quality adaptors for RCA connectors

Comparisons (according to reviewers)

  • Brings another level of control and depth to everything, compared to Totaldac Amp 1
  • The memorable blackness of bass pinged recognition, compared to Kinki Studio EX-B7 monos

Takeaway: The Electrocompaniet AW 800 M is a powerful and versatile amplifier known for its exceptional bass control, clean output, and dynamic performance. It is a great choice for audiophiles seeking a high-quality listening experience with flexibility for system configuration.

Video review

Our take on the brand

Electrocompaniet, a nearly 50-year-old hifi brand recognized by audiophiles and major recording studios worldwide, specializes in amplifiers with unique features like Floating Transformer Technology and fully balanced operation. Their amplifiers are designed with direct-coupled high open-loop bandwidth topology and zero feedback class A operation.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Dan D'Agostino
Momentum S250 MxV
44950
44950
/
5
Reviews

The Momentum S250 MxV stereo amplifier delivers the extraordinary sound quality of the Momentum M400 MxV monoblock in a more affordable stereo design. The circuit topology and construction of the stereo amplifier mirror those of the monoblock, using the same ultra-efficient copper heat sinks with venturi cooling, the same 1% metal-film resistors, the same 69 MHz output transistors and the same fully complementary balanced configuration. The result is audio fidelity equaled by no other amplifier—except, of course, the Momentum M400 MxV monoblock itself.

The leading compliment to the Momentum S250 MxV Stereo is the Momentum HD Preamplifier, creating a harmony worthy of any aficionado.

The Momentum S250 MxV models feature techniques and topologies initially developed and implemented in the Relentless Mono Amplifier. This fullest expression of the Momentum circuitry is reflected in the new model name, MxV. Those with a physics background will recognize that MxV or Mass times Velocity is the equation for Momentum.

Dan D'Agostino is an ultra-premium hifi brand distinguished by its unique copper heat sinks with holes and distinctive circular green-lit VU meters that give their amplifiers a steampunk aesthetic. Their amplifiers feature proprietary "Super Rail" technology that maintains high voltage for front-end transistors, while their three-chassis Relentless Preamplifier uses 30-pin interlocking connectors to eliminate wiring anomalies.
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Product Strengths

  • Incredibly resolving, with plenty of detail
  • Perfectly controlled, 'wide' sound in terms of dynamics and panorama
  • A quieter background brings forward a level of detail
  • A clearly structured form, with symmetrical divisions and repetitions
  • Inspired by the Relentless Epic amplifier series

Product Considerations

  • Speaker jacks accept only spades and bare wires, and connecting spades from the top bends the cable significantly
  • Components on the rear panel are placed close to each other and not particularly convenient to use

Takeaway: The Momentum S250 MxV amplifier delivers an immersive and detailed listening experience, making it great for those who enjoy actively listening to music. It brings out the best in loudspeakers, offering tremendous dynamics and a wide soundstage.

Video review

Our take on the brand

Dan D'Agostino is an ultra-premium hifi brand distinguished by its unique copper heat sinks with holes and distinctive circular green-lit VU meters that give their amplifiers a steampunk aesthetic. Their amplifiers feature proprietary "Super Rail" technology that maintains high voltage for front-end transistors, while their three-chassis Relentless Preamplifier uses 30-pin interlocking connectors to eliminate wiring anomalies.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

What competes at this price?

Audionet
Max
30500
/
Released
The at the same time diminutive and unsurpassable name of our majestic power amp reference MAX doesn't just refer to the physical size of these gigantic mono block(s). But rather merrily evokes the ultimate high performance capabilities nature and our scientists – not exactly in this order – have endowed it with.
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Audionet is a hifi brand whose Ultra Linear Amplifier technology, originally developed for medical applications, provides exceptional signal purity and stability. Their products, particularly the MAX monoblocks and DNP/EPX combo, are known for extraordinary dynamic performance and bass control.
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Our Summary

Product Strengths

  • Ample power with minimal distortion
  • Audionet's ULA (Ultra-Linear-Amplifier) technology, originally developed for medical engineering
  • Impressive dynamic prowess and the ability to plumb the hidden depths of CDs and LPs
  • Subtle musical and instrumental details come through cleanly and coherently, without compromising life-likeness of tone colors and harmonic expression
  • Exceptional bass reproduction, with a rich, detailed, and uniform low end

Product Considerations

  • Positive and negative speaker terminals are close together, requiring caution when connecting speaker cables
  • Balanced input use involves an op-amp, which some believe impacts sound quality, single-ended inputs are preferred by some
  • A preamp should be used to get the best sound from these amplifiers
  • Display text changes locations randomly, which some may find distracting

Comparisons (according to reviewers)

  • The Burmester sounded cleaner, airier, and more revealing, but could not quite compete with the AMP II MAX in authority over the bass frequencies and in blackness of the background
  • The Pass Labs was tonally rich and pleasurably soft, plus the amp gave an extraordinarily punchy presentation, in that it bettered the performance of the AMP II MAXes, on the other hand, it was rather general in the organization of the soundstage and the background wasn't quite as black as with the AMP II MAXes
  • Plinius shone in resolution, as well as delivered exceptionally dimensional soundstage and very neutral overall sound, especially in Class A mode, however, it did not have the same punch as the AMP II MAXes, and the sound wasn't equally gentle
  • The McIntosh MC-501 delivered a richer and warmer sound, but with less power and extension than the AMP II MAX

Takeaway: The Audionet Max monoblocks offer a powerful and refined listening experience, making music sound engaging and detailed. Their ability to control speakers and reveal nuances in recordings makes them a great choice for serious audiophiles.

Video review

Our take on the brand

Audionet is a hifi brand whose Ultra Linear Amplifier technology, originally developed for medical applications, provides exceptional signal purity and stability. Their products, particularly the MAX monoblocks and DNP/EPX combo, are known for extraordinary dynamic performance and bass control.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
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Burmester
911 MK3
35000
/
Released
The 911 MK3 power amplifier is a close derivative of the reference power amp 909 and is regarded as one of the quickest and most powerful amps in the audio world. Its strong performance is the result of the knowledge and experience gained during the design and manufacture of the much-acclaimed 909 power amp. The MK3 moniker indicates that Burmester's second largest power amp has reached its third generation of refinement.
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Burmester, a high-end audio brand renowned for its German craftsmanship, designs and handcrafts its components in Berlin. Known for its distinctive industrial aesthetic with chrome finishes, the brand supplies premium sound systems for Porsche and Mercedes-Benz.
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Our Summary

Product Strengths

  • Neutral and grain-free sound, not like typical solid-state or tube amplifiers.
  • Powerful and articulate bass, seamless and smooth mids, and extended, non-harsh highs.
  • Exceptional build quality and a luxurious feel with immaculate laser-cut detailing and silver anodizing.

Product Considerations

  • The glitzy appearance might be divisive.
  • High-quality source components and speakers are required to perform at its best.
  • The unit is large (almost 50cm wide) and very heavy (32kg), requiring a sturdy rack and careful handling during setup.

Takeaway: The Burmester 911 mk.3 provides exceptionally intricate, powerful, and dynamic sound, making it a very refined amplifier that is a treat for your ears. It is a top-performing amplifier made with great craftsmanship and build quality.

Video review

Our take on the brand

Burmester, a high-end audio brand renowned for its German craftsmanship, designs and handcrafts its components in Berlin. Known for its distinctive industrial aesthetic with chrome finishes, the brand supplies premium sound systems for Porsche and Mercedes-Benz.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
ampsandsound
Arch Monos
38695
/
Released
2023
The goal of the Arch is to showcase the fidelity and bandwidth that could be possible while still employing strictly analog circuits. Transcending the musicality of the 60s with the bandwidth and transparency possible in modern speakers the Arch seeks to offer true to source tonal character and significant power delivery to enable modern speaker fullest potentials.
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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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Our Summary

Product Strengths

  • Incredibly nimble, with every detail highlighted, providing an extra layer of resolution
  • Delivers all of the detail and clarity without the traditional fatigue
  • The balanced input transformer properly sums the positive and negative legs of the balanced signal, and in so doing retains much of the benefits that you normally achieve with fully balanced amps—noise rejection
  • The distortion numbers are exceptional for a tube amplifier
  • Compatibility with nearly every commercially available speaker, due to the support of three impedances (4 ohms, 8 ohms, and 16 ohms), and output power exceeding 60 watts with KT88s, and 80 watts with KT150s

Product Considerations

  • There are no modern reproductions of the 12BY7A, requiring matched pairs to run the amplifiers
  • The bias is fixed—it's selectable between settings, but dialing in the distortion could not be simplified further
  • Heavy at nearly 100 lbs each, as there's a lot of iron in both the transformers and the chassis work
  • A hint of tube noise was present in one channel when no music was playing, likely specific to the tubes used
  • Not a wise choice to any planer but complex crossovers and difficult loads have not compressed the amp in testing

Comparisons (according to reviewers)

  • Vs ampsandsound Zion Monos: The Arch Monos are more neutral, faster, and provide an extra layer of resolution, compared to the richer and more harmonic sound of the Zions
  • Vs TAD: The Arch is clean, powerful, and has many characteristics of very good solid-state amp, though the TAD approach was similarly neutral in many ways, albeit with a lightning quickness that the Arch did not have

Takeaway: The ampsandsound Arch Monoblock amplifiers are a technically proficient and beautifully built amplifier that delivers exceptional detail and clarity without fatigue. If one wants a vintage but modern sound, the Arch Monoblocks could be a good choice.

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
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Absolare
Hybrid Stereo
38000
/
Released
2022
The Absolare Hybrid Stereo Amplifier is the single chassis version of the Hybrid Monoblocks built upon similar architecture and sonic envelope. Absolare's Hybrid Stereo Amplifier is a solution for music lovers who cannot accommodate two Hybrid Monoblock chassis. With slightly less power than the Hybrid Monoblocks, simplicity is preserved with the critical tube input stage – a hallmark of all Absolare products.
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Absolare pioneered a hybrid amplifier design that combines the warmth of single-ended circuits with the control of push-pull formats, achieving the rare feat of bringing single-ended's signature midrange qualities to a hybrid configuration. Absolare is renowned for its luxuriously designed, leather-wrapped amplifiers and world-class expertise in vacuum tube hifi amplifiers.
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Our Summary

Product Strengths

  • Preserves the sonic signature of tube electronics, while being able to drive a wider range of loudspeakers
  • Has astonishing liquidity of timbre, and is utterly grain-free
  • Projects a sense of presence that sounds very much like the best SET amplifiers
  • Creates a directness of musical expression, fostering an intimacy with the music and performers
  • Produces a very warm midrange, and sweet top end

Product Considerations

  • Treble was less bright, and open than that of many other amplifiers
  • Favors warmth, fullness, and texture in the bass rather than slam and extension
  • May not be the most resolving amplifier for the money

Comparisons (according to reviewers)

  • The Absolare Hybrid sounded remarkably like the Passion 845 SET, but with deeper bass extension and greater dynamic authority

Takeaway: The Absolare Hybrid Stereo amplifier delivers the emotion of music like an SET amplifier, with the ability to drive a wide variety of loudspeakers. It creates a deep connection with musical meaning.

Video review

Our take on the brand

Absolare pioneered a hybrid amplifier design that combines the warmth of single-ended circuits with the control of push-pull formats, achieving the rare feat of bringing single-ended's signature midrange qualities to a hybrid configuration. Absolare is renowned for its luxuriously designed, leather-wrapped amplifiers and world-class expertise in vacuum tube hifi amplifiers.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
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Burmester
216
35000
/
Released
2023
The 216 stereo power amplifier seamlessly joins the legendary family of Burmester power amplifiers that have won many international awards. It combines powerful performance with great dynamics and excellent timing and shines sonically with an impressive spatial stage and musical warmth. The 216 helps even speakers with the lowest impedance values and complex loads achieve a spacious sound image with superior dynamics.
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Burmester, a high-end audio brand renowned for its German craftsmanship, designs and handcrafts its components in Berlin. Known for its distinctive industrial aesthetic with chrome finishes, the brand supplies premium sound systems for Porsche and Mercedes-Benz.
Expand Details

Our Summary

Product Strengths

  • Completely balanced and DC-coupled
  • Uses the Class A 'X-Amp' input stage technology from the 159
  • Has a high damping factor over the entire frequency range and a very wide, distortion-free Class-A range
  • The thermal concept uses 'universal heat pipes' to keep temperatures constant and low, increasing the lifespan of the amplifier
  • Signal processing reaches the input signal unaltered via silver cables

Product Considerations

  • The Burmester visual aesthetic will not please everyone
  • Power needs are consistently overestimated, and this amp has 100Wpc continuous into 8 ohms
  • The single-ended RCA inputs are not available on the back panel, unbalanced input requires an adapter

Comparisons (according to reviewers)

  • Vs Burmester 911 Mk 3: The 216 adds extra depth, precision, control, and ability to 'wig out' bass, also more reactive and dynamically dynamic
  • Vs Burmester 911 Mk 3: The 216 is the more liquid sounding of the two, is more dynamic, has better bass definition and control, a more even sounding treble, a more open midrange, a keener sense of rhythm

Takeaway: The Burmester 216 is a musical chameleon that is carefully and meticulously crafted, it will bring the best out of any genre. Its utter lack of electronic character is a huge plus, making it a worthwhile consideration for any audiophile.

Video review

Our take on the brand

Burmester, a high-end audio brand renowned for its German craftsmanship, designs and handcrafts its components in Berlin. Known for its distinctive industrial aesthetic with chrome finishes, the brand supplies premium sound systems for Porsche and Mercedes-Benz.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

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