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.
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Amplitude8
reviews
Video Review
Manufacturer details
Features
Specifications
- Power Output (8Ω): 225 Watts RMS x8
- Power Output (4Ω): 375 Watts RMS x8
- Power Output (2Ω): 500 Watts RMS x8
- Frequency Response: +/- 0.5dB 0Hz to 20 kHz, load independent
- Damping Factor: > 6000 at 100 Hz, > 2000 20Hz to 20 kHz
- Signal to noise ratio: 125dB Referenced To Rated Output (A-Weighted)
- Crosstalk: < 85 dB
- Input Impedance: 47 kΩ
- Input Sensitivity: 6.15V (+18dBu) RMS balanced in = 225W into 8Ω out
- Power Consumption: <1W Standby, <80W idle, Max 1,8kW x2 full load
- Dimensions: 443 x 186.5 x 502 mm (17 3/4" x 7 11/32" x 19 3/4")
- Weight: 48 Kg (106 lbs)
Description
Achieving maximum performance in an Altitude 32 theater requires equally proficient amplification. That is the reason we created the Amplitude8 power amplifier. Optimized to work with Trinnov processors, it integrates seamlessly with the Altitude both visually and technically, and in operation creates a powerful three-dimensional soundstage, with huge dynamic range and bass impact to equal and exceed that of the best commercial theaters.
Achieving maximum performance in an Altitude32 theater requires equally proficient amplification. That is the reason we created the Amplitude8 power amplifier. Optimized to work with Trinnov processors, it integrates seamlessly with the Altitude both visually and technically, and in operation creates a powerful three-dimensional soundstage, with huge dynamic range and bass impact to equal and exceed that of the best commercial theaters.
State of the Art Performance The Hypex Ncore® NC1200 class-D power module represents the state-of-the-art for audiophile performance, with unparalleled clarity, musicality and resolution. It features the industry's lowest distortion and noise specifications, and its performance is frequency-independent. You'll find it in the finest audiophile monoblocks, and that's why we use it in the Amplitude8.
The audio performance of the Amplitude8 satisfies the most demanding audiophiles, and when watching movies, you'll find its silent background noise and enormous dynamic range ensures you'll hear every detail in the quietest passages and clean, undistorted output and impact when the soundtrack is at its highest loudness levels.
Feel the Power Think of this 8-channel class-D power amplifier as two high-output four-channel amplifiers on a single chassis, each with its own power supply. Each linear power supply is built around a separate heavy-duty t...
State of the Art Performance The Hypex Ncore® NC1200 class-D power module represents the state-of-the-art for audiophile performance, with unparalleled clarity, musicality and resolution. It features the industry's lowest distortion and noise specifications, and its performance is frequency-independent. You'll find it in the finest audiophile monoblocks, and that's why we use it in the Amplitude8.
The audio performance of the Amplitude8 satisfies the most demanding audiophiles, and when watching movies, you'll find its silent background noise and enormous dynamic range ensures you'll hear every detail in the quietest passages and clean, undistorted output and impact when the soundtrack is at its highest loudness levels.
Feel the Power Think of this 8-channel class-D power amplifier as two high-output four-channel amplifiers on a single chassis, each with its own power supply. Each linear power supply is built around a separate heavy-duty t...
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:
- Trinnov's core technology, the Optimizer, utilizes a sophisticated 3D microphone system to perform detailed time- and frequency-domain measurements of the listening environment, enabling precise room correction and speaker optimization.
- The brand's products stand out for their ability to remap speaker locations virtually, correcting for less-than-ideal placements and creating a more accurate and immersive soundstage.
- Unlike many processors relying on fixed DSP chips, Trinnov utilizes a software-based architecture on an Intel platform, offering flexibility through software updates and support for the latest audio formats and features.
- They offer extensive customization options, including fully assignable channels, comprehensive bass management, and target curve adjustments, allowing users to fine-tune the audio to their specific tastes and room characteristics.
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Select product comparisons
Amplitude8
- Positioning: A high-performance 8-channel power amplifier for home theaters.
- Description: Uses Hypex Ncore NC1200 class-D power modules, providing excellent clarity and resolution. Delivers 225W into 8 ohms, 375W into 4 ohms, and 500W into 2 ohms, making it more powerful per channel than the Amplitude8M.
Amplitude16
- Positioning: A versatile 16-channel power amplifier for immersive home cinemas.
- Description: Features dual power supplies and ICEpower class D modules, delivering up to 400W per channel at 4 ohms. Offers more channels and power flexibility than the Amplitude8 and Amplitude8M.
Altitude16
- Positioning: A mid-range immersive sound processor for home cinemas.
- Description: Supports up to 20 discrete channels with Dolby Atmos, Auro-3D, and DTS:X Pro, offering high-resolution audio processing. Provides a more accessible option compared to the Altitude32, with fewer channels while maintaining high sound quality.
Altitude32
- Positioning: A high-end reference immersive audio processor for home theaters.
- Description: Supports up to 34 discrete channels and offers exceptional configurability and sound quality. Surpasses the Altitude16 with higher channel counts and processing power.
Altitude48EXT
- Positioning: A premium extension for the most exclusive home theaters.
- Description: Extends the capabilities of the Altitude32, supporting up to 48 individual outputs. Designed for the most demanding setups, offering more channels and processing power than any other product in the lineup.
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Avg. Product Price
$10,001-$20,000
Used For Sale
8
Available (Scroll Down)
Brand Popularity
245
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
7
Founding Year
2003
Our take on the brand
Trinnov Audio is a hifi brand that pioneered immersive audio research and developed a unique 3D calibration microphone with four elements that measures speaker locations in three dimensions. Their flagship Altitude32 processor supports up to 32 discrete Atmos channels and includes the Dolby Atmos Object Viewer, which shows a real-time visual representation of sound objects in the listener's room.
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What if you spend more?
Balanced Audio Technology
Rex 500
25000
25000
/
5
Reviews
Balanced Audio Technology (BAT) designs all their components with fully balanced circuits and dual-mono power supplies, which deliver better channel separation and cleaner sound reproduction. BAT's signature approach includes zero global feedback and their Unistage circuit design, which amplifies the signal only once through a short signal path to preserve the original audio characteristics.
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Our summary
Product Strengths
- Powerful, able to drive any speaker at any level with ease
- Delivers a new dimension in realism at any volume level, exposing the timbre of bass instruments unlike ever heard before
- Reveals harmonic quality of instruments and voices
Product Considerations
- Heavy, weighing 140lb (63.5kg), requiring assistance for moving and unboxing
- High running temperature (55-65oC across the chassis) and draws 500W from the wall when idle
- When speaker cables are terminated with spade lugs, caution is advised as the posts are close together
- Output is floating—it should not be connected to any loudspeaker with a grounded 'black' terminal
- BAT components take a long time to "break in" (400-500 hours of use)
Takeaway: The BAT REX 500 is a very powerful amplifier that drives speakers with ease and reveals new levels of realism in familiar recordings. It is a must-audition for those seeking reference-level power amplification.
Video review
Our take on the brand
Balanced Audio Technology (BAT) designs all their components with fully balanced circuits and dual-mono power supplies, which deliver better channel separation and cleaner sound reproduction. BAT's signature approach includes zero global feedback and their Unistage circuit design, which amplifies the signal only once through a short signal path to preserve the original audio characteristics.
Product Page
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McIntosh
MC3500 Mk II
30000
30000
/
4
Reviews
McIntosh is one of the most iconic amplifier brands in the world, recognizable for its signature blue LED displays and distinctive industrial design. With a legacy spanning decades, McIntosh is known to many, even outside the audiophile community, and is sold in both mass-market retailers and specialized hifi stores. Their amplifiers are characterized by a warm, tube-like sound that enriches the midrange and smooths out the overall tonal balance.
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Our summary
Product Strengths
- Delivers 350 watts into 2-ohm, 4-ohm, or 8-ohm loads
- The design has a purity that is quite amazing
- Effortless power
- Soundstage is big
- Transparent
Product Considerations
- Not necessarily suitable for pairing with extremely cold sounding, sterile or bright speakers
Comparisons (according to reviewers)
- MC3500 is more open and airy, with base not as hard fisted, compared to Krell KSA 250
- It compares with brands like soulution, big Audio Research, and CH Precision, but at a lower cost
Takeaway: The MC3500 is an impressive amplifier that delivers a natural and pure sound, able to drive almost any speaker. If you're in the market for a McIntosh amp, this is the one that makes music sound pure, simple and unadulterated.
Video review
Our take on the brand
McIntosh is one of the most iconic amplifier brands in the world, recognizable for its signature blue LED displays and distinctive industrial design. With a legacy spanning decades, McIntosh is known to many, even outside the audiophile community, and is sold in both mass-market retailers and specialized hifi stores. Their amplifiers are characterized by a warm, tube-like sound that enriches the midrange and smooths out the overall tonal balance.
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Electrocompaniet
AW 300 M
29000
29000
/
4
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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Our summary
Product Strengths
- Prodigious bass output and rich tonality, especially for a solid-state design
- Great presence, a black background, and strong resolution playing effortlessly at very high volume levels
- Offers a wide, well-defined soundstage
- Beautifully designed with a luxurious appearance, relatively compact dimensions, and attention to detail in its internal layout
- Reserves of power will comfortably drive a wide range of speakers to high levels
Product Considerations
- Attacks can be slightly soft on some material
- The soundstage, while wide and well-defined, may lack the pinpoint accuracy and layered depth of some reference amplifiers
- Requires support beneath it on carpeted floors to allow sufficient airflow
Comparisons (according to reviewers)
- Vs soulution 511, the soulution 511 was faster and more accurately conveyed bass notes, threw an image with greater accuracy, and was more open on top
Takeaway: The Electrocompaniet AW 300 M is a gutsy and poised monoblock amplifier that delivers lots of power and handles a variety of speakers, giving an excellent listening experience. Its solid build and high performance make it a great choice for those seeking high-end audio quality.
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.
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MOON
861
21999
21999
/
4
Reviews
The MOON 861 is a power amplifier with the pedigree of the distinguished MOON 888 and the wholistic design philosophy of the North Collection.
MOON by Simaudio is known for their warm and natural "MOON sound," achieved through their proprietary Lynx circuit that eliminates global-feedback loop in their amplifiers. Their products feature fully balanced circuitry and customizable interfaces, with designs that minimize noise and distortion while revealing intricate audio details without harshness.
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Product Strengths
- Great build quality that feels solid and built to last
- Impressive control, speed, and transparency in sound reproduction, resulting in a highly satisfying and natural sound
- Excellent bass grip, with precisely layered and insightful basslines
- Each instrument is distinct within the orchestra
Product Considerations
- Speaker cable terminals are a bit tight, especially with larger spades
- Software may need updates to ensure devices connect seamlessly
- Setup may be crucial to get the best sound
- According to one commenter, the treble can be hard and tiring
Comparisons (according to reviewers)
- The 861 exceeds the Moon 860A v2 in performance due to improvements in isolation, mechanical damping, and power supply
- The 861 has less pronounced colors than Burmester 218 amplifiers
- The 861 has more weight and oomph than Octave MRE 220 SE
Takeaway: The Moon 861 is a powerful and well-built amplifier that delivers a natural and detailed sound, with excellent control and dynamics. With its power and balanced sound, listeners may find themselves enjoying music even more.
Video review
Our take on the brand
MOON by Simaudio is known for their warm and natural "MOON sound," achieved through their proprietary Lynx circuit that eliminates global-feedback loop in their amplifiers. Their products feature fully balanced circuitry and customizable interfaces, with designs that minimize noise and distortion while revealing intricate audio details without harshness.
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What competes at this price?
Trinnov
Amplitude16
12500
/
Released
2021
Designed to our specifications in partnership with ICEpower, the Amplitude 16 maximizes the performance of their class D modules with custom dual power supply and heat dissipation design. The Amplitude 16 is the most versatile power amplifier ever designed to address the varying needs of your immersive home theater.
Trinnov Audio is a hifi brand that pioneered immersive audio research and developed a unique 3D calibration microphone with four elements that measures speaker locations in three dimensions. Their flagship Altitude32 processor supports up to 32 discrete Atmos channels and includes the Dolby Atmos Object Viewer, which shows a real-time visual representation of sound objects in the listener's room.
Expand Details
Our Summary
Product Strengths
- Superb dynamics and soundstage, bringing music and movie soundtracks to life in a thrilling way
- Convenient one-chassis design, packing 16 channels into a standard size component, saving rack space
- Channels can be bridged to double the output power for specific speakers
- High build quality with a full-metal chassis and thick aluminum front plate
- Designed to match Trinnov's Altitude processors, maximizing dynamic range and signal-to-noise ratio
- Clean, powerful, responsive delivery, elevating any multichannel system
Product Considerations
- It runs hot, requiring good ventilation or active cooling
- The Altitude16 processor does not have DB25 outputs to match it
- Although efficient, Class D design still generates some heat
- It needs two AC power inlets, both of which are required whether running a single amp channel or all 16 of them
Comparisons (according to reviewers)
- Compared to ATI amps (Hypex Ncore), the Amplitude16 replaces two ATI amps in one review, consolidating channels into one box
Takeaway: The Trinnov Amplitude16 is a powerful and stylish amplifier that delivers exceptional performance for immersive audio. If many channels are needed and a streamlined setup is desired, this could be a great addition to a home theater.
Video review
Our take on the brand
Trinnov Audio is a hifi brand that pioneered immersive audio research and developed a unique 3D calibration microphone with four elements that measures speaker locations in three dimensions. Their flagship Altitude32 processor supports up to 32 discrete Atmos channels and includes the Dolby Atmos Object Viewer, which shows a real-time visual representation of sound objects in the listener's room.
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Chord Electronics
Ultima
15375
/
Released
2023
The ULTIMA mono power amplifiers have been conceived for the very finest high-end audio systems, those which by their very nature, tend to have the most demanding and most difficult-to-drive large loudspeakers. They deliver unsurpassed power and are capable of effortlessly driving any speaker.
Chord Electronics designs and manufactures all their products in Great Britain, setting themselves apart by using proprietary FPGA technology instead of off-the-shelf DAC chips found in most competitors' products. Their DACs and portable audio devices, featuring distinctive color-changing buttons and portholes, deliver studio-grade performance through unique technologies like the Watts Transient Aligned filter, which provides more natural and detailed sound reproduction.
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Our Summary
Product Strengths
- Offers a remarkably smooth, unforced, and natural presentation with a touch of warmth
- Excels in detail retrieval and textured presentation of instruments and vocals, making the music feel alive
- Presents a wide and holographic soundstage, especially when paired with speakers that are already strong in this area
- Demonstrates agility, precision, and clarity, combined with a naturalness that eluded earlier generations of Chord amplifiers
- Scales dynamically and has the ability to punch hard when required
Product Considerations
- Has a minimalist design with just four line-level inputs, lacking features like phono stages, tone controls, headphone outputs, or DAC modules
- Some may find its sonic signature prioritizes articulation over qualities such as richness and authority, potentially sounding thin if partnered poorly
- Balance control has no center indent or marked position
- The polychromatic lighting may be an issue for the color-blind
- Remote operation can be affected by direct sunlight
Comparisons (according to reviewers)
- Vs Rega Elex-R Mk3, the Chord Ultima Integrated delivers undeniably elevated sound in all respects, with greater dimensionality and smoother vocals
- Vs Bryston 7B 3 monoblocks, the Chord Ultima Integrated offers a weightier and more thunderous delivery, especially in the midrange and vocals, with more inner warmth in tone
- Vs Benchmark AHB2, the Chord Ultima Integrated provides a more energetic and fun listening experience, with Thor-like bass impact and overall superior dynamics
- Vs Accuphase E-270, the Chord Ultima Integrated is warmer, rounder, more powerful, and refined, with a more fluid and emotionally engaging performance
Takeaway: The Chord Ultima Integrated is a unique and well-built amplifier that combines a visually pleasing design with a captivating sound, full of detail and dynamic precision. It brings music to life with an engaging and immersive experience, making it a worthy addition to any audiophile's setup.
Video review
Our take on the brand
Chord Electronics designs and manufactures all their products in Great Britain, setting themselves apart by using proprietary FPGA technology instead of off-the-shelf DAC chips found in most competitors' products. Their DACs and portable audio devices, featuring distinctive color-changing buttons and portholes, deliver studio-grade performance through unique technologies like the Watts Transient Aligned filter, which provides more natural and detailed sound reproduction.
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AGD
Duet
11500
/
Released
2024
AGD Productions uses GaN (Gallium Nitride) technology in their amplifiers, which are housed in glass tubes reminiscent of classic vacuum tubes, delivering high power from a compact size with near-perfect square waves. The amplifiers are designed to be upgradeable as technology advances, with GaN modules that can be replaced, while handling complex impedance loads similar to high-end Class-A or SET tube amps.
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Our Summary
Product Strengths
- Compact size, lightweight, and runs cool compared to traditional high-end amplifiers
- Exceptionally quiet operation, with reviewers noting a complete absence of hum or buzz
- Delivers a clean, crisp, and neutral sound signature without added coloration
- Upgradeable design, allowing users to update the amplifier with new GaN modules as technology evolves
- Produces a Single Ended Triode-like midrange and top end
Product Considerations
- The polished finish is a fingerprint magnet, requiring the use of gloves for handling
Comparisons (according to reviewers)
- Vs AGD Audion MKIII: The Duets offer a cleaner and more refined sound with improved bass and greater immediacy and snap compared to the Audion MKIII
- Vs Daniel Hertz Maria: The AGD Duets seem to have a little more inner resolution
- Vs Pass Labs X250.8: The AGD Duets performed to a higher level
- Vs Peachtree GaN 1/VTV GaN amps: AGD amps seem to be on another level in regards to design, and the sound is more refined and beautiful
- Vs Aavik U-150, Luxman 595, Yamaha A-S 3200, Axxess Forte 1, Line Magnetic 219ia: The AGD Duets performed to a higher level
Takeaway: The AGD Duet amplifiers offer a blend of cutting-edge technology, exceptional sound quality, and user-friendly design. They are a great option for those seeking a high-end audio experience in a compact and energy-efficient package.
Video review
Our take on the brand
AGD Productions uses GaN (Gallium Nitride) technology in their amplifiers, which are housed in glass tubes reminiscent of classic vacuum tubes, delivering high power from a compact size with near-perfect square waves. The amplifiers are designed to be upgradeable as technology advances, with GaN modules that can be replaced, while handling complex impedance loads similar to high-end Class-A or SET tube amps.
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ASR
Emitter II
18750
/
Released
The Emitter II models are considered by true music connoisseurs and uncompromising audiophiles as the ultimate in amplifier construction. Through word of mouth alone, a music-addicted and steadily growing global fanbase has developed, who have realized their desire for a concert hall in their home environment. Powered by two separate power supplies, the most demanding speakers and elaborately built dynamic transducers are driven to peak sonic performance.
ASR Audio's Emitter II Exclusive amplifier creates a vast, tube-like soundstage and three-dimensional presentation without tube colorations, while maintaining exceptional transparency and a low noise floor. The brand stands out for its emphasis on measurements and scientific analysis in audio equipment evaluation, often sparking debates between measurement-focused and subjective listening-focused audiophiles.
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Our Summary
Product Strengths
- Known for combining the musicality of tube amplifiers with the precision and power of solid-state amplifiers.
- It provides a transparent sound with steel control, without the electronic 'shine' associated with transistor amplifiers.
- Exceptional bass performance, described as deep, explosive, and completely controlled.
- Homogeneous frequency range, offering a very high degree of transparency and control.
- Offers an ability to resolve even the finest musically significant details.
Product Considerations
- Requires a substantial amount of space due to its multi-component design.
- The sound offered might be 'too beautiful' for some listeners, as it is not 'brutal' or 'terse' enough.
- Requires care in using its switches to avoid shutdowns.
- Some reviewers note it was 'dark sounding' on the highs, though it did not lack information.
Comparisons (according to reviewers)
- Compared to Quad ESL loudspeakers, it surpasses the musicality and clarity achieved with many tube amps, rivaling even high-end options like Lamm Industries ML2.2 and Miyajima Laboratory 2010.
- The ASR has better bass and is more transparent than MBL, however, it lacks the grace that MBL offers.
- Compared to Rogue 180W monoblocks, the ASR Emitter II delivers better bass.
- The ASR Emitter II has slightly better bass control than Manley Neoclassic 500, but the Neoclassic 500 has a more marvelous style of fiddling.
- Compared to Edge and Audio Research, the ASR is darker sounding.
Takeaway: The ASR Emitter II Exclusive offers a combination of tube-like warmth and solid-state precision, making the listening experience a very involving one. It provides exceptional control and detail across the entire frequency range, making it a great choice for audiophiles.
Video review
Our take on the brand
ASR Audio's Emitter II Exclusive amplifier creates a vast, tube-like soundstage and three-dimensional presentation without tube colorations, while maintaining exceptional transparency and a low noise floor. The brand stands out for its emphasis on measurements and scientific analysis in audio equipment evaluation, often sparking debates between measurement-focused and subjective listening-focused audiophiles.
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Audio Research
Reference 80S
18500
/
Released
2021
The Reference 80S stereo amplifier continues Audio Research's latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package. The 80S was created with as much spirited authority as we can pack into a compact circuit with 2 KT150 tubes per channel for music lovers who want Reference-level performance at the lowest possible barrier to entry.
Audio Research is a hifi brand that has stayed committed to tube technology while many competitors moved to solid-state designs. The brand is known for its use of KT150 power beam tetrodes and hybrid power supply designs that blend tube amplification with solid-state regulation.
Expand Details
Our Summary
Product Strengths
- Delivers power while handling subtlety and fine detail with aplomb
- Presents an engaging and naturally organic soundstage
- Offers switchable Ultralinear and Triode tube configurations
- Hand-wired, hand-soldered, and hand-assembled
- The top end is silky, resolved, and decent, resulting in no listening fatigue
Product Considerations
- The bass is not that punchy as with the best high-end amplifiers
- The amplifier can be demanding towards the acoustics of the room due to its heavy-on-bottom balance
- Limited power handling that does not allow for playing too loud
- The 80S sounds more homogenous, although the listening is rewarding and entertaining
- Ensure existing speakers will work with the Reference 80S to satisfaction before purchase
Comparisons (according to reviewers)
- Vs Simaudio Moon 860A v2 power amplifier, the voice of Hana was warmer and velvetier through the Audio Research—a bit more human for my ears—although the sound was slightly less transparent and less controlled
Takeaway: The Audio Research Reference 80S is a tube power amplifier that delivers precision and subtlety. If high-end audio is desired and a lot of power is not necessary, the Reference 80S could be a good fit for a listening space.
Video review
Our take on the brand
Audio Research is a hifi brand that has stayed committed to tube technology while many competitors moved to solid-state designs. The brand is known for its use of KT150 power beam tetrodes and hybrid power supply designs that blend tube amplification with solid-state regulation.
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