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

Magazine reviewers and YouTubers have tried this product—so we've summarized their strongest opinions below.

Product Strengths

  • High power output
  • Great sound
  • Low noise
  • Connectivity options

Product Considerations

  • Lack of protection circuitry
  • Users should never make any changes to input or output connections while the amplifier is turned on
  • Under no circumstances should the speaker terminals be short-circuited or either of the speaker terminal(s) be connected to ground
  • The storage capacitors inside continue to be 'powered-up' for many minutes after it's turned off
  • The Adcom GFA-585se proved to be unstable into a highly reactive load, meaning it is not recommended for use with electrostatic speakers

Takeaway: The Adcom GFA-585se provides a lot of power and great sound for the price. It's a good option for anyone looking for a high-quality amplifier.

How useful are hifi reviews? We consider them useful for three things: (1) Surfacing new products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've ever heard (this means they probably are legitimately great). (3) Identifying a product's unique attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we  discount what reviewers say because they heap praise on everything—rarely being negative for fear of souring relationships with manufacturers. Further, they seldom have more than a couple products on-hand at once, relying on their imperfect memories to compare to past products.

Compared to their other products

We think it's helpful to understand how this product fits into the brand's full lineup (below). To learn more about these products, visit the brand's page.

LUNA

  • Positioning: An entry-level, portable wireless speaker designed for ease of use and modern connectivity.
  • Description: Offers a distinct blend of wireless connectivity, long battery life (22 hours), and a design by Jacob Jensen that emphasizes simplicity and style.

GIA-275 SERIES II

  • Positioning: A compact, integrated amplifier combining both amplification and preamplifier functions with a range of connection options.
  • Description: Features a built-in high-resolution DAC and Bluetooth V4 with aptX support, offering an all-in-one solution for digital and analog sources.

GFP-915

  • Positioning: A stereo preamplifier engineered for high-fidelity signal routing and clean, transparent audio performance.
  • Description: Features a 192KHz/24bit internal DAC along with phono connectivity and tone controls, ensuring accurate and detailed audio reproduction. Compared to the integrated approach of the GIA-275 and the high-power focus of the GFA-565se, it is best suited for users prioritizing detailed preamplification in setups where refined signal control is essential.

GFA-565SE

  • Positioning: A high-power amplifier built for demanding high-end audio systems with a focus on driving challenging speaker loads.
  • Description: Delivers 250W into 8 ohms with high current drive, backed by a robust power supply that maintains low distortion even with complex loads. In contrast to the more integrated and preamplifier-centered designs of the GIA-275 and GFP-915, it is targeted at users needing maximum power output and performance.
See all the brand's products

Read the reviews

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An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022

Manufacturer's notes

Enormous power at an affordable price is what this amp is all about. A pure class A/B power unit, driven in parallel to deliver 450 watts/channel into 8 ohms with impeccable quality.
Enormous power at an affordable price is what this amp is all about. A pure class A/B power unit, driven in parallel to deliver 450 watts/channel into 8 ohms with impeccable quality. While developing the new GFA-585se, every single part was put under the microscope to create a better & upgraded version of what is already considered a great component in audio industry.
  • Output Power: 450 watts into 8 ohms, 600 watts into 4 ohms, 1000 watts into 8 ohms bridged
  • Frequency Response @ 1watt, 8-ohms: +0. -0.25dB, 10Hz to 20kHz
  • Power Bandwidth (0.25dB): 20Hz to 20kHz
  • Input Impedance: 22,000 ohms
  • Input Sensitivity: 2.681V rms, 450 watts into 8 ohms; 126 mV rms, 1 watts into 8 ohms
  • Damping Factor: >800, 20Hz to 20kHz
  • Dimensions: 10-3/4" x 19" x 19-3/4" (275mm x 482mm x 502mm)
  • Weight: 70.4lbs (32kg)
  • Shipping Weight: 79.2lbs (36kg)
  • Power: 120VAC & 230VAC / 50-60Hz
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Average Price
$2,501-$5,000
Used Products
56
 Available (Scroll Down)
Brand Popularity
318
 of 600+
Badges
Top 50 Brand
Top 250 Brand
Products
8
Founded
1979

Our take on the brand

ADCOM is a hifi brand that pioneered high-current amplifier designs with their GFA-1 model in 1979, and their Nelson Pass-designed GFA-555 became a milestone in budget amplifiers. The brand caters to audiophiles who prefer physical media, offering features like phono stages for vinyl enthusiasts, while maintaining a trade-in program for older ADCOM gear that reflects their commitment to product longevity.
Julian Shapiro
ExtremeHiFi
Brand Page
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What if you spend a bit more?

A35.8
5247
5247
/
8
Reviews
Primare

The A35.8 is Primare’s most powerful and flexible multi-channel amplifier, designed to serve the needs of virtually any high-performance multi-channel system through its ability for each pair of channels to be bridged to mono for an incredible level of power delivery and system building options, including 1500 watts of total output in a fully bridged bi-amped stereo configuration. Shipping June 2022!

Primare is a Scandinavian hifi brand whose UFPD 2 Amplification technology provides a consistent 26dB feedback loop gain across the entire audio range, making their amplifiers exceptionally stable and accurate. Their modular design approach lets users customize their systems by adding or upgrading components like DACs and network modules.
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Expand Details

Our Summary

Product Strengths

  • The A35.8 provides eight channels of 'unimpeachable Class D power in a fairly compact and very flexible package'
  • Flexible configuration options for power output to speakers are available, such as bi-amping and bridging
  • Each stereo pair can be bridged separately to make four times 375 watts (8 Ohms) from the eight times 150 watts
  • Fault-free sound quality
  • High quality fit and finish
  • The A35.8 offers flexible connectivity options

Product Considerations

  • The 20-amp power inlet is the seldom-seen variety with three horizontal blades
  • The speaker output posts are spaced too widely for dual-banana plugs
  • Cabling can be tricky
  • A high current power cord is needed
  • Lower gain is present, though this doesn't necessarily need to be an issue

Comparisons (according to reviewers)

  • Vs NAD M28, the A35.8 gets you one more channel and more versatility for a 10% price increase
  • Vs Benchmark AHB2, the Benchmark presented a more neutral tonal balance and undistorted soundstage
  • Vs NAD C 298 stereo amplifiers, the Primare seemed slightly more forward, often conveying an appealing liveliness

Takeaway: The A35.8 power amplifier is a flexible and versatile product worth considering for anyone seeking a high-quality multi-channel setup. Its ability to bridge channels offers many ways to configure your speaker system.

Video review

Our take on the brand

Primare is a Scandinavian hifi brand whose UFPD 2 Amplification technology provides a consistent 26dB feedback loop gain across the entire audio range, making their amplifiers exceptionally stable and accurate. Their modular design approach lets users customize their systems by adding or upgrading components like DACs and network modules.
Julian Shapiro
ExtremeHiFi Writer
Visit our
A35.8
page
Product Page
EAR 890
6351
6351
/
5
Reviews
EAR Yoshino
EAR Yoshino is a British hifi brand where each product is handmade from start to finish by a single engineer, with their amplifiers featuring a unique balanced bridge mode output stage design that assigns separate windings to each electrode on the output transformer. Their tube-based equipment, inspired by founder Tim de Paravicini's professional recording studio experience, is used by renowned artists like Pink Floyd and Mobile Fidelity Sound Labs.
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Our Summary

Product Strengths

  • The EAR 890 produces 70Wpc in stereo, and can be bridged to 140W in monoblock
  • Neutral sound that gets out of the way and lets the user enjoy the music
  • Complex and dense music textures are handled with ease, and dynamically demanding passages are sailed through
  • Articulate midrange
  • Detailed and realistic bass

Product Considerations

  • Removing/installing tube cages is difficult and time-consuming
  • The loudspeaker binding posts are positioned too close to the output transformers, making it hard to tighten them properly
  • Some assembly work appeared amateurish, specifically the use of silicone in various locations, such as fastening chassis wires
  • The amplifier can operate quite hot
  • May not have as much bass impact compared to solid state amps

Comparisons (according to reviewers)

  • The EAR 890 monoblocks achieve SET-like definition along with the authority and swagger necessary for most full-size speaker systems, when compared to Cary Audio 300B SET amps
  • The EAR 890 is as textured as the top LAMM designs, but with noticeably better neutrality and more power
  • The EAR 890 surpassed the deHavilland KE50As with a more articulate midrange, producing more color and separation in the microtones of instruments

Takeaway: The EAR 890 is easy to set up and sounds good with very little tweaking, making it easy to just sit back, relax, and enjoy the music. It's a good choice for people who want a tube amp that is both musical and powerful for their home listening experience.

Video review

Our take on the brand

EAR Yoshino is a British hifi brand where each product is handmade from start to finish by a single engineer, with their amplifiers featuring a unique balanced bridge mode output stage design that assigns separate windings to each electrode on the output transformer. Their tube-based equipment, inspired by founder Tim de Paravicini's professional recording studio experience, is used by renowned artists like Pink Floyd and Mobile Fidelity Sound Labs.
Julian Shapiro
ExtremeHiFi Writer
Visit our
EAR 890
page
Product Page
Halo A51
5749
5749
/
5
Reviews
Parasound
Parasound amplifiers are a favorite among hi-fi dealers because they offer a ton of power and performance without hitting crazy price levels. Designed by John Curl, their hifi and home theater amps are known for clean, neutral sound and an ability to power just about any system with ease. Sure, you can find better amps, but they come with serious diminishing returns. For a lot of people, Parasound hits that sweet spot where you feel like you’ve reached the endgame without spending a fortune.
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Our Summary

Product Strengths

  • Delivers amazing quality of sound and detail
  • Bulletproof amplification
  • Has a rhythmically soulful sound with a tremendously rich and natural midrange
  • The A51's bass is well-defined, extremely textured, and robust
  • With 250 watts on tap, the Parasound A51 will power virtually anything

Product Considerations

  • Due to its class A/AB design, the A51 does get a bit warm and should be installed in a properly ventilated space and/or rack
  • The A51 is large and heavy, and is best moved and/or positioned by two people

Comparisons (according to reviewers)

  • Compared to Rotel, the Rotel makes the M&K Sound system slightly bright with a bit of sibilance, while the Parasound is more neutral
  • Compared to Acurus A250, the Parasound had tighter bass, which is probably attributed to a better damping factor

Takeaway: The Parasound Halo A51 is a high-performance amplifier with great sound quality, detail, and build quality, making it an excellent choice for audiophiles and home theater enthusiasts. Its ability to deliver power and control to speakers makes it a valuable addition to any high-end audio system.

Video review

Our take on the brand

Parasound amplifiers are a favorite among hi-fi dealers because they offer a ton of power and performance without hitting crazy price levels. Designed by John Curl, their hifi and home theater amps are known for clean, neutral sound and an ability to power just about any system with ease. Sure, you can find better amps, but they come with serious diminishing returns. For a lot of people, Parasound hits that sweet spot where you feel like you’ve reached the endgame without spending a fortune.
Julian Shapiro
ExtremeHiFi Writer
Visit our
Halo A51
page
Product Page
Tempo di GaN
5500
5500
/
5
Reviews
AGD

The AGD “TEMPO” Stereo Amplifier is the new addition to our state-of-the-art Hi-End Power Amplifiers family. TEMPO is our first compact Stereo Amplifier utilizing the same unique technology of Gallium Nitride Power-Stage design already in use with all its Hi-End AGD siblings.

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

  • GaN technology allows for efficient power usage, with 94% of energy being turned into sound
  • Compact size challenges the notion that high-quality amps need to be large
  • Design and packaging create pride of ownership
  • It can be run in bridged mode to deliver 400 watts into one channel
  • Stability and ability to handle complex impedance loads

Product Considerations

  • The slight sonic signature may not be for everyone
  • If truly outrageous amounts of power are needed to drive speakers, a second AGD Tempo amp might be needed to run in a bridged configuration
  • High-frequency noise was discovered when XLR cables were not connected between them
  • Power cords can make a large difference, the included power cord doesn't flatter the amp
  • Some traditionalists may find it hard to accept that it's a Class-D amplifier

Comparisons (according to reviewers)

  • Compared to Peachtree Audio GaN400, the AGD Tempo reports to have better overall specifications
  • Compared to Parasound Halo A21+, the AGD Tempo is simply superior
  • Compared to Bricasti M30 monoblock amplifiers, the level of which the most subtle detail exists approaches reference Bricasti M30 monoblock amplifiers

Takeaway: The AGD Productions Tempo is a cutting-edge amplifier that offers a new take on audiophile amplification and rivals more expensive amplifiers. It can drive speakers easily while being energy efficient.

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.
Julian Shapiro
ExtremeHiFi Writer
Visit our
Tempo di GaN
page
Product Page

What else competes at this price?

MI502
4500
/
Released
2022
McIntosh
The MI502 2-Channel Digital Amplifier is a flexible component and welcome addition to a custom installed home audio or home theater system. It delivers world renowned McIntosh sound quality at a rate of 500 Watts into 8 Ohm speakers or 800 Watts into 4 Ohm speakers. It uses highly high-tech closed loop digital switching amplifiers and resilient power supplies that produce performance levels seldom heard in custom install audio.
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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.
Expand Details

Our Summary

Product Strengths

  • Tangible feeling of pure power and speed of delivery
  • Clean, neutral performance
  • Fulsome, fast, and fun sound
  • Thrillingly responsive to the dynamics of a sound mix
  • Drive needed to partner floorstanders hungry for power

Product Considerations

  • Chassis depth is a considerable 533mm
  • Low-end delivery may not be the best compared to some rivals
  • Green/blue aesthetic might not be for everyone

Takeaway: The MI502 is a powerful and responsive amplifier suitable for various applications and it looks good. It offers clean and neutral performance, making it a great choice for someone wanting to get a new amplifier.

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.
Julian Shapiro
ExtremeHiFi Writer
Visit
MI502
Page
Product Page
M750
2799
/
Released
2023
Audio by Van Alstine
The DVA M750 monoblock power amplifier is a stunningly musical high-fidelity amplifier that is designed to accurately preserve all of the energy of a live listening experience. The DVA M750 is rated at 750 watts into 8 ohms and will deliver even more into 4 ohms. This is the amplifier for those that want the ultimate in amplifier headroom.
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Audio by Van Alstine is a direct-to-consumer hifi brand known for its minimalist design philosophy and unique Single Ended Transistor amplifiers that operate in Class A at normal listening levels and switch to Class AB for higher power needs. The company has a long history of modifying classic audio equipment like Dynaco and Hafler, and continues to design and build their USA-made amplifiers with balanced and differential circuit designs that deliver excellent soundstaging at more accessible prices than comparable equipment.
Expand Details

Our Summary

Product Strengths

  • Impressive clarity, tighter bass, and more pinpoint accuracy of instruments in the soundstage compared to the SET 600
  • Great dynamic range, definition, and transparency, while maintaining the nuances and details of the original music recording
  • Designed to run cooler and last longer
  • Relative bargain for its performance level
  • Always sounded musical, a presentation which engaged the listener with music rather than calling attention to the gear

Product Considerations

  • A pair of amplifiers can provide enough power to damage almost any speaker system if carelessly used
  • Tone and timbre were not as rich and voluptuous as the reviewer tends to prefer, there seemed to be less meat on the bone
  • One of the five-way speaker binding posts spun when tightening spades, but there were no electrical or other performance issues from that

Comparisons (according to reviewers)

  • Compared to Audio by Van Alstine SET 600, the DVA M750 has more power, a quieter presence, more clarity, tighter bass, and even more pinpoint accuracy of instruments in the soundstage
  • Compared to Pass Labs XA30.8, the M750s are slightly more intense sounding

Takeaway: The DVA M750 Monoblock is a powerful amplifier with finesse and a large, quiet soundstage presented with exceptional clarity. It delivers a compelling and engaging musical experience.

Video review

Our take on the brand

Audio by Van Alstine is a direct-to-consumer hifi brand known for its minimalist design philosophy and unique Single Ended Transistor amplifiers that operate in Class A at normal listening levels and switch to Class AB for higher power needs. The company has a long history of modifying classic audio equipment like Dynaco and Hafler, and continues to design and build their USA-made amplifiers with balanced and differential circuit designs that deliver excellent soundstaging at more accessible prices than comparable equipment.
Julian Shapiro
ExtremeHiFi Writer
Visit
M750
Page
Product Page
M23
3749
/
Released
2022
NAD
Building on NAD's long tradition of identifying and developing cutting-edge amplification technology, the M23 HybridDigital Stereo Power Amplifier features Purifi Audio's Eigentakt™ design, a once-in-a-decade innovation that virtually eliminates harmonic and intermodulation distortion. Noise is inaudible, for a completely black background and exquisite micro-detail. Conservatively rated at 2x200W continuous into 8 ohms and 2x380W into 4 ohms, the M23 can deliver live performance levels through any loudspeaker.
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NAD Electronics pioneered affordable hifi equipment by focusing on essential features for good sound, with their classic NAD 3020 becoming the best-selling hifi amplifier in history. Their Masters Series features DirectDigital technology, the world's first closed-loop digital amplification that corrects output every 10 nanoseconds.
Expand Details

Our Summary

Product Strengths

  • The M23's build quality feels solid and elegant, with impressive small design details
  • The sound is striking in its purity and clarity
  • It offers up to three levels of gain, switchable on the back panel, to best fit the system
  • It provides a clear sound without sounding hard
  • It features Purifi Eigentakt Class D amplification, which provides virtually unmeasurable distortion levels

Product Considerations

  • The bass is clean but may be perceived as a little on the cool side and not as 'wompy-sounding'
  • The M23 is not a forgiving amplifier that makes everything sound sweet and wonderful—it's not for those seeking a soft and mellow sound
  • Bridging with speakers below 5 or 6 ohms is not recommended, as the amp will current limit and potentially shut down
  • The reviewer found ergonomical challenges using fancy speaker cables in bridged mode due to wide terminal spacing
  • The capacitive touch power button can accidentally trigger

Comparisons (according to reviewers)

  • Vs Bel Canto C6i: The M23 offered a layer of refinement and better reproduction of the recording space
  • Vs Pass XA25: The M23 had more transparent sound and detail, especially in the treble and upper mids, but lacked the organic quality of the XA25
  • Vs HiFi Rose RS 520: The M23 sounded cleaner and had better separation/depth, HiFi Rose seemed to have an EQ built-in, emphasizing midrange and bass
  • Vs NAD C298: The M23 is more neutral, deals with decay more naturally, and has better casework, making it look high-end
  • Vs Anthem M1 monoblock amplifiers: The M23 was slightly more transparent throughout the entire frequency range
  • Vs Bryston 4B 3: The Bryston had more grunt but the M23 is more neutral

Takeaway: The NAD M23 is a powerful and precise amplifier that delivers clean and clear sound, making it a great choice for audiophiles who want to hear their music as accurately as possible. It is especially well-suited for those looking to build a high-end system around a quality preamp or DAC.

Video review

Our take on the brand

NAD Electronics pioneered affordable hifi equipment by focusing on essential features for good sound, with their classic NAD 3020 becoming the best-selling hifi amplifier in history. Their Masters Series features DirectDigital technology, the world's first closed-loop digital amplification that corrects output every 10 nanoseconds.
Julian Shapiro
ExtremeHiFi Writer
Visit
M23
Page
Product Page
Halo A52+
4199
/
Released
Parasound
The Parasound A52+ is a versatile five-channel amplifier, delivering 180 watts per channel at 8 ohms. Its high-current design ensures powerful, clear sound, making it ideal for multi-room audio setups or home theaters. The A52+ combines power, efficiency, and precision to bring out the best in your speakers, whether used in stereo, multi-channel, or surround sound configurations.
Check on Amazon
Parasound amplifiers are a favorite among hi-fi dealers because they offer a ton of power and performance without hitting crazy price levels. Designed by John Curl, their hifi and home theater amps are known for clean, neutral sound and an ability to power just about any system with ease. Sure, you can find better amps, but they come with serious diminishing returns. For a lot of people, Parasound hits that sweet spot where you feel like you’ve reached the endgame without spending a fortune.
Expand Details

Our Summary

Product Strengths

  • Delivers ample, clean, and dynamic power to all channels, ensuring speakers reach their full potential
  • Designed by John Curl, featuring Class A/AB circuitry for a balance of warmth, richness, efficiency, and punch
  • Pleasing sound for dialogue and music, with very high-quality and detail
  • Versatile, suitable for both movies and music, with a low noise floor for quiet passages and great transparency—that doesn't color the sound
  • Built to last, with high-quality internal components
  • Signal-sensing power-on mode can be fussy and may require adjustment

Product Considerations

  • Super heavy and large, potentially requiring rearranging a system or dedicated rack space
  • Only available in anodized black

Comparisons (according to reviewers)

  • The A52 Plus has bigger parts and bigger power than the Outlaw Model 5000, including balanced XLR connections
  • A52 Plus is the 'teenager' compared to the elder Parasound A51
  • Parasound A52+ sounds better, is more accurate, and more powerful than the Denon receiver's amplifier section

Takeaway: The Parasound A52+ Halo is a versatile and powerful amplifier that delivers clean, dynamic sound for both home theater and music systems, with a build quality designed to last. This is a worthy investment for audiophiles and home theater enthusiasts who seek high-quality audio performance.

Video review

Our take on the brand

Parasound amplifiers are a favorite among hi-fi dealers because they offer a ton of power and performance without hitting crazy price levels. Designed by John Curl, their hifi and home theater amps are known for clean, neutral sound and an ability to power just about any system with ease. Sure, you can find better amps, but they come with serious diminishing returns. For a lot of people, Parasound hits that sweet spot where you feel like you’ve reached the endgame without spending a fortune.
Julian Shapiro
ExtremeHiFi Writer
Visit
Halo A52+
Page
Product Page
Starkrimson Stereo Ultra
4249
/
Released
2021
Orchard Audio
The Starkrimson® Stereo Ultra DMC offers phenomenal sonic performance. Its advanced design and meticulous construction ensure exceptional clarity, power, and dynamic range. Experience the nuances of your favorite recordings with crystal clear detail and realism. A must-have for discerning audiophiles, and music lovers/enthusiasts seeking to elevate their musical experience.
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Orchard Audio is a direct-to-consumer hifi brand that uses Gallium Nitride (GaN) technology in their Starkrimson amplifiers, which allows for faster switching and less distortion compared to traditional amplifiers. Their compact Starkrimson Mono amplifiers deliver 150 watts per channel with very low noise, and the company provides detailed specifications and measurements that are valued by the audiophile community.
Expand Details

Our Summary

Product Strengths

  • Exceptionally transparent sound output quality
  • Exceptionally powerful, capable of outputting 500W into a 4-Ohm load
  • Delivers a remarkably clean, transparent sound with very little noise or distortion
  • The amplifier's ability to reproduce bass is awe-inspiring and delivers deep, powerful bass without distortion
  • Runs cool and weighs very little for its sound output, making it easy to move around

Product Considerations

  • Options can be a little pricy, such as the 12v trigger and RCA inputs
  • The Starkrimson Stereo Ultra may lead to further system upgrades
  • Depending on your sources, the Starkrimson Stereo Ultra will play exactly what you feed it, good or bad, and if your source components are slow, the Starkrimson Stereo Ultra will not speed them up
  • Power on only after all connections are properly made, including the power cord, analog inputs, and speaker outputs, and wait five minutes after powering it off before removing any of the connections

Comparisons (according to reviewers)

  • Compared to the Krell S550i integrated amp, the Starkrimson Stereo Ultra showed a much faster and finer resolution of the upper frequencies of the human voice and a far greater ability to play more of the microdetails of a recording

Takeaway: The Starkrimson amplifier is well-built and provides a level of speed and transparency to hifi music that makes listening to music very fun. Its GaN modules can be upgraded and it is available in several configurations.

Video review

Our take on the brand

Orchard Audio is a direct-to-consumer hifi brand that uses Gallium Nitride (GaN) technology in their Starkrimson amplifiers, which allows for faster switching and less distortion compared to traditional amplifiers. Their compact Starkrimson Mono amplifiers deliver 150 watts per channel with very low noise, and the company provides detailed specifications and measurements that are valued by the audiophile community.
Julian Shapiro
ExtremeHiFi Writer
Visit
Starkrimson Stereo Ultra
Page
Product Page

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

Magazine reviewers and YouTubers have tried this product—so we've summarized their strongest opinions below.

Product Strengths

  • High power output
  • Great sound
  • Low noise
  • Connectivity options

Product Considerations

  • Lack of protection circuitry
  • Users should never make any changes to input or output connections while the amplifier is turned on
  • Under no circumstances should the speaker terminals be short-circuited or either of the speaker terminal(s) be connected to ground
  • The storage capacitors inside continue to be 'powered-up' for many minutes after it's turned off
  • The Adcom GFA-585se proved to be unstable into a highly reactive load, meaning it is not recommended for use with electrostatic speakers

Takeaway: The Adcom GFA-585se provides a lot of power and great sound for the price. It's a good option for anyone looking for a high-quality amplifier.

How useful are hifi reviews? We consider them useful for three things: (1) Surfacing new products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've ever heard (this means they probably are legitimately great). (3) Identifying a product's unique attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we  discount what reviewers say because they heap praise on everything—rarely being negative for fear of souring relationships with manufacturers. Further, they seldom have more than a couple products on-hand at once, relying on their imperfect memories to compare to past products.

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