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

Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.

What reviewers think

Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.

Product Strengths

  • 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.

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

MI502

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 details

  • FTC Power Output Rating: 500 W
  • Power Output per Channel: 500 W into 8 ohms, 800 W into 4 ohms
  • Number of Channels: 2
  • Total Harmonic Distortion: 0.05%
  • S/N below rated output: 98dB
  • Dynamic Headroom: 8 ohms: 2.7dB, 4 ohms: 3.7dB
  • Damping Factor: 8 ohms: >85, 4 ohms: >45
  • Rated Power Band: 20Hz to 20kHz
  • Frequency Response: +0, -0.9dB from 20Hz to 20kHz
  • Unit Dimensions (W x H x D): 17-1/2" (44.45cm) (19" (48.3cm with mounting ears)) x 4-5/16" (11cm) (including feet) x 21" (53.3cm)
  • Unit Weight: 21.5 lbs (9.8 kg)
  • Shipping Weight: 37.9 lbs (17.2 kg)
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.
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. The applications are nearly limitless for how to use the versatile MI502 in your home entertainment system. It can be used to power the front left and right speakers in a home theater; to drive two in-wall subwoofers; a pair of MI502s could drive the three front channels of your in-home cinema plus one subwoofer; or to power a pair of outdoor speakers for when the party makes it way outside. Additionally, a stack of multiple MI502s could be used to power the distributed audio speakers installed throughout your home.
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:

  • McIntosh products blend classic, retro aesthetics, reminiscent of their 1970s designs, with modern materials and cutting-edge internal components, offering a unique visual appeal.
  • The brand's amplifiers are known for their substantial power output, often exceeding specifications, and their ability to drive a wide range of speakers across varying impedance levels due to their unique Autoformer technology.
  • McIntosh offers a high degree of customization and control through features like multi-band equalizers, adjustable input sensitivity, and advanced settings accessible via dedicated apps or web interfaces.
  • They distinguish themselves with a focus on long-term reliability and customer satisfaction, with products built to last for decades and supported by a dedicated dealer network.

MHT300

  • Positioning: Positioned as a versatile home theater receiver in McIntosh's lineup, suitable for custom installations or standalone display.
  • Description: Supports 8K/60Hz and 4K/120Hz video, making it ideal for modern home theaters. Unlike other McIntosh products, it offers 7.2 channel audio with expandability to 7.2.4, providing flexibility for future upgrades. This makes it perfect for users looking to integrate advanced video capabilities and immersive audio in a custom home theater setup.

MHA200

  • Positioning: A compact, high-quality headphone amplifier designed for personal audio enthusiasts.
  • Description: Uses vacuum tube amplification, delivering a warm and detailed sound that is distinct from solid-state amplifiers like the MC462. Its compact size and multiple impedance settings make it versatile for various headphone types.

MC462

  • Positioning: A powerful stereo amplifier, offering robust performance for high-end home audio systems.
  • Description: Features a Quad Balanced design with McIntosh Autoformers, providing 450 Watts per channel with low distortion. Compared to the MC1502, it offers a solid-state solution with increased dynamic headroom.

MC1502

  • Positioning: A high-power vacuum tube amplifier, ideal for audiophiles seeking classic tube sound.
  • Description: Delivers 150 Watts per channel using vacuum tubes, offering a rich, warm sound that contrasts with the solid-state clarity of the MC462. Its Unity Coupled Circuit ensures consistent performance across various speaker impedances.

MC901

  • Positioning: A unique dual mono amplifier, combining both vacuum tube and solid-state technologies.
  • Description: Integrates a 300 Watt vacuum tube amplifier with a 600 Watt solid-state amplifier, providing the best of both worlds for bi-amping loudspeakers. This hybrid approach is unlike any other McIntosh product.

MC21KW

  • Positioning: A flagship monoblock amplifier, representing the pinnacle of McIntosh's power amplification.
  • Description: Delivers 2,000 Watts of power, making it suitable for the most demanding audio setups. Its tri-chassis design and advanced technologies like Autoformer and Power Guard set it apart from other amplifiers.
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Avg. Product Price
$2,501-$5,000
Used For Sale
543
 Available (Scroll Down)
Brand Popularity
2
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
77
Founding Year
1949

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.

Look inside the brand

Brand Page

Our interview with the brand

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

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

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From our interview with
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What if you spend more?

Product image
McIntosh
MC8207
7000
7000
/
1
Reviews

At 200 Watts per channel, the 7-channel MC8207 home theater amplifier is perfectly capable of powering all the speakers in a 7.1 channel home theater to McIntosh's legendary standards. It features LED power output indicators instead of our traditional blue meters. These indicators will display the amplifier's power output just as the blue meters do but in a more understated way – making the MC8207 a perfect choice for darkened home theaters where the screen is the focal point.

In addition to 7.1 theater systems, it can also be used in 5.1 home theaters with 2 channels used to power a second zone in stereo mode. The McIntosh exclusive Dynamic Power Manager® (DPM) technology enables the MC8207 to deliver its full power into both 4 and 8 Ohm speakers, meaning it's compatible with a wide variety of home theater speakers – unlike many other high current amplifiers.

Just like our other home theater amplifiers, the MC8207 does not need cooling fans, eliminating fan noise that can interfere with the delicate nuances of a movie's soundtrack. Power Guard® will prevent potential speaker damage caused by clipping and over-driving of the amplifier. Short-circuit protection is provided by Sentry Monitor™ that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal.

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.
Check Amazon
Expand Details

Product Strengths

  • Fantastic overall sound quality with rich, powerful bass, a very musical midrange, and a clean, smooth treble response
  • Beautiful cosmetic design and built like a tank
  • Very black musical background
  • Good sense of dynamics, pinpoint imaging, and sound staging
  • Equal power into either 8 or 4-ohm loads

Product Considerations

  • Cannot dim or completely turn off the front panel lights or power meters
  • The chassis is very deep
  • Power supply generates an audible hum, though McIntosh says that this is normal
  • The XLR connectors are of the non-locking type

Comparisons (according to reviewers)

  • MC8207 is a lower-cost alternative to the then $9,500 MC207 flagship multi-channel amp
  • MC8207 used regular coated and rolled steel, while MC207 has a solid stainless-steel chassis, covers, and heatsinks
  • MC8207 has less expensive 'Ilumeter' displays instead of the expensive glowing blue analog VU meters of the MC207
  • The "Meter Off" and "Watts Hold" knobs of the MC207's front panel were replaced with a single power switch on the MC8207

Takeaway: The McIntosh MC8207 offers a combination of beautiful design, impressive build quality, and excellent overall performance. It has a signature house sound consisting of a rich midrange, clean, sweet treble, and potent bass output—which is a treat for audiophiles.

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Primare
A35.8
5247
5247
/
8
Reviews

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

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
EAR Yoshino
EAR 890
6351
6351
/
5
Reviews
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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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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Parasound
Halo A51
5749
5749
/
5
Reviews
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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Expand Details

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

What competes at this price?

Audio by Van Alstine
M750
2799
/
Released
2023
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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
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ADCOM
GFA-585se
3799
/
Released
2024
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.
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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.
Expand Details

Our Summary

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.

Video review

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
McIntosh
MHA200 (75th Anniversary Edition)
2800
/
Released
2021
The MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts who demand the most from their headphones. Its versatile set of connectivity options, including balanced inputs and outputs, allows for nearly all headphone types to be connected to enjoy an extraordinary personal listening experience.
Check Amazon
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

  • A lovely, lush sounding performance that's hard to dislike and sounds smooth but far from lifeless, delivering high levels of detail in a cohesive and musical manner
  • A sympathetic performer, it prefers to play to its inferior partnering equipment's strengths than overly expose their weaknesses, as many hifi audio examples tend to do
  • It can cater for a wide range of headphones and connections and it is a benchmark product that's highly recommended
  • Zero musical flaws to report and is nearly perfect in execution
  • A stunning design to the eye and ear, it is overall a wonderful addition for the perfectionist who wants the very best performance at home or even in the studio

Product Considerations

  • The volume control operation lacks linearity, making it hard to make subtle changes in level
  • No input selector, so one should only connect one type at once
  • On some samples, the volume control is loose and wiggles in its chassis housing
  • The octal AC socket is a bit of an odd choice, considering most users might prefer IEC
  • The depth, snap and weight of the low end was dynamic and exciting on some recordings and less than stellar on others

Comparisons (according to reviewers)

  • Vs Musical Fidelity M1 HPA—the MHA200 has a lush warmness to the music that brings strings to life in a way that makes the M1 HPA sound somewhat sterile in comparison
  • Vs EAR Yoshino HP-4 reference—the MHA200 was a touch brighter than the reference, though only slightly

Takeaway: The MHA200 is an enjoyable product with a rich, balanced, and powerful sound, that's more forgiving than most rivals and can be enjoyed for years to come. This headphone amp is perfect for personal listening, design, and operation that will work its magic.

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
McIntosh
MHA200
2800
/
Released
2021
The MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts who demand the most from their headphones. Its versatile set of connectivity options, including balanced inputs and outputs, allows for nearly all headphone types to be connected to enjoy an extraordinary personal listening experience.
Check Amazon
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

  • Delivers a lovely, lush-sounding performance that is hard to dislike, described as smooth but far from lifeless, delivering high levels of detail in a cohesive and musical manner
  • Creates an astonishing space and three dimensionality to the sound, reminiscent of high-end systems
  • Features a rich, balanced, and powerful sound that is more forgiving than most rivals
  • Superbly made and engineered with solid casework
  • Largely unphased by most headphones and can drive a wide range of headphones

Product Considerations

  • Volume control operation lacks linearity, making subtle changes in level difficult
  • Really needs a balanced source and headphones to deliver its best performance
  • Has no input switching, so balanced XLR and single-ended RCA inputs cannot be used simultaneously
  • Lacks a remote control for volume adjustment

Takeaway: The MHA200 is a well-built headphone amplifier that delivers a refined and musical listening experience with a spacious soundstage. It is ideal for users who want a dedicated headphone amplifier and appreciate the rich sound of tubes.

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
NAD
M23
3749
/
Released
2022
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.
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Julian Shapiro
ExtremeHiFi Writer
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