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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
- Unique 'tube character' enhances the sound in a positive way
- Known for sweetness, euphony, and richness of tone
- Enhances microdynamics, drawing attention to finer nuances of volume
- Creates a more involved and textured soundstage
- Is a completely neutral headphone amplifier, as long as the output impedance synergy is observed
- Inputs and outputs are located on the back of the unit, which can be inconvenient
Product Considerations
- Not suitable for very inefficient planar headphones like the HE6 or Audeze LCD-4
- Not generally recommended for IEMs
- Can be susceptible to interference from Wi-Fi signals or other electronic components
- Depending on the headphone used, the environment, and the output being used, the unit may produce some noise floor
Takeaway: The Kenzie is a special tube amp that makes music sound sweet and detailed, improving the listening experience with many headphones, assuming the right setup is used. It's a good option for those who want to go beyond solid-state amps.
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
Kenzie OG
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
Video Review
Manufacturer details
Features
Specifications
- Input impedance: 10K ohm with alps pot
- Input Sensitivity: 520mV for full power out
- 32ohm power: 350mWatts RMS @ 1khz
- 300ohm power: 480mWatts RMS @ 1khz
- Frequency bandwidth (32ohm): 20hz -3db to 12khz -3db full power
- Frequency bandwidth (300ohm): 20hz -1db to 18khz -3db full power
- Noise (32ohm): 440uV RMS
- Noise (300ohm): 680uV RMS
- THD .1 Watt: 0.888%
- THD .3 Watt: 1.654%
- THD .5 Watt: 2.245%
- THD MAX: 2.705%
- Dimensions: 10.75" Wide x 8.75" Deep
- Output Impedance Options: 8/100 or 32/300
Description
Like many of our products, the Kenzie headphone amplifier evolved from our earlier designs – in this case, rave reviews about the SE-84's headphone section. The inevitable question followed; why didn't we build a dedicated headphone amp? Why indeed? After some research, we came to the conclusion that a headphone amplifier building on the much loved Darling circuit was the right choice for us.
The outstanding performance of the Kenzie headphone amplifier is made possible with custom wound ultra-high quality output transformers providing amazing frequency extension. The Kenzie does not use a voltage network, and has more than enough power to drive even the most difficult headphones. We chose 32 ohms and 600-ohm output taps to allow use with the widest variety of headphones; everything from Grado Labs, HiFiMan, Audeze, MrSpeakers, Sennheiser, and Beyerdynamic.
The Kenzie showcases the transformers on the chassis to frame in the unique 1626 single-ended tubes. We have included an Alps volume pot to allow attenuation and simplify the signal path. The Kenzie is one of the sweetest-sounding headphone amplifiers on the market. The 1626 is commonly referred to as the "Poor Man's 300B"; offering a similar level of warmth, texture, and soundstage depth. The 1626 is a WWII-era tube that was used as a transmitter tube in radar installations. The design is shy on pure output, but offers layers of texture and drive, and is paired with a massive choke and robust output transformers for ultra-quiet operation. As with all of our products, parts selection was crucial during this build and each chosen not for price, but for best quality and synergy.
Generation 2 of the Kenzie OG The close of 2021 has brought out more than 18 months of a global pandemic. During these challenging times...
The Kenzie showcases the transformers on the chassis to frame in the unique 1626 single-ended tubes. We have included an Alps volume pot to allow attenuation and simplify the signal path. The Kenzie is one of the sweetest-sounding headphone amplifiers on the market. The 1626 is commonly referred to as the "Poor Man's 300B"; offering a similar level of warmth, texture, and soundstage depth. The 1626 is a WWII-era tube that was used as a transmitter tube in radar installations. The design is shy on pure output, but offers layers of texture and drive, and is paired with a massive choke and robust output transformers for ultra-quiet operation. As with all of our products, parts selection was crucial during this build and each chosen not for price, but for best quality and synergy.
Generation 2 of the Kenzie OG The close of 2021 has brought out more than 18 months of a global pandemic. During these challenging times...
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:
- ampsandsound differentiates itself through its commitment to hand-built construction, using point-to-point wiring and turret boards in most models, reminiscent of classic amplifier designs.
- They specialize in custom-wound transformers, a closely guarded secret that significantly shapes the sonic characteristics and contributes to the robust power delivery and overall quality of their amplifiers.
- ampsandsound amplifiers like the Arch, Zion and Nautilus aim for exceptional linearity and low distortion, rivaling even solid-state designs, reflecting a modern take on vintage circuits.
- Their amps, like the Kenzie OG, emphasize "tube character" via a sweet, euphonic, and rich tonal quality, often without dramatically altering the downstream frequency response, creating a uniquely engaging listening experience.
Select products
Select product comparisons
Chubby Jinx
- Positioning: The entry-level stereo amplifier in the lineup.
- Description: Offers a sweet sound with its 6V6 tubes, providing warmth and texture. Unlike the Kenzie Ovation, which focuses on low noise for headphones, this is tailored for stereo listening with a more neutral and resolving sound, making it ideal for small rooms and budget-conscious users.
Kenzie Ovation
- Positioning: A mid-range hybrid amplifier designed for both headphones and speakers.
- Description: Praised for its romantic sound and low noise, making it perfect for high-efficiency headphones. It differs from the Bryce Monos by offering a more intimate sound with less power.
Stereo 17 - Little Nugget
- Positioning: A compact stereo amplifier offering a no-compromise entry into bespoke audio.
- Description: Known for its EL84 tube bliss, provides a stable 17 watts, making it suitable for high-sensitivity speakers in small rooms. Unlike the Nautilus, which offers more power and versatility, this focuses on delivering a liquid midrange.
Nautilus
- Positioning: A flagship personal audio integrated amplifier.
- Description: Celebrated for its dual-mono layout and ultra-wide bandwidth, offering a reference-class sound. It stands out from the Arch Monos by providing a more compact solution with excellent headphone compatibility.
Bryce Monos
- Positioning: High-end single-ended amplifiers in the lineup.
- Description: Deliver ultra-wide bandwidth and high output, making them suitable for most speakers. Compared to the Arch Monos, which offer more power, these focus on single-ended purity.
Arch Monos
- Positioning: The flagship monoblock amplifiers in the lineup.
- Description: Designed for ultimate fidelity and power, with a bandwidth of 2Hz to 110kHz. They surpass the Bryce Monos in power and transparency.
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Avg. Product Price
$2,501-$5,000
Used For Sale
4
Available (Scroll Down)
Brand Popularity
187
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
30
Founding Year
2015
Our take on the brand
ampandsound specializes in high-end, handcrafted tube amplifiers made in the USA. Their low-wattage amps pair perfectly with high-efficiency speakers and headphones. The company is known for classic, minimalist designs and a focus on delivering natural sound.
Look inside the brand
Brand Page
Our interview with the brand
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What if you spend more?
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What competes at this price?
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.
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
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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.
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.
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.
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Product Page
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