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Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

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

What reviewers think

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

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Manufacturer details

  • Frequency Response: 20 Hz - 20 kHz (± 0,1 dB)
  • T.H.D.: < 0,01% (1 kHz; 0,1 W; 32 Ohm)
  • Signal-Noise Ratio: > 95 dB
  • Input Impedance: 33 kOhm
  • Max. Input Voltage: 4 Veff
  • Nominal Amplification Headphone Out: Low Gain: -2,66 dB, High Gain: 13,64 dB
  • Nominal Amplification Preamp Out: Low Gain: -11,06 dB, High Gain: 5,13 dB
  • Nominal Amplification Record Out: 0 dB
  • Inputs: 2 x Stereo RCA
  • Outputs: 1 x Stereo RCA Pre Out, 1 x Stereo RCA Rec Out, 1 x Headphone 6,3 mm Stereo jack, 1 x Headphone XLR 4-pin Stereo
  • Tubes: 2 x E180F/6SCH9P, 1 x ECC82
  • Weight: 3,6 kg
  • Dimensions (W x H x D): 210 x 85 x 277 mm
To get the best sound quality of your headphones, an external headphone amplifier is needed. In collaboration with degreed engineer Frank Blöhbaum we developed the KHV-200. It was designed that almost every headphone could be driven with the best sound quality. Beside a 6.3mm headphone socket it also has an 4 pin XLR socket for the connection of high end headphones.
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:

  • Vincent's designs utilize a hybrid approach, often pairing vacuum tubes in the preamplifier stage with solid-state components in the output stage, seeking to combine sonic warmth with reliable power delivery.
  • Vincent Audio often employs a separate, custom-made linear power supply in a second chassis, rather than a switch-mode "wall-wart," even in more affordable models.
  • Many Vincent products include tone controls, which can be bypassed, offering flexibility in tailoring the sound to different recordings and listening environments.
  • The brand's components frequently incorporate a built-in DAC, offering a convenient all-in-one solution for digital sources.

SV-200

  • Positioning: The entry-level model in Vincent's TubeLine series, offering a compact design.
  • Description: Features a compact size and high dynamic range, making it ideal for small rooms or setups where space is limited. Uses two 6N1 tubes for sound conditioning, providing a warm and natural sound, which is a step up from typical solid-state amplifiers. Compared to the SV-237MKII and SV-700, it offers less power but maintains a high-quality sound.

SV-237MKII

  • Positioning: The mid-range model in the TubeLine series, known for its modern design and enhanced connectivity.
  • Description: Features a modern design and Bluetooth connectivity, making it suitable for users who value aesthetics and wireless streaming. Uses two 6N1P NOS tubes in the preamp section, offering a natural and musical sound, which is more refined than the SV-200. While it provides more power than the SV-200, it is less powerful than the SV-737.

SV-700

  • Positioning: A high-performance model in the TubeLine series, offering a symmetrical design for improved sound quality.
  • Description: Features a symmetrical design, which minimizes crossfeed and distortion, providing precise bass and clear mid and high frequencies. Uses a Shunt Regulated Push-Pull concept with three tubes per side, offering superior sound quality compared to the SV-237MKII. Offers more power and sophistication than the SV-237MKII, but is less advanced than the flagship SV-737.

SV-737

  • Positioning: The flagship model of Vincent's integrated amplifiers, offering the highest power and advanced features.
  • Description: Features high power output and advanced connectivity options, including built-in WiFi for music streaming. Incorporates a newly developed preamp section benefiting from the SA-T7, providing a groundbreaking sound experience with more power than the SV-700.
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Avg. Product Price
$501-$1,000
Used For Sale
26
 Available (Scroll Down)
Brand Popularity
155
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
23
Founding Year
1995

Our take on the brand

Vincent Audio specializes in hybrid amplifiers that combine tubes and transistors, with their flagship models using military-grade tubes rated for 10,000 hours and Russian tubes for pre-amplification. Their amplifiers feature unique engineering choices like the BestPentode circuit and switchable Class A/AB operation, all designed to deliver a harmonious blend of subtle vocal reproduction and powerful rock stage dynamics.

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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Brand Page

What if you spend more?

No items found.

What competes at this price?

Feliks Audio
ECHO 2
943
/
Released
2022
Your introduction to tube sound – even entry level means high quality at Feliks Audio
Check Amazon
Feliks Audio is a Polish brand that handcrafts tube amplifiers, including their flagship Envy model which features single-crystal copper wiring and 300B tubes known for their linearity and low distortion. Their amplifiers stand out for their ability to drive both high-impedance dynamic and planar magnetic headphones, which is uncommon among tube amplifiers, while maintaining a low noise floor and delivering natural, warm sound.
Expand Details

Our Summary

Product Strengths

  • Unique and engaging musical experience, even with some hard-to-drive headphones
  • Natural, fluid, musical sound with a bit of warmth, superb soundstage, and resolution
  • Exceptional detail for the price category and low distortion
  • Great build quality and a pleasing aesthetic, being hand-built
  • Also works as a preamplifier for stereo setups

Product Considerations

  • Not designed for planar magnetic headphones or for low impedance headphones
  • May sound brighter, with lower bass quantity and precision, with low impedance headphones
  • Tubes are consumables and will burn out after a couple thousand hours of use
  • The power switch is located on the back, which some may find inconvenient

Comparisons (according to reviewers)

  • Vs SPL Audio Phonitor 2 amp—Echo 2 provides a more refined experience
  • Vs Hagerman Tuba—Echo 2 has better driving power and clarity for high impedance headphones
  • Vs Audio-gd Master 19—Echo 2 has a more natural tonality and deeper soundstage for high impedance headphones
  • Vs Violectric HPA V340—Echo 2 has a more magical musicality and a smoother presentation for high impedance headphones
  • Vs Burson Soloist 3X Performance—Echo MKII leans towards a slightly more relaxed sound, while Soloist leans into a more forward aggressive one, and the Soloist has stronger treble extension

Takeaway: The Feliks Audio Echo 2/MKII is a great tube amplifier for those who appreciate engaging and emotionally rich listening sessions, especially with high-impedance dynamic headphones. This hand-built amplifier offers a unique musicality and adds warmth and depth to music.

Video review

Our take on the brand

Feliks Audio is a Polish brand that handcrafts tube amplifiers, including their flagship Envy model which features single-crystal copper wiring and 300B tubes known for their linearity and low distortion. Their amplifiers stand out for their ability to drive both high-impedance dynamic and planar magnetic headphones, which is uncommon among tube amplifiers, while maintaining a low noise floor and delivering natural, warm sound.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

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