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

  • The EF400 offers high output power coupled with an R2R DAC, which is a rare combination.
  • It has a solid build.
  • It is easy to set up, with a driverless installation.

Product Considerations

  • Build quality, particularly the volume knob, falls short of competitors.
  • It has limited input options (only USB), lacking analog or optical inputs.
  • Imaging and staging performance are not the best.
  • It may not be the best match for low-impedance, high-sensitivity loads.
  • Some reviewers found the sound signature colored, not neutral, and the treble not the most resolving.
  • The EF400 does not meet the specified 4.4W power output in testing.

Comparisons (according to reviewers)

  • Vs Topping/SMSL: The EF400's chassis does not feel as solid as the products from Topping and SMSL.
  • Vs Denafrips Ares II: The chassis has a more glossy finish compared to the matte finish of the Ares II from Denafrips.
  • Vs DX5/K9: It does not measure as well as the DX5 and the FiiO K9.
  • Vs Questyle CMA-400i: The CMA-400i has a more reference sound and better imaging/staging, but the EF400 offers a more pleasing tonality with high impedance loads and higher output power.

Takeaway: The EF400 packs a lot into a good price range with good output, and it can be a fun way to present something different than other stacks at this price range.

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

EF400

reviews

[{"title":"Is this headphone amp worth buying? - EF400 Review","link":"https://www.youtube.com/watch?v=ZGNCYme2-fo","source":"The Headphone Show","datePublished":"2023"},{"title":"The NEW Hifiman EF400 is a Powerhouse!","link":"https://www.youtube.com/watch?v=kzf57wsCb9w","source":"The Headphone Show","datePublished":"2023"},{"title":"Hifiman EF400 Headphone Amp + DAC Review!","link":"https://www.youtube.com/watch?v=Ot1deY_MoKM","source":"Joshua Valour","datePublished":"2023"},{"title":"Hifiman EF400 - R2R Goodness but is it Reference Quality? - Honest Audiophile Impressions","link":"https://www.youtube.com/watch?v=ROVWUrZn658","source":"Z Reviews","datePublished":"2023"},{"title":"A $400 R2R Ladder DAC that is a great headphone amp? The Hifiman EF400. Great headphone amp and DAC!","link":"https://www.youtube.com/watch?v=-CvoizF7y5E","source":"GadgetryTech","datePublished":"2024"},{"title":"Not AS MUCH Power? HiFiMan EF400 Headphone AMP / R2R DAC","link":"https://www.youtube.com/watch?v=N9bRG8XFKoM","source":"GadgetryTech","datePublished":"2023"},{"title":"Hifiman's Black Box - Hifiman EF400 R2R DAC & Amplifier | This box has ALMOST everything you NEED","link":"https://www.youtube.com/watch?v=31YyZ7H7NwI","source":"Old Guy Hifi","datePublished":"2023"},{"title":"Hifiman EF400 Review & Measurements","link":"https://headphones.com/blogs/reviews/hifiman-ef400-review-measurements?srsltid=AfmBOooFMG5t36BEP80abXpqi71ugpGXw9agJCwemv7dhlnhIErg4mjo","source":"headphones.com","datePublished":""},{"title":"Review: HiFiMan EF400 - Odd One Out","link":"https://www.headphonesty.com/2023/06/review-hifiman-ef400","source":"headphonesty.com","datePublished":""},{"title":"Hifiman EF400 Review","link":"https://www.headfonia.com/hifiman-ef400-review","source":"headfonia.com","datePublished":""},{"title":"HIFIMAN EF400 Desktop R2R DAC and Headphone ...","link":"https://www.techpowerup.com/review/hifiman-ef400-desktop-r2r-dac-and-headphone-amplifier/4.html","source":"techpowerup.com","datePublished":""},{"title":"HIFIMAN EF400 Review","link":"https://headfonics.com/hifiman-ef400-review","source":"headfonics.com","datePublished":""}]
An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022

Manufacturer details

  • THD+N (Line out): Between 0.002% and 0.004%
  • Channel Separation: 125+/-3dB
  • Signal to Noise Ratio: 118+/-3dB (A Weighted)
  • Maximum Power Output: 4.4W per channel
  • Dimensions: 246.5mm(L)×228mm(W)×61mm(H)
  • Weight: 3.08kg
EF400 — Compact Desktop DAC/Amp with High Power and R-2R Musicality.
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:

  • HIFIMAN offers a wide range of headphone models, varying in tonality from warm to neutral to balanced, allowing for different listening preferences and catering to various audiophile tastes.
  • The brand is known for their "Stealth Magnet" design which reduces wave diffraction turbulence to lower distortion and improve transparency.
  • They incorporate planar magnetic drivers in many of their headphones, known for their speed, detail, and impactful bass response.

EDITION XS:

  • Positioning: An entry-level headphone offering compact design and affordability.
  • Description: Features stealth magnets design with a frequency response from 8Hz to 50kHz and low impedance for basic home or portable use. Compared to the mid-range options like AUDIVINA and HE1000SE, it provides essential performance for smaller rooms.

AUDIVINA:

  • Positioning: A mid-range headphone balancing clear audio performance with a reasonable price.
  • Description: Uses refined driver technology to deliver a natural sound signature and balanced frequency response for typical home listening setups. Compared to the simple approach of Edition XS and the more precision-focused HE1000SE, it offers enhanced detail while keeping costs moderate.

HE1000SE:

  • Positioning: A mid-range headphone engineered for improved clarity and dynamic range.
  • Description: Offers an extended frequency response from 8Hz to 65kHz and higher sensitivity for clearer audio reproduction in critical listening. In contrast to AUDIVINA's balanced performance, HE1000SE emphasizes precise tuning and a robust build.

SUSVARA:

  • Positioning: A high-end headphone crafted for immersive and detailed sound reproduction.
  • Description: Incorporates advanced driver engineering that extends its frequency range from 6Hz to 75kHz, supporting a wider and more open soundstage. Compared to mid-range models like HE1000SE and AUDIVINA, it offers broader performance and refined tuning.

SUSVARA UNVEILED:

  • Positioning: A premium headphone representing the pinnacle of the brand's lineup.
  • Description: Features cutting-edge materials and driver technologies that produce exceptionally detailed sound across its wide frequency spectrum. When compared with SUSVARA and other models, it delivers superior engineering and an expansive performance.
See All Products
Avg. Product Price
$501-$1,000
Used For Sale
13
 Available (Scroll Down)
Brand Popularity
286
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
92
Founding Year
2007

Our take on the brand

HIFIMAN is a hifi brand known for its planar magnetic headphones that use extremely thin diaphragms and acoustically transparent "Stealth Magnets" to reduce sound distortion. The company pioneered high-resolution portable audio players and creates electrostatic headphones that bring high-end sound quality to more accessible price points, as well as widely renowned flagship models such as the Susvara.

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?

What's your approach to customer support?

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

What other products pair best with yours?

From our interview with
.
Brand Page

What if you spend more?

Product image
HIFIMAN
EF6
1599
1599
/
5
Reviews
HIFIMAN is a hifi brand known for its planar magnetic headphones that use extremely thin diaphragms and acoustically transparent "Stealth Magnets" to reduce sound distortion. The company pioneered high-resolution portable audio players and creates electrostatic headphones that bring high-end sound quality to more accessible price points, as well as widely renowned flagship models such as the Susvara.
Check Amazon
Expand Details

Product Strengths

  • Specifically designed to drive the power-hungry HE-6 planar magnetic headphones.
  • Boasts 5 watts Class A per channel, providing massive output power.
  • Delivers a wonderfully lush and smooth sounding presentation.
  • Offers a clean and neutral tonality.
  • Exceptionally well-rounded in terms of genre selection.

Product Considerations

  • Lacks balanced circuitry option.
  • Does not include a remote control.
  • The buttons feel loose.
  • The lateral heatsinks can get quite toasty to the touch if played long enough.
  • The EF-6 arrived without a power cord.

Comparisons (according to reviewers)

  • Vs Schiit Lyr: The EF-6 stays noticeably cooler after an hour or so of usage.
  • Vs Schiit Mjolnir: The EF-6 edges out the Mjolnir for smoothness, the Mjolnir would be the closest for power, though tonally it is a bit brighter and more dynamic than the EF-6.

Takeaway: The EF-6 is a great choice for those seeking a powerful and versatile amplifier, especially for demanding headphones like the HE-6, with a smooth and engaging sound signature. It is a worthwhile investment for audiophiles seeking a high-quality listening experience.

Video review

Our take on the brand

HIFIMAN is a hifi brand known for its planar magnetic headphones that use extremely thin diaphragms and acoustically transparent "Stealth Magnets" to reduce sound distortion. The company pioneered high-resolution portable audio players and creates electrostatic headphones that bring high-end sound quality to more accessible price points, as well as widely renowned flagship models such as the Susvara.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
iFi
iDSD Diablo 2
1299
1299
/
25
Reviews
iFi Audio specializes in portable hifi audio players, offering compact DACs and headphone amplifiers for audiophiles seeking quality sound on the go. The brand also provides affordable audiophile gear, making quality hifi audio accessible to more people.
Check Amazon
Expand Details

Product Strengths

  • Delivers a vividly detailed and balanced sound, handling complicated mixes with skill
  • Able to extract a lot of information from digital audio files with apparent ease
  • A volume lock prevents accidental volume adjustments when the device is in a pocket or bag
  • Extensive specification including Bluetooth 5.4 with aptX Lossless compatibility and multiple inputs/outputs for versatile connectivity

Product Considerations

  • Some reviewers feel the device is not very pocket-friendly due to its size and sharp edges, making it better suited as a transportable—rather than a truly portable—device
  • The gain is set too high, making precise volume control difficult, especially with sensitive IEMs
  • Using IEMatch adds output impedance, which can negatively affect the tonal balance and dynamics of some IEMs
  • The length of the included USB-C cable is short, making it difficult to position the device on a desk

Comparisons (according to reviewers)

  • Compared to the iDSD Diablo 1, the Diablo 2 offers slight sonic improvements and better build quality, but at a higher price
  • Compared to the iDSD Signature, the iDSD Signature is considered by some to offer a better result for less money, with a more realistic instrument and vocal timbre, larger soundstage, and customizable features like crossfeed and bass boost
  • Compared to the FiiO Q7, the iDSD Diablo 2 has a vivid sound, where the FiiO Q7 has a smooth and wide sound

Takeaway: The iDSD Diablo 2 is a powerful and versatile DAC/amp that enhances headphone listening with its detailed sound and extensive features. It is a good choice for users who want a high-quality audio experience on the go or at their desk.

Video review

Our take on the brand

iFi Audio specializes in portable hifi audio players, offering compact DACs and headphone amplifiers for audiophiles seeking quality sound on the go. The brand also provides affordable audiophile gear, making quality hifi audio accessible to more people.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Marantz
Model 40n
2499
2499
/
20
Reviews
Marantz is a hifi brand known for its proprietary HDAM technology, which replaces traditional op-amps in their amplifiers for better sound quality. Their products include slim-design AVRs that fit better under TVs, and their flagship Model 10 Reference Integrated Amplifier delivers exceptional power with 250 watts into 8 ohms through its dual-mono symmetrical amplifier topology.
Check Amazon
Expand Details

Product Strengths

  • High-quality build and aesthetics, with a metal casing and elegant fascia made to a high standard
  • A clear, powerful, and spacious sound, with a presentation that is appealing right from the beginning
  • Plenty of power on tap, specified at 70W per channel into 8 ohms and 100W per channel into 4 ohms
  • Fantastic connectivity, with three pairs of line-level inputs, an MM phono stage, and outputs for a recorder and subwoofer
  • Capable network DAC/streamer with digital controls

Product Considerations

  • The dimpled effect flanking the extruded front panel gives the unit a further distinctive look, but the finish feels like plastic upon closer inspection
  • The HEOS app isn't bespoke to the 40n, many of the product's set-up options can only be accessed through the unit using the included remote control
  • Bluetooth pairing took longer than expected, and there were occasions when the app stopped being able to see or display the music server when switching inputs
  • The lettering on the remote control is impossible to read in dim light, and the buttons are too similar in size, resulting in fumbling in the dark

Comparisons (according to reviewers)

  • The Marantz Model 40n is a different proposition compared to the Marantz PM7000N, Marantz is keen to reposition itself as a luxury hifi brand and that intent is clear in the 40n's gorgeous build and aesthetics
  • Rival systems such as the Cambridge Audio Evo 150 and Naim Uniti Atom do a better job of engrossing listeners in the music, being more insightful, musically engaging, and dynamically exciting by degrees
  • Is super-sexy and distinctive styling, a higher level of fit and finish, a much better remote, and access to Sound United's HEOS streaming/multiroom audio platform wanted—or more coaxial and optical digital inputs, Dirac Live room-correction capabilities, more power, a more efficient topology, and access to Lenbrook's BluOS streaming/multiroom audio platform
  • At first glance it's hard to distinguish the Model 40n from its slightly costlier Marantz Model 30 sibling

Takeaway: The Marantz Model 40n is a stylish and feature-packed streaming amplifier that offers a musical and inviting performance. With its versatile connectivity options and impressive sound quality, the Model 40n is a great choice for modern, lifestyle hifi systems.

Video review

Our take on the brand

Marantz is a hifi brand known for its proprietary HDAM technology, which replaces traditional op-amps in their amplifiers for better sound quality. Their products include slim-design AVRs that fit better under TVs, and their flagship Model 10 Reference Integrated Amplifier delivers exceptional power with 250 watts into 8 ohms through its dual-mono symmetrical amplifier topology.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Chord Electronics
Anni
1680
1680
/
20
Reviews

Anni is our first-ever desktop integrated amplifier. Capable of driving both headphones and compact loudspeakers, Anni benefits from the company's proprietary ULTIMA circuit topology and is perfectly positioned to exploit the full potential of today's high-performance headphones, desktop monitors and high-resolution audio sources.

The new Anni desktop integrated amplifier forms part of the Qutest range and seamlessly complements the resolving abilities of the multi-award-winning Qutest standalone DAC and Huei phono stage. As a system, the Qutest components provide an unrivalled desktop audio solution, offering class-leading digital and analogue technologies for the modern music lover. The company's compact QSS (Qutest Stand System) modular equipment rack provides the perfect support, too.

Anni offers the recently announced dual-feed-forward error-correction circuit topology whether using headphones or compact loudspeakers. Anni's advanced technology allows it to drive any headphone load, error-monitored and compensated amplification at all times.

Benefitting from both 3.5 mm headphone outputs and ¼-inch (6.35 mm) outputs, so two can listen simultaneously, plus 4 mm banana-type loudspeaker outputs, Anni delivers 10 watts of quality ULTIMA amplification, controlled by a fascia-mounted volume control that also doubles as an input selector switch for Anni's two line-level inputs. A two-stage gain control for loudspeakers provides additional flexibility with a wide range of desktop monitors.

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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Expand Details

Product Strengths

  • Joyful sound signature with detailed output
  • Can power a wide range of headphones, due to Ultima technology
  • Compact design, stacks perfectly with the Qutest and Huei
  • Employs trickle-down Ultima technology to allow delivery of enormous peak current outputs
  • Solid build quality using CNC-milled aluminum casework and good heat dissipation
  • Connectivity options include headphone and speaker outputs

Product Considerations

  • No gain switch for the headphone output
  • Default gain level a bit high for sensitive IEMs
  • More power limitations with speakers than headphones—best for smaller, efficient speakers or nearfield listening
  • Runs hot, requiring good ventilation
  • The volume control feels a little wobbly and might be difficult to use in a very precise way, and there is some channel imbalance at very low volumes

Comparisons (according to reviewers)

  • Qutest/Anni pairing justifies its price premium thanks to a more composed and insightful presentation that offers notably more low-end authority, dynamic punch and tonal richness
  • Cyrus ONE HD is plusher, showing that Anni has strong niche appeal
  • The iFi xDSD Gryphon has digital inputs and built-in DAC, while Anni can power speakers

Takeaway: The Chord Electronics Anni is a compact and well-built amplifier that delivers a joyful and detailed sound, making it a great addition to a desktop setup for headphone and nearfield speaker listening. Its use of trickle-down Ultima technology ensures high-quality performance in a small package, and its ability to stack with other Chord devices makes it a good choice for those already invested in the ecosystem.

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

What competes at this price?

Chord Electronics
Mojo 2
650
/
Released
2022
The British designed and built Mojo 2 is the most advanced portable DAC and headphone amplifier in the world today. Winner of Best DAC (£300-£500) in the What Hi-Fi? Awards 2022, the Mojo 2 is entirely engineered around a powerful, custom-coded FPGA processor and benefits from several unique technologies.
Check Amazon
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.
Expand Details

Our Summary

Product Strengths

  • Improved battery management offering faster charging rates and better efficiency than its predecessor
  • Features a new USB-C data input for greater flexibility alongside other inputs
  • Offers the world's first lossless DSP for tone adjustments without degrading sound quality, providing customization options
  • Excellent resolution and dynamics with a large soundstage and extreme detail

Product Considerations

  • The Mojo 2 can get warm when in a pocket for a period of time
  • Complicated menu navigation with color-coded buttons that may require the manual
  • Still uses Micro-USB for charging, which some find outdated

Takeaway: The Chord Mojo 2 is an exceptional DAC/headphone amplifier for those seeking high-resolution audio and customized sound in a portable format that is easy to move. Its sonic accuracy, detailed soundstage, and improved features provide a versatile and enjoyable listening experience, making it a worthwhile consideration for audio enthusiasts.

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
iFi
xDSD Gryphon
599
/
Released
2021
On the desk or in your pocket, be ready for anything. Packed with award-winning features and functionality, the xDSD Gryphon takes the best tech from our desktop DACs to create a portable DAC/Amp that can rise to any challenge.
Check Amazon
iFi Audio specializes in portable hifi audio players, offering compact DACs and headphone amplifiers for audiophiles seeking quality sound on the go. The brand also provides affordable audiophile gear, making quality hifi audio accessible to more people.
Expand Details

Our Summary

Product Strengths

  • Versatile connectivity with both wireless (Bluetooth 5.1 with various codecs) and wired options (USB, S/PDIF, analog inputs) makes it suitable for various setups—from desktop to portable usage
  • Eloquent, informative, and entertaining sound quality, able to produce clear, non-artificial sound across different headphones
  • Features such as XBass II and XSpace provide additional sound shaping options for the user to customize the sound to their liking
  • The aluminum build provides a robust and premium feel, with a design that's described as sleek and comfortable to handle

Product Considerations

  • The user interface is not very intuitive
  • Decent headphones are needed to reveal its quality
  • The OLED screen can be difficult to read
  • Battery life is around six to eight hours

Comparisons (according to reviewers)

  • Compared to the hip-dac2, the Gryphon offers better sound quality, more features, and flexibility
  • Compared to the iFi GO bar, the Gryphon is bigger and has a built-in battery, and the GO bar is much smaller and draws power from the source device
  • Compared to the iDSD Diablo, the Diablo has more power for very demanding headphones, Gryphon has more functions
  • Compared to the Zen DAC, the xDSD Gryphon has a more sophisticated and detailed sound

Takeaway: The iFi xDSD Gryphon is a portable and versatile device delivering high-quality sound with extensive features that cater to audiophiles. Its ability to improve sound quality from various sources and its robust build make it a worthwhile investment for music lovers on the go.

Video review

Our take on the brand

iFi Audio specializes in portable hifi audio players, offering compact DACs and headphone amplifiers for audiophiles seeking quality sound on the go. The brand also provides affordable audiophile gear, making quality hifi audio accessible to more people.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Bluesound
Powernode
949
/
Released
2021
The Bluesound POWERNODE is the HiFi amp reinvented for the streaming age, combining audiophile-grade componentry and multi-room music capabilities to create an intuitive "just add speakers" hi-res sound system for modern music lovers.
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Bluesound is one of the best entry-level amps if you're looking to dip your toes into hifi. Reviewers love it for what it offers at the price—solid dynamics and tight bass, which is exactly what you expect from good Class D. It’s the go-to pick for people new to hifi since it gives you about 75% of the high-end experience without needing a ton of power. It’s perfect for smaller setups where you want good sound without going all-in on expensive gear.
Expand Details

Our Summary

Product Strengths

  • Punchy and musical performer
  • BluOS is a treat to operate
  • Convenient design as a source and amplifier in one, only needing speakers to complete the system
  • Engagingly musical performer—dynamically fluid and punchy, with plenty of energy
  • More neutral sounding now, making gains in clarity and insight across the frequency range
  • Connectivity options are through 3.5mm headphone-type connectors, shared with mini-TosLink connections

Product Considerations

  • Tough competition from other streaming amplifiers
  • No way to send data out to an external DAC
  • The Powernode was occasionally hard on transients and dynamic bursts
  • There is no included remote

Comparisons (according to reviewers)

  • The Marantz has a wider-scale, roomier soundstage and greater subtlety

Takeaway: The Bluesound Powernode is a superb streaming amplifier that is better than ever, offering excellent sonic talent and a well-rounded feature set. It provides a convenient and high-quality music experience for anyone looking to simplify their home audio setup.

Video review

Our take on the brand

Bluesound is one of the best entry-level amps if you're looking to dip your toes into hifi. Reviewers love it for what it offers at the price—solid dynamics and tight bass, which is exactly what you expect from good Class D. It’s the go-to pick for people new to hifi since it gives you about 75% of the high-end experience without needing a ton of power. It’s perfect for smaller setups where you want good sound without going all-in on expensive gear.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
FIIO
R7
699
/
Released
2023
The R7 combines transmitter/decoder/amp/preamp/media playback functions into one unit. Besides numerous connections and expansion capabilities as well as a wide variety of operating modes, It is also capable streams media on a gorgeous portrait screen for an extraordinary user experience. The R7 brings you an attractive-looking, easy-to-use and great-sounding desktop HiFi experience!
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FiiO stands out for integrating unique features into portable audio devices, such as their BTR7 DAC/amplifier with its screen and wireless charging, and their KB3 mechanical keyboard with a built-in DAC/amp. The brand caters to audiophiles seeking personalization through products like their pioneering X7 music player with interchangeable amp modules and their compact R7 desktop system that combines streaming, DAC, and headphone amplification capabilities.
Expand Details

Our Summary

Product Strengths

  • Extremely versatile, functioning as a streamer, DAP, DAC, headphone amp, and pre-amp all in one compact unit.
  • Clean audio quality, considered competitive for its price point.
  • Operates smoothly and similarly to a smartphone due to its Android 10-based OS, providing access to the Google Play Store.
  • Has dual THX AAA 788 plus headphone amps, which gives it the ability to power pretty much any headphone out there on the market with 3.6 watts of power.
  • Offers a wide array of connectivity options including 6.4mm, 4.4mm, and XLR headphone jacks, SD card slot, LAN, RCA outputs, optical and coaxial in/out, and USB-C port.

Product Considerations

  • The remote control is sold separately.
  • Android 10 is somewhat outdated now.
  • It is not a streamer/amp, so the cost of an external amp or active speakers will need to be factored in.
  • The size is a bit awkward, the height of the unit makes it problematic for some to fit on the desk.

Comparisons (according to reviewers)

  • Vs NAD C700 or HiFi Rose RS520: Audiophiles who prefer separate components may opt for higher-end solutions like the NAD C700 or HiFi Rose RS520.
  • Vs EverSolo DMP-A6: Although not as compact and slightly more expensive, the EverSolo DMP-A6 investment brings better connectivity and sound quality.
  • Vs FiiO R9 Desktop Media Player: The main differences include dual ESS Labs ES9038PRO DACs and an eight-channel THX788+ amp offering 7300mW, double the R7’s output.
  • Vs Pro-Ject Pre Box S2 Digital: The Pro-Ject Pre Box S2 Digital is a much smaller unit than the FiiO R7, but it also has significantly less capacity.

Takeaway: The FiiO R7 is a versatile device that brings a lot of functionality to a desktop setup. It's a good solution for someone who wants an all-in-one system that won't take up too much space.

Video review

Our take on the brand

FiiO stands out for integrating unique features into portable audio devices, such as their BTR7 DAC/amplifier with its screen and wireless charging, and their KB3 mechanical keyboard with a built-in DAC/amp. The brand caters to audiophiles seeking personalization through products like their pioneering X7 music player with interchangeable amp modules and their compact R7 desktop system that combines streaming, DAC, and headphone amplification capabilities.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
FIIO
K17
989
/
Released
2025
This is the next generation desktop decoding headphone amplifier, aiming to be a unique and excellent performer. It is a symphony of retro elegance and cutting-edge technology, featuring a unique design and rich functionality all wrapped in a powerful package. The FIIO K17 is not only the upgraded successor to the K9 Pro, it is also an exploration of new possibilities for a high-end desktop DAC and headphone amplifier.
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FiiO stands out for integrating unique features into portable audio devices, such as their BTR7 DAC/amplifier with its screen and wireless charging, and their KB3 mechanical keyboard with a built-in DAC/amp. The brand caters to audiophiles seeking personalization through products like their pioneering X7 music player with interchangeable amp modules and their compact R7 desktop system that combines streaming, DAC, and headphone amplification capabilities.
Expand Details

Our Summary

Product Strengths

  • The FiiO K17 does everything except amplify speakers; it's a streamer, DAC, headphone amp, and preamp.
  • Capable of pumping 4 watts into a 32-ohm headphone via balanced headphone outputs (4.4mm and 4-pin XLR).
  • It has a touchscreen that works well despite its compact size.
  • The FiiO K17 delivers exceptionally good sound for the price.
  • It supports Bluetooth streaming including LDAC and APTX support.

Product Considerations

  • On the silver version, the labels on the gain selector dial and the output selector dial have zero contrast, and can be difficult to read.
  • Streaming capabilities are limited to Rune or Airplay.
  • The streamer circuit disappears when switching to a different input, and the USB input is switched off when using any other mode.
  • Several reviewers mention bugs, and the need for firmware updates to resolve issues with functionality.

Comparisons (according to reviewers)

  • The K17 does more than the FiiO K19, with a more traditional Class AB amplifier, and the K17 delivers a slightly smoother and richer sound.
  • The K17 delivers better sound than the X-Duo TA32, with the TA32's stock sound being flatter and less engaging.
  • The K17 has comparable sound quality to the Schiit Bifrost 2 and more features.
  • The K17 delivers a slightly smoother and richer sound than the SMSL RAW DAC 1 and SMSL H400 stack.
  • The K17 headphone amp out is better than the HIFIMAN Serenade.

Takeaway: The K17 is a versatile device that functions as a DAC, headphone amp, preamp, and streamer. It has a retro design and is easy to use, making it a great option for a desktop audio setup.

Video review

Our take on the brand

FiiO stands out for integrating unique features into portable audio devices, such as their BTR7 DAC/amplifier with its screen and wireless charging, and their KB3 mechanical keyboard with a built-in DAC/amp. The brand caters to audiophiles seeking personalization through products like their pioneering X7 music player with interchangeable amp modules and their compact R7 desktop system that combines streaming, DAC, and headphone amplification capabilities.
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Julian Shapiro
ExtremeHiFi Writer
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