Astell & Kern HC4: Two-minute review

Astell & Kern is no stranger to digital audio in all shapes and sizes, and the A&K HC4 is its latest attempt to coax worthwhile sound quality from your smartphone or laptop – and for good measure, it’s got strong gaming credentials too.

It’s a thoroughly specified little device, from its high-end AKM AK4493S DAC chipset via its balanced and unbalanced headphone outputs to its support for UAC 1.0 as well as UAC 2.0 to ensure compatibility with as many gaming devices as possible. Its aluminium construction looks and feels smart, too – so while there’s not much of it, the AK HC4 nevertheless appears to offer decent value for money.

And when it comes to its single function – taking the digital audio information from your source device and converting it to the analogue equivalent – there’s plenty to admire here. The HC4 sounds big and organised, and extracts a lot of detail from a recording – it’s a peppy and informative listen. It overplays its hand somewhat where the highest frequencies are concerned, though, giving treble sounds a rather insubstantial and unyielding edge that is at odds with the rest of the work it’s doing. In a competitive and saturated market, then, does the A&K's plucky performance still make it one the best portable DACs going for the money? Let's see. 

Astell & Kern HC4 review: Price and release date

• Released in November 2023 
• Priced at $220 / £219 / AUS399

The A&K HC4 portable headphone amp/DAC is available now for $220 in the United States, £219 in the United Kingdom and in Australia, it'll cost you AU$399 or somewhere closely in that region.

The world is hardly short of portable USB headphone amp/DACs, though, and while the A&K refreshingly undercuts the $499 / £449 / AU$769 iFi GO Bar Kensei, it's still dearer than the five-star iFi hip-dac 3 (which can be yours for $199 / £199 / AU$349). 

So, competition is fierce at the level, and missteps will likely have repercussions. 

Astell & Kern HC4 review: Features

• AKM AK4493S DAC chipset
• 3.5mm and 4.4mm outputs
•  ‘Digital Audio Remaster’ technology

When it comes to features, you don’t have to read all that far down the HC4’s spec-sheet to realise that Astell & Kern is deadly serious. By prevailing standards, the feature-set here is formidable. 

The main business is taken care of by an AKM AK4493S DAC chipset that’s more commonly found doing its thing in (among many other devices) Astell & Kern’s well-regarded and witheringly expensive digital audio players. It’s compatible with every worthwhile digital audio file type, and is capable of dealing with content of up to 32bit/384kHz and DSD256 resolution.

Getting the information into the HC4 in the first place happens via the USB-C slot on the bottom of the device - Astell & Kern provides both USB-C / USB-C and USB-C / Lightning cables to get the job done. Getting it out again happens using either the unbalanced 3.5mm socket or the balanced 4.4mm equivalent on the top – it’s worth noting the 4.4mm output only supports five-pole jacks. 

Another feature Astell & Kern has incorporated from its pricey digital audio players is ‘digital audio remaster’ technology – it is designed to upsample the native sample rate of the source material to go beyond the limits of the source format. Sounds like quite a trick, doesn’t it? Astell & Kern reckons it delivers – and I quote – “more refined playback and… a delicate, analogue-like sound”. 

And by way of an encore, Astell & Kern has ensured the AK HC4 is compatible with as wide a selection of devices as possible by making the device’s USB-C input supports UAC 1.0 as well as UAC 2.0. Almost every smartphone, laptop and tablet supports UAC 2.0, but there are plenty of gaming devices that are still UAC 1.0 – but if you want a low-latency connection to your Playstation, Switch or what-have-you, the HC4 has you covered.   

Features score: 5 / 5

Astell & Kern HC4 review: Sound quality

• Detailed, informative sound
• Open and well-defined presentation
• Slightly skewed towards the top end

The AK HC4 is an admirably consistent device. During the course of this test I listened to 16bit/44.1kHz and 24bit/96kHz FLAC files via the Tidal app, loaded onto both iOS and Android smartphones, as well as some DSD128 stuff stored on the internal memory of a MacBook Pro. And while there are, of course, advantages to the higher-resolution stuff, the Astell & Kern doesn’t really alter its overall stance no matter what standard of content you’re listening to or the type of music you enjoy. Its fundamental attitude is always the same.

And in broad terms, it’s a revealing and explicit attitude. No matter if it’s the voice-and-guitar intimacy of Lua by Bright Eyes or the rather more complex Dirty Paws by Of Monsters and Men, the HC4 is able to see to the bottom of the mix and return with all sorts of information regarding tone and texture you may not previously have been aware of – certainly not if you’ve been listening directly from a smartphone to some wired or wireless headphones before now. 

Throughout the frequency range, detail levels are sky-high – and rather than draw attention to how clever and insightful it is, the HC4 puts everything into the correct context in order to poverty serve the recording. It’s dynamic both in the sense of ‘quiet/LOUD’ and where harmonic variations in a strummed guitar are concerned. And it creates a big, well-defined and easy-to-follow soundstage, and lays out a recording explicitly – but it doesn’t make any part of a recording sound remote from any other. There’s a singularity and idea of ‘performance’ to the sound of the HC4 that’s as enjoyable as it is impressive.

Low frequencies are substantial and properly controlled, so there’s never an issue where rhythms or tempos are concerned. The midrange is perhaps the greatest beneficiary of the A&K’s powers of analysis – there’s a stack of information about a vocalist available, and it makes for an immediate and positive description of a singer’s abilities and motivations.

It’s only at the top of the frequency range that things are anything less than fully impressive. There’s a glassiness and a rather relentless edge to the way the HC4 serves up treble information that a) puts it at odds with the rest of the frequency range where tonal balance is concerned, and b) discourages the listener from increasing volume levels much beyond ‘moderate’. The relative hardness and lack of substance to the top end makes those recordings with a high-frequency emphasis sound edgy – and overall it doesn’t make for all that relaxing an experience.  

Sound quality: 4 / 5 

Astell & Kern HC4 review: Design

• 65 x 30 x 15mm (HxWxD) 
• 31g 
• Aluminium construction

There’s usually not a lot of scope for ‘design’ to happen when a product ideally needs to be as light and compact as possible. But this is Astell & Kern we’re dealing with here – you won’t be surprised to learn that the company has given it a good go where ‘design’ of the AK HC4 is concerned.

The all-aluminium construction keeps the weight of the device down to a trifling 31g. It also allows for a hint of the trademark Astell & Kern angularity on the top surface, and for the sides to be mildly curved in order to make the HC4 easily graspable. 

One of the curved sides features a shallow rocker switch and a DAR on/off slider. At one end of the chassis there’s the USB-C input, and at the other end the balanced 4.4mm and unbalanced 3.5mm outputs. Apart from a tiny LED (which lights up in white to indicate standby, red for PCM and blue for DSD audio files), that’s your lot. And frankly, I am tempted to ask what else you might reasonably be expecting? 

Design score: 5 / 5 

Astell & Kern HC4 review: Value

• Priced in line with rivals
• Not a nailed-on winner

Just as you can’t judge a book by its cover, you can’t judge the effectiveness of a piece of consumer electronics simply by how big and/or heavy it is. The AK HC4 may not look like much, but the effect it can have on your listening experience can’t be denied – so in this respect, it represents decent value. 

When you compare it to the best of its rivals, though, it ceases to be a nailed-on favourite and becomes more of an interesting option… which probably undermines its value-for-money credentials somewhat.

Value score: 3.5 / 5 

Should I buy the Astell & Kern HC4 review:?

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Astell & Kern HC4 review: Also consider

How I tested the Astell & Kern HC4

• Used for over a week (after a thorough running in)
• Tidal and Qobuz were go-tos, using various headphones/IEMs

I spent over a week listening to the Astell & Kern HC4, using Apple iPhone 14 Pro and Samsung Galaxy S23 smartphones. I connected it to Sennheiser IE900 in-ear monitors via its 4.4mm balanced output and to a pair of Grado SR80x using its 3.5mm connection. 

I used it at home, navigating traffic, and on the train. I listened to music almost exclusively from Tidal and Qobuz (since these streaming services are full of high-resolution content and 24bit/192kHz standard), and I made sure to check for connectivity and cable noise as I did so (you're fine there). 

• First reviewed: June 2024
• Read TechRadar's reviews guarantee

iFi hip-dac 3: Two-minute review

USB-C ports and Titanium finishes are just so hot right now – and nothing is more desirable than this cheeky little audio accessory next to your shiny new iPhone 15. Even if you don't have Apple's freshest-baked iPhone (or a smartphone toting a USB-C port) your music al-desko from your laptop or tablet is about to get a whole lot better. 

iFi hip-dac 3's bid to enter our best portable DACs buying guide is a strong one: no sooner had Apple's quartet of iPhone 15 handsets rolled out in late September 2023 – a clutch of devices that finally ditched Apple's proprietary Lightning port in favor of USB-C as you doubtless know – a range of some of the best USB-C-toting DACs also arrived, wanting to turn your new iPhone into a hi-res audio music player. 

But none of those looks more resplendent next to your iPhone 15 Pro or iPhone 15 Pro Max in Natural Titanium than iFi's hip flask-esque hip-dac 3. If Apple were ever to make a DAC, I wager Tim Cook's engineers would seek to deviate from the ice-white AirPods aesthetic in favor of this gorgeous hue. It is referred to by its UK makers as 'Titanium Shadow', because it was purported to "change tone in different lights, with hints of bronze and vintage gold." And this is true, reader; while photographing the thing I struggled to capture its occasionally buttery hues, but these are quite beautiful.

And it's not all TikTok-able looks! Merely a trifle it is not, this thing comes from strong stock. Allow your eyes to feast upon original 2019 hip-dac in 'Petrol Blue', plus the hip-dac 2 (which I helped review for TechRadar's sister publication, What Hi-Fi?) the color of which looks for all the world like a good single malt but is actually called 'Sunset Orange'. As the name suggests, hip-dac 3 is the third in a lineup of excellent hip-prefixed DACs. And this iteration is by far the best. 

What are you getting for the 2023 update, aside from my favorite finish yet? There are now two USB-C ports in its base; the right-hand side for charging (it glows different colors to denote current onboard battery capacity), and the other for audio, thus maintaining a dedicated audio input for the purest signal path, which also means you can use the hip-dac 3 while connected to the mains – and that is rare against the competition. For clarity, the previous two hip-dac generations used USB-A for audio, and in the first-gen model, it was quite a deeply recessed male USB so not all spare cables played nice with it. 

There is an additional switch on the back of hip-dac 3’s casework now too, which grants you iFi’s IEMatch technology. It's a proprietary circuit designed to optimize the amp’s output to better suit high-sensitivity 3.5mm or 4.4 mm-ended headphones and earphones. Simply plug in your pickier 3.5mm or 4.4mm IEMs, flick the switch to 3.5mm or 4.4mm and you're away – particularly useful for some of the best wired headphones we've tested.

Ultimately, a standalone portable DAC's viability lies in whether it can make its supplementary presence worth it; you don't expressly need it (your iPhone has a tiny DAC in it, after all) but oh, once you've heard it, you'll struggle to go back to listening without it for detail, neutrality and clarity… 

iFi hip-dac 3 review: Price and release date

• Released October 6, 2023
• Priced: $199 / £199 / AU$349

The iFi hip-dac 3 is selling for $199 in the US (thus making it the same price as the Helm Audio Bolt) which means it slips into iFi's considerable DAC lineup somewhere above the cheaper iFi Uno (yours for around $79 / £79 / AU$119) and below the flagship iFi xDSD Gryphon ($599 / £599 / AU$899). 

It's worth mentioning that the inaugural February 2020 hip-dac retailed for $149 / £149 / AU$249 at launch, (and the hip-dac 2 cost $189 / £189 /AU$279) so there is an ongoing increase at play here – although it's a more palatable $20 / £20 hike rather than the $40 / £40 surcharge between the first and second iterations. 

Now, in 2023 the market does not want for reasonably affordable USB DAC/headphone amps – everyone from Chord to Astell & Kern has something for you. None are built quite like this though and honestly, few sound like it either. 

iFi hip-dac 3 review: Features

• Dual USB-C ports plus 3.5mm and 4.4mm balanced headphone outs
• 384kHz PCM, DSD256 and MQA compatibility
• IEMatch vastly reduces background hiss 

Let's get granular (gran-u-lar! I wanna get granular…): hi-res PCM and DXD audio data is supported at sample rates up to 384kHz here, alongside DSD from 2.8MHz to 12.4MHz (DSD64, 128 and 256, aka a sample rate that's 256 times as high as a regular CD). Full decoding of MQA is also supported by the iFi hip-dac 3, performing the full ‘three unfold’ decoding process (as opposed to just the final unfold in the manner of an MQA ‘renderer’ – and yes, there is still plenty of MQA content available on Tidal).

While my pick of the 3 best wireless DACs can level up the quality of music from your phone, they cannot support these kinds of hi-res figures over Bluetooth. 

On either side of the hip-dac 3's rotary volume control you'll find a pair of LEDs that change color to indicate the format and sample rate of the incoming audio, with seven different colors: yellow for PCM 44.1/48kHz, white for higher-res PCM files up to 3384kHz, teal for DSD 64/128, red for DSD 256, lime green for MQA, blue for MQA Studio, purple for original sample rate files (MQB). 

Yes, this DAC wants to get overtly specific about your file (more specific than most rivals), although teal and lime are pretty similar, and of course, it's tough to keep that information in your noggin at all times. 

Another point of note is that hip-dac 3’s USB-C audio input is asynchronous, meaning the data rate is regulated solely by the hip-dac 3’s specialized audio clock circuitry for accurate, jitter-free data transfer from the source device. 

Including a separate USB-C port (I mentioned above but just to reiterate: you get two USB-C ports here) for charging maintains a dedicated audio input – ergo, you can still use the hip-dac 3 while charging it.

Why is the Southport UK firm's IEMatch tech a great feature? It reduces background hiss and enhances detail and dynamic range while increasing the useable range of the volume control, that's why. 

You still get the fan-favorite XBass button too. All in all, it's hard to know what else iFi could've been thrown into the hip-dac 3 to make me like it more. 

Features score: 5 / 5

iFi hip-dac 3 review: Sound quality

• Excellent detail and insight
• Extra clarity through the leading edges of notes
• Spacious and refined across the frequencies

If you're considering this DAC, I urge you to subscribe to one of the best music streaming services. Then, simply by plugging the iFi hip-dac 3 into your phone and tapping up the service’s app (I might nudge you to Qobuz or Apple Music – and away from Spotify here) means you'll hear that hi-res file as fully as possible.  

And you're in for a treat at this level. A 24bit/96kHz FLAC file of Peter Gabriel's Sledgehammer has oodles of funk and showcases Gabriel's textured and smiling vocal with surgical skill, which is nonetheless given extra space to shine in an expansive mix. The playlist continues to Solsbury Hill where guitars, strings, shakers and the driving beat are beautifully relayed with admirable timing and cohesion, but never losing focus – that is, never losing the brilliance of Peter Gabriel. 

The age-old debate of refinement, detail and clarity over oomph, zealousness and fun once again comes into play here – an argument I like to call 'hi-fi, or fun?' although that's the issue at its most simplistic and something we could all muse on at length. What you need to know is that the iFi hip-dac 3 falls into the former camp, but I do not mention it to do this DAC down – it'll depend on what you prioritize. I favor the detail and extra insight here. I like that in Stormzy's Angel in the Marble the intentionally heavy bassline is held back just enough to allow me to detect a trilling female vocalist sample in the mix. I like that I hear everything, in its place, at the right time, even if I sacrifice an iota of dynamic oomph. 

Supplementary vocals, gunshots and the fizzing of sparkling liquid being poured are expertly layered and accurately placed throughout Freddie Gibbs' Toe Tag – and despite my observation, this is a rousing performance and one that can go loud even with my multi-driver Campfire Audio IEMs. 

Do I like this DAC for this money? I do. I really do. 

Sound quality score: 5 / 5 

iFi hip-dac 3 review: Design

• Dedicated USB-C charging port provides battery life info
• Short USB-C to USB-C and USB-C to USB-A cables provided, no Lightning adapter
• Exposed volume knob can mean accidental tweaks 

The hip-dac 3 is a well-made little thing – which is hardly surprising considering the quality of its older siblings. Several important but less headline-grabbing changes have been made to this update's innards too, including circuitry enhancements and new metal film capacitors. In addition, the DAC section features an upgraded version of iFi’s GMT (Global Master Timing) circuitry, including a new crystal oscillator to further reduce phase noise, all contributing to its purer, crisper sound.

Other than these changes, the hip-dac 3 retains all the features that made the hip-dac 2 a winning portable USB DAC/headphone amp and one I still love. 

The hip-dac 3's sleek, robust aluminum enclosure measures just 10.2 x 7x 1.4cm so it'll slip easily into a pocket or bag – but do accept that it'll probably have your colleagues thinking you're not averse to a wee dram at your desk. 

According to iFi, the hip-dac 3’s battery will extend to 10 hours of playing time, but this will depend on your listening volume level and how demanding your headphones are; I got just over 8 hours from it, from full to red-flashing-light flat. A lovely touch here is the LED under the USB-C charging port, which changes color depending on battery status: glowing white for more than 75 percent, green for more than 25 percent, red for over 10 percent, and flashing red when you’re in dire need of juice.

Any gripes? A tiny one: I love the exposed power/volume knob, which rotates silently and like a warm knife through butter, but it is very easy to whack the volume up inadvertently in my pocket – and there's no way to set the volume and hold it there. It's more an observation rather than a complaint, really… especially because its amp stage is capable of offering up to 400mW into a 32-ohm load for compatibility with a wide array of headphones, while the balanced output's 6.3V into 600 ohms basically means even high-impedance options can be used without issue.

In summary, the iFi hip-dac 3 is a thing of beauty and a musical companion I soon never left behind. 

Design score: 5 / 5 

iFi hip-dac 3 review: Usability and setup

• Make sure it's charged. Switch it on
• Plug one end into your smartphone or laptop
• Plug some headphones into the other end
• Consider Power Match, IEMatch and XBass. Enjoy

I charged the hip-dac 3 for around two hours upon receiving it, by plugging a cable into its dedicated USB-C (5V only) charging port. Then, I switched it on by turning its rotary power and volume knob clockwise. The lights come on, the DAC is home. 

Now, connect to a sound source by USB-C – the one on the adjacent to the charging port. Next, go to the top end of the hip-dac 3 and hook up some 4.4mm balanced or 3.5mm unbalanced headphones using the correct port. 

Now, you can play music, noting the LED indicator silently judging your file choices and their resolution. As well as adjusting the volume, you can now deploy the XBass and/or PowerMatch buttons next to the LEDs (the latter increases gain for larger cans, or reduces it for IEMs) and finally, head to the back of the unit to consider IEMatch, selecting 3.5mm or 4.4mm if your listening gear is of the more delicate in-ear variety. 

That's all folks. It's more whistles and bells than you'll get with a dongle DAC and all in all, it's a lovely little proposition for the money. 

Usability and setup score: 5 / 5

iFi hip-dac 3 review: Value

• Affordable considering the features 
• Excellent sound-per-pound value 

Considering the build quality and extra features plus the fact that it's still a fair chunk of aluminum, despite its pocketable dimensions, you're getting a lot of product for the money here. And the sound is as detailed as this money can buy, by quite a margin. 

Of course, iFi can sell you something cheaper still if you'd prefer, see the iFi Uno. Given this cheaper DAC's five-star review, that could put the cat among the pigeons somewhat. The entry-level unit boasts different connectivity options and even 'EQ' filters for different content, including ‘game’, ‘movie’ and ‘music’. For me, the iFi hip-dac 3 outdoes it easily when hooked up to my MacBook Pro, but at more than double the price, so that was to be expected.

Value score: 5 / 5

Should you buy the iFi hip-dac 3?

Buy it if...

Don't buy it if...

iFi hip-dac 3 review: Also consider

How I tested the iFi hip-dac 3

• Used for over two weeks
• Connected to an Apple MacBook Pro and an iPhone 12 Pro smartphone
• Wired to Sennheiser IE600 (with custom Sennheiser ear tips), Campfire Audio Solaris Stellar Horizon and Audeze Euclid IEMs

OK: the more your source of music has to work in order to reach your ears, the less effective it is – I don’t make the rules, it is what it is. Thus, when unplugging headphones as capable as those listed above from the headphone socket of my laptop (or the Lightning port of my iPhone 12 Pro, where an additional adaptor purchase is required) and listening again using the iFi hip-dac 3's simple setup, the differences in quality are night and day – like removing a muffling veil from your music, or liberating a track from a tunnel. 

And I challenged my listening with the Edifier Stax Spirit S3 wireless headphones too – as an aural challenge only loosely related to this review. Even these detailed planar magnetic cans (emphatically some of the best wireless headphones in their category) struggle to match the performance of good wired headphones when the iFi hip-dac 3  is also plugged into my MacBook Pro as a music source. 

• Read more about how we test

First reviewed in December 2023

iFi xDSD Gryphon: Two-minute review

The iFi xDSD Gryphon represents a new area of flexibility for the company. iFi is one of the front-runners where audio products like this are concerned and has been for some time. This xDSD Gryphon wants to widen the operability and relevance of its DAC and headphone amp range by offering wireless, as well as wired, connectivity in a package small and light enough to be considered portable. And it’s only gone and pulled it off. The xDSD Gryphon ain’t cheap, but the way it performs justifies the outlay all day long. 

Huge flexibility where connectivity and digital audio content is concerned, a completely confident and convincing sonic attitude, and a user interface that only just stops short of ‘impenetrable’ are what makes this iFi, the product it is. If you want something that’s capable of doing the audio business whether at home or in the wild, it’s almost a no-brainer.   

‘Almost’ because it’s not without competition from the best portable DACs on the market. A lot of it is from in-house, admittedly – but the xDSD Gryphon is going up against the Chord Electronics Mojo 2, which is a massively capable device in its own right. Hear them both, and then make your mind up. 

iFi xDSD Gryphon review: Price and release date

• Release date: December 2021
• Price: $599 / £599 / AU$899

The iFi xDSD Gryphon went on sale a couple of years ago, and in that time its reputation has grown in line with its asking price. As of the time of writing, it’ll set you back $599 / £599 / AU$899, which puts it up against some very well-regarded alternatives from companies as credible as Astell & Kern, Audiolab and Chord Electronics.

iFi xDSD Gryphon review: Features

• Burr-Brown DAC
• Extensive compatibility
• Wired and wireless connectivity

iFi is not messing around where the feature-set of the xDSD Gryphon is concerned. The serious business is taken care of by a Burr-Brown chipset with enormous headroom and compatibility with a huge number of different digital audio file types. Use the USB-C input and it can handle PCM files up to 32bit/768kHz, DSD512 and DXD768 – and it can fully unpack MQA files too. The digital coaxial input is good up to 24bit/192kHz.   

Regardless of the type or size of the file you’re interested in, though, you have plenty of options as to how to best deliver it to your headphones via its balanced 4.4mm or unbalanced 3.5mm analogue outputs.. Its ‘Xspace’ setting, for instance, strives to give the biggest soundstage possible. ‘XbassII’, I hardly need say, increases low-frequency presence and substance – and can be further assisted by a physical ‘bass and/or presence’ switch on the chassis. Content delivered digitally can also be breathed on by one of three digital filters: ‘standard’, ‘bit-perfect’ and ‘GTO’ (which stands for ‘Gibbs Transient Optimised’). The xDSD Gryphon can also be adjusted to best respond to the sort of headphones you’re using – high-sensitivity in-ear monitors, for example, can sometimes introduce hiss, so there’s an ‘IEmatch’ switch on the bottom of the chassis to help deal with that.

Wireless connectivity is handled by Bluetooth 5.1, and there’s codec compatibility from SBC and AAC to aptX (HD, Adaptive and Low Latency), HWA and LDAC. So you should be able to find something to best suit your needs. All the most significant (and noisiest) circuitry – amplification, Bluetooth and digital-to-analogue conversion – is kept isolated in order to minimise cross-talk and other sonic gremlins. 

Power comes from a battery, of course – it’s a portable device, after all, and anyway it’s a cleaner and more efficient way to drive electrical equipment than noisy, dirty old mains power. The iFi has a 3600mAH lithium-ion battery that’s good for around eight hours before it needs recharging. From ‘flat’ to ‘full’ should take a couple of hours. 

Peripheral features extend to a quite generous selection of high-quality (although admittedly quite short) connecting cables. If your needs aren’t met by USB-C / USB-C, USB-C / Lightning or USB-C / USB-A cables, then what exactly are you attempting to attach?

Features score: 5 / 5

iFi xDSD Gryphon review: Design

• 19 x 75 x 123mm (HxWxD)
• 215g
• Unhelpful user interface

This isn’t the first iFi product with a strong suggestion of the hip flask about it, and I strongly doubt it will be the last. At 19 x 75 x 123mm (HxWxD) its proportions are most definitely hip-flask-y, and it’s halfway between being truly pocket-sized and more suitable for desktop use. 

If you do decide to take it out and about, though, its 215g weight is no kind of burden. A lot of that is down to its aluminium construction – its ridged and contoured design is quite interesting and tactile – and is broken only by the little mirrored strip on the top surface. There’s a crisp, bright white OLED display beneath it, which makes it easy to understand what the xDSD Gryphon is up to.

Getting it to the stage where it’s doing what you want it to is more trouble than it really should be, mind you. iFi has plenty of previous where unintelligible user interfaces are concerned, and the Gryphon is just the latest example of the company’s commitment to end-user confusion.

A push/turn control in the centre of the fascia takes care of volume, power and menu navigation. Nearby there’s a ‘settings’ button - it turns ‘Xspace’ and ‘Xbass II’ on or off if you use quick presses, while a longer press summons the on-screen menu. Here’s where you can select your preferred digital filter, set a maximum volume level and adjust screen brightness. An adjacent button handles input selection and Bluetooth pairing. There are also those balanced 4.4mm and unbalanced 3.5mm headphone outputs on the fascia, as well as five vanishingly small LEDs. One of them is embedded into the push/turn dial, and shines in one of five different colours (to indicate volume level) or flashes (indicating the Gryphon is muted). One reveals whether or not ‘Xbass II” and/or ‘Xspace’ is switched on. One reveals the input that’s in use (and so can shine in one of four different colours), and one reveals the audio format of the digital file currently on board (so shines in one of seven different colours, two of which are so similar as to be indistinguishable). All clear? Of course it bloody isn’t.

Meanwhile, the rear panel features two USB-C sockets (one for charging and one for data input), balanced and unbalanced analogue inputs and a 3.5mm digital coaxial input. There’s also the three-stage switch to select the ‘Xbass II’ tone (‘bass’, ‘presence’ or – hey! – ‘bass and presence’). It’s small, but it’s not as small as the switch on the bottom that controls the ‘IEmatch’ circuitry.

Design score: 3.5 / 5  

iFi xDSD Gryphon review: Sound quality

• Fast, detailed and articulate sound
• Dynamic and precise in equal measure
• Not impressed by inferior headphones

It makes sense to start listening to the iFi xDSD Gryphon in its most ‘pure’ state, which means filters set to ‘min’ and with ‘Xbass II’ and ‘Xspace’ switched off. Heard this way, and with content ranging from a 256kbps MP3 file of Eartheater’s Pure Smile Snake Venom to a DSD64 file of Stevie Wonder’s Pastime Paradise incoming from an Apple MacBook Pro via USB-C, the iFi is an uncomplicated, satisfying and thoroughly entertaining listen.

Its fundamental character is one of energy and speed. It creates proper momentum at the bottom of the frequency range without sacrificing any substance or extension. It powers through bass information with pace and precision, controlling low-frequency information with absolute authority – so the low end stays in its lane, underpinning everything going on above.

It’s similarly confident and accomplished at the opposite end of the scale, too. Treble sounds have brilliance and bite, but there’s no suggestion of edginess or splashiness, even if you’re listening at volume – and the Gryphon is most certainly capable of summoning significant volume. What you get at the top end is enough substance to counteract the shine, and – just as with the rest of the frequency range, impressively high levels of detail retrieval.

In between, the midrange is handled with complete assurance. Vocalists as idiosyncratic as the two mentioned above are given complete expression, their character and attitude and emotional state made absolutely plain. There’s real articulacy to the way the iFi deals with singers of all levels of competence, and as a result they communicate in the most direct and positive fashion. 

The frequency range is properly integrated, and with its settings left well alone the Gryphon enjoys a nicely neutral and unshowy tonal character. It’s adept at creating a sensation of singularity and ‘performance’ to a recording, even if the recording itself isn’t the result of a group of musicians all playing in the same room at the same time. Dynamic range is considerable, so both harmonic variances and big changes in intensity or attack are tracked without apparent effort. And the soundstage it’s able to create inside your headphones is spacious, organised and utterly believable. 

Fiddling with filters and what-have-you can result in small differences around the edges of the DAC’s overall performance, but in truth its fundamental characteristics don’t change all that much. And this is true regardless of which of the wired or wireless inputs you use - although naturally the quality of the wireless source (and its codec compatibility) has an effect on the final sound. Of more concern to the Gryphon, it seems, is the quality of the headphones you attach to it – it can happily drive even uncooperative headphones, but it gets a bit sniffy about less capable pairs and isn’t about to disguise that fact.  

Sound quality score: 5 / 5 

iFi xDSD Gryphon review: Value

• Getting more expensive rather than more affordable
• Performance to back up the asking price…
• …but not so much the appearance

Unlike plenty of rival products, the price of the iFi xDSD Gryphon has gone up, rather than down, in the time it’s been on sale. This suggests that it’s been a roaring success, sure – but it also makes it slightly less compelling than previously. That the sound it makes is worth the money is not up for question, but if you judge as much by appearances as by performance you might end up wondering what all that money has bought you…

Value score: 4 / 5

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iFi xDSD Gryphon review: Also consider

How I tested the iFi xDSD Gryphon

• Tested indoors and out
• Tested with numerous file types and sizes
• Tested with a number of different pairs of headphones

Really, that’s the whole story. I used the iFi xDSD Gryphon as a desktop DAC and headphone amp connected to a laptop, and I used it wirelessly when out and about connected to a smartphone. 

I listened to a huge variety of file types and sizes, I used a number of different headphones, and I listened to lots of different types of music. I investigated its various options where filters and what-have-you are concerned, and I listened to some competing products too.  

• Read more about how we test

First reviewed in November 2023