Wharfedale Diamond 12.1i: One-minute review
The Wharfedale Diamond 12i standmount speakers are the latest in the line of 'Diamond' speakers that has, one way and another, been around since 1982. The most recent (and wildly acclaimed) series, the Diamond 12, launched back in 2020 – so it’s about time the Diamond 12i range made an appearance.
(Obviously not everyone loves a ‘13’ name, and Wharfedale is open enough to acknowledge that this new range of loudspeakers is not a ground-up redesign of the range it’s replacing - so ‘12i’ it is.)
The Wharfedale Diamond 12.1i tested here is a two-way bookshelf (or, more accurately, standmount – I'll come back to this) design that sells for the same £249 that the outgoing Diamond 12.1 launched at – which does, of course, mean it’s less expensive in real terms. It's not a situation that occurs all that often with the sort of hi-fi equipment I deal with. In the US, the new model costs $499, and in Australia it's AU$699.
But if you think Wharfedale has cut corners to get the Diamond 12.1i to market at this very aggressive price, think again. Build quality is more than acceptable. The trio of available finishes look (and even feel) good. Best of all, though, is the way the Diamond 12.1i sound. They’re perfectly OK at lower volumes – but let them loose even just a little and they really come to life, combining insight, balanced, dynamic potency and simple entertainment to periodically thrilling effect.
The specification (with highlights including a 25mm woven polyester tweeter, a 130mm mid/bass driver made from mica-enhanced polypropylene, a carefully tuned rear-facing bass reflex port, and some very judicious cabinet bracing), results in a speaker that’s easy to drive and has a frequency response of 65Hz - 20kHz.
The front baffle of each Wharfedale features the tweeter positioned behind a minimal waveguide – the idea is to expose the driver as much as possible in an effort to achieve wide dispersion. Below here is the 130mm ‘Klarity’ mid/bass driver, backed by a substantial magnet with an aluminum compensation ring, with a voice coil that’s wound on a glass-fibre/epoxy resin bobbin.
The crossover between the two drivers is positioned at a sensible 2.6kHz, and is performed by a Linkwitz-Riley network featuring air-core inductors – it has been specified with minimal phase-shift and smooth integration in mind.
Wharfedale’s description of the Diamond 12.1i as a ‘bookshelf’ speaker is, I think, just a little bit naughty. Yes, you may have a bookshelf big enough to accommodate the cabinet’s 250mm depth (which rises to 280mm once you include the speaker binding posts, and more if your speaker cable is terminated with plugs) – but when you factor in the breathing space the rear-facing reflex port needs, even the deepest shelf is unlikely offer the breathing space the Wharfedale require. Let’s just go with ‘standmount’ and leave it at that, shall we?
At 312 x 180 x 250(ish)mm (HxWxD) the Diamond 12.1i are tidily proportioned for standmounts, and the standard of build and finish is more than good enough to justify the asking price. Both of the available colors (‘deep’ black and ‘stone’ grey) are in a kind of semi-matt finish that looks nice (to me, at least), isn’t all that reflective and is actually slightly soft to the touch. Your other option is ‘classic’ walnut, and I will have to reserve judgment on its qualities as I have yet to see (or feel) it.
Each of the finishes is supplied with magnetically attached, full-length grilles finished in black fabric – it certainly makes for a clean look, but I feel it’s a shame to hide the mildly shiny driver surrounds and clean overall appearance. You may feel differently.
On the inside, the Diamond 12.1i feature minimal and carefully targeted ‘spot’ bracing designed to keep both resonance and resonance transfer to a minimum. In conjunction with cabinet walls of varying thickness, plus the resonant properties of the glue holding everything together taken into account, this is a slightly more sophisticated piece of engineering and design than the asking price might lead you to believe.
Some loudspeakers don’t alter their character no matter the volume level you’re listening at. The Wharfedale Diamond 12.1.i don’t undergo drastic volume-related changes, I must emphasize – but at very modest volume levels they can sound just a little matter-of-fact. All you need to do is nudge the level north just a little, though, and these speakers come bounding to life – and then they reveal themselves to be one of the very best budget options around.
Get a Tidal-derived stream of Zaho de Sagazan’s version of Modern Love playing as a 24bit/44.1kHz FLAC file, for instance, and you’ll find out exactly what’s what. The Diamond 12.1i are a direct and spirited listen, with an uncomplicatedly upfront sonic signature and an almost palpable enthusiasm for the recording.
Low frequencies are respectably deep, and nicely controlled where attack and decay is concerned, with knock-on effects to the rhythmic expression and momentum that are entirely positive.
Detail levels are impressive, too, so there’s plenty of variation where tone and texture are concerned to go along with the straight-ahead punch. Transition into the midrange is clean, and once there the Wharfedale demonstrate a similarly insightful and animated attitude – the details of attitude and character in the voice are just as readily available as those regarding phrasing and technique.
At the top of the frequency range, the Diamond 12.1i have quite sensibly decided that discretion is the better part of valor, staying relatively constrained in the mix – but although the highest rebel sounds are dialed down just a little, there’s still no shortage of bite or the overall enthusiasm for attack.
With the discretion at the very top of the frequency range borne in mind, the frequency response here is nicely even and even-handed – and while the overall tonality has a nice little suggestion of heat to it, it’s not even close to becoming overcooked.
The attention to detail the speakers pay extends to the most transient or fleeting harmonic variation, and there’s a respectable amount of dynamic headroom available for when the tune shifts through the ‘volume and intensity’ gears.
Soundstaging is convincing, and the Diamond 12i are able to escape the confines of their cabinets, just a little, in every direction. The layout of the stage is plain, and while the Diamond 12.1i manage to give every participant on it just a little breathing space they’re capable of offering a sense of unity and togetherness at the same time.
The Wharfedale seem in no way demanding of their partnering equipment, either – they don’t get flustered by sitting at the end of a disproportionately expensive system, and they don’t seem to mind being driven by some standard all-in-one electronics costing less than they do. There are qualitative differences, of course – but broadly speaking the Diamond 12.1i are easy-going and adaptable.
Bear in mind that the Diamond 12.1i, just like every other pair of passive loudspeakers, needs a degree of ‘running in’ before they sound how they are intended to sound – certainly you should ensure they have quite a few hours on the clock before you judge them.
The entry-level in passive loudspeakers has enjoyed a very successful decade so far – and this is in no small part thanks to Wharfedale’s efforts. Yes, the company has inspired some very credible rivals to take this area of the market properly seriously (I’m thinking particularly of the excellent Dali Kupid), but there’s just no getting around the fact the Diamond 12.1i offer prodigious value for money in every respect.
They look and feel more expensive than they are, and once they’re properly positioned they sound it too. Unless you’re been suckered in by the promise of an actually bookshelf-friendly design, I cannot think of a single meaningful downside to Wharfedale Diamond 12.1i ownership.
Wharfedale Diamond 12.1i review: Price & release date
- Launched in December 2025
- Priced at $499 / £249 / AU$699
The new Wharfedale Diamond 12i range of entry-level loudspeakers launched in December of 2025. This 12.1i model is, at £249 in the UK, the second-least-expensive of the five-strong newest Diamond range of stereo speakers. In the United States it sells for $499, while in Australia the going rate is AU$699.
This compares very favorably to options from the likes of Dali, Monitor Audio or Q Acoustics.
Should I buy the Wharfedale Diamond 12.1i?
Attributes | Notes | Score |
|---|---|---|
Features | Obviously very limited, being passive speakers, but great driver setup. | 5 / 5 |
Sound quality | Punchy and rapid low-frequency response meets detail and positivity across the range – but best if the volume isn't too low. | 5 / 5 |
Design | Lovely finishes and build quality – but just know they're bigger than you might expect from 'bookshelf' speakers. | 5 / 5 |
Usability and setup | Ideal passive speakers – plug in and go! And they're not fussy about what drives them. | 5 / 5 |
Value | As good as speakers at this price get. | 5 / 5 |
Buy them if…
You’re setting out on your ‘authentic hifi’ journey
Once you hear what a modestly priced pair of speakers designed and built by a specialist can do, you’ll be locked in for life.View Deal
You’re after good looks as well as good sound
The Diamond 12.1i look and feel good, especially in the ‘stone’ gray of my review sample.View Deal
You have a half-decent micro-system that deserves a new lease on life
You might think the speakers that came with your nice little Denon all-in-one are good enough. Wharfedale begs to differ…View Deal
Don't buy them if…
Your bookshelf is only the size of a bookshelf
These are slightly larger cabinets than the description ‘bookshelf’ rather optimistically implies.View Deal
You want to fill an especially large room with sound
There is, of course, a limit to what an affordable pair of speakers fitted with fairly small drivers can do in terms of outright scale.View Deal
You prefer to listen at quite low volumes
The Diamond 12.1i are perfectly OK at low levels, but really come to life if you wind the volume up just a little.View Deal
Wharfedale Diamond 12.1i review: Also consider
Dali Kupid
The Dali Kupid seem to offer a little less (in physical terms) than the Diamond 12.1i while costing a little more – but they’re an energetic, punchy and entertaining listen and can actually comfortably fit on a bookshelf. They’re not quite as easy to drive as the Wharfedale, though. Here's our full Dali Kupid review.View Deal
Q Acoustics 3020c
These are not much more expensive than the Wharfedale these days, and they’re a great-sounding pair of speakers for the money. The cabinet is notably deep, though, so they’re even less of a bookshelf proposition than the Diamond 12.1i. Here's our full Q Acoustics 3020c review.View Deal
How I tested the Wharfedale Diamond 12.1i
I positioned the speakers on a pair of Custom Design speaker stands in my home and usual speaker testing room, and connected them to a Naim Uniti Star and also an A&R Cambridge A60 for amplification.
Sources of music were the Naim (as a network streamer), a Rega Apollo CD player and a Technics SL-100G (with a Goldring 1042 cartridge and pre-amplified by a Chord Huei) as a turntable. So I was able to listen to music from lots of different formats, and of various styles and genres.
- Read TechRadar's reviews guarantee
- First reviewed: February 2026
