Scotland’s Fyne Audio just unleashed the F704SP, the new heavyweight champ of its F700SP line. And if you think that name’s a mouthful, wait till you see the speaker. Hand-built in the UK and clearly hitting the haggis hard, the F704SP takes the brute force and chest-thumping dynamics of the original F704 and injects it with some sonic steroids borrowed from the no-expense-spared F1 Series. It’s Fyne’s latest shot at proving that high-end British hi-fi can still show up, throw down, and look damn sharp doing it—even if it sounds like it should come with a trainspotting collector’s badge and a dram of something peaty.
Fyne Audio F704SP: Dual 12-Inch Drivers and IsoFlare Precision with a Glasgow-Sized Wallop
Designed to bring the full-body rush of live music into your space—minus the sticky floors and tinnitus—the F704SP is armed with some of Fyne Audio’s most advanced tech to date. At its core is a 300mm IsoFlare point source driver, lifted straight from the design philosophy behind the flagship F1-12S.
This driver pairs a 12-inch multi-fibre bass/mid cone with a 3-inch titanium dome compression tweeter, both locked into a single axis for tight phase coherence and pinpoint imaging.
Powering this setup is a neodymium magnet on the tweeter—small but unrelenting—and a hefty ferrite motor on the main cone that gives the low end serious control and muscle. The result? High frequencies that cut clean without harshness, and bass that hits like a pub brawl on Sauchiehall Street—fast, deep, and never sloppy.
To seal the deal, Fyne throws in a second 12-inch bass driver with the same motor structure and FyneFlute roll surround, pushing the low end even further without sacrificing speed or detail. With a sensitivity rating of 96dB, this isn’t a speaker that needs coaxing. It’s ready to go full Braveheart on your vinyl collection.
F704SP Cabinet: Scottish Engineering Wrapped in Curves That Would Make Rennie Mackintosh Blush
The F704SP isn’t just a loudspeaker—it’s a monolithic slab of acoustic weaponry disguised as modern art. Crafted from high-density European birch plywood (because MDF is for the weak), the cabinet is a masterclass in brute elegance. With curves smoother than a bottle of 21-year-old GlenDronach and internal bracing stout enough to survive a Glaswegian winter, this enclosure laughs in the face of resonance.
Fyne’s tricked-out twin cavity loading system, originally cooked up for the F1-10, makes a triumphant return here—complete with a downward-firing port and the BassTrax™ Tractrix diffuser system.
That last bit’s not just marketing fluff. It means this speaker throws bass in a full 360-degree wavefront, smoothing out in-room response so you don’t have to play musical chairs with your speaker placement. Put it where it fits, and let the tech do the rest.
And just when you think they’re done, Fyne pulls a full Highland flex: the F704SP borrows the entire plinth and BassTrax assembly straight from the top-tier F1-12S. We’re talking precision-machined aluminium plates, an advanced Tractrix cone, and those glorious M12 threaded metal feet with top-mounted height adjustment—because bending over is for peasants.
This plinth doesn’t just support the cabinet—it acts like an acoustic sniper, directing LF energy with deadly precision. Weighing in at a spine-chilling 71.5kg per speaker, the F704SP isn’t going anywhere. Plant it, crank it, and let the low end roll like thunder over the Highlands.
F704SP Electronics: Cryo Crossovers, Military Parts, and Bond-Level Precision
The F704SP doesn’t just shout louder—it thinks harder, thanks to a crossover network that’s had more tweaks than a Bond Aston Martin. Redesigned from the ground up using advanced computer modelling and an unhealthy number of listening sessions (probably involving a few drams), the new crossover is loaded with high-end parts that wouldn’t look out of place in a nuclear submarine.
We’re talking ClarityCap polypropylene capacitors and thick-film Vishay resistors straight out of a military spec sheet, all working together to eliminate compression artifacts and tease out levels of detail sharper than a dry Connery one-liner.
But Fyne didn’t stop there. No, they dragged the entire crossover assembly through their in-house cryogenic treatment process at the new DCT facility in central Scotland—because freezing your components down to near absolute zero somehow makes them sound more alive. It’s a bit like sending the circuit on a Highland vision quest—what comes back is stress-free, tuned, and ready to serve.
Signal integrity inside the box is handled by Neotech PC-OCC wiring—pure copper, zero compromise, no nonsense. On the outside, you’ll find gold-plated WBT Nextgen terminals that connect with the kind of grip and polish you’d expect from something wearing a tux. In short, the F704SP’s guts are as refined as they are relentless—engineered not just to sound good, but to sound unmistakably Fyne.
Specifications
| System Type | 2 ½ way, downwards firing port, with BassTrax™ Tractrix diffuser, twin cavity loading system |
| Recommended amplifier power (Watt RMS) | 30 – 300 |
| Continuous power handling (Watt RMS) | 150 |
| Sensitivity (2.83 Volt @ 1m) | 96dB |
| Nominal impedance | 8 Ohm |
| Frequency response (-6dB typical in room) | 22Hz – 26kHz |
| Drive unit complement | 1 x 300mm IsoFlare, point source driver, multi-fibre bass / midrange cone, FyneFlute surround with 75mm titanium dome compression tweeter, neodymium magnet system. 1 x 300mm multi-fibre bass FyneFlute surround. |
| Crossover frequency | 250Hz & 850Hz |
| Crossover type | Bi-wired passive low loss, 2nd order low pass, 1st order high pass. Cryogenically treated |
| Dimensions – HxWxD | 1353 x 579 x 568mm (53.3 x 22.8 x 22.4″) |
| Net Weight – Each | 71.5 kg (157.6 lbs) |
| Finishes | Natural Walnut / Piano Gloss Walnut / Piano Gloss Black / Piano Gloss White |
| Cabinet Construction | Pressed high density birch ply with extensive internal bracing. |
The Bottom Line
At $25,999 per pair, the F704SP isn’t trying to be humble—it’s here to kick doors in. This is Fyne Audio’s flagship contemporary loudspeaker, and it’s not playing catch-up to the competition. It’s challenging them outright—with twin 12-inch drivers, a cryogenically-treated crossover worthy of a lab coat, and a frequency response that digs deeper than your uncle’s conspiracy theories (22Hz to 26kHz, if you’re counting).
Peak power handling? 600 watts. Sensitivity? 96dB. Weight? A hernia-inducing 71.5kg per speaker. These specs don’t whisper high-end—they bellow it from the Highlands.
Fyne’s also dialed up the finish options. Gloss black, gloss white, gloss walnut—all present and polished—but the real showstopper is the new real wood walnut veneer, hand-finished to a satin sheen.
Built in their shiny new Scottish facility, this loudspeaker isn’t just a product—it’s a declaration. Every component, from the Neotech wiring to the upgraded BassTrax plinth, is a flex. This is the sum total of decades of point-source obsession and precision manufacturing, brought to life with all the pride of a whisky distillery that’s just perfected a new single malt.
The F704SP isn’t just the best of Fyne—it’s a Scottish-built middle finger to anyone who thinks British hi-fi can’t still lead the charge.
For more information: fyneaudio.com
Where to buy: $25,999 at Upscale Audio
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Anton
May 17, 2025 at 11:55 am
Just an observation:
High end audio seems to have abandoned the middle and gone to either entry-level or ultra high end leaving many of us in the lurch.
Dumb.
Ian White
May 17, 2025 at 12:43 pm
Anton,
Sadly, you’re not incorrect. The reality is that there will always be a market for cost-no-object products and good for the people who have the means to afford it. It’s really not our business what people decide to buy.
The industry believes that young people will graduate from entry-level to the ultra level and that’s not a good strategy. Many of these people will achieve rather excellent sound quality for systems under-$2,000 and that will be the end of the road for them.
Brands like Q Acoustics, PSB, ELAC, Wharfedale, and KEF have the right idea by offering speakers in the $1,000 to $2,000 range that deliver excellent sound quality. I use many of them at home. But that still requires an amplifier, network amplifier, turntable, CD player, phono stage, cables…suddenly we’re at $10,000.
After all of these years and having listened to hundreds of loudspeakers and amplifiers, I’m good with owning 4-5 “affordable” systems rather than one $50,000 system. I like hearing the different perspective that each brand offers.
IW