It's not every day that Bowers & Wilkins refreshes its most storied and sought-after speaker lineup, and it's also not every day that you get to hear it in the best possible setting. When Bowers announced the 800 Series Diamond D5, we knew that it was likely to sound fairly phenomenal.
I got the chance to verify that, though, when I visited the British audio brand's secluded R&D base near Horsham in early July – a visit that very (very) few audio journalists have ever been treated to before. I've already written this week about the sheer engineering scale of the listening room that I had my session in, but that piece might have left readers wondering about the actual sound of these new high-end speakers.
If you're going to spend £250,000 on building a listening room suspended within an existing room, it follows that you're not going to fill it with subpar components. When I totted up the audio equipment backing up the speakers I listened to (and there were many speakers), online retail links suggested that it was comfortably another £250,000 worth of kit.
That was comprised of a pair of Gryphon Apex mono power amps (just under £200,000), a Gryphon Commander preamp (another £65,000) and a lovely Denon DP-S1 CD transport (a totally reasonable £3,000 used).
Added to this were, of course, the actual new speakers, in a carefully calibrated ladder. Over the course of a couple of hours, I got to go through a host of comparisons. First, Bowers would give me some samples from the old version of the 800 series – so, the 805 D4, for instance. Then they'd swap it out for the newer version: the 805 D5.
After that we'd go back to the D4 range for the next step up: the 804 D4. Then to the newer equivalent, the 804 D5, and so on, until by the end we finished with the top-of-the-line 801 D5, the latest and greatest. At a cool £43,000 for a pair, they bring the total setup to eye-watering levels, but it's easy to throw stones until you step into the glass house and actually listen to them.
A new world of sound
I heard the same three tracks through ten different sets of speakers, each one picked to showcase a different characteristic. There was Phoebe Bridgers' DVD Menu into Garden Song, for its weird spatial elements and underrated bass; then Agnes Obel's The Curse, even more precise and pinpoint in its arrangement; and finally, Harry Belafonte's A Fool For You, the perfect way to check the warmth and tonality, all acoustic and live.
I'll be honest – even the very first speaker, the last-gen 805 D4s, had me immediately remembering how jealous I am of those who can afford this sort of setup or anything like it. The amount of detail, and the degree of separation, was just astonishing – and at that point I'd have told you I doubted that spending five times the money for the 801 D5s could possibly be sensible.
That's still a complicated topic, but as we stepped up through that ladder of sound, it was fascinating to be able to pick out differences and hear near-perfect sound get a little better. The biggest changes, I'd say, came in Belafonte's song, where the amount of warmth really did bump up on the newer speakers, the richness of his curiously-octaved voice getting all the more present in the room.
As you'll see in the images above, changing from one speaker to the next was no small job, especially once the bigger ones were on the agenda, and that weight served as a decent reminder that these are super-premium products for those who really do want professional-level sound at home.
A subtle evolution
It's hard for me to visualise ever having a space that could actually house them, let alone being able to crank them up to the volumes I enjoyed at Bowers' HQ – my neighbours would rightly have thoughts on that. Still, seeing the new speakers up close was a great way to appreciate some of the design changes.
Side by side, the D4 and D5 series are obviously from a shared template, but the tweaks that have been made are noticeable. That iconic turbine head always had a separate tweeter atop it, but the separation is even more intense now – it practically wobbles if you touch it. The grille on that tweeter's front is also redesigned for more airflow, and is quite beautiful in its lattice-work.
Behind the scenes, new designs for the acoustic chamber are tweaked in ways that you'd have to see a breakdown to fully appreciate, but help to give that extra warmth that I've spotlit. Bowers admitted that it now thinks it might have gone a little too analytical last time out (though some will have appreciated that), so this is a clear course-correction.
Part of what's so mad about high-end audio, though, is that you do quite quickly get into the realms of taste. Bowers & Wilkins is far from the only brand making very expensive speakers that sound terrific, after all, but its sound signature is clearly popular in mixing studios and with artists.
Having now had the opportunity to luxuriate in it myself, I can see why – if I had £50,000 to lob on a couple of floor-standing speakers, I'd have them high up my list moving forward. That said, I'd be curious to hear them without the enormous additional setup behind them, or at least with a more deliberately realistic one. At this grade of audiophilia, part of the fun is in trying to work out which components are having an impact on which elements of your sound, after all.
The cadence of Bowers & Wilkins' speaker updates means that the D5 range should now set its standard for a good few years, and it'll be fascinating to see how its arrival is greeted once people get their hands on them for more long-term testing. Having had my own session, I'll be grabbing any further opportunities to listen again.
