Fyne Audio SuperTrax

The SuperTrax is Fyne Audio's 360-degree super tweeter — a single-unit addition to any loudspeaker system that extends high-frequency reproduction several octaves above the usual limits of audibility. It is designed to be placed on top of or adjacent to an existing loudspeaker pair and connects in parallel via a simple high-pass filter, requiring no modification to the existing system. The patented 360-degree radiation geometry disperses ultra-high-frequency energy evenly around the room in all directions — a fundamentally different approach to conventional forward-firing super tweeters, and one that aligns closely with the way acoustic instruments radiate sound in a real performance space.

The design draws on Fyne Audio's Vintage series aesthetic — machined, purposeful, and at home alongside speakers from any manufacturer in the range that the SuperTrax is intended to complement.

What Does a Super Tweeter Do?

A super tweeter extends the high-frequency bandwidth of a loudspeaker system beyond what the main tweeter can reproduce. This extension — several octaves above the nominal 20kHz limit of human hearing — contributes to tonal accuracy, a more pronounced transient response, and an enhanced sense of air and space around instruments and voices. These qualities are perceptible even at frequencies the ear cannot consciously resolve, which is why the effect of adding a super tweeter is often described in terms of the lowest frequencies sounding more natural and better-defined, not just the highest.

The underlying mechanism is phase accuracy. Just as adding a subwoofer to a system improves the phase coherence of the bass frequencies — not merely their extension — a super tweeter at the high-frequency end preserves the harmonic structure of music above the main tweeter's operating range. It is this extended phase accuracy that accounts for the perceived improvement across the full frequency range, not just at the frequency extremes.

360-Degree Radiation

The SuperTrax uses a patented 360-degree radiation design. Where a conventional super tweeter fires forward like a conventional tweeter, the SuperTrax disperses ultra-high-frequency energy equally in all directions. This matches the natural radiation behaviour of acoustic instruments and voices, and it integrates with the main loudspeaker's soundstage in a more seamless and convincing way than a forward-firing addition to the system.

Compatibility

The SuperTrax is designed to work with any passive loudspeaker system. Connection is via a simple parallel arrangement with a high-pass filter that sets the operating point — no modification to the existing system is required. It pairs naturally with any speaker in the Fyne Audio range, including the F704SP, F703SP, and F1-10s, as well as loudspeakers from other manufacturers. It is equally at home augmenting a Fyne Audio Vintage Five or a Fyne Audio F1-8s.

Who Is It For?

The SuperTrax suits a listener whose existing system is already performing well and who wants to explore what ultra-high-frequency extension adds — in particular, those who listen to a lot of acoustic music, classical recordings, or high-resolution digital files where the upper harmonic content of instruments is well-preserved. It is also a natural consideration for anyone using a Fyne Audio speaker whose main tweeter rolls off below 30kHz, and who has heard the difference a well-implemented super tweeter makes to the perceived naturalness of the sound.

Those building a new system around Fyne Audio speakers should consider the SuperTrax at the planning stage rather than as an afterthought — integration is simpler and the results are more coherent when the super tweeter is part of the original system design.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. The SuperTrax is available to demonstrate at our Norwich showroom — ideally in the context of a system you already know, so the difference is immediately apparent. Dave and Chris can advise on placement, connection, and which systems in your price range benefit most from the addition.

Contact us at [email protected], call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.