Fyne Audio revolutionises your perception of high-fidelity sound with our patented 360-degree super tweeter, crafted to expose every musical detail.

Improve your existing system

The SuperTrax works at its optimum with our IsoFlare point source driver, however any loudspeaker will see improvements in sound.

360 degree experience

By using our patented time aligned omnidirectional super tweeter, reflected energy in the room has the same harmonic structure as the direct on axis energy, thus giving advantages in perceived air and space

Reach 60kHz with our TPCD dome

Aluminium, titanium and magnesium range in order from around 20kHz to 32kHz and whereas considered out of the audio band, this can be perceived as harshness. Our Unique Thin Ply Carbon Diaphragm (TPCD) material allows multiple break up points and higher frequencies to be reached for a more natural sound.


The essence of music lies not only in the depth of its bass, the texture and details of its mids, but also in the clarity of its highs. Tastefully crafted to echo Vintage Series’ design influences, SuperTrax transcends the traditional audio experience, extending the frequency range of your loudspeakers several octaves above the usual limit of human hearing. This extension enriches your music with increased tonal accuracy, a more pronounced transient response, and a sense of air and space, enhancing even the lowest frequencies. We are used to the concept of adding a subwoofer which not only adds bass but improves the phase accuracy of the music. Adding a super tweeter does the same at high frequencies, and it’s the extended phase accuracy which preserves the music’s harmonic structure, that’s a big part of what we “feel”.

SuperTrax on Vintage Fifteen


Maximum Recommended amplifier power (Watt RMS)

Sensitivity (2.83 Volt @ 1m)
Suitable for loudspeakers up to 98dB typically

Nominal impedance
8 Ohm

Frequency response (-6dB typical in room)
16kHz -60kHz

Drive unit complement
25mm (1”) Thin Ply Carbon Diaphragm (TPCD)
with neodymium magnet system

Crossover type
3rd order high pass 16kHz, Cryogenically treated

System adjustments
+/- 3dB from nominal setting

Dimensions – HxWxD
86 x 140 x 257mm (3.4 x 5.5 x 10.1”)

360 Degree Imaging

SuperTrax Sound Waves

We know the higher the frequency the more likely beaming like a torch can occur. To overcome this we moved beyond the conventional forward firing super tweeter. The SuperTrax’s omnidirectional design radiates energy through 360 degrees, enveloping you in a sphere of coherent sound. This is made possible by our patented SuperTrax tractrix radiator with its revolutionary approach to sound dispersion.

No Frequency Beaming

Forward firing devices will have a very narrow dispersion at these ultrasonic frequencies, which means they will beam like a torch. The 360 degree design of the SuperTrax means there will be no beaming but instead an immersive sound stage.

Even Response At Any Angle

In a typical room, a high proportion of sound perceived by the human ear is reflection generated by the off axis response of the speaker. Therefore any enhancement with a super tweeter is best served by an omnidirectional device with even response at any angle, placed at the acoustic centre of the main driver.

PatentedTractrix profile

Known to maintain a 90 degree angle at each intersection of the expanding wavefront. The plane acoustic wavefront generated by the dome is translated into a spherical wavefront into the room, where it meets the diffuser.

Abilityto timeAlign

The addition of a SuperTrax, when time aligned to the acoustic centre of the IsoFlare, will reduce the high frequency phase error by moving the low pass roll off point much higher.

Immersive 360 Sound ○ Improved Detail Across the Entire Audio Band ○ Adding Sense of Air and Space ○

Revealing Harmonic Detail

Every loudspeaker or audio device exhibits a low pass filter function and consequently acts as a frequency independent time delay in the pass band, otherwise known as a linear phase response.

To reduce the low frequency phase error, we would add a subwoofer, which does more than just add bass. It is this reduction of phase error that is one of the main benefits of a well integrated subwoofer. Music with no apparent bass content will sound more natural when this error is removed.

Likewise, the addition of a super tweeter, time aligned to the acoustic centre of the IsoFlare, will reduce the high frequency phase error by moving the low pass roll off point much higher. So even if we ignore for now the perception of sound above 20kHz, the addition of a super tweeter will better preserve the harmonic relationship between instruments and is apparent down to low frequencies. This is a very important fact which is not intuitive.

Energy of cymbals

A Spectrum Beyond Hearing

Research reveals that musical instruments emit energy up to 50kHz and beyond frequencies once thought to be beyond our perception. Yet, research has shown that these ultrasonic tones do influence our auditory experience, even if they’re not directly audible. The SuperTrax captures this spectrum, ensuring you’re not just listening to music-you’re perceiving it.

The Revolution of TPCD

At the heart of the SuperTrax lies the Thin Ply Carbon Diaphragm, a new type of dome material, allowing frequencies to reach up to 60kHz, before introducing a controlled break-up of sound. This enables a linear and extended frequency response without distortion, thus delivering sound with high accuracy as the artist intended.

SuperTrax Rear Detail

Grounding Terminal

Includes an extra earth terminal that grounds the driver chassis to prevent radio frequency interference effects from masking fine detail.

HF Adjustment

HF output controls are integrated on top of the cabinet, offering user adjustment of high frequency energy giving you customisation to your preferred sound.

+ or - 3dB
SuperTrax HF Adjustment


Musical instruments produce energy well above the generally considered limit of human hearing. Research has shown that we are capable of responding to this energy, justifying the addition of a super tweeter where wide bandwidth sources are used.

For a super tweeter to work correctly in the time domain, it has to be positioned backwards on the cabinet, to match the acoustic source of the main driver. Positioning the super tweeter at the front of the cabinet, as is often seen, is not ideal, although it could be argued that with a discrete non point source loudspeaker this is of even less consequence.

There is no phase errors in the audio pass band of a Red book CD due to the nature of the digital filtering used. However the addition of a SuperTrax preserves this phase information even though there is no ultra sonic information present in the source.

The SuperTrax Experience

With the SuperTrax, every genre, from the clarity of high-resolution digital files to the warmth of vinyl, and even red book standard CD is elevated. This is more than sound; it’s an immersive experience that honours the legacy music in its style while leading the way into its future.

Where to buy

Download the SuperTrax Whitepaper

Want to find out even more about how SuperTrax and supertweeters work? Enter your email below and we will send you research that our own Dr Mills has done on this very subject!

Sorry that didn't seem to work. Please try again.
Thanks, nearly there! Please check your inbox and verify you want to be contacted.

We use Brevo as our marketing platform. By submitting this form you agree that the personal data you provided will be transferred to Brevo for processing in accordance with Brevo's Privacy Policy.