Overview
The SuperTrax is a super tweeter developed by Fyne Audio, designed to extend an audio system’s frequency response beyond 20 kHz. It can be integrated into various high-fidelity systems and uses a carbon dome paired with a high-frequency crossover that allows fine-tuning of the treble while maintaining a coherent soundstage.
Dome and magnetic system technology
At the heart of the SuperTrax is a 25 mm dome made from TPCD (Thin Polymer Carbon Dome), a composition that combines lightness and rigidity. This thin-layer material allows the dome to vibrate with precision and responsiveness—crucial characteristics for reproducing extreme frequencies without distortion. The magnetic system uses high-performance neodymium, delivering strong motor force while keeping dimensions compact.
This type of construction allows the SuperTrax to handle very small excursion amplitudes in the ultrasonic range, a domain where phase errors and propagation delays become audible and can compromise the system’s overall tonal accuracy.
Frequency response and signal processing
The SuperTrax extends acoustic response from 16 kHz to 60 kHz, pushing significantly beyond the 20 kHz generally considered the upper limit of human hearing. This extension offers several indirect benefits: it reduces the load on the main tweeters by handing off the highest frequencies, and it enhances the overall sense of clarity and openness.
The 3rd-order high-pass filter at 16 kHz benefits from cryogenic treatment of the components. This approach stabilizes dielectric properties and improves signal transparency by reducing atomic-scale micro-movements responsible for subtle sonic degradation. Precise time alignment ensures that the energy reflected by the dome retains the same harmonic structure as the direct signal, avoiding destructive phase interference.
Compatibility and adjustments
The nominal impedance of 8 Ohms and sensitivity compatible with speakers up to 98 dB make the SuperTrax universally compatible with existing hi-fi systems. The recommended amplifier power is capped at 400 W RMS, which suits the majority of quality audio amplifiers.
A level adjustment of ±3 dB relative to the nominal setting allows tailored integration according to the room’s acoustic characteristics and user preferences, avoiding excess or deficiency in the ultrasonic region.
Documentation
Technical specifications
Acoustic performance
- Frequency response: 16 kHz – 60 kHz (-6 dB)
- Nominal impedance: 8 Ω
- Recommended amplifier power: up to 400 W RMS
- Compatible sensitivity: up to 98 dB (2.83 V / 1 m)
- Level adjustment: ± 3 dB
- Dispersion: 360° omnidirectional
Dimensions
- Height × Width × Depth: 86 × 140 × 257 mm
- Grille, terminal and base included
- Spikes excluded
Transducer technology
- 25 mm TPCD carbon dome
- Ultra-thin multilayer diaphragm
- Fast response
- Exceptional precision
- High-efficiency neodymium magnet motor
- Optimal control
Filtering and signal processing
- 3rd-order high-pass filter at 16 kHz
- Components treated by cryogenic processing
- Very high-purity signal transmission
- Excellent phase coherence
- Design optimized for time alignment
- Preservation of harmonic integrity between direct sound and reflected energy
Compatibility
- Compatible with most high-fidelity loudspeakers
- Optimal synergy with Fyne Audio speakers equipped with IsoFlare technology
Available finishes
- Vintage
- Natural walnut veneer
- Matching the Vintage series
- High Gloss Black
- Piano black lacquer finish
- Integrated adjustable feet
Box contents
- 1 × SuperTrax
- 12 × self-adhesive protective pads
- 2 × speaker cables (1.5 m)
- 4 × rear spacing feet*
- 4 × knurled locking nuts*
- User manual
- Quality certificate
- Welcome letter
*Note: the rear spacing feet and knurled locking nuts are not included with the Vintage model (available as options)
Installation and positioning
- General rule
- Position the SuperTrax slightly behind the front baffle of the loudspeaker
- Align the acoustic center of the tweeter with that of the main driver
- IsoFlare speakers (point source)
- Follow the positioning chart recommendations provided by Fyne Audio
- Speakers with separate drivers
- Position the SuperTrax towards the front
- Optimizes dispersion, transparency and high-frequency definition
General information
The SuperTrax is an omnidirectional super-tweeter designed to extend your audio system’s frequency response beyond the conventional audible spectrum. Its 360° dispersion enriches the soundstage by bringing more air, transparency and realism to music reproduction.
Frequently Asked Questions
What’s the point of a super tweeter if the ear can’t hear above 20 kHz?
A super tweeter eases the spectral load on the main tweeter and improves the overall perception of clarity and air. Extreme frequencies, even if only partially perceptible or subliminal, influence timbral quality and transparency.
Does the SuperTrax work with any speaker?
Yes, its universal design makes it compatible with all high-fidelity systems with standard impedance. Its level adjustment allows adaptation to different speaker sensitivities, although optimal use is observed with Fyne Audio products equipped with IsoFlare.
How should I position the SuperTrax in my room?
Place it slightly behind the front baffle of your main speaker to align the tweeter’s acoustic center. With IsoFlare systems, consult the manufacturer’s reference chart. For speakers with separate drivers, forward placement maximizes dispersion.
Do I need a specific amplifier to drive it?
No, any amplifier capable of delivering up to 400 W RMS is suitable. The SuperTrax integrates easily into existing systems without major electrical installation changes.
Does the cryogenic treatment of the crossover really make an audible difference?
Yes, this treatment reduces internal micro-movements in the components that can introduce subtle distortions. The effect is best assessed over extended listening sessions, where tonal coherence and the absence of listening fatigue become evident.
Can two SuperTrax units be used in a stereo setup?
Yes, using a pair in stereo deepens the soundstage and reinforces spectral extension across the entire acoustic field, especially in larger rooms.
- Eco-contribution included in the sale price.




