Fyne Audio F501S Floorstanding Loudspeaker (pair)

A 2.5-way with 6" woofer, 6" bass-mid driver, 25 mm magnesium dome tweeter, down-firing bass port, and 90 dB sensitivity

The F501S floorstander features a 6” IsoFlare point source driver with a 25 mm magnesium dome tweeter for exceptional clarity and precise imaging. Complemented by a dedicated 6" bass driver, it delivers rich, dynamic sound with excellent transient response.

The addition of an integrated patented BassTrax Tractrix Diffuser System ensures uniform 360 degree bass dispersion, minimising room placement issues. Built from high-rigidity MDF and finished in two luxurious real wood veneers or piano gloss black, the F501S combines refined aesthetics with cutting-edge audio technology at class-leading value. Featuring a presence control switch for tailored midrange detail, the F501S brings room-filling performance for both music and home cinema enthusiasts.

Here’s more on the core Fyne Audio technologies that are used in the F500 Series.

IsoFlare

Fyne Audio’s IsoFlare™ technology is a true point source design: low, mid, and high frequencies all emanate from the same physical point, thanks to the coaxial arrangement of the mid/bass cone and magnesium dome tweeter. This architecture ensures perfect time and phase alignment across the frequency spectrum. The result is:

• Unmatched clarity and holographic imaging
• Accurate reproduction of instruments’ natural tonal character
• An immersive experience that draws you into the music
• Whether you're sitting dead-center or off to the side, the IsoFlare™ driver ensures sound remains balanced and true—preserving the relationship between fundamentals and harmonics no matter where you are in the room.
  

FyneFlute

The flexible surround of a driver cone allows the cone to move back and forth to create sound. This material is not perfect and can reflect energy back onto the cone, or resonate at certain frequencies, a class of distortions called mis-termination effects. Fyne Audio discovered that a variable geometry using special computer designed fluting on the surround, effectively terminates cone energy and eliminates the mis-termination effects and reduces coloration, providing greater musical accuracy.

BassTrax 

The patent pending BassTrax Tractrix profile LF diffuser system is a complex yet refined approach to bass loading and reflex porting. It incorporates a twin cavity cabinet design with a tuned waveguide port firing downwards from the reinforced lower panel of the cabinet. This loading technique broadens the tuning frequency to reduce cone excursion and acts as a damping system that blocks potential standing wave resonances produced by the main internal port between cavities.

The lower cavity bass port vents downwards onto the BassTrax Tractrix profile diffuser. The unique, mathematically derived tractrix profile maintains a true 90-degree angle at each intersection of the expanding wavefront, so converts plain wave LF energy into a horizontally expanding spherical 360-degree wavefront with no loss of total energy. The result is seamlessly uniform LF integration into the room and a loudspeaker that is far less critical of room positioning.

High-Quality Crossover

The F500S Series features expertly engineered crossovers designed to deliver exceptional sound clarity and detail. Each model incorporates high-quality components, including low-loss laminated core inductors and premium polypropylene film capacitors, to ensure minimal signal degradation.

These crossovers are meticulously crafted and computer-optimized, with final adjustments made by ear to achieve a perfectly balanced frequency response. This precise tuning ensures seamless integration between the bass, midrange, and treble drivers, resulting in a natural, immersive soundstage. All but the LCR models also offer bi-wire terminals, allowing for improved signal separation and enhanced audio fidelity, catering to discerning audiophiles.

Specifications

Type: 2.5-way, downwards firing port, with BassTrax Tractrix diffuser*

Sensitivity: 90 dB

Nominal Impedance: 8 ohm

Frequency Response (-6 dB typical in room): 36 Hz-34 kHz

Drivers (Neodymium magnet system)
High: 25 mm magnesium dome compression tweeter
Mid/Bass: 1 x 5.9" (150 mm) IsoFlare point source
Bass: 1 x 5.9" (150 mm) 

Crossover Frequency: 250 Hz, 1.7 kHz

Crossover Type: 2nd order low pass, 1st order high pass

Dimensions (HWD): 38.7" x 9.84" x 12.5” (984 x 250 x 317 mm) 

Weight: 41 lb.