Audio T Verdict
The Fyne Audio F501E delivers the scale, bass weight and room-filling character people often expect from a much more expensive floorstanding loudspeaker.
Its 150mm IsoFlare point-source driver creates a focused and coherent soundstage, while the dedicated bass driver adds impressive depth and authority without making the presentation feel heavy or slow.
Fyne Audio’s downward-firing port and BassTrax diffuser help the speakers work successfully in real living rooms, making positioning less troublesome than it can be with many conventionally ported floorstanders.
Clear vocals, controlled bass, smooth treble and straightforward amplifier matching make the F501E an easy speaker to recommend for music, television and home cinema systems in small to medium-sized rooms.
Fyne Audio F501E Floorstanding Speakers
The Fyne Audio F501E is a compact 2.5-way floorstanding loudspeaker designed to bring the company’s core acoustic technologies to a more accessible price point.
It combines a 150mm IsoFlare point-source driver with a matching 150mm bass unit, allowing the slim cabinet to deliver precise imaging, natural midrange reproduction and convincing low-frequency scale.
Its principal features include:
- 2.5-way floorstanding design
- 150mm IsoFlare point-source driver
- 25mm titanium-dome compression tweeter
- Neodymium high-frequency magnet system
- Computer-optimised high-frequency waveguide
- Vented tweeter rear chamber
- 150mm multi-fibre bass and midrange cone
- Dedicated 150mm multi-fibre bass driver
- FyneFlute variable-geometry surrounds
- Downward-firing bass-reflex port
- BassTrax Tractrix profile diffuser
- Bi-wire loudspeaker terminals
- Magnetic removable grilles
- High-rigidity internally braced MDF cabinet
- Black Ash vinyl finish
Accessible Fyne Audio Technology
The F500E Series is designed as an entry point to technologies developed across Fyne Audio’s more advanced loudspeaker ranges.
The F501E includes the company’s three core acoustic principles:
- IsoFlare point-source driver technology
- FyneFlute cone-surround technology
- BassTrax Tractrix bass-diffusion technology
These features work together to provide clear imaging, controlled dispersion and bass that integrates more evenly with the listening room.
2.5-Way Floorstanding Design
The F501E uses a 2.5-way configuration rather than a conventional two-way or three-way arrangement.
The upper IsoFlare driver reproduces the midrange and treble while also contributing to the bass. The lower 150mm driver operates only through the low-frequency region.
This arrangement provides:
- Greater bass output than a single-driver standmount speaker
- Improved low-frequency extension
- Higher useful output for larger musical passages
- A slim cabinet without a separate large midrange driver
- Point-source reproduction through the critical vocal and treble regions
150mm IsoFlare Point-Source Driver
The upper driver combines a 150mm multi-fibre bass and midrange cone with a centrally mounted titanium compression tweeter.
Placing the high-frequency unit at the acoustic centre of the larger cone allows both sections to radiate from the same point in space.
This point-source arrangement is designed to provide:
- Precise stereo imaging
- A coherent transition between midrange and treble
- Stable vocal placement
- Consistent sound across a wider seating area
- Natural reproduction away from the exact centre position
- Reduced changes in tonal balance as the listener moves
The broad and controlled dispersion makes the F501E particularly practical in living rooms where more than one person may be listening.
25mm Titanium Compression Tweeter
A 25mm titanium dome forms the diaphragm of the IsoFlare high-frequency compression driver.
Titanium combines low moving mass with high rigidity, helping the tweeter respond quickly while moving unwanted break-up behaviour beyond its main operating range.
The high-frequency unit is designed to provide:
- Clear vocal detail
- Clean transient reproduction
- Extended treble response
- Controlled dispersion
- A smooth handover from the surrounding midrange cone
Fyne Audio specifies an in-room frequency response extending to 34kHz.
Neodymium Magnet and Vented Rear Chamber
The compression tweeter uses a powerful neodymium magnet system and a vented rear chamber.
The rear chamber helps lower the tweeter’s resonance so that it remains away from the crossover region.
This supports:
- Smoother upper-midrange integration
- Reduced unwanted resonance
- Cleaner treble reproduction
- Improved control around the crossover point
Computer-Optimised Waveguide
The central tweeter fires through a shaped waveguide formed within the surrounding bass and midrange cone.
The computer-optimised geometry is designed to:
- Control high-frequency dispersion
- Reduce internal reflections
- Provide a flatter frequency response
- Match the directivity of the tweeter and midrange cone
- Preserve imaging across a wider listening area
Multi-Fibre Bass and Midrange Cone
The main 150mm cone uses a multi-fibre paper construction selected for its combination of low mass, stiffness and natural damping.
It reproduces bass and midrange frequencies before handing over to the centrally mounted tweeter at approximately 1.7kHz.
The cone is designed to support:
- Natural vocal reproduction
- Fast transient behaviour
- Controlled bass output
- Low unwanted colouration
- A smooth transition through the crossover region
Dedicated 150mm Bass Driver
A second 150mm multi-fibre driver extends low-frequency output and adds greater scale to the F501E’s performance.
This supplementary driver operates below the 250Hz crossover point and works with the bass output from the IsoFlare cone.
Its contribution helps provide:
- Deeper bass extension
- Greater impact from drums and bass instruments
- Improved room-filling ability
- Reduced workload for the upper driver at low frequencies
- Higher useful output during demanding passages
FyneFlute Roll Surround Technology
The outer edges of the multi-fibre cones use Fyne Audio’s FyneFlute surround.
Instead of a conventional surround with a uniform curved profile, FyneFlute incorporates carefully shaped fluting around its circumference.
This helps:
- Control energy travelling through the cone
- Reduce reflections from the cone termination
- Improve transient response
- Reduce unwanted resonances
- Limit colouration through the midrange
BassTrax Tractrix Diffuser System
The F501E uses a downward-firing bass-reflex port that directs low-frequency energy onto Fyne Audio’s BassTrax Tractrix profile diffuser.
The diffuser converts the port output into a more evenly expanding 360-degree wavefront.
This arrangement is designed to provide:
- More even bass distribution throughout the room
- Reduced sensitivity to speaker toe-in
- Less obvious port noise
- Improved integration between the port and drive units
- Greater flexibility when positioning the speakers
The speakers will still respond to nearby walls and corners, but the BassTrax system can make balanced results easier to achieve than with a conventional rear-facing port.
36Hz Bass Extension
Fyne Audio specifies an in-room frequency response extending from 36Hz to 34kHz within its published -6dB limits.
This allows the F501E to deliver convincing bass depth without requiring a particularly large cabinet.
The final low-frequency balance will depend on:
- Distance from rear and side walls
- Room dimensions
- Floor construction
- Listening position
- Partnering amplifier
- Speaker and listener symmetry
- The recording being played
90dB Sensitivity
The F501E has a published sensitivity of 90dB for 2.83V measured at one metre.
This makes it relatively straightforward to drive and allows it to work with a broad range of quality stereo amplifiers and AV receivers.
Fyne Audio recommends amplifier power between 30W and 150W RMS.
The ideal amplifier will also depend on:
- Current delivery
- Room size
- Listening distance
- Preferred playback level
- The dynamic demands of the music
- Whether the speakers will also be used for home cinema
Eight-Ohm Nominal Impedance
Fyne Audio specifies a nominal impedance of eight ohms.
This makes the F501E a practical electrical match for many modern integrated amplifiers, stereo receivers and home cinema amplifiers.
A capable and stable amplifier will still provide better bass control, dynamics and definition than a lightweight design being driven close to its limits.
75W Continuous Power Handling
The F501E has a published continuous power-handling figure of 75W RMS.
This should not be confused with the recommended amplifier range of 30W to 150W.
A clean and controlled amplifier at the upper end of the recommended range may be safer than an underpowered amplifier being driven into heavy clipping.
If the sound becomes hard, distorted or mechanically strained, reduce the listening level immediately.
Dual Crossover Frequencies
The F501E uses crossover points at 250Hz and 1.7kHz.
The lower crossover controls the contribution of the supplementary bass driver, while the upper crossover divides the signal between the IsoFlare cone and compression tweeter.
Fyne Audio specifies:
- A second-order low-pass filter
- A first-order high-pass filter
- Low-loss laminated-core inductors
- High-grade polypropylene film capacitors
The crossover is computer optimised and refined by listening to achieve a natural transition between the drivers.
Bi-Wire Loudspeaker Terminals
The F501E provides separate terminal pairs for the high-frequency and low-frequency crossover sections.
This allows:
- Conventional single-wire operation
- Bi-wire operation
- Passive bi-amplification with suitable equipment
For normal single-wire use, the supplied terminal links must remain fitted securely.
Remove the Links Before Bi-Amplification
The links between the high-frequency and low-frequency terminals must be removed before separate amplifier channels are connected.
Leaving the links fitted can connect two amplifier outputs together and cause serious damage. Speak to Audio T before attempting a bi-amplified installation.
High-Rigidity MDF Cabinet
The enclosure is constructed from high-rigidity MDF and reinforced with internal bracing.
A rigid and well-controlled cabinet helps prevent stored mechanical energy from being released after the original musical signal.
This supports:
- Cleaner midrange reproduction
- Improved bass definition
- More stable stereo imaging
- Reduced cabinet resonance
- Greater clarity during complex passages
Compact Floorstanding Proportions
At 984mm high and 250mm wide, the F501E offers useful cabinet volume without becoming visually overwhelming.
Its slim proportions make it suitable for:
- Small and medium-sized living rooms
- Stereo systems where standmount speakers and stands would occupy similar floor space
- Home cinema installations requiring substantial front-channel performance
- Rooms where very wide loudspeakers would dominate the layout
Black Ash Finish
The F501E is finished in a practical Black Ash vinyl wrap.
The understated finish is designed to suit a wide range of rooms and equipment while remaining straightforward to maintain.
The finish does not alter the published acoustic specification.
Magnetic Removable Grilles
Removable magnetic grilles provide driver protection without requiring visible fixing points across the front baffle.
The speakers can be used with the grilles fitted or removed according to visual preference.
Leaving the grilles fitted can be sensible where young children, pets or regular room activity create a risk of accidental contact with the drivers.
Room Positioning
The BassTrax system makes the F501E relatively accommodating, but careful positioning will still improve the final result.
Begin with the speakers:
- The same distance from the main listening position
- A similar distance from the rear wall
- Clear of room corners
- Placed securely and level
- Separated enough to form a convincing stereo image
Move both speakers in small and equal increments while listening for changes in bass weight, central vocal focus and soundstage depth.
Distance from the Rear Wall
Moving the F501E closer to a wall will normally increase bass output, while bringing it further into the room can produce a leaner and more clearly defined low-frequency balance.
Begin with a sensible gap behind the cabinets and adjust according to:
- Room size
- Wall construction
- Listening position
- Amount of bass in the system
- Personal preference
Avoid placing the speakers tightly into corners unless additional low-frequency reinforcement is genuinely required.
Toe-In Adjustment
The IsoFlare driver provides broad and consistent dispersion, so the F501E does not necessarily require aggressive toe-in.
Begin with each speaker turned slightly towards the main listening position, then compare:
- Central vocal focus
- Soundstage width
- Treble balance
- Image depth
- Performance away from the centre seat
Greater toe-in can strengthen image focus, while a more forward-facing position may create a wider and more relaxed presentation.
Floor Levelling and Stability
Each cabinet should stand level and remain free from rocking.
A secure installation helps:
- Improve bass definition
- Maintain stereo-image stability
- Reduce cabinet movement
- Protect the floor
- Prevent accidental instability
Check the suitability of any supplied or optional floor fittings for carpet, wood, laminate, tile or stone before installation.
Amplifier Matching
The F501E can be partnered with a wide variety of integrated amplifiers, stereo receivers and pre-power systems.
A good match should provide:
- Stable operation into an eight-ohm nominal load
- Sufficient power for the room and listening distance
- Good current delivery
- Low noise
- A tonal balance that suits the room and source components
The speakers’ 90dB sensitivity means very high amplifier power is not essential, but better amplification will normally improve bass control, timing and clarity.
F501E or F501S?
Choose the F501E When
- Exceptional value is the priority
- A Black Ash finish suits the room
- A titanium compression tweeter is preferred
- 90dB sensitivity suits the partnering amplifier
- A compact floorstander is required
- The system budget must also cover amplification and sources
Choose the F501S When
- A magnesium compression tweeter is preferred
- A rear presence adjustment is useful
- Real-wood veneer or piano-gloss finishes are important
- The upgraded cabinet and crossover justify the additional cost
- A more refined partnering system is available
- Greater long-term upgrade potential is required
Explore the Fyne Audio F501S floorstanding speakers for the enhanced model with magnesium high-frequency technology, presence adjustment and premium finishes.
F501E or F500S?
Choose the F501E When
- A floorstanding design is preferred
- Deeper bass extension is required
- A dedicated supplementary bass driver is useful
- Higher playback levels are expected
- Speaker stands are not wanted
- The room is medium in size
Choose the F500S When
- A premium standmount design is preferred
- The room is smaller
- A magnesium compression tweeter is important
- Separate speaker stands can be accommodated
- A more compact visual presence is wanted
- A subwoofer may be added separately
The Fyne Audio F500S standmount speakers offer upgraded F500S Series technology within a smaller cabinet.
F501E or F500SP?
Choose the F501E When
- Floorstanding bass scale is important
- A lower purchase price is preferred
- The Black Ash finish suits the room
- A simple stereo or home cinema system is planned
- A standmount speaker and stands are unwanted
- Strong performance per pound is the main priority
Choose the F500SP When
- A UK-built premium standmount is preferred
- Special Production driver technology is important
- Greater crossover and cabinet refinement is required
- Luxury finish options suit the room
- A more ambitious amplifier and source are available
- Precise imaging takes priority over floorstanding scale
Explore the Fyne Audio F500SP standmount speakers for the UK-built Special Production alternative.
Adding Fyne Audio S-Trax Super Tweeters
Fyne Audio publishes an S-Trax positioning reference of 44mm from the front edge of the F501E cabinet.
The optional Fyne Audio S-Trax Super Tweeters are designed to extend high-frequency energy and enhance the perception of space and openness within a compatible system.
The audible result will depend on:
- The complete system
- The amplifier
- The listening room
- The recording
- The listener
Demonstration and careful positioning are recommended before purchase.
Adding an Active Subwoofer
The F501E already delivers useful low-frequency extension, but an active subwoofer can add greater depth and scale where required.
A subwoofer may be worthwhile for:
- Larger rooms
- Electronic and orchestral music
- Home cinema effects
- Lower-volume listening
- Reproducing frequencies below the speakers’ natural range
The crossover, output level, phase and room position must be adjusted carefully so that the subwoofer supports rather than overwhelms the main speakers.
Stereo and Home Cinema Use
The F501E is equally suitable as the main speaker in a stereo music system or as the front left and right pair in an F500E Series home cinema installation.
The IsoFlare driver’s controlled dispersion helps maintain clear dialogue and stable effects across a wider seating area.
For home cinema use, configure:
- Speaker distances
- Channel levels
- Bass-management crossover points
- Subwoofer level and phase
- Room-correction settings
Automatic room calibration provides a useful starting point, but the final result should still be checked by listening.
Running In
New loudspeaker drive units can change slightly as their moving components settle through normal use.
Enjoy the speakers at sensible listening levels and allow their performance to develop naturally rather than using unusually loud or specialist running-in signals.
Final positioning and system adjustments are best made after the speakers have received regular use.
Cabinet and Driver Care
Clean the cabinets with a soft, dry and lint-free cloth.
Do not use:
- Abrasive cleaning products
- Furniture polish
- Solvents
- Aerosol sprays
- Excessive water
Avoid touching the IsoFlare cone, titanium tweeter diaphragm, supplementary bass cone and FyneFlute surrounds.
Key Features
- Compact 2.5-way floorstanding speakers
- Supplied as a stereo pair
- Part of the F500E Series
- 150mm IsoFlare point-source driver
- 150mm multi-fibre bass and midrange cone
- 25mm titanium compression tweeter
- Neodymium high-frequency magnet system
- Vented tweeter rear chamber
- Computer-optimised high-frequency waveguide
- Dedicated 150mm multi-fibre bass driver
- FyneFlute roll-surround technology
- Downward-firing bass-reflex port
- BassTrax Tractrix profile diffuser
- 360-degree port-energy distribution
- 36Hz to 34kHz in-room frequency response
- 90dB sensitivity
- Eight-ohm nominal impedance
- 30W to 150W recommended amplifier power
- 75W continuous power handling
- 250Hz lower crossover frequency
- 1.7kHz upper crossover frequency
- Second-order low-pass crossover
- First-order high-pass crossover
- Low-loss laminated-core inductors
- Polypropylene film capacitors
- Bi-wire loudspeaker terminals
- Single-wire compatibility
- Passive bi-amplification compatibility
- High-rigidity MDF cabinet
- Extensive internal bracing
- Magnetic removable grilles
- Black Ash vinyl finish
- 984mm cabinet height
- 250mm cabinet width
- 294mm cabinet depth
- 17.8kg weight per speaker
- Published S-Trax positioning reference
- Suitable for stereo and home cinema systems
- Seven-year passive-loudspeaker warranty subject to Fyne Audio’s terms
Frequently Asked Questions
Are the Fyne Audio F501E speakers sold as a pair?
Yes. The Audio T product contains one stereo pair.
What type of speaker is the F501E?
It is a passive 2.5-way floorstanding loudspeaker with a downward-firing bass-reflex port and BassTrax diffuser.
What is an IsoFlare driver?
It is Fyne Audio’s point-source arrangement in which the compression tweeter is mounted at the acoustic centre of the bass and midrange cone.
What size is the IsoFlare driver?
The F501E uses a 150mm IsoFlare bass and midrange driver with a centrally mounted 25mm tweeter.
What material is used for the tweeter?
The high-frequency compression driver uses a titanium dome.
Does the F501E have a separate bass driver?
Yes. A dedicated 150mm multi-fibre bass driver supplements the low-frequency output from the IsoFlare cone.
What is FyneFlute?
FyneFlute is the shaped roll surround around the main cones, designed to reduce reflected energy and improve transient behaviour.
What is BassTrax?
BassTrax is the Tractrix-profile diffuser beneath the downward-firing port. It spreads the port output into a more even 360-degree wavefront.
Can the F501E be placed close to a wall?
The BassTrax system makes positioning relatively flexible, but wall distance will still affect bass output. Try several positions before completing the installation.
What is the frequency response?
Fyne Audio specifies 36Hz to 34kHz within its published -6dB typical in-room limits.
What is the sensitivity?
90dB for 2.83V measured at one metre.
What is the nominal impedance?
Eight ohms.
How powerful should the amplifier be?
Fyne Audio recommends an amplifier rated between 30W and 150W RMS.
What is the continuous power handling?
75W RMS.
Does the F501E need an especially powerful amplifier?
No. Its 90dB sensitivity makes it relatively easy to drive, although a capable amplifier will improve bass control, dynamics and clarity.
What are the crossover frequencies?
The supplementary bass driver crosses over at 250Hz, while the IsoFlare tweeter crossover operates at 1.7kHz.
Can the F501E be bi-wired?
Yes. Separate high-frequency and low-frequency terminal pairs are provided.
Can the F501E be bi-amplified?
Yes, with suitable amplification and correct setup. The terminal links must be removed before separate amplifier channels are connected.
Are grilles included?
Yes. Removable magnetic grilles are supplied.
Which finish is available?
The F501E is currently offered in Black Ash.
What are the dimensions?
Fyne Audio specifies 984 x 250 x 294mm (H x W x D), including the grille, terminals and plinth but excluding spikes.
How much does each speaker weigh?
Approximately 17.8kg.
Can an active subwoofer be added?
Yes. A correctly integrated subwoofer can extend bass performance further, particularly for home cinema or a larger room.
Can Fyne Audio S-Trax super tweeters be used?
Fyne Audio publishes an S-Trax positioning reference for the F501E. Compatibility, positioning and system benefit should be confirmed before use.
Are the F501E speakers suitable for home cinema?
Yes. They can be used as the front left and right speakers within a matched F500E Series home cinema system.
What is the warranty?
Fyne Audio passive loudspeakers carry a seven-year manufacturer warranty for the original registered owner when purchased through an authorised dealer, subject to product registration, proof of purchase and the full warranty terms.
Related Fyne Audio Products and Audio T Guides
Why Buy From Audio T?
- Fyne Audio F501E demonstrations
- Comparisons with the F501S, F500S and F500SP
- Amplifier and system-matching advice
- Room-positioning and toe-in guidance
- Single-wire and bi-wire cable advice
- Passive bi-amplification guidance
- Active subwoofer integration
- S-Trax Super Tweeter demonstrations
- Stereo and home cinema system planning
- Floor-levelling and stability guidance
- Speaker-cable selection and termination
- Cabinet and driver-care guidance
- Fyne Audio warranty-registration advice
- Ongoing system and after-sales support
Contact your local Audio T store to arrange a demonstration or discuss amplification, positioning, cabling and system matching for the Fyne Audio F501E.