Audio T Verdict
The DALI SUB K-14 F is a substantial active subwoofer designed to deliver the scale and low-frequency authority required by larger stereo systems and serious home cinemas.
Its front-firing 14-inch long-stroke driver uses a rigid aluminium cone without a separate dust cap. This creates a continuous piston-like surface intended to start and stop quickly while keeping unwanted distortion under control.
A built-in Class D amplifier delivers 450W of continuous IEC power with up to 500W available at maximum output. A switch-mode power supply, thermal protection and internal limiting provide the control and headroom required to drive the large woofer during demanding music and film soundtracks.
The bass-reflex cabinet extends the specified response down to 29Hz and can reach a maximum output of 115dB at one metre. A downward-firing port and raised aluminium base use the floor boundary to improve efficiency and help distribute bass through the room.
Stereo line-level and dedicated mono LFE inputs allow the K-14 F to work with suitable stereo pre-amplifiers, integrated amplifiers, processors and AV receivers. Level, variable crossover and 0 or 180-degree phase controls provide the adjustment required to integrate it with different loudspeakers and rooms.
The K-14 F does not provide speaker-level inputs, balanced XLR connections, app control, automatic room correction or wireless reception as standard. A suitable line-level or LFE output is therefore required, although the optional DALI WSR can add wireless compatibility with a DALI EQUI system.
At 26.4kg and nearly 45cm tall, this is not a discreet miniature subwoofer. However, for systems and rooms that can accommodate it, the K-14 F combines impressive output with the speed, control and musical integration expected from DALI.
DALI SUB K-14 F Active Subwoofer
The DALI SUB K-14 F is a front-firing active subwoofer for two-channel Hi-Fi and multichannel home cinema systems.
It combines a 14-inch aluminium-cone driver, bass-reflex cabinet and built-in Class D amplifier within one self-contained enclosure.
The internal amplification means that the connected stereo amplifier or AV receiver supplies only a low-level audio signal. The K-14 F then provides the power required to drive its own bass unit.
A variable crossover, level control, phase switch and automatic signal-sensing mode allow the subwoofer to be adjusted for the main loudspeakers, listening position and room.
No Speaker-Level Input
The DALI SUB K-14 F accepts stereo RCA line-level signals and a mono RCA LFE signal.
It does not provide high-level loudspeaker terminals.
- No speaker-level input
- No Neutrik-style high-level connection
- No balanced XLR input
- No optical or coaxial digital input
- No HDMI connection
- No built-in wireless receiver
The connected amplifier, pre-amplifier, streamer or AV receiver must provide a suitable line-level or subwoofer output.
14-Inch Long-Stroke Woofer
The K-14 F uses one front-firing 14-inch long-stroke bass driver.
The large radiating area allows the driver to move a substantial volume of air, helping produce the scale and physical impact required by deep electronic music, orchestral recordings and film effects.
A long-stroke design gives the cone the excursion required to reproduce lower frequencies and demanding peaks without relying solely on an oversized cabinet.
Driver size alone does not guarantee controlled bass. The cone, voice coil, motor system, suspension, amplifier, enclosure and port must operate together as one system.
Rigid Aluminium Cone
The woofer uses a black aluminium cone chosen for its combination of stiffness and relatively low mass.
A rigid diaphragm is less likely to flex unpredictably as it moves, helping the cone behave as a controlled piston across the frequencies reproduced by the subwoofer.
Low moving mass also assists transient response, allowing the driver to start and stop more quickly as the signal changes.
This is important with music, where a subwoofer must reproduce the pitch, timing and texture of a bass instrument rather than simply adding continuous low-frequency weight.
Integrated Cone Without a Dust Cap
The aluminium diaphragm forms one continuous surface without a separately attached central dust cap.
Removing the join between cone and dust cap increases structural consistency and helps the entire diaphragm move together.
DALI describes this as piston-like behaviour, intended to reduce unwanted resonances and distortion within the subwoofer's operating range.
Oversized Ferrite Magnet System
The driver's motor system uses an oversized ferrite magnet optimised to concentrate magnetic flux within the voice-coil gap.
A strong and carefully controlled magnetic field allows the amplifier to move and stop the cone with greater precision.
DALI specifies a measured BxL force factor of 17 N/A, reflecting the strength of the motor's control over the voice coil.
This contributes to the K-14 F's ability to reproduce both fine low-frequency detail and higher output levels.
Four-Layer Vented Voice Coil
The woofer uses a 30mm-long, four-layer voice coil designed for extended linear movement.
Ventilation around the voice coil and pole piece helps remove heat generated during demanding playback.
Lower operating temperatures improve consistency because changes in coil temperature can alter electrical resistance and affect output.
The vented pole piece also reduces compression within the motor system, allowing the cone to move without unwanted internal pressure restricting its travel.
Low-Loss Long-Excursion Suspension
An oversized suspension allows the aluminium cone to make long and controlled movements.
The suspension must remain compliant enough to reproduce small changes in the signal while retaining the control required during larger bass transients.
DALI's low-loss approach is intended to prevent the suspension from adding unnecessary mechanical resistance or obscuring lower-level information.
450W Continuous Class D Amplification
The built-in amplifier delivers 450W of continuous IEC power.
DALI also specifies a maximum amplifier output of 500W RMS.
The continuous figure reflects the amplifier's ability to sustain demanding operation, while the maximum figure indicates the additional output available for musical and cinematic peaks.
The substantial power output gives the amplifier the electrical control required to accelerate and stop the large 14-inch driver.
Class D Amplifier Design
The K-14 F uses an efficient Class D amplifier.
Class D operation is particularly suitable for active subwoofers because it can provide high power from a relatively compact amplifier module while limiting unnecessary heat generation.
The incoming analogue signal passes through filtering designed specifically for the driver, enclosure and intended operating range.
The amplifier, analogue filter and woofer were developed as a complete system rather than as unrelated components assembled within one cabinet.
Switch-Mode Power Supply
A switch-mode power supply provides energy to the Class D amplifier.
The design helps maintain a relatively low amplifier operating temperature and avoids the need for a large external heatsink.
Its compact dimensions also allow more of the cabinet volume to be devoted to the acoustic enclosure and downward-firing port.
Thermal Protection
A built-in temperature-sensitive protection circuit monitors the amplifier during operation.
If excessive heat develops, the subwoofer can shut down temporarily until the amplifier returns to a safe operating temperature.
It will then be able to resume operation.
Protection Is Not a Substitute for Sensible Use
The protection circuit reduces the risk of damage but cannot guarantee protection against every form of misuse or prolonged overloading.
If the subwoofer repeatedly shuts down, reduce the output level and check its ventilation, placement and system settings.
Integrated Power Limiter
An internal limiter compares the incoming signal with the amplifier's maximum available output.
If the requested level is about to exceed that limit, the circuit reduces the signal sufficiently to avoid amplifier clipping.
DALI designed the limiter to operate without obvious pumping or sudden changes in perceived volume.
It acts only at extreme output levels and is intended to reduce distortion while protecting the amplifier and driver.
29Hz Low-Frequency Extension
DALI specifies a frequency range of 29Hz to 160Hz within plus or minus 3dB.
This allows the K-14 F to reproduce frequencies below the useful range of many standmount and floorstanding loudspeakers.
Actual in-room extension will depend on placement, room dimensions, construction, listening position and interaction with the main loudspeakers.
Room boundaries can increase output at some frequencies while creating peaks or cancellations at others.
Maximum Output of 115dB
The K-14 F is specified to produce a maximum sound-pressure level of 115dB at one metre.
This gives it the output capability required for larger rooms and demanding home cinema effects.
Maximum sound pressure should not be confused with everyday listening quality. Correct integration, low distortion and even room response remain more important than simply producing the highest possible level.
Protect Your Hearing and Your Room
Sustained high sound levels can damage hearing and may cause furniture, fittings and room surfaces to vibrate.
Increase the level gradually and stop if the subwoofer, main loudspeakers or room begin to produce obvious rattling or distortion.
Bass-Reflex Cabinet
The K-14 F uses a bass-reflex enclosure tuned to 34Hz.
A reflex port uses the movement of air within the cabinet to reinforce output around the tuning region.
This increases low-frequency efficiency and allows the system to produce greater output without requiring the driver to provide every part of the acoustic energy alone.
The port, cabinet, driver and amplifier have been designed to work together rather than using a generic reflex arrangement.
Downward-Firing Bass Port
The reflex port fires downwards towards the floor beneath the cabinet.
This uses the nearby floor boundary to increase efficiency and distribute low-frequency energy around the room.
A downward-facing port can also make placement less visually intrusive than a large opening positioned on the front or rear panel.
The port must remain unobstructed so that air can move freely.
Convex Tapered Port Design
The downward-firing vent uses a convex tapered profile.
The shape is intended to reduce turbulence and audible port noise as air moves through the opening.
DALI tested the dimensions and placement of the vent to optimise its interaction with the cabinet and woofer.
Raised Aluminium Base
A solid aluminium base supports the cabinet approximately 50mm above the floor.
This creates the clearance required by the downward-firing port while retaining the efficiency provided by its proximity to the floor.
The base also helps decouple the main MDF enclosure from the supporting surface and gives the large cabinet a visually lighter appearance.
Do Not Block the Space Beneath the Cabinet
The downward-firing port requires open space between the cabinet and floor.
Do not place the K-14 F on thick unstable padding, allow objects to collect beneath it or position it so that the airflow around the port is restricted.
44-Litre MDF Cabinet
The solid MDF enclosure provides approximately 44 litres of internal working volume for the woofer and port.
The cabinet has been designed to resist the reaction forces produced as the large driver moves.
Uncontrolled cabinet vibration could add sound that was not present in the recording and reduce the definition of bass notes.
The 26.4kg total weight reflects the substantial driver, amplifier, MDF construction and aluminium base.
Stereo RCA Line Inputs
Left and right RCA line inputs allow the K-14 F to connect to a suitable stereo pre-amplifier output, variable line output or dedicated stereo subwoofer output.
The signal entering through the line inputs passes through the K-14 F's internal variable low-pass filter.
A stereo amplifier or pre-amplifier should provide a variable output that follows its main volume control. A fixed recording output is not normally suitable because the subwoofer level would remain unchanged when the main listening volume is adjusted.
Check the Amplifier Output Type
Do not assume that every pair of RCA outputs can be used with an active subwoofer.
Check the amplifier instructions or speak to Audio T to confirm that the output is variable and suitable for feeding an active subwoofer.
Mono LFE Input
A dedicated mono RCA LFE input is provided for connection to a suitable AV receiver, surround processor or amplifier with managed subwoofer output.
When the LFE input is used, the K-14 F's internal crossover is bypassed.
The AV receiver or processor then controls the bass-management frequency, channel level, distance and any room-correction settings.
This prevents two independent low-pass filters from unnecessarily affecting the same signal.
Use the AV Receiver for LFE Setup
Connect the receiver's subwoofer output to the black LFE input and complete the crossover, level and distance settings through the receiver's setup menu.
Consult the receiver instructions because the available bass-management and room-correction options vary between manufacturers.
Stereo or Home Cinema Connection?
Stereo Line-Level Connection
- Use one or both stereo LINE inputs
- Requires a suitable variable line or subwoofer output
- The K-14 F crossover control remains active
- Set level through the rear volume control
- Set phase to 0 or 180 degrees
- Adjust crossover to blend with the main speakers
AV Receiver LFE Connection
- Use the dedicated black LFE input
- The internal K-14 F crossover is bypassed
- The AV receiver handles bass management
- Set a fixed rear-panel volume before calibration
- Set phase as required by placement and calibration
- Run the receiver's setup or room-correction process
Variable 40Hz to 120Hz Crossover
The rear crossover control adjusts the internal low-pass filter between 40Hz and 120Hz when the LINE inputs are used.
The crossover determines the upper region reproduced by the subwoofer.
Smaller loudspeakers generally require a higher setting because their useful bass response begins to fall away sooner.
Larger floorstanding speakers can often be partnered with a lower crossover point.
The final setting should produce a smooth transition without an obvious gap or an exaggerated overlap between the subwoofer and main loudspeakers.
Do Not Choose a Crossover from the Speaker Specification Alone
Published frequency response provides a useful starting point, but the best setting also depends on the room, speaker placement, listening position and slope of the loudspeaker's natural bass roll-off.
Use familiar music and adjust by listening rather than treating one published number as an absolute setting.
Rear Volume Control
The volume control adjusts the K-14 F's output relative to the main loudspeakers.
The correct setting allows the system to sound deeper and more substantial without making the subwoofer obvious as a separate source.
Excessive level can make bass sound slow, boomy and disconnected from the music.
In an AV system, select a sensible fixed position on the K-14 F before running the receiver's calibration process, then make everyday adjustments through the receiver.
0 or 180-Degree Phase Switch
The phase switch provides 0 and 180-degree settings.
This changes the timing relationship between the subwoofer and the main loudspeakers around their shared operating region.
An unsuitable phase relationship can cause partial cancellation, making bass sound weak even when the subwoofer output level is high.
DALI recommends choosing the setting that produces the strongest and most even bass at the listening position.
Automatic Signal-Sensing Mode
The rear Power Mode switch provides On, Auto and Off positions.
In Auto mode, the amplifier switches on when a signal is detected at one of the inputs.
If no signal is detected for approximately 20 minutes, the amplifier enters standby.
The front status indicator illuminates green while the subwoofer is active and red while it is in standby.
Continuous On Mode
Selecting On keeps the amplifier active whenever the main rear power switch is switched on.
This may be useful where a very quiet source signal does not consistently wake the automatic circuit or where the subwoofer is controlled through a separately switched mains supply.
Switch the main power off when the K-14 F will not be used for an extended period.
Positioning the K-14 F
Room position has a considerable effect on both the quantity and quality of bass.
DALI recommends floor placement near a wall or in a corner.
A position close to one wall increases bass output, while a corner can provide still greater reinforcement.
More output is not automatically better. Moving the subwoofer can also excite room resonances and produce uneven bass at the listening position.
Corner Placement
A corner position can maximise available output and reduce the amount of amplifier power required to achieve a given listening level.
This can be useful in a larger room or with demanding home cinema material.
However, a corner can also exaggerate particular frequencies. Moving the cabinet a relatively small distance may produce a considerable change in perceived bass quality.
Wall Placement
Positioning the K-14 F along a wall can provide useful reinforcement while producing a different balance from a room corner.
This may offer a better compromise between output, smoothness and visual placement.
Experiment with more than one practical position before carrying out final level and crossover adjustments.
Allow Rear Ventilation
The rear amplifier panel can become warm during operation.
DALI recommends leaving at least 50mm between the amplifier plate and the nearest object to maintain airflow.
Do not cover the front-facing woofer, downward-firing port or rear amplifier section.
Do Not Install Inside a Sealed Cabinet
The K-14 F requires free airflow and an unobstructed path for its front driver and downward-firing port.
Do not conceal it inside closed furniture or place it where soft furnishings can block the driver, controls or ventilation.
Spikes and Floor Protection
Four threaded floor spikes are included.
Spikes may improve stability on a suitable carpeted floor, but they can damage wood, laminate, tile and other hard surfaces.
Use appropriate protective floor cups or suitable alternatives where required.
Do not overtighten the locking nuts or attempt to move the 26.4kg cabinet while the spikes are in contact with the floor.
Using Two K-14 F Subwoofers
One K-14 F should provide sufficient output for many systems, but DALI also supports the use of two units.
Two subwoofers can provide greater output in a large room and may help produce a more even bass response across several listening positions.
In a stereo system, separate left and right outputs can feed the corresponding LINE input on each subwoofer.
In a surround system, a suitable processor with two subwoofer outputs or an appropriate RCA splitter may be used.
Two Subwoofers Still Require Careful Setup
Adding a second subwoofer does not automatically produce more accurate bass.
Both units must be positioned, phased and level-matched correctly. Professional or dealer assistance is worthwhile in a larger or acoustically difficult room.
Using the DALI WSR Wireless Receiver
The optional DALI WSR Wireless Sub Receiver can connect a compatible active subwoofer to a DALI EQUI wireless system.
The WSR receives the wireless subwoofer signal and provides an analogue output for connection to the K-14 F.
It requires a separate USB-C power supply.
The WSR does not turn the K-14 F into a general-purpose Bluetooth or Wi-Fi subwoofer and is intended specifically for compatible DALI wireless systems.
Music and Home Cinema
The K-14 F is designed for both two-channel music and multichannel film soundtracks.
For music, correct crossover, phase and level adjustment allow the subwoofer to extend the main loudspeakers without drawing attention to its location.
For home cinema, the 14-inch driver, 450W continuous amplifier and 115dB maximum output provide the scale required by demanding low-frequency effects.
The two uses do not require fundamentally different subwoofer engineering, but they may benefit from different receiver presets or level preferences.
Running In
DALI advises that the K-14 F can continue to improve during its initial period of use.
Up to approximately 100 hours of normal playback may be required before the driver suspension reaches its intended operating behaviour.
No special signal or exaggerated playback level is required.
Use ordinary music and films at sensible levels while the driver settles.
K-14 F or SUB E-12 F?
Choose the SUB E-12 F When
- You want a smaller and lighter cabinet
- A 12-inch driver provides sufficient output
- The room is small or medium sized
- You want a more affordable DALI subwoofer
- 170W continuous power is sufficient
- Maximum output is not the principal requirement
Choose the SUB K-14 F When
- You need substantially greater low-frequency output
- A 14-inch driver is appropriate for the room
- You want 450W of continuous amplifier power
- The system uses larger or higher-level loudspeakers
- Home cinema impact is a major priority
- The 26.4kg cabinet can be accommodated safely
The SUB E-12 F is easier to accommodate and may be more appropriate for smaller rooms, while the K-14 F offers considerably greater amplifier power, driver area and maximum output.
K-14 F or SUB C-8 D?
Choose the SUB C-8 D When
- Compact dimensions are essential
- The room is small
- A discreet down-firing design is preferred
- The system uses compact loudspeakers
- Moderate listening levels are expected
- Ease of placement takes priority over maximum scale
Choose the SUB K-14 F When
- The room and system require significantly deeper scale
- A front-firing 14-inch driver is preferred
- High-output film effects are important
- Larger floorstanding loudspeakers are being supported
- Greater amplifier headroom is required
- The larger cabinet can be positioned correctly
The SUB C-8 D is the compact option for smaller systems, while the K-14 F is intended for applications requiring far greater physical output and room-filling bass.
K-14 F or SUB V-16 F?
Choose the SUB K-14 F When
- You want a powerful but more manageable DALI subwoofer
- A 14-inch driver provides sufficient scale
- The system is used for both music and films
- You do not require THX Dominus certification
- Traditional manual controls meet your requirements
- You want to keep the system cost below flagship level
Consider the SUB V-16 F When
- You are building a reference-level home cinema
- THX Certified Dominus performance is required
- A larger 16-inch high-excursion driver is appropriate
- Extreme low-frequency output is a priority
- The room can accommodate a much larger enclosure
- The complete system justifies the additional expenditure
The SUB V-16 F is DALI's more advanced reference home cinema subwoofer. The K-14 F remains the more accessible and manageable choice for most domestic stereo and surround systems.
System Matching
Well Suited To
- Medium and large listening rooms
- High-performance home cinema systems
- Stereo systems requiring deeper bass extension
- DALI RUBICON and RUBICON C loudspeakers
- DALI OPTICON MK2 loudspeakers
- DALI OBERON and OBERON C loudspeakers
- Large standmount loudspeakers
- Floorstanding loudspeakers
- AV receivers with an RCA subwoofer output
- Processors with a dedicated LFE output
- Pre-amplifiers with a suitable variable line output
- DALI EQUI systems using the optional WSR
Check Before Buying
- No speaker-level input
- No balanced XLR connection
- No built-in wireless receiver
- No app control
- No onboard room correction
- No continuously variable phase control
- Phase options are 0 or 180 degrees
- Substantial 26.4kg weight
- Overall height is 448mm
- The downward-firing port must remain unobstructed
- A variable line or LFE output is required
- Careful positioning and adjustment are essential
Connection and Setup Guidance
- Switch off and disconnect the subwoofer from the mains before changing connections.
- Confirm that the mains voltage setting matches the UK supply.
- Use the stereo LINE inputs with a suitable variable stereo or mono line output.
- Use the dedicated LFE input with an AV receiver or surround processor.
- Do not connect loudspeaker outputs directly to the RCA inputs.
- Use a correctly screened RCA subwoofer cable.
- Begin with a moderate volume setting.
- Set phase by comparing the 0 and 180-degree positions from the listening seat.
- Use the variable crossover only when connected through the LINE inputs.
- Use the AV receiver's crossover settings when connected through LFE.
- Position the subwoofer near a wall or corner as an initial starting point.
- Leave at least 50mm behind the amplifier panel for airflow.
- Keep the front woofer and downward-firing port unobstructed.
- Use floor protection beneath the spikes on hard surfaces.
- Switch the main power off before moving the cabinet.
- Use two people to lift or reposition the 26.4kg subwoofer.
Finish Options
Black Ash
Black Ash combines a dark wood-effect cabinet with a black high-gloss front baffle.
The finish coordinates naturally with black loudspeakers, AV equipment and darker home cinema installations.
White Silk Matte
White Silk Matte combines a satin white cabinet with a white high-gloss front baffle.
The lighter finish can make the substantial cabinet appear less dominant in a modern living space.
Both finishes use the same driver, amplifier, enclosure and controls. Availability may vary, so confirm the required finish when ordering.
DALI Products and Audio T Hi-Fi Guides
These Audio T links provide useful comparisons and further guidance on DALI products, subwoofers and complete stereo or home cinema systems.
Key Features
- Active powered subwoofer
- Suitable for music and home cinema
- Front-firing bass driver
- One 14-inch long-stroke woofer
- Rigid aluminium diaphragm
- Integrated cone without separate dust cap
- Piston-like cone movement
- Oversized ferrite magnet system
- 17 N/A BxL force factor
- 30mm-long voice coil
- Four-layer voice-coil construction
- Vented voice coil
- Vented pole piece
- Low-loss long-excursion suspension
- 450W continuous IEC amplifier output
- 500W maximum amplifier output
- Class D amplifier
- Switch-mode power supply
- Thermal protection
- Integrated output limiter
- Frequency range from 29Hz to 160Hz
- Maximum output of 115dB at one metre
- Bass-reflex cabinet
- 34Hz bass-reflex tuning
- Downward-firing reflex port
- Convex tapered port profile
- Approximately 44-litre internal cabinet volume
- Solid MDF enclosure
- Raised aluminium base
- Approximately 50mm port clearance
- Stereo RCA line inputs
- Dedicated mono RCA LFE input
- 10k-ohm input impedance
- Variable volume control
- Variable 40Hz to 120Hz crossover
- 0-degree phase setting
- 180-degree phase setting
- Automatic signal sensing
- Approximately 20-minute automatic standby
- Continuous On power mode
- Forced standby Off mode
- Green On indicator
- Red standby indicator
- Detachable mains cable
- Replaceable mains fuse
- Four supplied floor spikes
- Black Ash finish
- White Silk Matte finish
- 448mm overall height
- 396mm overall width
- 428mm overall depth
- 26.4kg net weight
Frequently Asked Questions
What is the DALI SUB K-14 F?
It is a large active subwoofer with a 14-inch aluminium driver and built-in 450W continuous Class D amplifier.
Is it suitable for music?
Yes. Its variable crossover, level and phase controls allow it to extend the bass response of a suitable two-channel system.
Is it suitable for home cinema?
Yes. It provides a dedicated LFE input, 115dB maximum output and the scale required by demanding film soundtracks.
Is the woofer front firing?
Yes. The 14-inch driver is mounted on the front baffle.
Where is the bass port?
The bass-reflex port fires downwards towards the floor beneath the cabinet.
What size is the driver?
It uses one 14-inch long-stroke bass driver.
What is the cone made from?
The cone is made from rigid black aluminium.
Does it have a dust cap?
No separate dust cap is fitted. The centre forms an integrated part of the continuous aluminium diaphragm.
Why use an aluminium cone?
Aluminium provides a stiff and relatively lightweight structure that helps the cone move in a controlled piston-like manner.
What type of magnet does it use?
The driver uses an oversized ferrite magnet system.
What is the BxL force factor?
DALI specifies a measured value of 17 N/A.
What is the amplifier output?
The built-in Class D amplifier delivers 450W of continuous IEC power and up to 500W maximum RMS output.
Why are 450W and 500W both listed?
450W is the continuous IEC output, while 500W is DALI's specified maximum amplifier output.
Is it a Class D amplifier?
Yes.
Does it use a switch-mode power supply?
Yes.
Does it have overheating protection?
Yes. A thermal protection circuit can shut the amplifier down until it returns to a safe operating temperature.
Does it have an output limiter?
Yes. An integrated limiter operates at extreme output levels to reduce clipping and distortion.
What is the frequency response?
DALI specifies 29Hz to 160Hz within plus or minus 3dB.
What is the bass-reflex tuning frequency?
The enclosure is tuned to 34Hz.
How loud can it play?
DALI specifies a maximum sound-pressure level of 115dB at one metre.
What is the internal cabinet volume?
The MDF enclosure provides approximately 44 litres of working volume.
Does it have an LFE input?
Yes. A dedicated mono RCA LFE input is provided.
Does it have stereo inputs?
Yes. Left and right RCA LINE inputs are provided.
Does it have speaker-level inputs?
No. The connected amplifier must provide a suitable line-level or subwoofer output.
Does it have balanced XLR inputs?
No.
Does it have a high-level Neutrik connection?
No.
Does it have a wireless connection?
No wireless receiver is built in. The optional DALI WSR can connect it to a compatible DALI EQUI wireless system.
Can I use it with any amplifier?
The amplifier must provide a suitable variable RCA line output, dedicated subwoofer output or LFE connection.
Can I use a fixed recording output?
A fixed output is not normally suitable because its level will not follow the amplifier's main volume control.
What does the LFE input do?
It bypasses the K-14 F's internal crossover so that an AV receiver or processor can manage the bass frequencies.
Does the crossover knob work with LFE?
No. The internal crossover is bypassed when the dedicated LFE input is used.
What is the adjustable crossover range?
The crossover can be adjusted from 40Hz to 120Hz when the LINE inputs are used.
What crossover setting should I use?
The correct setting depends on the main loudspeakers, room, placement and connection method. Smaller speakers usually require a higher crossover than larger floorstanders.
What phase settings are provided?
A rear switch provides 0 and 180-degree phase settings.
Which phase setting should I use?
Choose the position that produces the strongest and most even bass at the main listening position.
Does it switch on automatically?
Yes. In Auto mode, the amplifier wakes when an input signal is detected.
When does it enter standby?
It enters standby after approximately 20 minutes without a detected input signal.
Can it remain continuously switched on?
Yes. Select the On position on the Power Mode switch.
Where should it be positioned?
DALI recommends floor placement near a wall or in a corner as an initial starting point.
Can I place it in a cabinet?
No. The front driver, downward-firing port and rear amplifier ventilation must remain unobstructed.
How much space is required behind it?
DALI recommends leaving at least 50mm between the rear amplifier plate and the nearest object.
Can it be placed on carpet?
Yes, provided that it remains stable and the space beneath the downward-firing port is not blocked.
Are spikes included?
Yes. Four threaded floor spikes are supplied.
Can the spikes damage hard flooring?
Yes. Use suitable protective floor cups or an appropriate alternative on wood, laminate, tile and other hard surfaces.
Can I use two K-14 F subwoofers?
Yes. Two can be used for greater output or more even room coverage, provided that the system offers suitable connections and both are set up correctly.
Does it include room correction?
No. Room correction must be provided by a compatible AV receiver, processor or external system.
Does it have app control?
No. Level, crossover, phase and power mode are adjusted manually from the rear panel.
How long does it take to run in?
DALI advises that up to approximately 100 hours of normal playback may be required before full performance is reached.
What are its dimensions?
It measures 448mm high, 396mm wide and 428mm deep.
Why does the existing Audio T page show a different height?
DALI's official technical specification lists the overall height as 448mm. The smaller figure appears to relate to an earlier or incomplete cabinet measurement.
How much does it weigh?
Its net weight is 26.4kg.
Should two people lift it?
Yes. Its weight and dimensions make two-person handling the safer option.
Which finishes are available?
Black Ash and White Silk Matte are available, subject to stock.
Should I choose the K-14 F or E-12 F?
Choose the K-14 F for much greater amplifier power, driver area and maximum output. Choose the E-12 F where smaller dimensions and lower cost are more important.
Should I choose the K-14 F or C-8 D?
Choose the C-8 D for compact systems and small rooms. Choose the K-14 F where deeper scale and substantially higher output are required.
Should I choose the K-14 F or V-16 F?
Choose the K-14 F for a more accessible high-output DALI subwoofer. Consider the V-16 F for a reference home cinema requiring THX Certified Dominus performance.
Why Buy From Audio T?
- Demonstrations with suitable DALI and alternative loudspeakers
- Direct comparison with competing active subwoofers
- Advice choosing between different DALI subwoofer models
- Stereo and home cinema system matching
- Room-size and output guidance
- Subwoofer-positioning advice
- Level, crossover and phase setup
- AV receiver and LFE connection guidance
- Variable stereo line-output checks
- DALI WSR and EQUI system advice
- Dual-subwoofer setup guidance
- Subwoofer cable recommendations
- Floor-protection and isolation advice
- Home demonstrations may be available
- Part exchange may be available on suitable existing equipment
- Ongoing setup and system support
Contact your local Audio T store to arrange a demonstration or discuss matching and setting up the DALI SUB K-14 F in your stereo or home cinema system.