Dali Sub K-14F Black Subwoofer
Whether the task is to fill the room with stereo music or to feel the subtle tremor from a movie soundtrack the new DALI SUB K-14 F will deliver!
Build around a 14” aluminium long stroke woofer and with a 500 watts class D amplifier the DALI SUB K-14 F has the power and the control for both impressive movie- and delightful music reproduction. Connect the sub to your amplifier through LFE or line-out, and prepare to be pushed down in your seat.
Find other DALI Subwoofers or take a look at our loudspeaker series.
Features of the SUB K-14 F
14” aluminium long stroke woofer
500 watts class D amplifier
Solid aluminium base
White or black cabinet
High gloss white or black front baffle
Combination of use:
DALI recommends applying this subwoofer with for example RUBICON, OPTICON and ZENSOR systems. However, customer with speakers from other brands will surely find what they need in this sub.
RIGID CONE STRUCTURE
The rigid cone structure based on either aluminium or cone fiber eliminates the need for a dust-cap and helps ensure a piston-like behaviour of the woofer.
All amplifiers in DALI subwoofers have the stamina to keep a high-yield performance and the headroom to draw out that little extra when needed.
All DALI subwoofers are compatible with almost any amplifier, receiver or processor due to the choice of LFE or LINE inputs.
ELEGANT AND SIMPLE DESIGN
The cabinet is designed to fit perfectly to the size of the woofer, but without forgoing the inner volume that is needed to produce a powerful bass performance.
Making sure there is enough power to move the large woofer, the 450 watts RMS integrated amplifier has the stamina to keep pushing and the headroom to draw out that little extra when needed. Constructed for lasting effect, it is powered by a switch mode power supply (SWPS) that helps keep the module at a low working temperature. For that reason there is no external heat sink on the SUB K-14 F.
Knowing that the SUB K-14 F will find itself working for hours on end, we wanted to secure the amplifier against overheating. The built in PTC ensures that even if the SUB K-14 F should become overheated, it will automatically shut down until the temperature is back at operating level and then turn back on.
The Class-D amplifier takes an analogue signal, and with an eye on performance and to keep the signal clear and undistorted, an analogue filter is applied. This filter is tuned to maximize the use of the woofer and thereby the output from the SUB K-14 F. To improve sound reproduction and to avoid excessive distortion at extreme output sound pressure levels, a power limiter has been incorporated in the amplifier signal path.
The integrated limiter works by constantly comparing the incoming audio signal to a threshold defining the maximum amplifier output power. If the incoming signal, at a certain volume setting, is about to exceed the maximum amplifier output power the level is automatically limited without introducing audible level differences or pumping artefacts. This is done to avoid clipping of the audio signal that will cause distortion and to prevent the amplifier from being damaged. The limiter is only functional at extreme sound pressure levels.
Fitted with controls for gain, cut-off frequency, and phase, the DALI SUB K-14 F will adapt to most front speaker and room acoustics. And, with a choice of LFE and LINE level inputs, it can be connected to almost any amplifier, receiver or processor.
The SUB K-14 F incorporates a 14” woofer with a deep black coloured aluminium cone. Chosen for its stiff, yet lightweight properties, the aluminium cone ensures a greater transient response than you would normally expect from a subwoofer in this category. Very much in line with DALI’s philosophy in building speakers, the ability to start and stop very quickly enables easy integration with the front speakers.
Designed to be a closed cone you will find no dust cap. Instead it is an integrated part of the cone itself. This is also a contributing factor in ensuring a piston-like behaviour. Consequently, distortion is kept to an absolute minimum – especially in the low frequency area which is where the subwoofer operates.
The motor of the woofer is built around an ‘oversized’ ferrite magnet, and optimised for maximum flux within the voice coil gap. This carefully designed magnet system enabled the project team to reach a high B/L product to enable the SUB K-14 F to render the finer low frequency details of music, but also at a higher sound pressure level. The measured BxL value of 17 N/A is a good indication of the level of control and precision that was reached, and rarely to be found in this category at all. Numerous listening sessions has truly convinced us that this was indeed the right way to go.
The 30 mm long, 4 layer voice coil is built for long excursions. It is vented to ensure air cooling to the system and to the coil itself, keeping the temperature down, which creates a stable bass response.
Also, the pole piece is vented for maximum cooling. The venting here has another purpose though; it reduces internal compression in the motor system, which ensures free movement of the cone without any over-/underpressure affecting the performance.
Adhering to the low-loss sound design principle, the surround of the woofer is built to allow long and linear excursion. The oversized suspension is designed to allow both weak and strong transients to turn into undistorted acoustic signals.
DALI SUB K-14 F SPECS
Product series SUBWOOFERS
Frequency Range (+/-3 dB) [Hz] 29 - 160
Maximum SPL [dB] 115
Crossover Frequency [Hz] 40 - 120
Low frequency driver, Quantity 1 x 14" long stroke
Low frequency driver, Diaphragm type Aluminium
Enclosure type Bass Reflex
Bass Reflex Tuning Frequency [Hz] 34
Max. Amplifier Power Output [RMS watt] 500
Continous IEC Power Output [RMS watt] 450
Input Impedance [ohms] 10k
Connection Input Mono (LFE)
Stereo (low-pass filtered)
Magnetic Shielding No
Recommended Placement Floor
Functions Crossover Frequency
Standby (Auto Power) On/Off Switch
Max. Power Consumption [W] 650
Dimensions With Base (HxWxD) [mm] 429 x 396 x 428
Accessories Included Manual
Weight [kg] 26.4