DALI sub K-14 F WhitePaper
INTRODUCTION At DALI we love movies just as much as we love music. We live for the passage in the movie where the bass filled score drives us to the edge of the seat, the deep precise boom of a gunshot report or the low rumbling of the truck driving between high buildings. To bring these scenes to life the bass sound has to be impressive, but more importantly, realistic.
Cabinet Any risk of port noise derived from the down-firing bass vent itself is seriously reduced by its convex tapered design. The vent has undergone extensive testing, measuring and listening when it comes to dimensions and placement, in order to optimize interaction with the cabinet and woofer. Cleverly designed, the SUB K-14 F is a big subwoofer, but with a non intrusive design.
Woofer One of the inherent abilities of pure aluminium is an extreme rigidity, measuring a Young’s modulus of 69 GPa. In comparison the typical paper cone material measures 4 GPa. 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.
Carefully designed by DALI the 14” woofer is optimized to work perfectly within the cabinet and together with the amplifier to deliver punchy, but well timed bass. 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.
Amplifier 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.
Application OPTICON 2 K-14 F SUM Integrating perfectly with the front speakers the SUB K-14 F extends the natural performance of the speaker downwards adding nothing but bass. DALI SUB K-14 F is designed to deliver big and powerful bass. This makes it a perfect companion for any surround setup. The precision and power enables it to accompany everything from a ZENSOR setup, OPTICON, or even up to a RUBICON setup, no matter if they are configured for stereo or surround sound.
DALI SUB K-14 F Frequency Range [+/- 3] dB [Hz] 29 - 160 Input Impedance [kohm] 10 Maximum SPL [dB] 115 Crossover Frequencies [Hz] 40 – 120 ( variable low-pass ) Low Frequency Driver(s) 1 x 14” long stroke Enclosure Type Bass reflex Bass Reflex Tuning Frequency [Hz] 34 Connection Input(s) RCA Stereo, (low-pass filtered) LFE (Mono) Recommended Placement Floor, near wall or corner Magnetic Shielding No Max.
