DALI SUB E-12 F TECHNICAL WHITE PAPER
DALI SUB E-12 F INTRODUCTION Developing a DALI subwoofer involves the same meticulous attention to detail as you will find in the development of a DALI speaker. Our R&D team consistently strive to generate the most natural, yet entertaining, sound – at any price point. That goes for the DALI SUB E-12 F as well. Today a subwoofer is considered a natural part of any multi-channel sound system, and in many stereo systems as well.
Frequency Response 120.0 dBSPL 110.0 100.0 90.0 80.0 70.0 LFE Maximum cut-off frequency Medium cut-off frequency Minimum cut-off frequency SUB E-12 F frequency response at different low-pass values. ACOUSTIC BACKGROUND Unlike many subwoofers in the market the DALI SUB E-12 F has been engineered to perform equally well on both music and movies. It is important to us that a subwoofer is capable of rendering a performance true to the input signal.
Frequency Response 100.0 dBSPL 90.0 80.0 70.0 60.0 50.0 DALI ZENSOR 1 and DALI E-12 F DALI E-12 F DALI ZENSOR 1 The DALI SUB E-12 F clearly has its heart set on high fidelity. Properly set up it has a superior ability to integrate with the front speakers providing more than just an extension of the low frequency range.
Any risk of port noise derived from the down-firing bass vent itself is seriously reduced by its convex tapered design. Apart from the shape of the flares the vent has also undergone extensive testing, measuring and listening when it comes to dimensions and placement, in order to optimize interaction with the cabinet and woofer. CABINET Built on almost 30 years of knowledge in acoustics and cabinets, the solid MDF cabinet abides the tough DALI specifications.
WOOFER The DALI SUB E-12 F incorporates a large woofer with aluminium cone. This stiff, yet lightweight, material was chosen to ensure a greater transient response as 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. This goes for smaller front speakers as well. Designed to be a closed cone you will find no dust cap.
The woofer for the SUB E-12 F was developed from scratch by DALI’s acoustic engineers. The voice coil is 26.5 mm long, and built for long excursions. It is vented to ensure aircooling to the system, and the coil itself. Venting this 4-layer voice coil keeps the temperature down, and the benefit is a stable impedance response. Also the pole piece is vented for maximum cooling. Here the venting has another purpose too; it reduces internal compression in the motor 8 system.
The high-efficiency amplifier needs no external heat sink. AMPLIFIER The integrated 170 Watt RMS Class D amplifier is a highly linear construction. The DALI SUB E-12 F will follow and render the required signal with an absolute minimum of bias. Designed not only for continuous power, but also for peak power, this subwoofer is able to deliver 220 Watt Peak Power. This is very relevant when it comes to both movie and music signals.
OFF Neodymium magnets are applied to invisibly attach the elegant front grille. APPLICATION STANDBY The front grille is held in place by concealed magnets, making it easy to remove it from the baffle. With the grille fitted the subwoofer discreetly blends into most domestic environments with its stylish High Gloss Black front baffle. Removing the grille reveals the impressive woofer with a laser-engraved DALI logo.
TABLE 2 - DALI SUB E-12 F TECHNICAL SPECIFICATIONS DALI SUB E-12 F Frequency Range [+/- 3] dB [Hz] 28 - 190 Input Impedance [kohm] 25 Maximum SPL [dB] 112 Crossover Frequencies [Hz] 40 - 120 Low Frequency Driver(s) 1 x 12” long stroke Enclosure Type Bass reflex Bass Reflex Tuning Frequency [Hz] Connection Input(s) 36.0 RCA, Stereo (low-pass filtered) LFE (Mono) Recommended Placement Floor, near wall or corner Magnetic Shielding No Max.
Designed and Manufactured in Denmark | www.dali-speakers.
