[. . . ] SPL 1 m (calculated with peak power) Frequency Range (-10 dB) Nominal Coverage Angle (Horizontal x Vertical) X-Over Frequency LF Transducer HF Transducer Connectors 103 dB 139 dB 55 Hz to 15 kHz 60° x 40° (or 40° x 60°) 1750 Hz 2x SMX2151, 15 `` (381 mm) Driver ND2-8, 2 `` (51 mm) Diaphragm Compression Driver 2x Neutrik Speakon NL4 Full-Range 1+ / 1Wired through 2+ / 2445 mm x 1130 mm x 445 mm (17. [. . . ] In the low frequency range, two SMX 2151 woofers are used, whilst in the high frequency range, an ND2-8 neodymium compression driver in a rotatable 60° x 40° constant directivity horn covers the frequencies above 1750 Hz. The crossover is implemented using a sixth order filter with a very steep roll-off. Flying points for eybolts allow the cabinet to be suspended either vertically or horizontally. as the ideal companion for a very powerful active two-way system , the double 18" subwoofer Sub 2. 18 is recommended together with the DSP 260 or DSP 600 controllers and power amplifers from the SL or LX series. Suitable presets for both controllers are available, as well as a FIR-TUNE preset for the DSP 600. [. . . ] For customer orders, contact Customer Service at: +65 6571 2534 Fax: +65 6571 2699 For technical assistance, contact Technical Support at: +49 9421-706 0 Specifications subject to change without notice. [. . . ]