18 Sound 15MB700 Mid-Bass Speaker Key features 103 dB SPL 1W / 1m average sensitivity 75 mm (3 in) Interleaved Sandwich Voice coil (ISV) 400 W continuous pink noise power handling Excellent transient response Additional cone damping treatment Ideal for compact two way, multiway and horn designsystems Improved heat dissipation via unique basket design Description ?The 15MB700 high output mid bass demonstrates exceptional efficiency and is primarily intended for 2-way very compact reflex systems (75 lt.), 3-way systems and horn loaded applications. It combines high sensitivity (103 dB 1W/1m) with a high power handling capability. The smooth textured curvilinear paper cone, in conjunction with the viscose dampened multiroll suspension, provides excellent cone dampening and excursion control. The 75 mm ? state-of-the-art voice coil features the same technology fitted to our top-of-the-range 4” voice-coil models. It employs our Interleaved Sandwich Voice coil (ISV), in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a mass balanced coil. This results in an extremely linear motor assembly with a reduced tendency for eccentric behavior when driven hard. The low coil inductance results in an improved transient response. Excellent heat dissipation has been achieved by incorporating air channels into the basket design, between the basket and the top plate. Maximum flux concentration and force factor in the gap are assured by the unique shape and design of the top and back plates which have been designed using our in-house Magnetic Flux FEA CAD resource. Due to the increasing use of audio systems at outdoor events, the ability to perform in adverse weather conditions or in high-humidity areas is a key feature of the 15MB700. This has been achieved using exclusive cone and magnetic plate treatment processes which allow the speaker to resist corrosion and render the cone water repellent. GENERAL SPECIFICATIONS ? Nominal Diameter 380 mm (15 in) Rated Impedance 8 Ohm Continuous Pink Noise? 400 W Continuous Power? 300 W Program Power? 600 W Peak Power? 1200 W Sensitivity? 103 dB Frequency Range? 45 ? 4300 Hz Power Compression @-10dB? (30 W) 0,6 dB Power Compression @-3dB (150 W) 2,0 dB Power Compression @Full Power (300 W) 3,3 dB Max Recomm. Frequency 3000 Hz Recomm. Enclosure Volume 75 ? 130 lt. (2,65 ? 4,6 cuft) Minimum Impedance 5,9 Ohm at 25?C Max Peak To Peak Excursion 23 mm (0,88 in) Voice Coil Diameter 75 mm (2,95 in) Voice Coil Winding Material aluminum Polarity positive voltage on red terminal gives forward cone motion THIELE SMALL PARAMETERS ? Fs 42 Hz Re 5 Ohm Sd 0,085 sq.mt. (131,75 sq.in.) Qms 4,6 Qes 0,31 Qts 0,29 Vas 202 lt. (7,14 cuft) Mms 73 gr. (0,16 lb) BL 17,6 Tm Linear Mathematical Xmax? ? 5,5 mm (? 0,22 in) Le (1kHz) 1,2 mH Ref. Efficiency 1W@1m (half space) 98,9 dB MOUNTING INFORMATIONS ? Overall diameter 387 mm (15,23 in) N. of mounting holes 8 Mounting holes diameter 7,15 mm (0,28 in) Bolt circle diameter 370 - 371 mm (14,55 - 14,6 in) Front mount baffle cutout ? 353 mm (13,90 in) Rear mount baffle cutout ? 357 mm (14,06 in) Total depth 167,5 mm (6,59 in) Flange and gasket thickness 19,5 mm (0,76 in) Net weight 8,3 kg (18,3 lb) Shipping weight 9,4 kg (20,75 lb) CardBoard Packaging dimensions 405 x 405 x 214 mm (15,94 x 15,94 x 8,43 in)
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