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Eighteensound 15W750 LF Ferrite Transducer Lautsprecher

Artikelnummer: ES15W750

LF Ferrite Transducer

Sofort lieferbar. Lieferzeit: 3 - 5 Tage
  • 97 dB SPL 1W / 1m average sensitivity
  • 75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
  • 1200 W program power handling
  • Long excursion, linear travel suspension design
  • Weather protected cone and plates for outdoor usage
  • Generous low frequency output make it suitable for 2-way systems and subwoofer applications

The 15W750 low frequency transducer meets the specific market demand for a loudspeaker which combines good linearity and efficiency with high power handling capabilities, containing a 75 mm Ø aluminum voice coil. Although primarily intended for use in tuned reflex enclosures, the versatile characteristics of the 15W750 render it suitable for a wide variety of enclosure types, particularly as a subwoofer or as a LF driver in 2 systems. When used in a 2-way system, we recommend a 1.4" or 2" exit compression driver in order to obtain the best sound quality. The deep profile curvilinear paper cone has been made using a special high strength wood pulp and designed to achieve the best possible linearity within its intended frequency range and to control bell-mode resonances around the cone circumference. The cone is carried by an unusually deep profile, triple-roll suspension formed of a linen-like material which is more resistant to aging and fatigue than the traditional cotton-based materials used in conventional surrounds. The 75 mm Ø aluminum voice coil employs the Interleaved Sandwich Voice coil (ISV) technology, 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 magnetic structure has been optimized using our in-house FEA CAD resource that has maximized the flux density in the voice coil gap. Excellent heat dissipation has also been achieved by incorporating air channels between the basket and the magnetic top plate. Due to the increase in use of audio systems at outdoor events, the ability of the 15W750 to perform in adverse weather conditions or in areas of high humidity is a great advantage. This has been achieved using exclusive treatments which enable the cone and the magnetic plate to resist corrosion and render the cone water repellent at the same time.

Nominal Diameter 380 mm (15 in)
Rated Impedance 8 Ohm
AES Power 600 W
Program Power 1200 W
Peak Power 2500 W
Sensitivity 97 dB
Frequency Range 50 ÷ 4300 Hz
Power Compression @-10dB 1,0 dB
Power Compression @-3dB 2,8 dB
Power Compression @Full Power 4,0 dB
Max Recomm. Frequency 1800 Hz
Recomm. Enclosure Volume 80 ÷ 140 lt. (2,82 ÷ 4,95 cuft)
Minimum Impedance 6,1 Ohm at 25°C
Max Peak To Peak Excursion 38 mm (1,50 in)
Voice Coil Diameter 75 mm (3 in)
Voice Coil Winding Material Aluminum
Suspension Triple-roll, Polycotton
Cone Curvilinear, high damping pulp
Thiele Small Parameters
Fs 39 Hz
Re 5,1 Ohm
Sd 0,091 sq.mt. (141,05 sq.in.)
Qms 9,34
Qes 0,39
Qts 0,37
Vas 218 lt. (7,70 cuft)
Mms 88 gr. (0,19 lb)
BL 17,6 Tm
Linear Mathematical Xmax ± 8 mm (± 0,31 in)
Le (1kHz) 1,10 mH
Ref. Efficiency 1W@1m (half space) 97,2 dB
Mounting information
Overall diameter 393 mm (15,47 in)
N. of mounting holes and bolt 8
Mounting holes diameter 7,15 mm (0,28 in)
Bolt circle diameter 371 mm (14,6 in)
Front mount baffle cutout ø 354 mm (13,94 in)
Rear mount baffle cutout ø 357 mm (14,06 in)
Total depth 184,5 mm (7,26 in)
Flange and gasket thickness 13,5 mm (0,53 in)
Net weight 7,6 kg (16,7 lb)
Shipping weight 9 kg (19,84 lb)
CardBoard Packaging dimensions 405 x 405 x 252 mm (15,94 x 15,94 x 9.92 in)

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