Eighteensound 18TLW3000 18inch Lautsprecher Chassis 8 Ohm

Eighteensound 18TLW3000 18inch Lautsprecher Chassis 8 Ohm

ES18TLW3000

• 95 dB SPL 1W / 1m average sensitivity
• 3600 W program power handling
• 100 mm (4 in) Tetracoil dual voice coil, equivalent to a single coil diameter larger than 152 mm (> 6 in)
• Ultra linear suspension behavior for excellent sound clarity
• Symmetric flux density and inductance behaviour
• Low noise forced air cooling design
• Water repellent cone and epoxy coated plates for outdoor use
• Suitable for vented, horn loaded and bandpass subwoofer design

The 18TLW3000 is an 18 inch diameter high performance subwoofer, specifically designed for high SPL subwoofer applications in either a reflex, bandpass or horn loaded configuration. For optimum results we recommend the usage of power amplifiers able to deliver 3600W program power without clipping18TLW3000 uses Eighteen Sound proprietary Tetracoil technology, where two different, axially separated magnetic gaps and two inside-outside 4" diameter voice coils are wound on the same former and suspended evenly in the two magnetic gaps.The Tetracoil design key advantages are:1) a symmetric flux density versus displacement behavior, that minimizes the even distortion products;2) a very symmetric and flat inductance curve;3) the equivalent voice coil diameter of a 4" Tetracoil speaker is greater than 6". Consequently heat dissipation occurs over a larger surface area, driving AES power handling up to 1800 W.18TLW3000 design features include a large displacement suspension system which, in conjunction with a fiberglass reinforced, straight ribbed cone allows an ultra-linear piston action and provides full mechanical control across the entire working range.In order to furtherly increase power handling and reduce power compression figure, a low density material air diffractor is placed into the backplate venting hole acting as a cooling system, increasing power handling capability and lowering the power compression figure.18TLW3000 is able to perform properly under inclement weather conditions: the exclusive cone treatment improves pulp strength and gives water repellent properties to both sides of the membrane. In addition, magnetic structure metal plates coating is far more resistant than standard zinc coating to the corrosive effects of salts and oxidization.

Nominal Diameter	460 mm
Nominal Impedance	8 Ohm
Minimum Impedance	5,7 Ohm
Nominal Power Handling1	1800 W
Continuous Power Handling2	3600 W
Sensitivity3	95,0 dB
Frequency Range	30 - 2000 Hz
Voice Coil Diameter	100 mm
Winding Material	copper
Surround Shape	Triple roll
Cone Shape	Curvilinear
Magnet Material	Ferrite
Woofer Cone Treatment	Water,UV repellent
Recommended Enclosure	180,0 dm3
Recommended Tuning	35 Hz
Resonance Frequency	33 Hz
Re	4,6 Ohm
Qes	0,42
Qms	13,0
Qts	0,41
Vas	185,0 dm3
Sd	1225,0 cm2
Xmax	12,0 mm
Mms	266,0 g
Bl	24,5 Txm
Le	1,8 mH
EBP	78 Hz
Overall Diameter	462 mm
Bolt Circle Diameter	438 mm
Baffle Cutout Diameter	416,0 mm
Depth	275 mm
Flange and Gasket Thickness	24 mm
Net Weight	13,2 kg
Shipping Weight	14,6 kg
Shipping Box	482 x 482 x 257 mm