Eighteensound 21NTLW5000 21inch Lautsprecher Chassis 8 Ohm

Artikelnummer: ES21NTLW5000

21NTLW5000 ist ein Hochleistungs-Subwoofer Tetracoil Double Voice Coil Technologie

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Mengenstaffelpreise
Von 2 Stück 899,19 €
Von 4 Stück 880,65 €
Von 8 Stück 871,38 €
Von 14 Stück 852,84 €
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Eighteensound 21NTLW5000 21inch Lautsprecher Chassis 8 Ohm


ES21NTLW5000

  • 96,5 dB SPL 1W / 1m average sensitivity
  • Dual 115mm (4,5 in) Tetracoil Aluminum Voice coil
  • 4000 W program power handling
  • 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
  • Suitable for vented, horn loaded and bandpass applications

The 21NTLW5000 is a 21 inch diameter next generation high performance subwoofer, specifically designed for high SPL very low frequency applications in either a reflex, bandpass or horn loaded configuration. For optimum results we recommend the usage of power amplifiers able to deliver 4000W program power without clipping.The 21NTLW5000 uses Eighteen Sound proprietary Tetracoil technology, where two different, axially separated magnetic gaps and two inside-outside 4.5" diameter aluminum 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 4.6" Tetracoil speaker is greater than 6". Consequently heat dissipation occurs over a larger surface area, driving AES power handling up to 1800 W.21NTLW5000 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.21NTLW5000 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 Diameter533 mm
Nominal Impedance8 Ohm
Minimum Impedance6,8 Ohm
Nominal Power Handling11800 W
Continuous Power Handling24000 W
Sensitivity397,0 dB
Frequency Range30 - 1800 Hz
Voice Coil Diameter115 mm
Magnet MaterialNeo
Recommended Enclosure200,0 dm3
Recommended Tuning33 Hz
Resonance Frequency31 Hz
Re5,3 Ohm
Qes0,38
Qms5,2
Qts0,36
Vas270,0 dm3
Sd1662,0 cm2
Xmax17,5 mm
Mms372,0 g
Bl32,0 Txm
Le1,6 mH
EBP81 Hz
Overall Diameter545 mm
Bolt Circle Diameter520 mm
Baffle Cutout Diameter492,0 mm
Depth320 mm
Flange and Gasket Thickness18 mm
Net Weight12,5 kg
Shipping Weight13,5 kg
Shipping Box570x570x350 mm
Versandkarton
570x570x350 mm (22.44x22.44x13.78 in)
Magnet
Neo
Außendurchmesser
545 mm (21.46 in)
Schallwandausschnitt
492.0 mm (19.37 in)
BL
32.0 Txm
Tuning Frequenz
33 Hz
MInimale Impedanz
6.8 Ω
Nominaler Durchmesser
533 mm ( in)
Resonanz Frequenz
31 Hz
Recommended Enclosure
200.0 dm3 (7.06 ft3)
Mms
372.0 g
Schwingspulendurchmesser
115 mm (4.5 in)
Vas
270.0
Frequenzbereich
30 - 1800 Hz
Dauerbelastbarkeit
4000 W
Sd
1662.0 cm2 (257.61 in2)
Versandgewicht
13.5 kg (29.76 lb)
Xmax
17.5 mm
Einbautiefe
320 mm (12.6 in)
Nominale Impedanz
8 Ω
Le
1.6 mH
Re
5.3 Ω
Qts
0.36
Flange and Gasket Thickness
18 mm (0.71 in)
Qes
0.38
Empfindlichkeit
97.0 dB
Netto Gewicht
12.5 kg
Nominale Belastbarkeit
1800 W
EBP
81 Hz
Lochkreisdurchmesser
520 mm (20.47 in)
Qms
5.2

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