155,78 €
In den Warenkorb
Eighteensound 8NMB420 8inch Lautsprecher Chassis 4 Ohm
ES8NMB420-4
- 95 dB SPL 1W / 1m average sensitivity
- 51mm (2 in) Interleaved Sandwich Voice coil (ISV)
- 280 W AES power handling
- External neodymium magnet assembly
- Single Demodulating Ring (SDR) for lower distortion
- Weather protected cone and plates for outdoor usage
- Suitable for line arrays and compact two way systems
The 8NMB420 neodymium transducer has been developed in response to a specific market requirement for a 8" midbass driver that combines excellent linearity with good efficiency and high power handling capabilities. 8NMB420 is primarily intended for use as a midbass driver in compact 2-way or multiway reflex enclosures comprising line arrays. The parameters had been chosen to offer significant low frequency output in vented enclosure with size starting from 20 lit. with a tuning frequency around 60Hz. The low pass filter might be positioned as high as 2000-2500Hz. Multiple 8NMB420 units might be used: the compact size reflects in the capability to have precise attack time. This characteristic makes it the ideal choice for stage monitoring and bass guitar amplification. The extremely powerful external neodymium magnet assembly assures high flux concentration, low power compression and excellent heat exchange. The levels of force factor and power handling are, as a consequence, at the upper professional level with best power to weight ratio. The exclusive dedicated double roll surround design offers enhanced linear travel and control, in order to reproduce precisely low frequency. The curvilinear paper cone is formed using a unique wood pulp composition designed to achieve the best possible rigidity and stiffness. The 50mm inside outside aluminum voice coil employs Interleaved Sandwich Voice coil (ISV) technology. It is composed by a high strength fiberglass former used to carry windings on both the outer and inner surfaces to achieve a mass balanced coil. This results in an extremely linear motor assembly which, in conjunction with the highly advanced design of the magnetic structure, provides a high force factor or BL. The voice coil is cooled incorporating airways between the chassis back plate and the magnet faceplate so that heated air is channeled away from the voice coil and gap and dissipated by the chassis basket. Thanks to the increasing use during outdoor audio events, the ability to perform in humid environments is a key feature of the 8NMB420. This is achieved trough a proprietary humidity repellent cone treatment without a moving speaker mass increase.
| Nominal Diameter | 200 mm |
| Nominal Impedance | 4 Ohm |
| Minimum Impedance | 3,2 Ohm |
| Nominal Power Handling1 | 280 W |
| Continuous Power Handling2 | 400 W |
| Sensitivity3 | 95,0 dB |
| Frequency Range | 60 - 5500 Hz |
| Voice Coil Diameter | 51 mm |
| Surround Shape | M-roll |
| Cone Shape | Curvilinear |
| Woofer Cone Treatment | Weather protected |
| Recommended Enclosure | 20,0 dm3 |
| Recommended Tuning | 67 Hz |
| Resonance Frequency | 59 Hz |
| Re | 2,6 Ohm |
| Qes | 0,34 |
| Qms | 3,81 |
| Qts | 0,31 |
| Vas | 31,0 dm3 |
| Sd | 227,0 cm2 |
| Xmax | 5,8 mm |
| Mms | 16,9 g |
| Bl | 7,0 Txm |
| Le | 0,27 mH |
| EBP | 173 Hz |
| Overall Diameter | 210 mm |
| Bolt Circle Diameter | 195 mm |
| Baffle Cutout Diameter | 186,0 mm |
| Depth | 99 mm |
| Flange and Gasket Thickness | 14 mm |
| Net Weight | 1,7 kg |
| Shipping Weight | 2,0 kg |
| Shipping Box | 235 x 235 x 150 mm |
Herstellerinformation
| Marke | Eighteensound |
|---|---|
| Hersteller | Eighteen Sound SRL |
| info@eighteensound.it | |
| Telefon | (+39) 0522 1861800 |
| Anschrift | Via Botticelli 8 1 - Loc. Vallina, 42124 Mancasale (Reggio Emilia), Italien |
| Qts | 0.3121 |
|---|---|
| Verkaufsrang | 142 |
| BL (Tm) | 7.0 |
| Qes | 0.34 |
| Qms | 3.81 |
| Vas (l) | 31.0 |
| Xmax (mm) | 5.8 |
| Fs (Hz) | 59 |
| Empfindlichkeit (dB) | 95.0 |
| Re (Ohm) | 2.6 |
| Sd (m²) | 0.0227 |
| Mms (g) | 16.9 |
| Le (mH) | 0.27 |
| Frequenzbereich | 60 - 5500 Hz |
| Außendurchmesser | 210 mm (8.27 in) |
| Versandkarton | 235 x 235 x 150 mm (9,25 x 9,25 x 5,91 in) mm (9.25x9.25x5.91x0.35x0.20 in) |
| Lochkreisdurchmesser | 195 mm (7.68 in) |
| Einbautiefe | 99 mm (3.9 in) |
| Flange and Gasket Thickness | 14 mm (0.55 in) |
| Schallwandausschnitt | 186.0 mm (7.32 in) |
| Cone Shape | Curvilinear |
| Surround Shape | M-roll |
| Schwingspulendurchmesser | 51 mm (2.0 in) |
| EBP | 173 Hz |
| Recommended Enclosure | 20.0 dm3 (0.71 ft3) |
| MInimale Impedanz | 3.2 Ω |
| Versandgewicht | 2.0 kg (4.41 lb) |
| Tuning Frequenz | 67 Hz |
| Woofer Cone Treatment | Weather protected |
| Dauerbelastbarkeit | 400 W |
| Nominaler Durchmesser | 200 mm ( in) |
| Nominale Impedanz | 4 Ω |
| Nominale Belastbarkeit | 280 W |
| Netto Gewicht | 1.7 kg |
Wir informieren Sie gern darüber, falls der Preis dieses Artikels Ihrem Wunschpreis entspricht.
Artikel bewerten
Es liegen keine Bewertungen zu diesem Artikel vor.