Eighteensound 10NMB420 10inch Lautsprecher Chassis 16 Ohm

Eighteensound 10NMB420 10inch Lautsprecher Chassis 16 Ohm

ES10NMB420-16

• 99 dB SPL 1W / 1m average sensitivity
• 65 mm (2.5 in) Interleaved Sandwich Voice coil (ISV)
• 350 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 10NMB420 neodymium transducer has been developed in response to a specific market requirement for a 10" midbass driver that combines excellent linearity with good efficiency and high power handling capabilities. The 10NMB420 is primarily intended for use as a midbass driver in line-arrays as well as high quality 2-way or multiway reflex enclosures. The low pass filter might be positioned as high as 2000Hz. 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 65mm Ø state-of-the-art, aluminum wire voice coil employs Interleaved Sandwich Voice coil (ISV) technology. It is composed by a high strength fiberglas former used to carry windings on both the outer and inner surfaces, in order 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 BL force factor. The voice coil is cooled through airways placed between the chassis back plate and the magnet faceplate. In this way heated air is channeled away from the voice coil and the gap. Another technology present into the 10NMB420 is the SDR (Single Demodulating Ring), used to reproduce instantaneous peak on mid frequencies, reducing intermodulation distortion. Thanks to the increasing use during outdoor audio events, the ability to perform in humid environments is an extra key feature of the 10NMB420. This is achieved trough an exclusively developed cone treatment which renders the cone humidity repellent while does not increasing the total moving speaker mass.

Nominal Diameter	260 mm
Nominal Impedance	16 Ohm
Minimum Impedance	11,9 Ohm
Nominal Power Handling1	350 W
Continuous Power Handling2	500 W
Sensitivity3	99,0 dB
Frequency Range	65 - 5000 Hz
Voice Coil Diameter	65 mm
Winding Material	aluminum
Surround Shape	M-roll
Cone Shape	Curvilinear
Magnet Material	Neo
Woofer Cone Treatment	Weather protected
Recommended Enclosure	25,0 dm3
Recommended Tuning	70 Hz
Resonance Frequency	65 Hz
Re	10,5 Ohm
Qes	0,36
Qms	4,6
Qts	0,33
Vas	30,0 dm3
Sd	346,0 cm2
Xmax	4,0 mm
Mms	31,5 g
Bl	19,5 Txm
Le	0,4 mH
EBP	180 Hz
Overall Diameter	260 mm
Bolt Circle Diameter	244 mm
Baffle Cutout Diameter	232,0 mm
Depth	122 mm
Flange and Gasket Thickness	11 mm
Net Weight	3,0 kg
Shipping Weight	3,4 kg
Shipping Box	275 x 275 x 164 mm