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    10nmb420
    Alternative/Current Model:
    10NW650

    Features

    • 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.

    Specifications

    Design

    Parameters

    Mounting and Shipping Info

    • Nominal Diameter260 mm ( in)
    • Nominal Impedance16 Ω
    • Minimum Impedance11.9 Ω
    • Nominal Power Handling1350 W
    • Continuous Power Handling2500 W
    • Sensitivity399.0 dB
    • Frequency Range65 - 5000 Hz
    • Voice Coil Diameter65 mm (2.5 in)
    • Winding Materialaluminum
    • Surround ShapeM-roll
    • Cone ShapeCurvilinear
    • Magnet MaterialNeo
    • Woofer Cone TreatmentWeather protected
    • Recommended Enclosure25.0 dm3 (0.88 ft3)
    • Recommended Tuning70 Hz
    • Resonance Frequency65 Hz
    • Re10.5 Ω
    • Qes0.36
    • Qms4.6
    • Qts0.33
    • Vas30.0 dm3 ( ft3)
    • Sd346.0 cm2 (53.63 in2)
    • Xmax4.0 mm
    • Mms31.5 g
    • Bl19.5 Txm
    • Le0.4 mH
    • EBP180 Hz
    • Overall Diameter260 mm (10.24 in)
    • Bolt Circle Diameter244 mm (9.61 in)
    • Baffle Cutout Diameter232.0 mm (9.13 in)
    • Depth122 mm (4.8 in)
    • Flange and Gasket Thickness11 mm (0.43 in)
    • Net Weight3.0 kg (6.61 lb)
    • Shipping Weight3.4 kg (7.5 lb)
    • Shipping Box275 x 275 x 164 mm (10.83x10.83x6.46 in)
    • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated nominal impedance. Loudspeaker in free air.
    • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
    • Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.