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Alternative/Current Model:
10NMBA520

Features

  • 103 dB SPL 1W / 1m average sensitivity (AIC on)
  • 75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
  • 400 W AES power handling
  • Neodymium motor assembly
  • A.I.C. (Active Impedance Control) technology
  • Very shallow profile, 90 mm (3,5 in) total depth
  • Humidity resistant cone and plates
  • Suitable for high quality, very high SPL midrange frequency reproduction
The 10NDA610 is a high power, very high output, state-of-the-art midrange transducer for high quality professional use. The high level of sound reproduction is achieved thanks to extensive research by Eighteen Sound engineers, which focused on implementing mid frequencies intelligibility. The 10NDA610 is ideally used as a midrange in both horn and direct radiation, closed or reflex enclosures, as small as 4 liters. The 10NDA610 incorporates an Active Impedance Control (A.I.C.) consisting of an additional coil fixed on the pole piece and connected in parallel to the moving coil. The magnetic field generated by this coil has the following effects: 1) Impedance linearization 2) Acoustic and electric phase linearization 3) Significant increase of sensitivity and total SPL 4) Total harmonic distortion reduction 5) Constant power transfer The A.I.C. offers substantial advantages to the sound quality by not absorbing the moving coil's electromagnetic energy. 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 consequently at a top professional level, with the best power to weight ratio on the market today. The curvilinear cone, made with a high damping wood pulp, has been designed to achieve the best possible linearity within its frequency range. The in-house developed cone treatment acts as humidity repellent and significantly dampens bell mode resonances. The 75mm edge-wound voice coil assembly is wound on a strong fiberglas former to improve force transmission and power handling. A proprietary humidity-block cone treatment makes the transducer suitable for outdoor use in adverse weather conditions. In addition, a special coating applied to both the top and back plates makes the 10NDA610 far more resistant to the corrosive effects of salts and oxidization.

Specifications

Design

Parameters

Mounting and Shipping Info

  • Nominal Diameter260 mm ( in)
  • Nominal Impedance8 Ω
  • Minimum Impedance6.5 Ω
  • Nominal Power Handling1400 W
  • Continuous Power Handling2600 W
  • Sensitivity3103.0 dB
  • Frequency Range100 - 6100 Hz
  • Voice Coil Diameter75 mm (3.0 in)
  • Winding Materialaluminum
  • Surround ShapeDouble roll
  • Cone ShapeCurvilinear
  • Magnet MaterialNeo
  • Woofer Cone TreatmentWeather protected
  • Recommended Enclosure10.0 dm3 (0.35 ft3)
  • Recommended Tuning90 Hz
  • Resonance Frequency89 Hz
  • Re5.5 Ω
  • Qes0.24
  • Qms7.1
  • Qts0.23
  • Vas18.0 dm3 (0.64 ft3)
  • Sd350.0 cm2 (54.25 in2)
  • Xmax2.5 mm
  • Mms30.0 g
  • Bl20.3 Txm
  • Le0.06 mH
  • EBP370 Hz
  • Overall Diameter260 mm (10.24 in)
  • Bolt Circle Diameter275 mm (10.83 in)
  • Baffle Cutout Diameter232.0 mm (9.13 in)
  • Depth96 mm (3.78 in)
  • Flange and Gasket Thickness14 mm (0.55 in)
  • Net Weight3.5 kg (7.72 lb)
  • Shipping Weight3.9 kg (8.6 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.