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16_30_32_895_8nsm64_0116_30_33_625_8_nsm_64_03_16_30_33_430_8nsm64_00
Continuous power handling
Voice coil diameter
Magnet material
For simplified cabinet assembly and efficient thermal transfer to the air, our NSM series of sealed back midranges feature a cast aluminum sealed chassis, high strength neodymium motor, and large internal volume for good low frequency performance. Large voice coils provide power handling, while careful selection of suspension and cone components results in exceptional sensitivity. These dedicated narrow-bandwidth midranges offer the lowest distortion at given output of any midrange available. 

Available exclusively with 6.3+4.8 mm fast-on terminal tab
 
 
 

Features

  • 500 W continuous program power capacity
  • 64 mm (2.5 in) aluminium voice coil
  • 245 - 2000 Hz response
  • 100 dB sensitivity
  • Ideal for Direct Radiation and Horn Loaded Midrange application

Specifications

  • Nominal Diameter200 mm (8.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance8.2 Ω
  • Nominal Power Handling1250 W
  • Continuous power handling2500 W
  • Sensitivity (1W/1m)3100.0 dB
  • Frequency Range245 - 2000 Hz
  • Voice Coil Diameter64 mm (2.5 in)
  • Winding MaterialAluminium
  • Former MaterialGlass Fibre
  • Winding Depth13.0 mm (0.51 in)
  • Magnetic Gap Depth10.0 mm (0.39 in)
  • Flux Density1.55 T

Design

  • Surround ShapeDouble Roll
  • Cone ShapeRadial
  • Magnet MaterialNeodymium Ring
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentWP Waterproof Front Side

Parameters4

  • Resonance Frequency245 Hz
  • Re5.7 Ω
  • Qes0.35
  • Qms9.3
  • Qts0.34
  • Vas1.5 dm3 (0.05 ft3)
  • Sd220.0 cm2 (34.1 in2)
  • η₀4.5 %
  • Xmax± 2.0 mm
  • Xvar± 1.7 mm
  • Mms19.0 g
  • Bl22.0 Txm
  • Le0.6 mH
  • EBP700 Hz

Mounting and Shipping Info

  • Overall Diameter239 mm (9.41 in)
  • Bolt Circle Diameter222 mm (8.74 in)
  • Baffle Cutout Diameter200.0 mm (7.87 in)
  • Depth115 mm (4.53 in)
  • Flange and Gasket Thickness16 mm (0.63 in)
  • Air Volume Occupied by Driver3.5 dm3 (0.12 ft3)
  • Net Weight4.55 kg (10.03 lb)
  • Shipping Units1
  • Shipping Weight5.15 kg (11.35 lb)
  • Shipping Box295x314x175 mm (11.61x12.36x6.89 in)

Service Kit

  • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minumum 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.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.