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8" | 8NPM
Neodymium Mid-Woofer
Key features:
  • Hi sensitivity

  • Hi power handling

  • Designed for applications where are sizable amounts of mid-frequencies required

Design notes:
    • The 8NPM is a high efficiency, (96dB 1watt / 1 meter) 8-inch mid-woofer with extended mid frequency response and high power handling capability. The 8NPM uses a lightweight half pressed paper cone along with a double roll fabric surround. Spider is made of Nomex material with optimized shape for well controlled pistonic motion. The used high quality
    • components ensure long lasting performance even in high powered applications. The chosen material combination provides remarkable strength, high efficiency and sustained output under extreme conditions. Power HandlingThe voice coil featuring Kapton former material capable of withstanding peak temperatures in excess of 280C, well beyond the
    • thermal requirements of modern audio systems. Former strength provides the ideal transfer of power between the voice coil and the cone assembly and assists in reducing distortion artifacts. By combining this material with state of the art adhesives and our winding voice coil technology, the 8NPM delivers incredibly high performance.
Specifications:
    • General specs
      Nominal Diameter:8 in.
      Rated Impedance:8 Ohm
      Power handling
      AES Power:200 Watts
      Program Power:400 Watts
      Voice Coil
      Diameter:2 in.
      Winding wire:CCAW
      Former:kapton
      Winding height:15.4 mm
    • T/S Parameters
      Resonant frequency:79 Hz
      Re:5.4 ohm
      Qes:0.31
      Qms:3.85
      Qts:0.29
      Vas:10.9 liters
      Sd:213.8 cm2
      Mms:23.9 grams
      Bl:14.2
      Le:0.6 mH
      Sensitivity:96.06 dB
    • Design details
      Surround Material:Fabric
      Cone material:Paper
      Spider:Nomex
      Plate thickness:8 mm
      Peak to peak linear cone Displacement10.2 mm
      Overall diameter:209.5 mm
      Bolt circle diameter:197.5 mm
      Baffle cutout dia.:185 mm
      Number of mounting holes:8
      Depth (flange to rear):87.3 mm
      Net weight:1.8 kg
    • Ordering codes:
      8 ohm version:8NPMX8-157
      Recone kits:
      Download:
      Spec download
      2D drawing
      3D model
Frequency response & lmpedance
2D drawing
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REDCATT designs and manufactures world class loudspeakers. Additionally to the loudspeakers sold under REDCATT brand name, we also design and manufacture OEM / ODM loudspeakers.
Copyright © 2012-2026 REDCATT Technology CO., LTD. All Rights Reserved
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CX6F-140F
Neodymium Mid-Woofer
8" | 8NPM
Key features:
  • Hi sensitivity

  • Hi power handling

  • Designed for applications where are sizable amounts of mid-frequencies required

Design notes:

The 8NPM is a high efficiency, (96dB 1watt / 1 meter) 8-inch mid-woofer with extended mid frequency response and high power handling capability. The 8NPM uses a lightweight half pressed paper cone along with a double roll fabric surround. Spider is made of Nomex material with optimized shape for well controlled pistonic motion. The used high quality components ensure long lasting performance even in high powered applications. The chosen material combination provides remarkable strength, high efficiency and sustained output under extreme conditions. Power HandlingThe voice coil featuring Kapton former material capable of withstanding peak temperatures in excess of 280C, well beyond the thermal requirements of modern audio systems. Former strength provides the ideal transfer of power between the voice coil and the cone assembly and assists in reducing distortion artifacts. By combining this material with state of the art adhesives and our winding voice coil technology, the 8NPM delivers incredibly high performance.

Specifications:
General specs
Nominal Diameter:8 in.
Rated Impedance:8 Ohm
Power handling
AES Power:200 Watts
Program Power:400 Watts
Voice Coil
Diameter:2 in.
Winding wire:CCAW
Former:kapton
Winding height:15.4 mm
T/S Parameters
Resonant frequency:79 Hz
Re:5.4 ohm
Qes:0.31
Qms:3.85
Qts:0.29
Vas:10.9 liters
Sd:213.8 cm2
Mms:23.9 grams
Bl:14.2
Le:0.6 mH
Sensitivity:96.06 dB
Design details
Surround Material:Fabric
Cone material:Paper
Spider:Nomex
Plate thickness:8 mm
Peak to peak linear cone Displacement10.2 mm
Overall diameter:209.5 mm
Bolt circle diameter:197.5 mm
Baffle cutout dia.:185 mm
Number of mounting holes:8
Depth (flange to rear):87.3 mm
Net weight:1.8 kg
Ordering codes:
8 ohm version:8NPMX8-157
Recone kits:


Download:
Spec download
2D drawing
3D model
Frequency response & lmpedance
2D drawing

Phone: (+86) 769 8318 1898    Email: info@redcatt.net

Copyright © 2012-2026 REDCATT Technology CO., LTD. All Rights Reserved