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4" | 41NFR
Neodymium Full-range
Key features:
  • Full-range FREQUENCY RESPONSE

  • Extended LF response

  • Front or rear mounting

Design notes:
    • 41NFR was introduced as part of our new range of smaller transducers. The model is focusing on improvements in frequency response, both in LF and Mid-Freq. Powerful neodymium ring based magnetic structure delivers the highest levels of moving force onto the voice coil with minimum distortion artifacts.
    • The cone and rubber surround were further FEM modeled and deliver incredible performance. 41NFR was designed for column speakers, micro line-array systems and two-way audio systems. Due to its good performance in high frequencies, this driver can be used without HF unit, which opens new opportunities for the system
    • engineers to design compact, yet good sounding products. Our newly developed basket with typical REDCATT shapes, utilizes tall front EVA gasket and 1mm rear gasket. The driver can be thus mounted from both sides of the baffle.
Specifications:
    • General specs
      Nominal Diameter:4 in.
      Rated Impedance:16 Ohm
      Power handling
      AES Power:40 Watts
      Program Power:80 Watts
      Voice Coil
      Diameter:1 in.
      Winding wire:Copper
      Former:kapton
      Winding height:11.3 mm
    • T/S Parameters
      Resonant frequency:98 Hz
      Re:12.2 ohm
      Qes:0.4
      Qms:5.05
      Qts:0.37
      Vas:2.1 liters
      Sd:56.75 cm2
      Mms:5.4 grams
      Bl:10
      Le:0.58 mH
      Sensitivity:90.3 dB
    • Design details
      Surround Material:Rubber
      Cone material:Paper
      Spider:Nomex
      Plate thickness:5 mm
      Peak to peak linear cone Displacement10.2 mm
      Overall diameter:104.5 mm
      Bolt circle diameter:106.3 mm
      Baffle cutout dia.:92.2 mm
      Number of mounting holes:4
      Depth (flange to rear):51.2 mm
      Net weight:0.54 kg
    • Ordering codes:
      16 ohm version41NFRX16-464A:n/a
      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 Full-range
4" | 41NFR
Key features:
  • Full-range FREQUENCY RESPONSE

  • Extended LF response

  • Front or rear mounting

Design notes:

41NFR was introduced as part of our new range of smaller transducers. The model is focusing on improvements in frequency response, both in LF and Mid-Freq. Powerful neodymium ring based magnetic structure delivers the highest levels of moving force onto the voice coil with minimum distortion artifacts. The cone and rubber surround were further FEM modeled and deliver incredible performance. 41NFR was designed for column speakers, micro line-array systems and two-way audio systems. Due to its good performance in high frequencies, this driver can be used without HF unit, which opens new opportunities for the system engineers to design compact, yet good sounding products. Our newly developed basket with typical REDCATT shapes, utilizes tall front EVA gasket and 1mm rear gasket. The driver can be thus mounted from both sides of the baffle.

Specifications:
General specs
Nominal Diameter:4 in.
Rated Impedance:16 Ohm
Power handling
AES Power:40 Watts
Program Power:80 Watts
Voice Coil
Diameter:1 in.
Winding wire:Copper
Former:kapton
Winding height:11.3 mm
T/S Parameters
Resonant frequency:98 Hz
Re:12.2 ohm
Qes:0.4
Qms:5.05
Qts:0.37
Vas:2.1 liters
Sd:56.75 cm2
Mms:5.4 grams
Bl:10
Le:0.58 mH
Sensitivity:90.3 dB
Design details
Surround Material:Rubber
Cone material:Paper
Spider:Nomex
Plate thickness:5 mm
Peak to peak linear cone Displacement10.2 mm
Overall diameter:104.5 mm
Bolt circle diameter:106.3 mm
Baffle cutout dia.:92.2 mm
Number of mounting holes:4
Depth (flange to rear):51.2 mm
Net weight:0.54 kg
Ordering codes:
16 ohm version41NFRX16-464A:n/a
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