Redcatt 31NFR-X8

Speaker Spares
31NFR-X8

Description

Redcatt 31NFR-X8 is a 3 inch full range speaker with a lightweight hard anodised aluminium cone and a single roll NBR surround. A neodymium magnetic circuit with a copper demodulation cup sits behind it. The listing quotes 8 ohm impedance, 30 W AES power and 84 dB sensitivity, and points to hi fi, column, outdoor and portable uses. Buy it at VMT with a GST invoice and delivery across India.

Key features

  • 3 inch full range speaker, 8 ohm
  • 30 W AES power, 60 W program power
  • 84 dB (1 W / 1 m) sensitivity
  • Hard anodised aluminium cone, copper demodulation cup

Specifications

Woofer3"
Power (RMS)30 W
Impedance8 ohm
Sensitivity84 dB (1 W / 1 m)
Voice coil1" voice coil
MagnetNeodymium
Manufacturer description
Key features:
  • EXTENDED FREQUENCY RESPONSE
  • HARD ANODIZED ALUMINUM CONE
  • USAGE IN HI-FI, COLUMNS, OUTDOOR AND PORTABLE PRODUCTS

Design notes:
The 31NFR is a high efficiency, (84dB 1watt / 1 meter) 3-inch full range speaker with very linear frequency response characteristics and high power handling capability. The 31NFR uses a lightweight anodized aluminum cone assembly along with a NBR single roll geometry surround. The combination provides high efficiency, extended high frequency response and sustained output under variety of conditions, while generating low harmonic distortion over the working range of this speaker. Magnetic circuit designREDCATT engineers have developed neodymium based magnetic circuit with small form factor, high integrity magnetic flux gap and low distortion characteristic. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability. Copper demodulation cup is assembled over the t-pole.

Specifications:
  • General specs
    Nominal Diameter: 3 in.
    Rated Impedance: 8 Ohm
    Power handling
    AES Power: 30 Watts
    Program Power: 60 Watts
    Voice Coil
    Diameter: 1 in.
    Winding wire: Aluminum
    Former: kapton
    Winding height: 7.4 mm
  • T/S Parameters
    Resonant frequency: 115 Hz
    Re: 6.3 ohm
    Qes: 0.94
    Qms: 15.1
    Qts: 0.88
    Vas: 0.85 liters
    Sd: 28.3 cm2
    Mms: 2.5 grams
    Bl: 3.5
    Le: 0.09 mH
    Sensitivity: 84.49 dB
  • Design details
    Surround Material: Rubber
    Cone material: Aluminum
    Spider: Nomex
    Plate thickness: 4 mm
    Peak to peak linear cone Displacement 2.9 mm
    Overall diameter: 78.7 mm
    Bolt circle diameter: 84 mm
    Baffle cutout dia.: 71.5 mm
    Number of mounting holes: 4
    Depth (flange to rear): 45.3 mm
    Net weight: 0.18 kg
  • Ordering codes:
    4 ohm version: n/a
    8 ohm version: 31NFRX8-229
    16 ohm version: n/a

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