8FHW
LF Woofer 8"

8FHW

Code: 8FHWX4-088

Woofer/8inch/Ferrite/Paper/200W/4ohm

Key Features

  • Heavy-duty rubber surround and paper cone
  • Ideal for small subwoofers, hi-fi applications
  • High power handling

Quick Specs

Impedance

4 Ω

Program Power

400 W

Sensitivity

84.40 dB

Fs

41.00 Hz

Magnet

Ferrite

Voice Coil

35.6 mm

Design Notes

The 8FHW is 8-inch low frequency woofer with linear frequency response characteristics, high power handling capability while generating low harmonic distortion artifacts.
The single roll rubber surround design allows the cone to travel in long linear motion. Together with lightweight, yet strong cone,this combination provides remarkable strength, high efficiency and a excursion linearity of 13mm (one direction).

Magnetic Circuit
REDCATT engineers have developed an efficient, ferrite based magnetic circuit, capable of delivering the high level of performance providing a consistent, high integrity magnetic flux gap, low distortion characteristic. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability.

Specifications

General Specs

Nominal Diameter 8"
Rated Impedance 4 Ohm
Magnet Ferrite
Basket Material Steel

Power Handling

AES Power 200 W
Continuous Power 400 W
Peak Power 800 W

Voice Coil

Diameter 35.6 mm
Winding Wire Copper
Former Aluminum
Winding Height 25.4 mm

T/S Parameters

Resonant Frequency (Fs) 41.00 Hz
Re 4.00 \u2126
Qes 0.750
Qms 4.20
Qts 0.600
Vas 19.60 liters
Sd 202.30 cm\u00B2
Mms 45.90 grams
Rms 2.81
Cms 0.3300
Bl 7.88 T\u00B7m
Le 0.720 mH
Sensitivity 84.40 dB

Design Details

Surround Material NBR
Cone/Dome Material Paper GF
Spider Conex
T-Plate 8 mm
Xmax (peak) 8.7 mm
Xmech 16.7 mm
Overall Diameter 214.00 mm
Bolt Circle Diameter 204.00 mm
Baffle Cutout Dia. 181.00 mm
Mounting Holes 8
Depth (flange to rear) 105.00 mm
Net Weight 2.10 kg

Ordering Codes

Product Code 8FHWX4-088

Frequency Response & Impedance

Frequency response of 8FHW

2D Drawing

2D drawing of 8FHW

Enclosure Recommendations

Recommended enclosure alignments (bass reflex):
- 8 liters tuned to 47 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 43 Hz, HP filter 39 Hz
- 10 liters tuned to 43 Hz: balanced response, general-purpose (recommended); -3 dB approx. 40 Hz, HP filter 33 Hz
- 10 liters tuned to 39 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 33 Hz, HP filter 27 Hz

Frequently Asked Questions

  • - Heavy-duty rubber surround and paper cone
  • - Ideal for small subwoofers, hi-fi applications
  • - High power handling
Recommended enclosure alignments (bass reflex):
- 8 liters tuned to 47 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 43 Hz, HP filter 39 Hz
- 10 liters tuned to 43 Hz: balanced response, general-purpose (recommended); -3 dB approx. 40 Hz, HP filter 33 Hz
- 10 liters tuned to 39 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 33 Hz, HP filter 27 Hz
Sealed or vented pa mid-woofer, 2-way compact top
AES Power: 200 W, Continuous: 400 W, Peak: 800 W. Sensitivity: 84.40 dB (1W/1m).

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