15FHW 15FHW
LF Woofer 15"

15FHW

Code: 15FHWX8-089

Woofer/15inch/Ferrite/Paper/400W/8ohm

Key Features

  • Hi sensitivity, low resonant frequency
  • Nomex spider
  • Strong, yet lightweight cone

Quick Specs

Impedance

8 Ω

Program Power

800 W

Sensitivity

90.67 dB

Fs

24.00 Hz

Magnet

Ferrite

Voice Coil

76 mm

Design Notes

The 15FHW is an ultra low frequency sub-woofer, designed to deliver large amounts of very low frequencies. With 91 dB 1watt / 1 meter sensitivity, you find this 15-inch sub-woofer with incredibly linear frequency response characteristics ideally assembled in sub-woofers for hi-fi, gaming, studios or cinema. The 15FHW uses a strong paper cone, along with a high excursion single roll rubber surround. Rubber surround material was specifically developed for this application. The shape of the surround roll was FEM optimized to ensure low distortion in whole working range.

Power Handling
At the core of the 15FHW is it’s voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures in excess of 200°C, well beyond the thermal requirements of modern professional audio systems.

REDCATT has implemented a Nomex(r) spider design to ensure long term Fs memory, consistency and diminish anomalies associated with spider deterioration.

Specifications

General Specs

Nominal Diameter 15"
Rated Impedance 8 Ohm
Magnet Ferrite
Basket Material Steel

Power Handling

AES Power 400 W
Continuous Power 800 W
Peak Power 1600 W

Voice Coil

Diameter 76 mm
Winding Wire Copper
Former Glass Fiber
Winding Height 19.7 mm

T/S Parameters

Resonant Frequency (Fs) 24.00 Hz
Re 5.80 \u2126
Qes 0.630
Qms 11.90
Qts 0.600
Vas 221.20 liters
Sd 804.00 cm\u00B2
Mms 169.60 grams
Rms 2.15
Cms 0.2600
Bl 15.80 T\u00B7m
Le 0.960 mH
Sensitivity 90.67 dB

Design Details

Surround Material NBR
Cone/Dome Material Paper GF
T-Plate 10 mm
Xmax (peak) 4.85 mm
Xmech 14.85 mm
Overall Diameter 385.00 mm
Bolt Circle Diameter 371.00 mm
Baffle Cutout Dia. 349.00 mm
Mounting Holes 8
Depth (flange to rear) 168.10 mm
Net Weight 6.80 kg

Ordering Codes

Product Code 15FHWX8-089

Frequency Response & Impedance

Frequency response of 15FHW

2D Drawing

2D drawing of 15FHW

Enclosure Recommendations

Recommended enclosure alignments (bass reflex):
- 90 liters tuned to 28 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 26 Hz, HP filter 25 Hz
- 105 liters tuned to 25 Hz: balanced response, general-purpose (recommended); -3 dB approx. 23 Hz, HP filter 22 Hz
- 125 liters tuned to 23 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 20 Hz, HP filter 20 Hz

Frequently Asked Questions

  • - Hi sensitivity, low resonant frequency
  • - Nomex spider
  • - Strong, yet lightweight cone
Recommended enclosure alignments (bass reflex):
- 90 liters tuned to 28 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 26 Hz, HP filter 25 Hz
- 105 liters tuned to 25 Hz: balanced response, general-purpose (recommended); -3 dB approx. 23 Hz, HP filter 22 Hz
- 125 liters tuned to 23 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 20 Hz, HP filter 20 Hz
Vented subwoofer, pa bass bin, touring sub cabinet; weight-critical installs
AES Power: 400 W, Continuous: 800 W, Peak: 1600 W. Sensitivity: 90.67 dB (1W/1m).

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