- Mid-woofer designed for outdoor or indoor applications
- UV stabilized Polypropylene cone and rubber surround
- Components are treated to survive harsh outdoor environments
- 8FHW was designed as mid-woofer, with extended frequency response to low frequencies, as well as good extension into the mid-frequencies. All parts are
- intensively treated for outdoor usage, cone, surround material are with UV stabilizers. The used adhesives make sure the driver is waterproof. The cone utilizes
- polypropylene material and rubber surround. This combination sports sizable amounts of low frequencies and good behavior in the higher mid-frequencies.
General specs Nominal Diameter: 8 in. Rated Impedance: 4 Ohm Power handling AES Power: 100 Watts Program Power: 200 Watts Voice Coil Diameter: 1.2 in. Winding wire: Copper Former: Aluminum Winding height: 15.3 mm T/S Parameters Resonant frequency: 36 Hz Re: 3.3 ohm Qes: 0.38 Qms: 4.53 Qts: 0.35 Vas: 34.3 liters Sd: 213.8 cm2 Mms: 36.59 grams Bl: 8.6 Le: 0.89 mH Sensitivity: 89.12 dB Design details Surround Material: Rubber Cone material: Polypropylene Spider: Conex Plate thickness: 8 mm Peak to peak linear cone Displacement 16.8 mm Overall diameter: 209.5 mm Bolt circle diameter: 197 mm Baffle cutout dia.: 184.5 mm Number of mounting holes: 8 Depth (flange to rear): 86.5 mm Net weight: 1.5 kg Ordering codes: 4 ohm version: 8FHWX4-382 Recone kits: Download: Spec download 2D drawing 3D model
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PRODUCT CODE: 8FHWX4-382
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--- ENCLOSURE RECOMMENDATIONS ---
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ENCLOSURE RECOMMENDATIONS: 8FHWX4-382
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Driver: 8FHWX4-382 (8FHW) — 8" Sub-woofer
Key T/S: Fs=36.0Hz, Qts=0.35, Vas=34.3L, Sens=89.12dB
Power: AES 100W / Cont 200W / Peak 400W
Xmax=3.65mm, Sd=213.8cm², Bl=8.6T·m
RECOMMENDED ENCLOSURE TYPE: Bass Reflex (Vented)
PORT RECOMMENDATION: Round port (65mm diameter) — adequate for compact enclosures with lower air volume velocity
a) High SPL
Net Volume: 20 liters
Tuning (Fb): 41 Hz
Est. -3dB: 38 Hz
HP Filter: 33 Hz (24dB/oct recommended)
Round Port: 65mm dia × 234mm long
Slot Port: 148mm W × 40mm H × 437mm L
Port Velocity: 6.1 m/s
Notes: Strong mid-bass impact, reduced cone excursion, maximum output
b) Balanced Response
Net Volume: 24 liters
Tuning (Fb): 38 Hz
Est. -3dB: 35 Hz
HP Filter: 28 Hz (24dB/oct recommended)
Round Port: 65mm dia × 229mm long
Slot Port: 148mm W × 40mm H × 429mm L
Port Velocity: 5.6 m/s
Notes: General-purpose PA/subwoofer, even response, good transient behavior
c) Extended Low Frequency
Net Volume: 24 liters
Tuning (Fb): 34 Hz
Est. -3dB: 29 Hz
HP Filter: 22 Hz (24dB/oct recommended)
Round Port: 65mm dia × 291mm long
Slot Port: 148mm W × 40mm H × 538mm L
Port Velocity: 5.1 m/s
Notes: Deep bass extension, requires proper system protection below tuning
--- Summary ---
The 8FHWX4-382 is a 8-inch sub-woofer driver designed for compact hi-fi subwoofer systems, home audio, and cost-effective installation applications. It operates at 89.1 dB sensitivity (1W/1m). The motor and suspension are optimized to maintain consistent performance at high drive levels, with controlled excursion and reduced thermal compression during long-term operation.
In bass reflex enclosures, the driver performs best in net internal volumes of 20 to 24 liters, tuned between 34 and 41 Hz. This alignment provides a balanced combination of low-frequency extension, cone control around resonance, and efficient port loading. Lower tuning improves deep bass extension but increases excursion below tuning, requiring appropriate high-pass filtering. Higher tuning increases sensitivity and output in the upper bass region while improving mechanical control.
The driver is intended for use with moderate amplification (approx. 100 W AES / 200 W continuous) and DSP control. A high-pass filter in the range of 22–33 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 29–100 Hz, suitable for integration with a mid-bass or full-range driver in a two-way system.
This design is particularly effective in single or multi-driver bass reflex systems used in hi-fi, home theater, and cost-conscious installation applications, where a balance of low-frequency extension, compactness, and value are the primary priorities.
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======================================================================
PRODUCT CODE: 8FHWX4-382
======================================================================
--- ENCLOSURE RECOMMENDATIONS ---
======================================================================
ENCLOSURE RECOMMENDATIONS: 8FHWX4-382
======================================================================
Driver: 8FHWX4-382 (8FHW) — 8" Sub-woofer
Key T/S: Fs=36.0Hz, Qts=0.35, Vas=34.3L, Sens=89.12dB
Power: AES 100W / Cont 200W / Peak 400W
Xmax=3.65mm, Sd=213.8cm², Bl=8.6T·m
RECOMMENDED ENCLOSURE TYPE: Bass Reflex (Vented)
PORT RECOMMENDATION: Round port (65mm diameter) — adequate for compact enclosures with lower air volume velocity
a) High SPL
Net Volume: 20 liters
Tuning (Fb): 41 Hz
Est. -3dB: 38 Hz
HP Filter: 33 Hz (24dB/oct recommended)
Round Port: 65mm dia × 234mm long
Slot Port: 148mm W × 40mm H × 437mm L
Port Velocity: 6.1 m/s
Notes: Strong mid-bass impact, reduced cone excursion, maximum output
b) Balanced Response
Net Volume: 24 liters
Tuning (Fb): 38 Hz
Est. -3dB: 35 Hz
HP Filter: 28 Hz (24dB/oct recommended)
Round Port: 65mm dia × 229mm long
Slot Port: 148mm W × 40mm H × 429mm L
Port Velocity: 5.6 m/s
Notes: General-purpose PA/subwoofer, even response, good transient behavior
c) Extended Low Frequency
Net Volume: 24 liters
Tuning (Fb): 34 Hz
Est. -3dB: 29 Hz
HP Filter: 22 Hz (24dB/oct recommended)
Round Port: 65mm dia × 291mm long
Slot Port: 148mm W × 40mm H × 538mm L
Port Velocity: 5.1 m/s
Notes: Deep bass extension, requires proper system protection below tuning
--- Summary ---
The 8FHWX4-382 is a 8-inch sub-woofer driver designed for compact hi-fi subwoofer systems, home audio, and cost-effective installation applications. It operates at 89.1 dB sensitivity (1W/1m). The motor and suspension are optimized to maintain consistent performance at high drive levels, with controlled excursion and reduced thermal compression during long-term operation.
In bass reflex enclosures, the driver performs best in net internal volumes of 20 to 24 liters, tuned between 34 and 41 Hz. This alignment provides a balanced combination of low-frequency extension, cone control around resonance, and efficient port loading. Lower tuning improves deep bass extension but increases excursion below tuning, requiring appropriate high-pass filtering. Higher tuning increases sensitivity and output in the upper bass region while improving mechanical control.
The driver is intended for use with moderate amplification (approx. 100 W AES / 200 W continuous) and DSP control. A high-pass filter in the range of 22–33 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 29–100 Hz, suitable for integration with a mid-bass or full-range driver in a two-way system.
This design is particularly effective in single or multi-driver bass reflex systems used in hi-fi, home theater, and cost-conscious installation applications, where a balance of low-frequency extension, compactness, and value are the primary priorities.
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