FaitalPRO 4FE32 4" Neodymium Professional Woofer 8 Ohm
Best box: 3.0 L bass reflex tuned to 70.0 Hz · F3 88.5 Hz
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Comparable 4.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the FaitalPRO 4FE32 4" Neodymium Professional Woofer 8 Ohm does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
⚠️ Engineering Notice for Builders
- Limited linear excursion (Xmax: 2.73 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 3.0 Liters |
| Tuning Frequency (Fb) | 70.0 Hz |
| F3 (-3 dB Cutoff) | 88.5 Hz |
| F6 / F10 Extension | 63.3 Hz / 53.4 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 36.5 cm |
| First Pipe Resonance | 472.0 Hz |
| Estimated MOL @ F3 | 98.8 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 5.1 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 115.5 Hz |
| F3 (-3 dB Cutoff) | 116.5 Hz |
| F6 / F10 Extension | 88.2 Hz / 66.7 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 100.0 Hz |
| Total Q (Qts) | 0.6 |
| Electrical Q (Qes) | 0.684 |
| Mechanical Q (Qms) | 4.9 |
| Equivalent Volume (Vas) | 2.0 Liters |
| Diaphragm Area (Sd) | 48.0 cm² |
| DC Resistance (Re) | 7.0 Ω |
| Efficiency Bandwidth Product (EBP) | 146.3 |
| Linear Excursion (Xmax) | 2.7 mm |
| Thermal Power (Pe) | 30.0 W |
| Nominal Diameter | 4.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for FaitalPRO 4FE32 4" Neodymium Professional Woofer 8 Ohm?
Load Forge's calculated alignment puts FaitalPRO 4FE32 4" Neodymium Professional Woofer 8 Ohm in a 3.0 liter vented enclosure tuned to 70.0 Hz, reaching an F3 cutoff of approximately 88.5 Hz.
Can FaitalPRO 4FE32 4" Neodymium Professional Woofer 8 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 5.1 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 116.5 Hz.
What port dimensions should be used for FaitalPRO 4FE32 4" Neodymium Professional Woofer 8 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 36.5 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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Not sure if 4FE32 4" Neodymium Professional Woofer 8 Ohm fits your physical space?
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