LaVoce WSF101.82
Best box: 0.001 L sealed · Fc 91.9 Hz · F3 98.4 Hz
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Comparable 0.75" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the LaVoce WSF101.82 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
- The textbook alignment (1.5 L at 56.0 Hz) would need a 121.5 cm port; the recommendation is retuned to 1.5 L at 100.8 Hz so the port can be built.
- Xmax is not published, so the port size is an empirical estimate (area ≥ 12 in² per ft³ of net volume, minimum by driver size), not a displacement calculation. Check air velocity in Load Forge Studio.
Textbook Bass Reflex — not recommended (10.0 dB bass hump)
PORT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 100.8 Hz |
| F3 (-3 dB Cutoff) | 95.5 Hz |
| F6 / F10 Extension | 91.9 Hz / 86.8 Hz |
| Port Inner Diameter ESTIMATED | Ø 5.0 cm |
| Port Physical Length | 35.0 cm |
| First Pipe Resonance | 491.0 Hz |
| Estimated MOL @ F3 | 81.9 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.45 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.636; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 0.001 Liters |
| System Q (Qtc) | 0.636 (below Butterworth) |
| System Resonance (Fc) | 91.9 Hz |
| F3 (-3 dB Cutoff) | 98.4 Hz |
| F6 / F10 Extension | 72.6 Hz / 53.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 65.0 Hz |
| Total Q (Qts) | 0.45 |
| Electrical Q (Qes) | 0.495 |
| Mechanical Q (Qms) | 5.0 |
| Equivalent Volume (Vas) | 0.0 Liters |
| Diaphragm Area (Sd) | 2.0 cm² |
| DC Resistance (Re) | 5.8 Ω |
| Efficiency Bandwidth Product (EBP) | 131.4 |
| Linear Excursion (Xmax) | N/A mm |
| Thermal Power (Pe) | 125.0 W |
| Nominal Diameter | 0.75" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for LaVoce WSF101.82?
A simple ported box is not recommended for LaVoce WSF101.82: the textbook alignment (1.5 liters tuned to 100.8 Hz) needs a 35.0 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can LaVoce WSF101.82 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.001 liters with a Qtc of 0.636 (below Butterworth), the system exhibits an F3 of 98.4 Hz.
What port dimensions should be used for LaVoce WSF101.82 to avoid port chuffing?
A straight 5.0 cm port would need 35.0 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
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