LaVoce LAVSAF18401AF
Best box: 110.5 L bass reflex tuned to 42.2 Hz · F3 43.7 Hz
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Comparable 18.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the LaVoce LAVSAF18401AF does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 110.5 Liters |
| Tuning Frequency (Fb) | 42.2 Hz |
| F3 (-3 dB Cutoff) | 43.7 Hz |
| F6 / F10 Extension | 38.4 Hz / 33.4 Hz |
| Port Inner Diameter | Ø 15.0 cm |
| Port Physical Length | 16.2 cm |
| First Pipe Resonance | 1062.0 Hz |
| Estimated MOL @ F3 | 132.2 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 52.0 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 76.4 Hz |
| F3 (-3 dB Cutoff) | 76.9 Hz |
| F6 / F10 Extension | 57.7 Hz / 43.3 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 33.0 Hz |
| Total Q (Qts) | 0.29 |
| Electrical Q (Qes) | 0.301 |
| Mechanical Q (Qms) | 7.98 |
| Equivalent Volume (Vas) | 257.2 Liters |
| Diaphragm Area (Sd) | 1225.4 cm² |
| DC Resistance (Re) | 4.9 Ω |
| Efficiency Bandwidth Product (EBP) | 109.7 |
| Linear Excursion (Xmax) | 6.8 mm |
| Thermal Power (Pe) | N/A W |
| Nominal Diameter | 18.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for LaVoce LAVSAF18401AF?
Load Forge's calculated alignment puts LaVoce LAVSAF18401AF in a 110.5 liter vented enclosure tuned to 42.2 Hz, reaching an F3 cutoff of approximately 43.7 Hz.
Can LaVoce LAVSAF18401AF be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 52.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 76.9 Hz.
What port dimensions should be used for LaVoce LAVSAF18401AF to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 15.0 cm with a length of 16.2 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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