Vented Specialist

LaVoce NBASS10-20

Best box: 43.6 L bass reflex tuned to 51.0 Hz · F3 48.4 Hz

Predicted SPL response of the LaVoce NBASS10-20 in the recommended 43.6 L bass reflex box versus the alternative — open it in the simulator Open and tweak this box live ↗

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Recommended Bass Reflex (Vented)

PORT BUILDABLE
Net Box Volume (Vb) 43.6 Liters
Tuning Frequency (Fb) 51.0 Hz
F3 (-3 dB Cutoff) 48.4 Hz
F6 / F10 Extension 43.4 Hz / 38.4 Hz
Port Inner Diameter Ø 7.5 cm
Port Physical Length 6.3 cm
First Pipe Resonance 2724.0 Hz
Estimated MOL @ F3 111.5 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 19.0 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 90.4 Hz
F3 (-3 dB Cutoff) 91.1 Hz
F6 / F10 Extension 68.7 Hz / 51.7 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 52.0 Hz
Total Q (Qts) 0.39
Electrical Q (Qes) 0.42
Mechanical Q (Qms) 5.52
Equivalent Volume (Vas) 43.4 Liters
Diaphragm Area (Sd) 353.0 cm²
DC Resistance (Re) 5.2 Ω
Efficiency Bandwidth Product (EBP) 123.9
Linear Excursion (Xmax) 6.6 mm
Thermal Power (Pe) 150.0 W
Nominal Diameter 10.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for LaVoce NBASS10-20?

Load Forge's calculated alignment puts LaVoce NBASS10-20 in a 43.6 liter vented enclosure tuned to 51.0 Hz, reaching an F3 cutoff of approximately 48.4 Hz.

Can LaVoce NBASS10-20 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 19.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 91.1 Hz.

What port dimensions should be used for LaVoce NBASS10-20 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 7.5 cm with a length of 6.3 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.

Shareable Acoustic Card for Forums & Social Media

Embed this design card on DIYAudio, AVSForum, Reddit, or Facebook. It shows the calculated F3, MOL (when the power rating is published) and box parameters.

LaVoce NBASS10-20 Enclosure Card
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