LaVoce NBASS08-20-32
Best box: 16.6 L bass reflex tuned to 48.4 Hz · F3 67.9 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the LaVoce NBASS08-20-32 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) | 16.6 Liters |
| Tuning Frequency (Fb) | 48.4 Hz |
| F3 (-3 dB Cutoff) | 67.9 Hz |
| F6 / F10 Extension | 55.7 Hz / 42.6 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 23.1 cm |
| First Pipe Resonance | 744.0 Hz |
| Estimated MOL @ F3 | 111.5 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.67 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.948; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 20.7 Liters |
| System Q (Qtc) | 0.948 (above Butterworth) |
| System Resonance (Fc) | 80.6 Hz |
| F3 (-3 dB Cutoff) | 67.9 Hz |
| F6 / F10 Extension | 55.4 Hz / 44.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 57.0 Hz |
| Total Q (Qts) | 0.67 |
| Electrical Q (Qes) | 0.732 |
| Mechanical Q (Qms) | 7.93 |
| Equivalent Volume (Vas) | 20.7 Liters |
| Diaphragm Area (Sd) | 235.1 cm² |
| DC Resistance (Re) | 25.8 Ω |
| Efficiency Bandwidth Product (EBP) | 77.9 |
| Linear Excursion (Xmax) | 6.4 mm |
| Thermal Power (Pe) | 200.0 W |
| Nominal Diameter | 8.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for LaVoce NBASS08-20-32?
Load Forge's calculated alignment puts LaVoce NBASS08-20-32 in a 16.6 liter vented enclosure tuned to 48.4 Hz, reaching an F3 cutoff of approximately 67.9 Hz.
Can LaVoce NBASS08-20-32 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 20.7 liters with a Qtc of 0.948 (above Butterworth), the system exhibits an F3 of 67.9 Hz.
What port dimensions should be used for LaVoce NBASS08-20-32 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 23.1 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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