Vented Specialist

P.Audio 12NT-88MB

Best box: 28.0 L bass reflex tuned to 64.4 Hz · F3 67.2 Hz

Predicted SPL response of the P.Audio 12NT-88MB in the recommended 28.0 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) 28.0 Liters
Tuning Frequency (Fb) 64.4 Hz
F3 (-3 dB Cutoff) 67.2 Hz
F6 / F10 Extension 58.5 Hz / 50.4 Hz
Port Inner Diameter Ø 10.0 cm
Port Physical Length 13.1 cm
First Pipe Resonance 1311.0 Hz
Estimated MOL @ F3 120.6 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 12.6 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 116.0 Hz
F3 (-3 dB Cutoff) 111.8 Hz
F6 / F10 Extension 87.1 Hz / 67.0 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 55.0 Hz
Total Q (Qts) 0.32
Electrical Q (Qes) 0.332
Mechanical Q (Qms) 9.07
Equivalent Volume (Vas) 49.1 Liters
Diaphragm Area (Sd) 539.1 cm²
DC Resistance (Re) 6.9 Ω
Efficiency Bandwidth Product (EBP) 165.8
Linear Excursion (Xmax) 5.0 mm
Thermal Power (Pe) 700.0 W
Nominal Diameter 12.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for P.Audio 12NT-88MB?

Load Forge's calculated alignment puts P.Audio 12NT-88MB in a 28.0 liter vented enclosure tuned to 64.4 Hz, reaching an F3 cutoff of approximately 67.2 Hz.

Can P.Audio 12NT-88MB be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 12.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 111.8 Hz.

What port dimensions should be used for P.Audio 12NT-88MB to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 13.1 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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P.Audio 12NT-88MB Enclosure Card
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