Versatile Load

Infinity KAPPA Perfect 10

Best box: 47.9 L bass reflex tuned to 26.0 Hz · F3 23.8 Hz

Predicted SPL response of the Infinity KAPPA Perfect 10 in the recommended 47.9 L bass reflex box versus the alternative — open it in the simulator Open and tweak this box live ↗

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⚠️ Engineering Notice for Builders

  • Port length (65.6 cm) exceeds a straight internal run; use an elbow bend, slotted vent or 3D folded duct to fit the enclosure.

Recommended Bass Reflex (Vented)

PORT NEEDS ELBOW / 3D
Net Box Volume (Vb) 47.9 Liters
Tuning Frequency (Fb) 26.0 Hz
F3 (-3 dB Cutoff) 23.8 Hz
F6 / F10 Extension 21.7 Hz / 19.5 Hz
Port Inner Diameter Ø 10.0 cm
Port Physical Length 65.6 cm
First Pipe Resonance 262.0 Hz
Estimated MOL @ F3 106.2 dB SPL
⚠️ Port feasibility: a straight 10.0 cm tube needs 65.6 cm of internal length. Use an elbow bend, a slotted vent or a 3D folded duct.
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 21.0 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 47.3 Hz
F3 (-3 dB Cutoff) 48.5 Hz
F6 / F10 Extension 35.0 Hz / 25.7 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 28.4 Hz
Total Q (Qts) 0.42
Electrical Q (Qes) 0.441
Mechanical Q (Qms) 8.83
Equivalent Volume (Vas) 38.5 Liters
Diaphragm Area (Sd) 346.0 cm²
DC Resistance (Re) 4.11 Ω
Efficiency Bandwidth Product (EBP) 64.3
Linear Excursion (Xmax) 14.2 mm
Thermal Power (Pe) 350.0 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 Infinity KAPPA Perfect 10?

Load Forge's calculated alignment puts Infinity KAPPA Perfect 10 in a 47.9 liter vented enclosure tuned to 26.0 Hz, reaching an F3 cutoff of approximately 23.8 Hz.

Can Infinity KAPPA Perfect 10 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 21.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 48.5 Hz.

What port dimensions should be used for Infinity KAPPA Perfect 10 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 65.6 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.

Infinity KAPPA Perfect 10 Enclosure Card
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