Versatile Load

SICA 10SR2PL-4

Best box: 82.7 L bass reflex tuned to 30.8 Hz · F3 28.9 Hz

Predicted SPL response of the SICA 10SR2PL-4 in the recommended 82.7 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) 82.7 Liters
Tuning Frequency (Fb) 30.8 Hz
F3 (-3 dB Cutoff) 28.9 Hz
F6 / F10 Extension 25.9 Hz / 23.1 Hz
Port Inner Diameter Ø 6.8 cm
Port Physical Length 9.0 cm
First Pipe Resonance 1908.0 Hz
Estimated MOL @ F3 107.5 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 36.3 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 55.0 Hz
F3 (-3 dB Cutoff) 56.1 Hz
F6 / F10 Extension 42.2 Hz / 31.8 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 33.6 Hz
Total Q (Qts) 0.42
Electrical Q (Qes) 0.466
Mechanical Q (Qms) 4.28
Equivalent Volume (Vas) 66.5 Liters
Diaphragm Area (Sd) 353.0 cm²
DC Resistance (Re) 3.16 Ω
Efficiency Bandwidth Product (EBP) 72.1
Linear Excursion (Xmax) 6.5 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 SICA 10SR2PL-4?

Load Forge's calculated alignment puts SICA 10SR2PL-4 in a 82.7 liter vented enclosure tuned to 30.8 Hz, reaching an F3 cutoff of approximately 28.9 Hz.

Can SICA 10SR2PL-4 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 36.3 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 56.1 Hz.

What port dimensions should be used for SICA 10SR2PL-4 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 9.0 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.

SICA 10SR2PL-4 Enclosure Card
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