Passive Radiator / Folded Port

Skar Audio TXL-10 D2

Best box: 3.1 L sealed · Fc 88.5 Hz · F3 89.7 Hz

Predicted SPL response of the Skar Audio TXL-10 D2 in the recommended 3.1 L sealed box versus the alternative — open it in the simulator Open and tweak this box live ↗

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⚠️ Engineering Notice for Builders

  • Straight vent would be 211.9 cm long: not physically buildable as a simple tube. Use a passive radiator, a folded slot port or model a 3D folded duct in Load Forge Studio.

Textbook Bass Reflex — not recommended

PORT NOT BUILDABLE
Net Box Volume (Vb) 7.2 Liters
Tuning Frequency (Fb) 48.1 Hz
F3 (-3 dB Cutoff) 46.5 Hz
F6 / F10 Extension 41.5 Hz / 36.7 Hz
Port Inner Diameter Ø 12.5 cm
Port Physical Length 211.9 cm
First Pipe Resonance 81.0 Hz
Estimated MOL @ F3 117.6 dB SPL
⚠️ Port feasibility: a straight tube would need 211.9 cm and cannot fit in a practical cabinet, and no nearby retune stays buildable without a bass hump. Prefer the sealed alignment, a passive radiator, or a 3D folded duct in Load Forge Studio.
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 3.1 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 88.5 Hz
F3 (-3 dB Cutoff) 89.7 Hz
F6 / F10 Extension 67.1 Hz / 50.2 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 47.9 Hz
Total Q (Qts) 0.38
Electrical Q (Qes) 0.412
Mechanical Q (Qms) 4.84
Equivalent Volume (Vas) 7.7 Liters
Diaphragm Area (Sd) 302.7 cm²
DC Resistance (Re) 4.0 Ω
Efficiency Bandwidth Product (EBP) 116.2
Linear Excursion (Xmax) 17.0 mm
Thermal Power (Pe) 4000.0 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 Skar Audio TXL-10 D2?

A simple ported box is not recommended for Skar Audio TXL-10 D2: the textbook alignment (7.2 liters tuned to 48.1 Hz) needs a 211.9 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.

Can Skar Audio TXL-10 D2 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 3.1 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 89.7 Hz.

What port dimensions should be used for Skar Audio TXL-10 D2 to avoid port chuffing?

A straight 12.5 cm port would need 211.9 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.

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.

Skar Audio TXL-10 D2 Enclosure Card
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