Sealed Specialist

Custom flat_aliexpress

Best box: 11.4 L sealed · Fc 67.5 Hz · F3 58.3 Hz

Predicted SPL response of the Custom flat_aliexpress in the recommended 11.4 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

  • Port length (66.9 cm) exceeds a straight internal run; use an elbow bend, slotted vent or 3D folded duct to fit the enclosure.

Textbook Bass Reflex — not recommended (7.0 dB bass hump)

PORT NEEDS ELBOW / 3D
Net Box Volume (Vb) 9.2 Liters
Tuning Frequency (Fb) 40.6 Hz
F3 (-3 dB Cutoff) 67.5 Hz
F6 / F10 Extension 61.1 Hz / 52.7 Hz
Port Inner Diameter Ø 6.8 cm
Port Physical Length 66.9 cm
First Pipe Resonance 257.0 Hz
Estimated MOL @ F3 106.2 dB SPL
⚠️ Port feasibility: a straight 6.8 cm tube needs 66.9 cm of internal length. Use an elbow bend, a slotted vent or a 3D folded duct.
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Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 1.92 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 2.715; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb) 11.4 Liters
System Q (Qtc) 2.715 (above Butterworth: Qtc cannot fall below Qts (1.92))
System Resonance (Fc) 67.5 Hz
F3 (-3 dB Cutoff) 58.3 Hz
F6 / F10 Extension 52.8 Hz / 46.0 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 47.7 Hz
Total Q (Qts) 1.92
Electrical Q (Qes) 2.351
Mechanical Q (Qms) 10.47
Equivalent Volume (Vas) 11.4 Liters
Diaphragm Area (Sd) 346.4 cm²
DC Resistance (Re) 2.86 Ω
Efficiency Bandwidth Product (EBP) 20.3
Linear Excursion (Xmax) 4.0 mm
Thermal Power (Pe) 100.0 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 Custom flat_aliexpress?

A simple ported box is not recommended for Custom flat_aliexpress: the textbook alignment (9.2 liters tuned to 40.6 Hz) needs a 66.9 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 Custom flat_aliexpress be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 11.4 liters with a Qtc of 2.715 (above Butterworth: Qtc cannot fall below Qts (1.92)), the system exhibits an F3 of 58.3 Hz.

What port dimensions should be used for Custom flat_aliexpress to avoid port chuffing?

A straight 6.8 cm port would need 66.9 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

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Custom flat_aliexpress Enclosure Card
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