Vented Specialist

SEAS D1004-04 L16RN-SL

Best box: 17.3 L bass reflex tuned to 40.2 Hz · F3 38.7 Hz

Predicted SPL response of the SEAS D1004-04 L16RN-SL in the recommended 17.3 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) 17.3 Liters
Tuning Frequency (Fb) 40.2 Hz
F3 (-3 dB Cutoff) 38.7 Hz
F6 / F10 Extension 34.4 Hz / 30.4 Hz
Port Inner Diameter Ø 5.0 cm
Port Physical Length 17.5 cm
First Pipe Resonance 984.0 Hz
Estimated MOL @ F3 101.8 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 7.5 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 72.9 Hz
F3 (-3 dB Cutoff) 74.1 Hz
F6 / F10 Extension 56.0 Hz / 42.2 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 42.0 Hz
Total Q (Qts) 0.4
Electrical Q (Qes) 0.462
Mechanical Q (Qms) 3.0
Equivalent Volume (Vas) 16.0 Liters
Diaphragm Area (Sd) 120.0 cm²
DC Resistance (Re) 4.0 Ω
Efficiency Bandwidth Product (EBP) 91.0
Linear Excursion (Xmax) 6.0 mm
Thermal Power (Pe) 80.0 W
Nominal Diameter 6.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for SEAS D1004-04 L16RN-SL?

Load Forge's calculated alignment puts SEAS D1004-04 L16RN-SL in a 17.3 liter vented enclosure tuned to 40.2 Hz, reaching an F3 cutoff of approximately 38.7 Hz.

Can SEAS D1004-04 L16RN-SL be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 7.5 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 74.1 Hz.

What port dimensions should be used for SEAS D1004-04 L16RN-SL to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 17.5 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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SEAS D1004-04 L16RN-SL Enclosure Card
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