Vented Specialist

JBL Professional E130

Best box: 38.0 L bass reflex tuned to 74.9 Hz · F3 89.6 Hz

Predicted SPL response of the JBL Professional E130 in the recommended 38.0 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

  • Limited linear excursion (Xmax: 2.54 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.

Recommended Bass Reflex (Vented)

PORT BUILDABLE
Net Box Volume (Vb) 38.0 Liters
Tuning Frequency (Fb) 74.9 Hz
F3 (-3 dB Cutoff) 89.6 Hz
F6 / F10 Extension 76.1 Hz / 64.5 Hz
Port Inner Diameter Ø 10.0 cm
Port Physical Length 3.9 cm
First Pipe Resonance 4418.0 Hz
Estimated MOL @ F3 118.6 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 23.1 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 134.3 Hz
F3 (-3 dB Cutoff) 124.5 Hz
F6 / F10 Extension 96.5 Hz / 73.5 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 40.0 Hz
Total Q (Qts) 0.19
Electrical Q (Qes) 0.212
Mechanical Q (Qms) 1.8
Equivalent Volume (Vas) 297.3 Liters
Diaphragm Area (Sd) 900.0 cm²
DC Resistance (Re) 6.3 Ω
Efficiency Bandwidth Product (EBP) 188.3
Linear Excursion (Xmax) 2.5 mm
Thermal Power (Pe) 150.0 W
Nominal Diameter 15.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for JBL Professional E130?

Load Forge's calculated alignment puts JBL Professional E130 in a 38.0 liter vented enclosure tuned to 74.9 Hz, reaching an F3 cutoff of approximately 89.6 Hz.

Can JBL Professional E130 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 23.1 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 124.5 Hz.

What port dimensions should be used for JBL Professional E130 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 3.9 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.

JBL Professional E130 Enclosure Card
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