Audax HM130G14
Best box: 13.2 L bass reflex tuned to 46.4 Hz · F3 44.6 Hz
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Comparable 5.1" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Audax HM130G14 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
⚠️ Engineering Notice for Builders
- Limited linear excursion (Xmax: 3.1 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) | 13.2 Liters |
| Tuning Frequency (Fb) | 46.4 Hz |
| F3 (-3 dB Cutoff) | 44.6 Hz |
| F6 / F10 Extension | 39.2 Hz / 34.8 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 17.1 cm |
| First Pipe Resonance | 1004.0 Hz |
| Estimated MOL @ F3 | 101.6 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 7.6 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 82.2 Hz |
| F3 (-3 dB Cutoff) | 83.4 Hz |
| F6 / F10 Extension | 63.0 Hz / 47.6 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 57.1 Hz |
| Total Q (Qts) | 0.48 |
| Electrical Q (Qes) | 0.572 |
| Mechanical Q (Qms) | 2.98 |
| Equivalent Volume (Vas) | 8.8 Liters |
| Diaphragm Area (Sd) | 83.8 cm² |
| DC Resistance (Re) | 6.07 Ω |
| Efficiency Bandwidth Product (EBP) | 99.8 |
| Linear Excursion (Xmax) | 3.1 mm |
| Thermal Power (Pe) | N/A W |
| Nominal Diameter | 5.1" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Audax HM130G14?
Load Forge's calculated alignment puts Audax HM130G14 in a 13.2 liter vented enclosure tuned to 46.4 Hz, reaching an F3 cutoff of approximately 44.6 Hz.
Can Audax HM130G14 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 7.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 83.4 Hz.
What port dimensions should be used for Audax HM130G14 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 17.1 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.
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