JL Audio 10TW1-4
Best box: 9.7 L bass reflex tuned to 34.0 Hz · F3 45.6 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the JL Audio 10TW1-4 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
- The textbook alignment (9.7 L at 32.4 Hz) would need a 102.0 cm port; the recommendation is retuned to 9.7 L at 34.0 Hz so the port can be built.
- Port length (92.2 cm) exceeds a straight internal run; use an elbow bend, slotted vent or 3D folded duct to fit the enclosure.
Recommended Bass Reflex (Vented)
PORT NEEDS ELBOW / 3D| Net Box Volume (Vb) | 9.7 Liters |
| Tuning Frequency (Fb) | 34.0 Hz |
| F3 (-3 dB Cutoff) | 45.6 Hz |
| F6 / F10 Extension | 37.1 Hz / 28.8 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 92.2 cm |
| First Pipe Resonance | 187.0 Hz |
| Estimated MOL @ F3 | 113.3 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 31.6 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 44.5 Hz |
| F3 (-3 dB Cutoff) | 45.0 Hz |
| F6 / F10 Extension | 34.1 Hz / 25.8 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 38.1 Hz |
| Total Q (Qts) | 0.601 |
| Electrical Q (Qes) | 0.639 |
| Mechanical Q (Qms) | 10.07 |
| Equivalent Volume (Vas) | 12.1 Liters |
| Diaphragm Area (Sd) | 268.4 cm² |
| DC Resistance (Re) | 3.52 Ω |
| Efficiency Bandwidth Product (EBP) | 59.6 |
| Linear Excursion (Xmax) | 10.2 mm |
| Thermal Power (Pe) | N/A 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 JL Audio 10TW1-4?
Load Forge's calculated alignment puts JL Audio 10TW1-4 in a 9.7 liter vented enclosure tuned to 34.0 Hz, reaching an F3 cutoff of approximately 45.6 Hz.
Can JL Audio 10TW1-4 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 31.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 45.0 Hz.
What port dimensions should be used for JL Audio 10TW1-4 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 92.2 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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