FaitalPRO 15XL2400-8P
Best box: 19.4 L bass reflex tuned to 74.0 Hz · F3 76.7 Hz
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Comparable 15.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the FaitalPRO 15XL2400-8P 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 (19.4 L at 54.8 Hz) would need a 147.3 cm port; the recommendation is retuned to 19.4 L at 74.0 Hz so the port can be built.
- Port length (98.0 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) | 19.4 Liters |
| Tuning Frequency (Fb) | 74.0 Hz |
| F3 (-3 dB Cutoff) | 76.7 Hz |
| F6 / F10 Extension | 68.5 Hz / 60.0 Hz |
| Port Inner Diameter | Ø 22.7 cm |
| Port Physical Length | 98.0 cm |
| First Pipe Resonance | 176.0 Hz |
| Estimated MOL @ F3 | 126.0 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 11.0 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 104.8 Hz |
| F3 (-3 dB Cutoff) | 103.2 Hz |
| F6 / F10 Extension | 78.6 Hz / 59.4 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 32.0 Hz |
| Total Q (Qts) | 0.21 |
| Electrical Q (Qes) | 0.213 |
| Mechanical Q (Qms) | 15.4 |
| Equivalent Volume (Vas) | 113.9 Liters |
| Diaphragm Area (Sd) | 848.0 cm² |
| DC Resistance (Re) | 6.3 Ω |
| Efficiency Bandwidth Product (EBP) | 150.3 |
| Linear Excursion (Xmax) | 17.7 mm |
| Thermal Power (Pe) | 2200.0 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 FaitalPRO 15XL2400-8P?
Load Forge's calculated alignment puts FaitalPRO 15XL2400-8P in a 19.4 liter vented enclosure tuned to 74.0 Hz, reaching an F3 cutoff of approximately 76.7 Hz.
Can FaitalPRO 15XL2400-8P be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 11.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 103.2 Hz.
What port dimensions should be used for FaitalPRO 15XL2400-8P to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 22.7 cm with a length of 98.0 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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