FaitalPRO M5N8-80
Best box: 1.9 L bass reflex tuned to 113.8 Hz · F3 260.4 Hz
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Comparable 5.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the FaitalPRO M5N8-80 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 (1.5 L at 189.6 Hz) would need a 7.3 cm port; the recommendation is retuned to 1.9 L at 113.8 Hz so the port can be built.
- Limited linear excursion (Xmax: 2.75 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) | 1.9 Liters |
| Tuning Frequency (Fb) | 113.8 Hz |
| F3 (-3 dB Cutoff) | 260.4 Hz |
| F6 / F10 Extension | 143.2 Hz / 97.9 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 20.3 cm |
| First Pipe Resonance | 845.0 Hz |
| Estimated MOL @ F3 | 110.0 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 0.6 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 340.6 Hz |
| F3 (-3 dB Cutoff) | 333.8 Hz |
| F6 / F10 Extension | 254.7 Hz / 193.1 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 180.0 Hz |
| Total Q (Qts) | 0.36 |
| Electrical Q (Qes) | 0.444 |
| Mechanical Q (Qms) | 1.9 |
| Equivalent Volume (Vas) | 1.7 Liters |
| Diaphragm Area (Sd) | 102.0 cm² |
| DC Resistance (Re) | 5.5 Ω |
| Efficiency Bandwidth Product (EBP) | 405.3 |
| Linear Excursion (Xmax) | 2.8 mm |
| Thermal Power (Pe) | 80.0 W |
| Nominal Diameter | 5.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for FaitalPRO M5N8-80?
Load Forge's calculated alignment puts FaitalPRO M5N8-80 in a 1.9 liter vented enclosure tuned to 113.8 Hz, reaching an F3 cutoff of approximately 260.4 Hz.
Can FaitalPRO M5N8-80 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 333.8 Hz.
What port dimensions should be used for FaitalPRO M5N8-80 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 20.3 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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