RCF MB15H401
Best box: 57.3 L bass reflex tuned to 54.6 Hz · F3 59.4 Hz
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Comparable 15.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the RCF MB15H401 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 57.3 Liters |
| Tuning Frequency (Fb) | 54.6 Hz |
| F3 (-3 dB Cutoff) | 59.4 Hz |
| F6 / F10 Extension | 51.2 Hz / 43.9 Hz |
| Port Inner Diameter | Ø 15.0 cm |
| Port Physical Length | 20.3 cm |
| First Pipe Resonance | 848.0 Hz |
| Estimated MOL @ F3 | 122.0 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 26.6 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 97.6 Hz |
| F3 (-3 dB Cutoff) | 98.5 Hz |
| F6 / F10 Extension | 76.3 Hz / 58.4 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 44.0 Hz |
| Total Q (Qts) | 0.3 |
| Electrical Q (Qes) | 0.32 |
| Mechanical Q (Qms) | 4.8 |
| Equivalent Volume (Vas) | 121.0 Liters |
| Diaphragm Area (Sd) | 900.0 cm² |
| DC Resistance (Re) | 5.4 Ω |
| Efficiency Bandwidth Product (EBP) | 137.5 |
| Linear Excursion (Xmax) | 8.0 mm |
| Thermal Power (Pe) | 700.0 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 RCF MB15H401?
Load Forge's calculated alignment puts RCF MB15H401 in a 57.3 liter vented enclosure tuned to 54.6 Hz, reaching an F3 cutoff of approximately 59.4 Hz.
Can RCF MB15H401 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 26.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 98.5 Hz.
What port dimensions should be used for RCF MB15H401 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 15.0 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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