RCF L15P200 AK-II
Best box: 94.3 L bass reflex tuned to 42.1 Hz · F3 40.1 Hz
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Comparable 15.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the RCF L15P200 AK-II 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) | 94.3 Liters |
| Tuning Frequency (Fb) | 42.1 Hz |
| F3 (-3 dB Cutoff) | 40.1 Hz |
| F6 / F10 Extension | 36.3 Hz / 32.4 Hz |
| Port Inner Diameter | Ø 15.0 cm |
| Port Physical Length | 21.0 cm |
| First Pipe Resonance | 820.0 Hz |
| Estimated MOL @ F3 | 120.0 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 41.8 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 75.8 Hz |
| F3 (-3 dB Cutoff) | 83.6 Hz |
| F6 / F10 Extension | 59.4 Hz / 42.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 38.0 Hz |
| Total Q (Qts) | 0.34 |
| Electrical Q (Qes) | 0.355 |
| Mechanical Q (Qms) | 8.1 |
| Equivalent Volume (Vas) | 139.0 Liters |
| Diaphragm Area (Sd) | 800.0 cm² |
| DC Resistance (Re) | 6.5 Ω |
| Efficiency Bandwidth Product (EBP) | 107.1 |
| Linear Excursion (Xmax) | 10.0 mm |
| Thermal Power (Pe) | 800.0 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 L15P200 AK-II?
Load Forge's calculated alignment puts RCF L15P200 AK-II in a 94.3 liter vented enclosure tuned to 42.1 Hz, reaching an F3 cutoff of approximately 40.1 Hz.
Can RCF L15P200 AK-II be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 41.8 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 83.6 Hz.
What port dimensions should be used for RCF L15P200 AK-II to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 15.0 cm with a length of 21.0 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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