Fane SOVEREIGN 12-200LT
Best box: 62.4 L bass reflex tuned to 42.5 Hz · F3 57.2 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Fane SOVEREIGN 12-200LT 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) | 62.4 Liters |
| Tuning Frequency (Fb) | 42.5 Hz |
| F3 (-3 dB Cutoff) | 57.2 Hz |
| F6 / F10 Extension | 46.8 Hz / 36.3 Hz |
| Port Inner Diameter | Ø 7.5 cm |
| Port Physical Length | 6.4 cm |
| First Pipe Resonance | 2693.0 Hz |
| Estimated MOL @ F3 | 115.2 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.64 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.905; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 78.1 Liters |
| System Q (Qtc) | 0.905 (above Butterworth) |
| System Resonance (Fc) | 70.7 Hz |
| F3 (-3 dB Cutoff) | 58.6 Hz |
| F6 / F10 Extension | 47.3 Hz / 37.3 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 50.0 Hz |
| Total Q (Qts) | 0.64 |
| Electrical Q (Qes) | 0.699 |
| Mechanical Q (Qms) | 7.6 |
| Equivalent Volume (Vas) | 78.1 Liters |
| Diaphragm Area (Sd) | 530.9 cm² |
| DC Resistance (Re) | 7.2 Ω |
| Efficiency Bandwidth Product (EBP) | 71.5 |
| Linear Excursion (Xmax) | 5.2 mm |
| Thermal Power (Pe) | 200.0 W |
| Nominal Diameter | 12.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Fane SOVEREIGN 12-200LT?
Load Forge's calculated alignment puts Fane SOVEREIGN 12-200LT in a 62.4 liter vented enclosure tuned to 42.5 Hz, reaching an F3 cutoff of approximately 57.2 Hz.
Can Fane SOVEREIGN 12-200LT be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 78.1 liters with a Qtc of 0.905 (above Butterworth), the system exhibits an F3 of 58.6 Hz.
What port dimensions should be used for Fane SOVEREIGN 12-200LT to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 7.5 cm with a length of 6.4 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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