Ciare FXI8.50W
Best box: 5.6 L bass reflex tuned to 103.7 Hz · F3 107.8 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Ciare FXI8.50W 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) | 5.6 Liters |
| Tuning Frequency (Fb) | 103.7 Hz |
| F3 (-3 dB Cutoff) | 107.8 Hz |
| F6 / F10 Extension | 94.4 Hz / 82.0 Hz |
| Port Inner Diameter | Ø 7.5 cm |
| Port Physical Length | 16.6 cm |
| First Pipe Resonance | 1034.0 Hz |
| Estimated MOL @ F3 | 114.6 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 2.6 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 189.9 Hz |
| F3 (-3 dB Cutoff) | 181.2 Hz |
| F6 / F10 Extension | 138.7 Hz / 105.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 81.0 Hz |
| Total Q (Qts) | 0.29 |
| Electrical Q (Qes) | 0.317 |
| Mechanical Q (Qms) | 3.4 |
| Equivalent Volume (Vas) | 13.0 Liters |
| Diaphragm Area (Sd) | 214.0 cm² |
| DC Resistance (Re) | 5.7 Ω |
| Efficiency Bandwidth Product (EBP) | 255.5 |
| Linear Excursion (Xmax) | 4.5 mm |
| Thermal Power (Pe) | 220.0 W |
| Nominal Diameter | 8.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Ciare FXI8.50W?
Load Forge's calculated alignment puts Ciare FXI8.50W in a 5.6 liter vented enclosure tuned to 103.7 Hz, reaching an F3 cutoff of approximately 107.8 Hz.
Can Ciare FXI8.50W be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 2.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 181.2 Hz.
What port dimensions should be used for Ciare FXI8.50W to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 7.5 cm with a length of 16.6 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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