Ciare PW257
Best box: 14.7 L bass reflex tuned to 70.7 Hz · F3 72.9 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Ciare PW257 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) | 14.7 Liters |
| Tuning Frequency (Fb) | 70.7 Hz |
| F3 (-3 dB Cutoff) | 72.9 Hz |
| F6 / F10 Extension | 63.9 Hz / 55.6 Hz |
| Port Inner Diameter | Ø 10.0 cm |
| Port Physical Length | 24.9 cm |
| First Pipe Resonance | 691.0 Hz |
| Estimated MOL @ F3 | 116.3 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 6.8 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 129.6 Hz |
| F3 (-3 dB Cutoff) | 124.5 Hz |
| F6 / F10 Extension | 95.1 Hz / 72.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 57.0 Hz |
| Total Q (Qts) | 0.3 |
| Electrical Q (Qes) | 0.331 |
| Mechanical Q (Qms) | 3.2 |
| Equivalent Volume (Vas) | 31.0 Liters |
| Diaphragm Area (Sd) | 353.0 cm² |
| DC Resistance (Re) | 5.21 Ω |
| Efficiency Bandwidth Product (EBP) | 172.2 |
| Linear Excursion (Xmax) | 5.5 mm |
| Thermal Power (Pe) | 400.0 W |
| Nominal Diameter | 10.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Ciare PW257?
Load Forge's calculated alignment puts Ciare PW257 in a 14.7 liter vented enclosure tuned to 70.7 Hz, reaching an F3 cutoff of approximately 72.9 Hz.
Can Ciare PW257 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 6.8 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 124.5 Hz.
What port dimensions should be used for Ciare PW257 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 24.9 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
Embed this design card on DIYAudio, AVSForum, Reddit, or Facebook. It shows the calculated F3, MOL (when the power rating is published) and box parameters.
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