Ciare CSW7015
Best box: 132.7 L bass reflex tuned to 27.2 Hz · F3 26.5 Hz
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Comparable 15.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Ciare CSW7015 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
⚠️ Engineering Notice for Builders
- The textbook alignment (132.7 L at 25.9 Hz) would need a 48.8 cm port; the recommendation is retuned to 132.7 L at 27.2 Hz so the port can be built.
- Large enclosure volume (132.7 L) requires extensive internal matrix bracing to prevent panel resonance.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 132.7 Liters |
| Tuning Frequency (Fb) | 27.2 Hz |
| F3 (-3 dB Cutoff) | 26.5 Hz |
| F6 / F10 Extension | 23.6 Hz / 20.8 Hz |
| Port Inner Diameter | Ø 15.0 cm |
| Port Physical Length | 43.2 cm |
| First Pipe Resonance | 398.0 Hz |
| Estimated MOL @ F3 | 116.9 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 58.4 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 47.3 Hz |
| F3 (-3 dB Cutoff) | 48.8 Hz |
| F6 / F10 Extension | 36.7 Hz / 27.6 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 24.0 Hz |
| Total Q (Qts) | 0.35 |
| Electrical Q (Qes) | 0.375 |
| Mechanical Q (Qms) | 5.2 |
| Equivalent Volume (Vas) | 180.0 Liters |
| Diaphragm Area (Sd) | 855.0 cm² |
| DC Resistance (Re) | 3.6 Ω |
| Efficiency Bandwidth Product (EBP) | 64.0 |
| Linear Excursion (Xmax) | 16.0 mm |
| Thermal Power (Pe) | 1000.0 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 Ciare CSW7015?
Load Forge's calculated alignment puts Ciare CSW7015 in a 132.7 liter vented enclosure tuned to 27.2 Hz, reaching an F3 cutoff of approximately 26.5 Hz.
Can Ciare CSW7015 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 58.4 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 48.8 Hz.
What port dimensions should be used for Ciare CSW7015 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 15.0 cm with a length of 43.2 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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