Vented Specialist

Ciare CME250

Best box: 111.0 L bass reflex tuned to 39.0 Hz · F3 36.1 Hz

Predicted SPL response of the Ciare CME250 in the recommended 111.0 L bass reflex box versus the alternative — open it in the simulator Open and tweak this box live ↗

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Recommended Bass Reflex (Vented)

PORT BUILDABLE
Net Box Volume (Vb) 111.0 Liters
Tuning Frequency (Fb) 39.0 Hz
F3 (-3 dB Cutoff) 36.1 Hz
F6 / F10 Extension 32.5 Hz / 29.0 Hz
Port Inner Diameter Ø 7.5 cm
Port Physical Length 2.5 cm
First Pipe Resonance 6932.0 Hz
Estimated MOL @ F3 111.6 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 63.3 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 67.2 Hz
F3 (-3 dB Cutoff) 63.1 Hz
F6 / F10 Extension 47.5 Hz / 35.8 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 48.0 Hz
Total Q (Qts) 0.48
Electrical Q (Qes) 0.524
Mechanical Q (Qms) 5.7
Equivalent Volume (Vas) 74.0 Liters
Diaphragm Area (Sd) 380.0 cm²
DC Resistance (Re) 3.0 Ω
Efficiency Bandwidth Product (EBP) 91.6
Linear Excursion (Xmax) 4.5 mm
Thermal Power (Pe) 220.0 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 CME250?

Load Forge's calculated alignment puts Ciare CME250 in a 111.0 liter vented enclosure tuned to 39.0 Hz, reaching an F3 cutoff of approximately 36.1 Hz.

Can Ciare CME250 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 63.3 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 63.1 Hz.

What port dimensions should be used for Ciare CME250 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 7.5 cm with a length of 2.5 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.

Ciare CME250 Enclosure Card
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