Ciare 293-207
Best box: 0.6 L sealed · Fc 601.2 Hz · F3 505.7 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Ciare 293-207 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Textbook Bass Reflex — not recommended (15.9 dB bass hump)
PORT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 361.3 Hz |
| F3 (-3 dB Cutoff) | 454.9 Hz |
| F6 / F10 Extension | 401.3 Hz / 273.0 Hz |
| Port Inner Diameter | Ø 12.5 cm |
| Port Physical Length | 9.8 cm |
| First Pipe Resonance | 1746.0 Hz |
| Estimated MOL @ F3 | 122.7 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 2.21 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 3.125; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 0.6 Liters |
| System Q (Qtc) | 3.125 (above Butterworth: Qtc cannot fall below Qts (2.21)) |
| System Resonance (Fc) | 601.2 Hz |
| F3 (-3 dB Cutoff) | 505.7 Hz |
| F6 / F10 Extension | 462.1 Hz / 407.2 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 425.1 Hz |
| Total Q (Qts) | 2.21 |
| Electrical Q (Qes) | 3.672 |
| Mechanical Q (Qms) | 5.55 |
| Equivalent Volume (Vas) | 0.6 Liters |
| Diaphragm Area (Sd) | 220.0 cm² |
| DC Resistance (Re) | 5.72 Ω |
| Efficiency Bandwidth Product (EBP) | 115.8 |
| Linear Excursion (Xmax) | 4.0 mm |
| Thermal Power (Pe) | 125.0 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 293-207?
A simple ported box is not recommended for Ciare 293-207: the textbook alignment (1.5 liters tuned to 361.3 Hz) needs a 9.8 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can Ciare 293-207 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.6 liters with a Qtc of 3.125 (above Butterworth: Qtc cannot fall below Qts (2.21)), the system exhibits an F3 of 505.7 Hz.
What port dimensions should be used for Ciare 293-207 to avoid port chuffing?
A straight 12.5 cm port would need 9.8 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
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