STX W.25.300.8.MC_v2
Best box: 25.6 L bass reflex tuned to 55.2 Hz · F3 76.0 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the STX W.25.300.8.MC_v2 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) | 25.6 Liters |
| Tuning Frequency (Fb) | 55.2 Hz |
| F3 (-3 dB Cutoff) | 76.0 Hz |
| F6 / F10 Extension | 62.7 Hz / 48.4 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 9.1 cm |
| First Pipe Resonance | 1891.0 Hz |
| Estimated MOL @ F3 | 113.5 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.68 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.962; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 32.0 Liters |
| System Q (Qtc) | 0.962 (above Butterworth) |
| System Resonance (Fc) | 91.9 Hz |
| F3 (-3 dB Cutoff) | 75.2 Hz |
| F6 / F10 Extension | 61.5 Hz / 48.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 65.0 Hz |
| Total Q (Qts) | 0.68 |
| Electrical Q (Qes) | 0.785 |
| Mechanical Q (Qms) | 5.1 |
| Equivalent Volume (Vas) | 32.0 Liters |
| Diaphragm Area (Sd) | 346.0 cm² |
| DC Resistance (Re) | 5.7 Ω |
| Efficiency Bandwidth Product (EBP) | 82.8 |
| Linear Excursion (Xmax) | 4.0 mm |
| Thermal Power (Pe) | 150.0 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 STX W.25.300.8.MC_v2?
Load Forge's calculated alignment puts STX W.25.300.8.MC_v2 in a 25.6 liter vented enclosure tuned to 55.2 Hz, reaching an F3 cutoff of approximately 76.0 Hz.
Can STX W.25.300.8.MC_v2 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 32.0 liters with a Qtc of 0.962 (above Butterworth), the system exhibits an F3 of 75.2 Hz.
What port dimensions should be used for STX W.25.300.8.MC_v2 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 9.1 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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