SEAS Excel W26FX-001 E0072
Best box: 10.4 L bass reflex tuned to 46.9 Hz · F3 57.6 Hz
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Comparable 9.5" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the SEAS Excel W26FX-001 E0072 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 (10.4 L at 44.7 Hz) would need a 106.1 cm port; the recommendation is retuned to 10.4 L at 46.9 Hz so the port can be built.
- Port length (95.8 cm) exceeds a straight internal run; use an elbow bend, slotted vent or 3D folded duct to fit the enclosure.
Recommended Bass Reflex (Vented)
PORT NEEDS ELBOW / 3D| Net Box Volume (Vb) | 10.4 Liters |
| Tuning Frequency (Fb) | 46.9 Hz |
| F3 (-3 dB Cutoff) | 57.6 Hz |
| F6 / F10 Extension | 48.3 Hz / 40.8 Hz |
| Port Inner Diameter | Ø 10.0 cm |
| Port Physical Length | 95.8 cm |
| First Pipe Resonance | 180.0 Hz |
| Estimated MOL @ F3 | 110.1 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 6.1 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 86.8 Hz |
| F3 (-3 dB Cutoff) | 87.8 Hz |
| F6 / F10 Extension | 66.4 Hz / 50.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 25.0 Hz |
| Total Q (Qts) | 0.2 |
| Electrical Q (Qes) | 0.222 |
| Mechanical Q (Qms) | 2.0 |
| Equivalent Volume (Vas) | 70.0 Liters |
| Diaphragm Area (Sd) | 290.0 cm² |
| DC Resistance (Re) | 5.5 Ω |
| Efficiency Bandwidth Product (EBP) | 112.5 |
| Linear Excursion (Xmax) | 12.0 mm |
| Thermal Power (Pe) | 300.0 W |
| Nominal Diameter | 9.5" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for SEAS Excel W26FX-001 E0072?
Load Forge's calculated alignment puts SEAS Excel W26FX-001 E0072 in a 10.4 liter vented enclosure tuned to 46.9 Hz, reaching an F3 cutoff of approximately 57.6 Hz.
Can SEAS Excel W26FX-001 E0072 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 6.1 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 87.8 Hz.
What port dimensions should be used for SEAS Excel W26FX-001 E0072 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 95.8 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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