SEAS OR002-04 FA6RBND/S
Best box: 1.5 L bass reflex tuned to 83.9 Hz · F3 75.0 Hz
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Comparable 2.4" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the SEAS OR002-04 FA6RBND/S 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
- Port length (52.2 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) | 1.5 Liters |
| Tuning Frequency (Fb) | 83.9 Hz |
| F3 (-3 dB Cutoff) | 75.0 Hz |
| F6 / F10 Extension | 69.9 Hz / 64.1 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 52.2 cm |
| First Pipe Resonance | 330.0 Hz |
| Estimated MOL @ F3 | 91.2 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 0.54 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 149.6 Hz |
| F3 (-3 dB Cutoff) | 155.1 Hz |
| F6 / F10 Extension | 116.1 Hz / 87.1 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 109.0 Hz |
| Total Q (Qts) | 0.51 |
| Electrical Q (Qes) | 0.602 |
| Mechanical Q (Qms) | 3.33 |
| Equivalent Volume (Vas) | 0.5 Liters |
| Diaphragm Area (Sd) | 17.4 cm² |
| DC Resistance (Re) | 3.96 Ω |
| Efficiency Bandwidth Product (EBP) | 181.0 |
| Linear Excursion (Xmax) | 4.3 mm |
| Thermal Power (Pe) | 12.0 W |
| Nominal Diameter | 2.4" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for SEAS OR002-04 FA6RBND/S?
Load Forge's calculated alignment puts SEAS OR002-04 FA6RBND/S in a 1.5 liter vented enclosure tuned to 83.9 Hz, reaching an F3 cutoff of approximately 75.0 Hz.
Can SEAS OR002-04 FA6RBND/S be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.54 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 155.1 Hz.
What port dimensions should be used for SEAS OR002-04 FA6RBND/S to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 52.2 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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