SEAS L22RN4X/P
Best box: 31.1 L bass reflex tuned to 39.9 Hz · F3 40.9 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the SEAS L22RN4X/P 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) | 31.1 Liters |
| Tuning Frequency (Fb) | 39.9 Hz |
| F3 (-3 dB Cutoff) | 40.9 Hz |
| F6 / F10 Extension | 35.8 Hz / 31.2 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 17.1 cm |
| First Pipe Resonance | 1004.0 Hz |
| Estimated MOL @ F3 | 108.7 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 13.9 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 72.8 Hz |
| F3 (-3 dB Cutoff) | 74.3 Hz |
| F6 / F10 Extension | 56.0 Hz / 42.2 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 35.0 Hz |
| Total Q (Qts) | 0.33 |
| Electrical Q (Qes) | 0.361 |
| Mechanical Q (Qms) | 3.8 |
| Equivalent Volume (Vas) | 50.0 Liters |
| Diaphragm Area (Sd) | 220.0 cm² |
| DC Resistance (Re) | 6.4 Ω |
| Efficiency Bandwidth Product (EBP) | 96.9 |
| Linear Excursion (Xmax) | 8.5 mm |
| Thermal Power (Pe) | 180.0 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 SEAS L22RN4X/P?
Load Forge's calculated alignment puts SEAS L22RN4X/P in a 31.1 liter vented enclosure tuned to 39.9 Hz, reaching an F3 cutoff of approximately 40.9 Hz.
Can SEAS L22RN4X/P be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 13.9 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 74.3 Hz.
What port dimensions should be used for SEAS L22RN4X/P to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 17.1 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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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