Eminence 290-4810--eminence-legend-bp122-cabinet-design
Best box: 236.1 L bass reflex tuned to 25.9 Hz · F3 27.6 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Eminence 290-4810--eminence-legend-bp122-cabinet-design 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
- Large enclosure volume (236.1 L) requires extensive internal matrix bracing to prevent panel resonance.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 236.1 Liters |
| Tuning Frequency (Fb) | 25.9 Hz |
| F3 (-3 dB Cutoff) | 27.6 Hz |
| F6 / F10 Extension | 22.4 Hz / 19.5 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 2.0 cm |
| First Pipe Resonance | 8551.0 Hz |
| Estimated MOL @ F3 | 113.5 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 220.4 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 43.7 Hz |
| F3 (-3 dB Cutoff) | 44.8 Hz |
| F6 / F10 Extension | 33.8 Hz / 25.5 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 35.4 Hz |
| Total Q (Qts) | 0.54 |
| Electrical Q (Qes) | 0.573 |
| Mechanical Q (Qms) | 9.26 |
| Equivalent Volume (Vas) | 157.4 Liters |
| Diaphragm Area (Sd) | 532.4 cm² |
| DC Resistance (Re) | 5.66 Ω |
| Efficiency Bandwidth Product (EBP) | 61.7 |
| Linear Excursion (Xmax) | 6.2 mm |
| Thermal Power (Pe) | 250.0 W |
| Nominal Diameter | 12.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Eminence 290-4810--eminence-legend-bp122-cabinet-design?
Load Forge's calculated alignment puts Eminence 290-4810--eminence-legend-bp122-cabinet-design in a 236.1 liter vented enclosure tuned to 25.9 Hz, reaching an F3 cutoff of approximately 27.6 Hz.
Can Eminence 290-4810--eminence-legend-bp122-cabinet-design be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 220.4 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 44.8 Hz.
What port dimensions should be used for Eminence 290-4810--eminence-legend-bp122-cabinet-design to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 2.0 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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