Eminence Delta-12B 12" Driver 16 Ohm
Best box: 130.4 L bass reflex tuned to 47.2 Hz · F3 44.0 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Eminence Delta-12B 12" Driver 16 Ohm 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 (130.4 L) requires extensive internal matrix bracing to prevent panel resonance.
- Limited linear excursion (Xmax: 2.7 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 130.4 Liters |
| Tuning Frequency (Fb) | 47.2 Hz |
| F3 (-3 dB Cutoff) | 44.0 Hz |
| F6 / F10 Extension | 39.3 Hz / 35.0 Hz |
| Port Inner Diameter | Ø 12.5 cm |
| Port Physical Length | 3.7 cm |
| First Pipe Resonance | 4618.0 Hz |
| Estimated MOL @ F3 | 113.7 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 74.3 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 78.4 Hz |
| F3 (-3 dB Cutoff) | 79.3 Hz |
| F6 / F10 Extension | 60.2 Hz / 45.6 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 58.0 Hz |
| Total Q (Qts) | 0.48 |
| Electrical Q (Qes) | 0.515 |
| Mechanical Q (Qms) | 7.04 |
| Equivalent Volume (Vas) | 86.9 Liters |
| Diaphragm Area (Sd) | 519.5 cm² |
| DC Resistance (Re) | 11.4 Ω |
| Efficiency Bandwidth Product (EBP) | 112.6 |
| Linear Excursion (Xmax) | 2.7 mm |
| Thermal Power (Pe) | 400.0 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 Delta-12B 12" Driver 16 Ohm?
Load Forge's calculated alignment puts Eminence Delta-12B 12" Driver 16 Ohm in a 130.4 liter vented enclosure tuned to 47.2 Hz, reaching an F3 cutoff of approximately 44.0 Hz.
Can Eminence Delta-12B 12" Driver 16 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 74.3 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 79.3 Hz.
What port dimensions should be used for Eminence Delta-12B 12" Driver 16 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 12.5 cm with a length of 3.7 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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