P.Audio E12-200S v2
Best box: 33.7 L bass reflex tuned to 55.2 Hz · F3 82.6 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the P.Audio E12-200S v2 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) | 33.7 Liters |
| Tuning Frequency (Fb) | 55.2 Hz |
| F3 (-3 dB Cutoff) | 82.6 Hz |
| F6 / F10 Extension | 68.6 Hz / 52.6 Hz |
| Port Inner Diameter | Ø 7.5 cm |
| Port Physical Length | 7.5 cm |
| First Pipe Resonance | 2283.0 Hz |
| Estimated MOL @ F3 | 116.9 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.69 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.976; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 42.2 Liters |
| System Q (Qtc) | 0.976 (above Butterworth) |
| System Resonance (Fc) | 91.9 Hz |
| F3 (-3 dB Cutoff) | 79.6 Hz |
| F6 / F10 Extension | 65.9 Hz / 52.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 65.0 Hz |
| Total Q (Qts) | 0.69 |
| Electrical Q (Qes) | 0.757 |
| Mechanical Q (Qms) | 7.82 |
| Equivalent Volume (Vas) | 42.2 Liters |
| Diaphragm Area (Sd) | 531.0 cm² |
| DC Resistance (Re) | 5.8 Ω |
| Efficiency Bandwidth Product (EBP) | 85.9 |
| Linear Excursion (Xmax) | 4.1 mm |
| Thermal Power (Pe) | 200.0 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 P.Audio E12-200S v2?
Load Forge's calculated alignment puts P.Audio E12-200S v2 in a 33.7 liter vented enclosure tuned to 55.2 Hz, reaching an F3 cutoff of approximately 82.6 Hz.
Can P.Audio E12-200S v2 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 42.2 liters with a Qtc of 0.976 (above Butterworth), the system exhibits an F3 of 79.6 Hz.
What port dimensions should be used for P.Audio E12-200S v2 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 7.5 cm with a length of 7.5 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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