Eminence EMIDLIT2512_PK4
Best box: 147.0 L sealed · Fc 52.3 Hz · F3 44.6 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Eminence EMIDLIT2512_PK4 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Textbook Bass Reflex — not recommended (12.7 dB bass hump)
PORT BUILDABLE| Net Box Volume (Vb) | 117.6 Liters |
| Tuning Frequency (Fb) | 31.4 Hz |
| F3 (-3 dB Cutoff) | 52.3 Hz |
| F6 / F10 Extension | 49.0 Hz / 44.2 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 4.5 cm |
| First Pipe Resonance | 3800.0 Hz |
| Estimated MOL @ F3 | 112.1 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 4.0 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 5.657; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 147.0 Liters |
| System Q (Qtc) | 5.657 (above Butterworth: Qtc cannot fall below Qts (4.00)) |
| System Resonance (Fc) | 52.3 Hz |
| F3 (-3 dB Cutoff) | 44.6 Hz |
| F6 / F10 Extension | 41.9 Hz / 38.3 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 37.0 Hz |
| Total Q (Qts) | 4.0 |
| Electrical Q (Qes) | 6.0 |
| Mechanical Q (Qms) | 12.0 |
| Equivalent Volume (Vas) | 147.0 Liters |
| Diaphragm Area (Sd) | 519.5 cm² |
| DC Resistance (Re) | 12.0 Ω |
| Efficiency Bandwidth Product (EBP) | 6.2 |
| Linear Excursion (Xmax) | 4.9 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 EMIDLIT2512_PK4?
A simple ported box is not recommended for Eminence EMIDLIT2512_PK4: the textbook alignment (117.6 liters tuned to 31.4 Hz) needs a 4.5 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can Eminence EMIDLIT2512_PK4 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 147.0 liters with a Qtc of 5.657 (above Butterworth: Qtc cannot fall below Qts (4.00)), the system exhibits an F3 of 44.6 Hz.
What port dimensions should be used for Eminence EMIDLIT2512_PK4 to avoid port chuffing?
A straight 6.8 cm port would need 4.5 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
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