Eminence DeltaLite II 2512
woofer · EBP 84 → suits either box · nominal (full) — Eminence DeltaLite II 2512 datasheet (manufacturer)
Thiele/Small parameters
| Fs (resonance) | 37 Hz |
| Qts | 0.39 |
| Qes / Qms | 0.44 / 3.13 |
| Vas | 147.0 L |
| Re / nominal Z | 5.04 Ω / 8 Ω |
| Xmax | 4.9 mm |
| Sensitivity | 94.1 dB (1 W/1 m, calc); 99.9 dB (2.83 V/1 m, mfr) |
| Power handling | 250 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building. datasheet
Recommended enclosures
| Sealed (Qtc 0.707) — Vb | 64.3 L |
| Sealed — Fc / F3 | 67.1 / 67.1 Hz |
| Ported (suggested) — Vb | 131.5 L |
| Ported — Fb / F3 | 38.3 / 37.9 Hz |
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About this driver
The Eminence DeltaLite II 2512 is a 12″ woofer with a free-air resonance of 37 Hz and a total Q (Qts) of 0.39. Its efficiency-bandwidth product (EBP) of 84 points toward either alignment. In a 64.3 L sealed box it reaches an F3 of 67.1 Hz (Qtc 0.707); a suggested 131.5 L box tuned to 38.3 Hz extends to about 37.9 Hz. See the sealed vs ported guide for how to choose.
NOMINAL/manufacturer (Eminence official datasheet). Fs 37 Hz; Vas 147 L; Sd 519.5 cm2; BL 11.3 Tm; Mms 49 g; sensitivity 99.9 dB (1W/1m, 8 ohm => 2.83V/1m); usable 48-4000 Hz; Xlim 8.5 mm. Neodymium PA/bass-guitar. Earlier seed values (Fs 44, Qts 0.41, 96 dB, via Q Components) were an older/retailer spec - superseded by the current Eminence datasheet here.
Recommended partners
modeled estimateThe tweeters below pair well with the Eminence DeltaLite II 2512 in a two-way design — each grade is a modeled estimate of the crossover match, with a suggested crossover point. Open any pair in the guided builder to design the crossover and total the parts.
- Dayton Audio RS28F-4Moderate match· 56/100
Suggested crossover 818 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas 27TBFC/G H1212-06Moderate match· 55/100
Suggested crossover 825 Hz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SB29RDC-C000-4Poor match· 50/100
Suggested crossover 900 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Peerless by Tymphany D27TG35-06Poor match· 29/100
Suggested crossover 1.37 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio ND25FA-4Incompatible· 0/100
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair →
Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.