Davis 31TPA vp nº2 dats v2

12" · 8 Ω · 150 W · 95.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	46.4 Hz
Qts	0.437
Qes	0.529
Qms	2.526
Vas	96.4 L
Sd	535 cm²
Xmax	4.4 mm
Re	6.09 Ω
Bl	12.8 T·m
Mms	48.9 g
Pe	150 W
Sensitivity	95.8 dB

Alignment hint

EBP	88 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 59.6 L

EBP 50-100: works in either a sealed or ported alignment.

Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.

Substitute candidates

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Eminence DELTA 12 LF v1	45 -1.4	0.424 -0.01	95.5 -0.9	4.6 +0.2	96.1 +0.3	close		+
Davis 31TCA12 v2015	48.5 +2.1	0.442 +0.01	92.3 -4.1	5 +0.6	96.5 +0.7	close		+
Audax 330	48.1 +1.7	0.468 +0.03	93.7 -2.7	4.5 +0.1	95.9 +0.1	close		+
PHL Audio 4530 vp clio p	47.1 +0.7	0.46 +0.02	93.2 -3.2	6 +1.6	95.7 -0.1	close		+
PHL Audio 4530 vp	45.8 -0.6	0.45 +0.01	104.5 +8.1	6 +1.6	95.8 =	close		+
Audax 330 vp	45.8 -0.6	0.454 +0.02	86.8 -9.6	4.3 -0.1	95 -0.8	close	Xmax 4.3 mm < 4.4 mm: lower excursion-limited SPL	+
Davis 31TCA12 vp 2018 CLIO POCKET	45.8 -0.6	0.455 +0.02	86.8 -9.6	5 +0.6	95 -0.8	close		+
Fane SOVEREIGN 12-200	45 -1.4	0.443 +0.01	104.8 +8.4	5.5 +1.1	97 +1.2	close		+
Beyma SM112/N v2012	43 -3.4	0.434 =	94 -2.4	7.3 +2.9	95.3 -0.5	close		+
Beyma 12BR70 vp	49.1 +2.7	0.461 +0.02	95.8 -0.6	4 -0.4	96.3 +0.5	close	Xmax 4 mm < 4.4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 31TPA vp nº2 dats v2 →

Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.

Used in enclosures (0)

No enclosure in the catalog uses this driver yet.