Audax PR300T4 série vp

12" · 8 Ω · 350 W · 95.6 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	37 Hz
Qts	0.519
Qes	0.57
Qms	5.8
Vas	220 L
Sd	517 cm²
Xmax	4 mm
Re	6.8 Ω
Bl	9.3 T·m
Mms	31.5 g
Pe	350 W
Sensitivity	95.6 dB

Alignment hint

EBP	65 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 256.9 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
Cabasse 30BZ24 vp oriu2	37 =	0.543 +0.02	223 +3	4 =	93.6 -2	close	16 Ω vs 8 Ω: amp load changes · 80 W vs 350 W: lower power handling	+
Davis 31TPG-A	37 =	0.448 -0.07	213 -7	4.5 +0.5	96.5 +0.9	close	150 W vs 350 W: lower power handling	+
Cabasse 30M20	34 -3	0.454 -0.06	220 =	4.6 +0.6	96 +0.4	close	150 W vs 350 W: lower power handling	+
Philips AD1256 vp A	36.9 -0.1	0.59 +0.07	244.9 +24.9	4.3 +0.3	94.7 -0.9	close	40 W vs 350 W: lower power handling	+
Philips AD5200 vp A	36.9 -0.1	0.59 +0.07	244.9 +24.9	4.3 +0.3	94.7 -0.9	close	40 W vs 350 W: lower power handling	+
Davis 31TPA-12G	37 =	0.448 -0.07	213.5 -6.5	4.5 +0.5	97.4 +1.8	close	150 W vs 350 W: lower power handling	+
Davis 31TCA12 vp rc1 g	39 +2	0.477 -0.04	202.9 -17.1	6 +2	96.1 +0.5	close	200 W vs 350 W: lower power handling	+
Alpine 6002CX vp	33.5 -3.5	0.548 +0.03	246.4 +26.4	4.1 +0.1	97 +1.4	close	200 W vs 350 W: lower power handling	+
Audio Dynamique AD31TPA12G	37.2 +0.2	0.448 -0.07	213.6 -6.4	5 +1	97.5 +1.9	close	150 W vs 350 W: lower power handling	+
Cabasse 30BZ18 v1	36 -1	0.616 +0.1	243 +23	4 =	94.8 -0.8	close	80 W vs 350 W: lower power handling	+

Compare the closest 3 against the PR300T4 série vp →

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.