Audax PR300T4 vp série

12" · 8 Ω · 350 W · 94.7 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	36 Hz
Qts	0.349
Qes	0.38
Qms	4.23
Vas	114 L
Sd	521 cm²
Xmax	4 mm
Re	6 Ω
Bl	15.3 T·m
Mms	65.2 g
Pe	350 W
Sensitivity	94.7 dB

Alignment hint

EBP	95 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 36.7 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
MCM Electronics 55-2952	38 +2	0.338 -0.01	108 -6	3.8 -0.2	94.3 -0.4	close	175 W vs 350 W: lower power handling · Xmax 3.8 mm < 4 mm: lower excursion-limited SPL	+
Beyma 12BR70	35 -1	0.355 +0.01	135 +21	4.8 +0.8	94.7 =	close	125 W vs 350 W: lower power handling	+
Beyma 12BR70 v2	35 -1	0.355 +0.01	100 -14	4.1 +0.1	93.4 -1.3	close	125 W vs 350 W: lower power handling	+
Audio Dynamique 320/75	32 -4	0.341 -0.01	116 +2	5 +1	93.8 -0.9	close	150 W vs 350 W: lower power handling	+
Audax PR330M0 vp1	37.7 +1.7	0.326 -0.02	95.9 -18.1	4 =	95 +0.3	close	150 W vs 350 W: lower power handling	+
Beyma 12BR70 vp jp	33.7 -2.3	0.365 +0.02	104 -10	4.4 +0.4	93.1 -1.6	close	125 W vs 350 W: lower power handling	+
Ardan W PRO-31	36.8 +0.8	0.373 +0.02	133.9 +19.9	6 +2	94.6 -0.1	close	200 W vs 350 W: lower power handling	+
JBL GT 122	33 -3	0.35 =	101 -13	5.1 +1.1	96.3 +1.6	close	4 Ω vs 8 Ω: amp load changes · 140 W vs 350 W: lower power handling	+
Eminence KAPPALITE 3012 LF	37 +1	0.324 -0.02	106.7 -7.3	8.2 +4.2	95.5 +0.8	close		+
Kartesian WOM300_vDIY	37 +1	0.362 +0.01	91.7 -22.3	6.4 +2.4	94.6 -0.1	close	250 W vs 350 W: lower power handling	+

Compare the closest 3 against the PR300T4 vp série →

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.