Kartesian WOM300_vDIY

12" · 8 Ω · 250 W · 94.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	37 Hz
Qts	0.362
Qes	0.381
Qms	7.2
Vas	91.7 L
Sd	511 cm²
Xmax	6.4 mm
Re	5.3 Ω
Bl	15.5 T·m
Mms	73.9 g
Pe	250 W
Sensitivity	94.6 dB

Alignment hint

EBP	97 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 32.6 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
PHL Audio 4530P	42 +5	0.36 =	93 +1.3	6 -0.4	96.1 +1.5	close	Xmax 6 mm < 6.4 mm: lower excursion-limited SPL	+
PHL Audio 4531	42 +5	0.36 =	93 +1.3	6 -0.4	96.1 +1.5	close	Xmax 6 mm < 6.4 mm: lower excursion-limited SPL	+
RCF W 300	39.5 +2.5	0.391 +0.03	90 -1.7	6.9 +0.5	96.4 +1.8	close	4 Ω vs 8 Ω: amp load changes	+
PHL Audio 4590	43 +6	0.36 =	90 -1.7	6 -0.4	96.2 +1.6	close	Xmax 6 mm < 6.4 mm: lower excursion-limited SPL	+
Ciare HSB322 4-4	36 -1	0.363 =	83 -8.7	5.4 -1	93 -1.6	close	Xmax 5.4 mm < 6.4 mm: lower excursion-limited SPL	+
Focal 13 WX	33.6 -3.4	0.366 =	89 -2.7	6 -0.4	92.1 -2.5	close	Xmax 6 mm < 6.4 mm: lower excursion-limited SPL	+
Eminence KAPPALITE 3012 LF	37 =	0.324 -0.04	106.7 +15	8.2 +1.8	95.5 +0.9	close		+
Beyma SM112/N vp1	37 =	0.433 +0.07	90 -1.7	7.3 +0.9	92.7 -1.9	close		+
18 Sound 12NTLX3500	39 +2	0.33 -0.03	79.6 -12.1	7.9 +1.5	95.5 +0.9	close		+
Davis 39RCA15 v2024	32.8 -4.2	0.346 -0.02	99.5 +7.8	5.8 -0.6	93.4 -1.2	close	Xmax 5.8 mm < 6.4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the WOM300_vDIY →

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.