Morel PRIMO 12

12" · 4 Ω · 350 W · 91.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28 Hz
Qts	0.474
Qes	0.56
Qms	3.1
Vas	85 L
Sd	434 cm²
Xmax	8 mm
Re	3 Ω
Bl	9.7 T·m
Mms	100.4 g
Pe	350 W
Sensitivity	91.5 dB

Alignment hint

EBP	50 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 69.4 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
Tymphany LAT 500-04	28 =	0.474 =	81 -4	7.7 -0.3	91.6 +0.1	close	250 W vs 350 W: lower power handling · Xmax 7.7 mm < 8 mm: lower excursion-limited SPL	+
Rythmik Audio DS1200	26 -2	0.444 -0.03	88 +3	8.8 +0.8	91.7 +0.2	close		+
Morel PRIMO 124	28 =	0.47 =	85 =	8 =	87.1 -4.4	close		+
Infinity 1230W	27.3 -0.7	0.437 -0.04	78.5 -6.5	7.9 -0.1	91 -0.5	close	Xmax 7.9 mm < 8 mm: lower excursion-limited SPL	+
Nakamichi SP-W30S	27.8 -0.2	0.464 -0.01	92.3 +7.3	6.6 -1.4	91.3 -0.2	close	200 W vs 350 W: lower power handling · Xmax 6.6 mm < 8 mm: lower excursion-limited SPL	+
JL Audio 12W3V3-4	26.7 -1.3	0.446 -0.03	80.6 -4.4	10.9 +2.9	90.6 -0.9	close		+
Focal P30F	28 =	0.467 -0.01	70 -15	9.1 +1.1	90.1 -1.4	close		+
Magnat POWER BULL 300	33 +5	0.479 +0.01	82 -3	8.1 +0.1	93 +1.5	close		+
Dayton Audio RSS315HF-4	25 -3	0.489 +0.02	85.1 +0.1	10.1 +2.1	89.4 -2.1	close		+
Rockford Fosgate S2-124	27 -1	0.498 +0.02	77 -8	10.7 +2.7	89.9 -1.6	close		+

Compare the closest 3 against the PRIMO 12 →

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.