Morel PRIMO 124

12" · 4 Ω · 350 W · 87.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28 Hz
Qts	0.47
Qes	0.56
Qms	3.1
Vas	85 L
Sd	463 cm²
Xmax	8 mm
Re	3 Ω
Bl	10.23 T·m
Mms	111 g
Pe	350 W
Sensitivity	87.1 dB

Alignment hint

EBP	50 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 67.3 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
Infinity REFERENCE 1240W	25.4 -2.6	0.47 =	84.4 -0.6	11.5 +3.5	86.3 -0.8	close		+
Infinity REFERENCE 1250W	25.4 -2.6	0.47 =	84.4 -0.6	11.5 +3.5	86.3 -0.8	close		+
Morel PRIMO 12	28 =	0.474 =	85 =	8 =	91.5 +4.4	close		+
Focal AUDITOR RSB-300	25 -3	0.466 =	93 +8	10.2 +2.2	87.4 +0.3	close	8 Ω vs 4 Ω: amp load changes	+
Hertz Audio DS 30.3	29 +1	0.51 +0.04	94 +9	9 +1	87.7 +0.6	close	250 W vs 350 W: lower power handling	+
Infinity PRIMUS 1270	29.7 +1.7	0.49 +0.02	75.7 -9.3	11.3 +3.3	87.3 +0.2	close		+
Tymphany LAT 500-04	28 =	0.474 =	81 -4	7.7 -0.3	91.6 +4.5	close	250 W vs 350 W: lower power handling · Xmax 7.7 mm < 8 mm: lower excursion-limited SPL	+
JL Audio 12W6V2-D4	25 -3	0.45 -0.02	79.9 -5.1	12.7 +4.7	86.9 -0.2	close	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio RSS315HF-4	25 -3	0.489 +0.02	85.1 +0.1	10.1 +2.1	89.4 +2.3	close		+
JL Audio 12W1V2-8	24.98 -3.02	0.458 -0.01	100.15 +15.15	9.5 +1.5	86.8 -0.3	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the PRIMO 124 →

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.