Cerwin-Vega HED-12 4

12" · 4 Ω · 300 W · 90.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28 Hz
Qts	0.565
Qes	0.64
Qms	4.8
Vas	105 L
Sd	450 cm²
Xmax	6 mm
Re	3.9 Ω
Bl	9.7 T·m
Mms	87.3 g
Pe	300 W
Sensitivity	90.7 dB

Alignment hint

EBP	44 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 185.4 L

EBP < 50: favours a sealed (closed) 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
JL Audio 12WX-4	27 -1	0.562 =	94.5 -10.5	8.5 +2.5	90.5 -0.2	close	200 W vs 300 W: lower power handling	+
JBL GT3-12	28.2 +0.2	0.541 -0.02	100.5 -4.5	8.2 +2.2	91.8 +1.1	close	225 W vs 300 W: lower power handling	+
Kicker ES124	30.4 +2.4	0.549 -0.02	97.7 -7.3	6.2 +0.2	92.2 +1.5	close	125 W vs 300 W: lower power handling	+
Rockford Fosgate P1S412	25 -3	0.537 -0.03	109 +4	9 +3	90.4 -0.3	close		+
Rockford Fosgate P112S4	25 -3	0.52 -0.04	110 +5	7.3 +1.3	90.6 -0.1	close	150 W vs 300 W: lower power handling	+
Peerless XXLS-P830845	27 -1	0.517 -0.05	119.5 +14.5	7.6 +1.6	89.8 -0.9	close	8 Ω vs 4 Ω: amp load changes · 175 W vs 300 W: lower power handling	+
Alpine SWE-1244E	31 +3	0.53 -0.03	102.5 -2.5	7.5 +1.5	88.7 -2	close	200 W vs 300 W: lower power handling	+
MTX Audio T4124A	29.3 +1.3	0.549 -0.02	118.8 +13.8	8.4 +2.4	92.9 +2.2	close	200 W vs 300 W: lower power handling	+
Phoenix Gold RYVAL V12D	30 +2	0.552 -0.01	81.9 -23.1	6.4 +0.4	91.4 +0.7	close	150 W vs 300 W: lower power handling	+
JBL CS1214	28 =	0.536 -0.03	76.7 -28.3	6.1 +0.1	90.2 -0.5	close		+

Compare the closest 3 against the HED-12 4 →

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.