Dayton Audio MX12-22

12" · 4 Ω · 600 W · 89.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	28.8 Hz
Qts	0.348
Qes	0.39
Qms	3.25
Vas	45.6 L
Sd	514.7 cm²
Xmax	7.4 mm
Re	3.95 Ω
Bl	21.4 T·m
Mms	248.8 g
Pe	600 W
Sensitivity	89.5 dB

Alignment hint

EBP	74 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 14.6 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
Dayton Audio SS12-22	27 -1.8	0.351 =	49.4 +3.8	9.6 +2.2	88.1 -1.4	close	8 Ω vs 4 Ω: amp load changes	+
Ground Zero GZRW 12XS-AL	30 +1.2	0.395 +0.05	52 +6.4	8.9 +1.5	90.4 +0.9	close		+
MTX Audio TX612	27 -1.8	0.393 +0.05	42.7 -2.9	9.7 +2.3	91 +1.5	close		+
B&C 12 FG 100	34 +5.2	0.362 +0.01	49 +3.4	9.5 +2.1	91 +1.5	close	8 Ω vs 4 Ω: amp load changes	+
B&C 12FG100	34 +5.2	0.36 +0.01	49 +3.4	10.3 +2.9	91 +1.5	close	8 Ω vs 4 Ω: amp load changes	+
Audiobahn AW120T	32.4 +3.6	0.39 +0.04	45 -0.6	9 +1.6	87.5 -2	close		+
Max Speaker MF300/77S4	26.4 -2.4	0.383 +0.04	53.1 +7.5	6.7 -0.7	89 -0.5	close	300 W vs 600 W: lower power handling · Xmax 6.7 mm < 7.4 mm: lower excursion-limited SPL	+
DLS ULTIMATE IRIDIUM 12	33.8 +5	0.386 +0.04	49.2 +3.6	7 -0.4	88.8 -0.7	close	8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 7.4 mm: lower excursion-limited SPL	+
Ground Zero GZRW 30SPL vp	33.3 +4.5	0.357 +0.01	52 +6.4	9.1 +1.7	92 +2.5	usable	8 Ω vs 4 Ω: amp load changes	+
JBL P1220	28.7 -0.1	0.448 +0.1	47.4 +1.8	7.8 +0.4	91.8 +2.3	usable	2 Ω vs 4 Ω: amp load changes · 400 W vs 600 W: lower power handling	+

Compare the closest 3 against the MX12-22 →

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.