Audio Dynamique 320/75

12" · 8 Ω · 150 W · 93.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	32 Hz
Qts	0.341
Qes	0.36
Qms	6.6
Vas	116 L
Sd	460 cm²
Xmax	5 mm
Re	5.6 Ω
Bl	14.1 T·m
Mms	63.3 g
Pe	150 W
Sensitivity	93.8 dB

Alignment hint

EBP	89 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 35.2 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
Davis 39RCA15 v2024	32.8 +0.8	0.346 =	99.5 -16.5	5.8 +0.8	93.4 -0.4	close		+
Focal 13 VX	30 -2	0.323 -0.02	117 +1	6.8 +1.8	92.5 -1.3	close		+
Dayton Audio SD315-88	26.9 -5.1	0.342 =	122.8 +6.8	5.5 +0.5	94.2 +0.4	close	4 Ω vs 8 Ω: amp load changes	+
JBL LCS1250W	27.4 -4.6	0.331 -0.01	109 -7	5.3 +0.3	93.5 -0.3	close	4 Ω vs 8 Ω: amp load changes	+
MAG Audio SUB 300	30.3 -1.7	0.323 -0.02	110.7 -5.3	7.4 +2.4	95.1 +1.3	close	4 Ω vs 8 Ω: amp load changes	+
JBL GT 122	33 +1	0.35 +0.01	101 -15	5.1 +0.1	96.3 +2.5	close	4 Ω vs 8 Ω: amp load changes	+
Dayton Audio ST305-8	29.6 -2.4	0.348 +0.01	128.1 +12.1	8 +3	92.9 -0.9	close		+
Focal AUDIOM 13KX	28.8 -3.2	0.328 -0.01	127 +11	6 +1	92.3 -1.5	close		+
Beyma 12BR70	35 +3	0.355 +0.01	135 +19	4.8 -0.2	94.7 +0.9	close	Xmax 4.8 mm < 5 mm: lower excursion-limited SPL	+
Beyma 12BR70 vp jp	33.7 +1.7	0.365 +0.02	104 -12	4.4 -0.6	93.1 -0.7	close	Xmax 4.4 mm < 5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 320/75 →

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.