PD PD 912

12" · 8 Ω · 400 W · 96.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	41.3 Hz
Qts	0.253
Qes	0.27
Qms	3.95
Vas	97.9 L
Sd	530.9 cm²
Xmax	5 mm
Re	6.96 Ω
Bl	20 T·m
Mms	60 g
Pe	400 W
Sensitivity	96.7 dB

Alignment hint

EBP	153 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 14.4 L

EBP > 100: favours a ported (bass-reflex) 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
Precision Devices PD 912	41.3 =	0.253 =	97.9 =	5 =	96.7 =	close		+
Precision Devices PD912	41.29 -0.01	0.25 =	97.87 -0.03	5 =	97 +0.3	close	300 W vs 400 W: lower power handling	+
Beyma 12"WR400	42 +0.7	0.27 +0.02	91 -6.9	6.3 +1.3	97 +0.3	close		+
Beyma 12K200 v2	43 +1.7	0.276 +0.02	96.2 -1.7	4.5 -0.5	96.6 -0.1	close	250 W vs 400 W: lower power handling · Xmax 4.5 mm < 5 mm: lower excursion-limited SPL	+
Beyma 12CXA400Nd v2018	45 +3.7	0.251 =	88.5 -9.4	5.5 +0.5	97.7 +1	close		+
SB Audience 12MW300	43 +1.7	0.264 +0.01	104 +6.1	5.6 +0.6	98.7 +2	close	300 W vs 400 W: lower power handling	+
Beyma SM112	45 +3.7	0.262 +0.01	101 +3.1	4.8 -0.2	98.3 +1.6	close	250 W vs 400 W: lower power handling · Xmax 4.8 mm < 5 mm: lower excursion-limited SPL	+
Beyma 12LW30/N v2015	42 +0.7	0.269 +0.02	84 -13.9	6.1 +1.1	96.3 -0.4	close		+
Beyma 12WR400	42 +0.7	0.285 +0.03	91.1 -6.8	6.3 +1.3	96.9 +0.2	close		+
Faital PRO 12FH500	45 +3.7	0.25 =	87.3 -10.6	7.5 +2.5	97 +0.3	close		+

Compare the closest 3 against the PD 912 →

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.