Precision Devices PD 123C01

12" · 8 Ω · 400 W · 96.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	46 Hz
Qts	0.314
Qes	0.32
Qms	16.18
Vas	66.8 L
Sd	530.9 cm²
Xmax	5.6 mm
Re	5.88 Ω
Bl	19.4 T·m
Mms	70.8 g
Pe	400 W
Sensitivity	96.4 dB

Alignment hint

EBP	144 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 16.4 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
Eminence LA12850	46 =	0.312 =	66.1 -0.7	5 -0.6	96.4 =	close	Xmax 5 mm < 5.6 mm: lower excursion-limited SPL	+
Precision Devices PD.123C01	46 =	0.32 +0.01	66.82 +0.02	7 +1.4	94.9 -1.5	close		+
Precision Devices PD.12SB30	47 +1	0.31 =	66.82 +0.02	7 +1.4	95.2 -1.2	close		+
Eminence IMPERO 12 A	42.8 -3.2	0.322 +0.01	70.2 +3.4	6.2 +0.6	95.8 -0.6	close		+
DAS Audio 12H	48 +2	0.302 -0.01	57 -9.8	5.9 +0.3	96.1 -0.3	close		+
LaVoce WSN122.50-4	49 +3	0.29 -0.02	64.43 -2.37	5.3 -0.3	97 +0.6	close	4 Ω vs 8 Ω: amp load changes · 250 W vs 400 W: lower power handling · Xmax 5.3 mm < 5.6 mm: lower excursion-limited SPL	+
Ciare NDC 12-3	45.5 -0.5	0.285 -0.03	73.6 +6.8	5.4 -0.2	97 +0.6	close	Xmax 5.4 mm < 5.6 mm: lower excursion-limited SPL	+
JBL 2206H	52 +6	0.316 =	62.3 -4.5	5.9 +0.3	97.9 +1.5	close		+
LaVoce NBASS12-30-16	48 +2	0.34 +0.03	69.83 +3.03	7.3 +1.7	97.5 +1.1	close	16 Ω vs 8 Ω: amp load changes	+
18 Sound 12LW1400	45 -1	0.3 -0.01	55 -11.8	8.25 +2.65	96 -0.4	close		+

Compare the closest 3 against the PD 123C01 →

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.