Precision Devices 900 Series PD915

15" · 8 Ω · 600 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	42.9 Hz
Qts	0.28
Qes	0.29
Qms	7.31
Vas	129.52 L
Sd	881.41 cm²
Xmax	6 mm
Re	5.77 Ω
Bl	24.94 T·m
Mms	115.95 g
Pe	600 W
Sensitivity	97 dB

Alignment hint

EBP	148 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 24.1 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
18 Sound 15LW1402	42 -0.9	0.28 =	126 -3.52	7 +1	98.4 +1.4	close		+
PD PD 915	42.9 =	0.279 =	129.5 -0.02	5.5 -0.5	98.9 +1.9	close	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
Precision Devices PD 915	42.9 =	0.279 =	129.5 -0.02	5.5 -0.5	98.9 +1.9	close	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
BMS 15S435	38 -4.9	0.28 =	129 -0.52	8 +2	97 =	close		+
18 Sound 15LW1401	42 -0.9	0.27 -0.01	131 +1.48	9 +3	98 +1	close		+
18 Sound 15LW1410	42 -0.9	0.27 -0.01	131 +1.48	8.5 +2.5	98.5 +1.5	close		+
Fane COLOSSUS 15B600	42 -0.9	0.278 =	139 +9.48	5.7 -0.3	98.7 +1.7	close	Xmax 5.7 mm < 6 mm: lower excursion-limited SPL	+
B&C 15 TBX 40	38 -4.9	0.277 =	131 +1.48	7.8 +1.8	97.8 +0.8	close		+
Radian 2215 B-8	41.8 -1.1	0.321 +0.04	135.5 +5.98	6 =	97 =	close		+
B&C 14 CXN 6	45 +2.1	0.28 =	131 +1.48	5.6 -0.4	100 +3	close	400 W vs 600 W: lower power handling · Xmax 5.6 mm < 6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 900 Series PD915 →

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.