Precision Devices PD 24603BR

25" · 8 Ω · 1600 W · 100.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	25"
Impedance	8 Ω
Fs	34 Hz
Qts	0.31
Qes	0.32
Qms	9.92
Vas	355 L
Sd	2239 cm²
Xmax	7.1 mm
Re	5.3 Ω
Bl	39.2 T·m
Mms	433.8 g
Pe	1600 W
Sensitivity	100.2 dB

Alignment hint

EBP	106 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 84.5 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
PD PD 24603BR	34 =	0.31 =	355 =	7.1 =	100.2 =	close		+
Celestion TSQ2460	27 -7	0.301 -0.01	344.5 -10.5	9.4 +2.3	99.4 -0.8	close	4 Ω vs 8 Ω: amp load changes	+
PD PDN 2450	32 -2	0.362 +0.05	459.7 +104.7	6.9 -0.2	99.5 -0.7	usable	1000 W vs 1600 W: lower power handling · Xmax 6.9 mm < 7.1 mm: lower excursion-limited SPL	+
Precision Devices PDN 2450	32 -2	0.362 +0.05	459.7 +104.7	6.9 -0.2	99.5 -0.7	usable	1000 W vs 1600 W: lower power handling · Xmax 6.9 mm < 7.1 mm: lower excursion-limited SPL	+
PD PD 2450	30.5 -3.5	0.333 +0.02	565.4 +210.4	7.6 +0.5	100.1 -0.1	usable	1000 W vs 1600 W: lower power handling	+
Precision Devices PD 2450	30.5 -3.5	0.333 +0.02	565.4 +210.4	7.6 +0.5	100.1 -0.1	usable	1000 W vs 1600 W: lower power handling	+
Stereo Integrity SHS-24	27 -7	0.4 +0.09	193 -162	7.9 +0.8	97.5 -2.7	risky	4 Ω vs 8 Ω: amp load changes	+
Stereo Integrity HS-24 MKII	18.6 -15.4	0.39 +0.08	553.7 +198.7	15.9 +8.8	95.7 -4.5	risky	4 Ω vs 8 Ω: amp load changes	+
Stereo Integrity IB-24 D2 DVC	20 -14	0.545 +0.24	595 +240	15.8 +8.7	94.5 -5.7	risky	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the PD 24603BR →

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.