Rockford Fosgate P1S4-10

10" · 4 Ω · 250 W · 84.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	30 Hz
Qts	0.52
Qes	0.629
Qms	3
Vas	40 L
Sd	370 cm²
Xmax	9 mm
Re	3.6 Ω
Bl	12.14 T·m
Mms	136.6 g
Pe	250 W
Sensitivity	84.2 dB

Alignment hint

EBP	48 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 47.1 L

EBP < 50: favours a sealed (closed) 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
Rockford Fosgate P1S2-10	30 =	0.52 =	39.6 -0.4	9 =	84 -0.2	close	2 Ω vs 4 Ω: amp load changes	+
JL Audio 10W7AE-3	30.6 +0.6	0.537 +0.02	36.1 -3.9	23 +14	84.4 +0.2	close	3 Ω vs 4 Ω: amp load changes	+
Polk Audio DX10-4	28.7 -1.3	0.49 -0.03	33.4 -6.6	8.7 -0.3	83.6 -0.6	close	Xmax 8.7 mm < 9 mm: lower excursion-limited SPL	+
Boston Acoustics G1104	29 -1	0.534 +0.01	39 -1	7.4 -1.6	87.1 +2.9	close	8 Ω vs 4 Ω: amp load changes · Xmax 7.4 mm < 9 mm: lower excursion-limited SPL	+
Boston Acoustics COMPETITOR 1000S4	34 +4	0.53 +0.01	35 -5	8.5 -0.5	85.7 +1.5	close	Xmax 8.5 mm < 9 mm: lower excursion-limited SPL	+
JL Audio 10W6V2-D4	28.5 -1.5	0.469 -0.05	33.4 -6.6	11.9 +2.9	84.9 +0.7	close	8 Ω vs 4 Ω: amp load changes	+
JL Audio 10W3V3-4	31.5 +1.5	0.485 -0.04	32.23 -7.77	14 +5	84.87 +0.67	close		+
Hertz Audio ES 250	26.9 -3.1	0.54 +0.02	54 +14	9 =	84.4 +0.2	close		+
JL Audio 10W7AE-3	30.6 +0.6	0.537 +0.02	36.1 -3.9	12 +3	89.1 +4.9	close		+
JL Audio 10W1V3-4	26.15 -3.85	0.446 -0.07	43.41 +3.41	11 +2	84.2 =	usable		+

Compare the closest 3 against the P1S4-10 →

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.