Pioneer TS-SW2502S4

10" · 4 Ω · 300 W · 83 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	42 Hz
Qts	0.97
Qes	1.05
Qms	12.04
Vas	18.5 L
Sd	400 cm²
Xmax	6.5 mm
Re	3 Ω
Bl	12 T·m
Mms	171 g
Pe	300 W
Sensitivity	83 dB

Alignment hint

EBP	40 · sealed
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Audiobahn AW1051T	42.7 +0.7	0.82 -0.15	19.822 +1.32	13 +6.5	83.9 +0.9	usable		+
Focal SUB25KXS	35 -7	0.812 -0.16	18 -0.5	7 +0.5	85 +2	usable		+
Pioneer TS-W261D4	46 +4	1.044 +0.07	17.7 -0.8	8.4 +1.9	89.9 +6.9	usable		+
Kenwood KFC-XW100F	38.6 -3.4	0.72 -0.25	21.05 +2.55	7.5 +1	83.4 +0.4	usable		+
Xtant X2 1044	37.2 -4.8	0.961 -0.01	15.9 -2.6	5.7 -0.8	88.5 +5.5	usable	2 Ω vs 4 Ω: amp load changes · Xmax 5.7 mm < 6.5 mm: lower excursion-limited SPL	+
Kenwood KFC-WPS1000F	38.6 -3.4	0.722 -0.25	21.05 +2.55	8 +1.5	83.4 +0.4	usable		+
Sony XS-GTR101L	44 +2	0.72 -0.25	21 +2.5	6.9 +0.4	85.4 +2.4	usable		+
Pioneer TS-ME100WS	48 +6	0.82 -0.15	26.9 +8.4	9.6 +3.1	84 +1	usable		+
Hertz Audio DS 25.3	36 -6	0.92 -0.05	34 +15.5	9 +2.5	83.3 +0.3	usable	150 W vs 300 W: lower power handling	+
Focal 27 KX	48 +6	0.908 -0.06	14.9 -3.6	4.5 -2	86.7 +3.7	usable	8 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 6.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the TS-SW2502S4 →

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.