STX SW.10.2.500.8.F.A.FC.X

10" · 8 Ω · 250 W · 87.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	25 Hz
Qts	0.352
Qes	0.39
Qms	3.61
Vas	59 L
Sd	350 cm²
Xmax	6.8 mm
Re	5.2 Ω
Bl	15.7 T·m
Mms	118 g
Pe	250 W
Sensitivity	87.6 dB

Alignment hint

EBP	64 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 19.4 L

EBP 50-100: works in either a sealed or ported 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
STX W.27.500.8.FCX	25 =	0.352 =	59 =	9.6 +2.8	87.6 =	close		+
Kartesian SUB250_VHE v2022	26 +1	0.314 -0.04	57.3 -1.7	9.3 +2.5	89.6 +2	close		+
SEAS L26ROY-XM001-04 v2018	25 =	0.417 +0.07	56 -3	9.7 +2.9	88.7 +1.1	close	4 Ω vs 8 Ω: amp load changes	+
Volt B2549	24 -1	0.321 -0.03	74 +15	8.3 +1.5	87.6 =	close		+
Volt B2550	24 -1	0.321 -0.03	74 +15	8.3 +1.5	87.6 =	close		+
Image Dynamics IDQ10DQV3	25.5 +0.5	0.384 +0.03	71 +12	9 +2.2	88.9 +1.3	close		+
JL Audio 10W0-8	25.6 +0.6	0.394 +0.04	69.4039 +10.4	8.636 +1.84	86.3 -1.3	close	125 W vs 250 W: lower power handling	+
Reckhorn D-250	22 -3	0.34 -0.01	71.4 +12.4	8.2 +1.4	88.5 +0.9	close	4 Ω vs 8 Ω: amp load changes · 150 W vs 250 W: lower power handling	+
Cobalt CS 10 DVC serie	30 +5	0.387 +0.04	60 +1	6 -0.8	88.3 +0.7	usable	Xmax 6 mm < 6.8 mm: lower excursion-limited SPL	+
TC Sounds EPIC 10 DVC	24.3 -0.7	0.316 -0.04	49.5 -9.5	11.9 +5.1	88.6 +1	usable	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the SW.10.2.500.8.F.A.FC.X →

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.