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Focal SUB25KXS

10" · 4 Ω · 700 W · 85 dB · datasheet ↗

Thiele-Small parameters

Nominal size10"
Impedance4 Ω
Fs35 Hz
Qts0.812
Qes0.97
Qms5
Vas18 L
Sd327 cm²
Xmax7 mm
Re3.2 Ω
Bl11.2 T·m
Mms172.2 g
Pe700 W
Sensitivity85 dB

Alignment hint

EBP36 · 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Audiobahn AW1051T42.7 +7.70.82 +0.0119.822 +1.8213 +683.9 -1.1usable300 W vs 700 W: lower power handling+
Kenwood KFC-XW100F38.6 +3.60.72 -0.0921.05 +3.057.5 +0.583.4 -1.6usable250 W vs 700 W: lower power handling+
Kenwood KFC-WPS1000F38.6 +3.60.722 -0.0921.05 +3.058 +183.4 -1.6usable250 W vs 700 W: lower power handling+
Focal P25 FSE30 -50.798 -0.0125 +76.5 -0.584.5 -0.5usable280 W vs 700 W: lower power handling · Xmax 6.5 mm < 7 mm: lower excursion-limited SPL+
Rockford Fosgate T1D41036 +10.647 -0.1715.7 -2.37.3 +0.382.9 -2.1usable8 Ω vs 4 Ω: amp load changes+
Sony XS-GTR101L44 +90.72 -0.0921 +36.9 -0.185.4 +0.4usable370 W vs 700 W: lower power handling · Xmax 6.9 mm < 7 mm: lower excursion-limited SPL+
HiVi SP1034 -10.573 -0.2417.1 -0.96.7 -0.385.8 +0.8usable500 W vs 700 W: lower power handling · Xmax 6.7 mm < 7 mm: lower excursion-limited SPL+
Pioneer TS-SW2502S442 +70.97 +0.1618.5 +0.56.5 -0.583 -2usable300 W vs 700 W: lower power handling · Xmax 6.5 mm < 7 mm: lower excursion-limited SPL+
Focal P25FS30 -50.784 -0.0325 +76.4 -0.683.5 -1.5usable8 Ω vs 4 Ω: amp load changes · 280 W vs 700 W: lower power handling · Xmax 6.4 mm < 7 mm: lower excursion-limited SPL+
JL Audio 10TW3-D432.3 -2.70.62 -0.1919.8 +1.87 =81.5 -3.5usable16 Ω vs 4 Ω: amp load changes · 400 W vs 700 W: lower power handling+

Compare the closest 3 against the SUB25KXS →

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.