18 Sound 10W400

10" · 8 Ω · 280 W · 97.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	70 Hz
Qts	0.396
Qes	0.44
Qms	3.99
Vas	31 L
Sd	350 cm²
Xmax	4.3 mm
Re	5.1 Ω
Bl	12.1 T·m
Mms	28.6 g
Pe	280 W
Sensitivity	97.8 dB

Alignment hint

EBP	159 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 14.2 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
RCF L 10/568H	70 =	0.384 -0.01	29.4 -1.6	3.5 -0.8	97.8 =	close	200 W vs 280 W: lower power handling · Xmax 3.5 mm < 4.3 mm: lower excursion-limited SPL	+
Eminence DELTA-10A-2	69.7 -0.3	0.44 +0.04	29.73 -1.27	6.39 +2.09	96.7 -1.1	close		+
LaVoce FBASS10-18	65 -5	0.43 +0.03	32.4 +1.4	4.5 +0.2	96 -1.8	close	150 W vs 280 W: lower power handling	+
Celestion BN10-300X8	64.3 -5.7	0.382 -0.01	28.8 -2.2	4 -0.3	95.8 -2	close	Xmax 4 mm < 4.3 mm: lower excursion-limited SPL	+
Celestion BN10-300X	64.2 -5.8	0.432 +0.04	29.2 -1.8	4 -0.3	96.9 -0.9	close	Xmax 4 mm < 4.3 mm: lower excursion-limited SPL	+
B&C 10 CL 51	60 -10	0.394 =	31 =	3.7 -0.6	95.7 -2.1	close	150 W vs 280 W: lower power handling · Xmax 3.7 mm < 4.3 mm: lower excursion-limited SPL	+
18 Sound 10W650	64 -6	0.41 +0.01	27 -4	5.7 +1.4	96 -1.8	close	16 Ω vs 8 Ω: amp load changes	+
LaVoce WSF102.00	65 -5	0.45 +0.05	34.03 +3.03	5.2 +0.9	97 -0.8	close	175 W vs 280 W: lower power handling	+
Faital PRO 10PR300	65 -5	0.48 +0.08	30.6 -0.4	4.92 +0.62	97 -0.8	close	16 Ω vs 8 Ω: amp load changes	+
RCF L10/568H	70.1 +0.1	0.4 =	28.8 -2.2	3 -1.3	95.6 -2.2	close	100 W vs 280 W: lower power handling · Xmax 3 mm < 4.3 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 10W400 →

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.