RCF L 10/561K

10" · 8 Ω · 250 W · 97.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	67 Hz
Qts	0.379
Qes	0.41
Qms	5
Vas	35.5 L
Sd	350 cm²
Xmax	2.5 mm
Re	6.3 Ω
Bl	13.3 T·m
Mms	27.3 g
Pe	250 W
Sensitivity	97.2 dB

Alignment hint

EBP	163 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 14.3 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
Peerless FSL-1020R02-08	67.7 +0.7	0.376 =	31.7 -3.8	2.4 -0.1	97.1 -0.1	close	Xmax 2.4 mm < 2.5 mm: lower excursion-limited SPL	+
Monacor SP-10/100PA	65 -2	0.381 =	32 -3.5	2.5 =	95.8 -1.4	close	100 W vs 250 W: lower power handling	+
the box 10LB065-16N	65 -2	0.379 =	36.8 +1.3	2.5 =	94.4 -2.8	close	16 Ω vs 8 Ω: amp load changes	+
Beyma 10XC25	63 -4	0.376 =	41 +5.5	4.5 +2	97.2 =	close		+
B&C 10 CL 51 v2024	58 -9	0.375 =	36 +0.5	3.9 +1.4	96.1 -1.1	close	150 W vs 250 W: lower power handling	+
RCF L 10/568H	70 +3	0.384 +0.01	29.4 -6.1	3.5 +1	97.8 +0.6	close		+
Eminence DELTA 10B	65 -2	0.33 -0.05	36 +0.5	3.5 +1	98 +0.8	close	16 Ω vs 8 Ω: amp load changes	+
LaVoce WSF101.82	64 -3	0.4 +0.02	41.6 +6.1	3.6 +1.1	97.4 +0.2	close	150 W vs 250 W: lower power handling	+
LaVoce FBASS10-18-8	62 -5	0.416 +0.04	35 -0.5	3.6 +1.1	96.1 -1.1	close	150 W vs 250 W: lower power handling	+
18 Sound 10W400	70 +3	0.396 +0.02	31 -4.5	4.3 +1.8	97.8 +0.6	close		+

Compare the closest 3 against the L 10/561K →

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.