RCF L 15/554K

15" · 8 Ω · 600 W · 98.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	35 Hz
Qts	0.243
Qes	0.25
Qms	8.6
Vas	227 L
Sd	830 cm²
Xmax	8 mm
Re	6.6 Ω
Bl	22.6 T·m
Mms	88 g
Pe	600 W
Sensitivity	98.7 dB

Alignment hint

EBP	140 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 30.4 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
Beyma 15P80/ND	35 =	0.214 -0.03	217 -10	7.9 -0.1	100.1 +1.4	close	Xmax 7.9 mm < 8 mm: lower excursion-limited SPL	+
DAS Audio 15G	35 =	0.259 +0.02	225 -2	6 -2	98.8 +0.1	close	Xmax 6 mm < 8 mm: lower excursion-limited SPL	+
Faital PRO 15FH510	35 =	0.26 +0.02	191.8 -35.2	9.25 +1.25	98 -0.7	close		+
18 Sound 15W930	33 -2	0.22 -0.02	240 +13	7.5 -0.5	98 -0.7	close	Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+
18 Sound 15ND930	36 +1	0.22 -0.02	206 -21	7.5 -0.5	98 -0.7	close	Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+
18 Sound 15ND930	35 =	0.24 =	182 -45	7.5 -0.5	97 -1.7	close	4 Ω vs 8 Ω: amp load changes · Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+
B&C 15 TX	40 +5	0.245 =	215.6 -11.4	9 +1	101.1 +2.4	close		+
PHL Audio 5010	34 -1	0.25 +0.01	200 -27	6.4 -1.6	98.2 -0.5	close	Xmax 6.4 mm < 8 mm: lower excursion-limited SPL	+
Celestion NTR15-3018E v2015	34.6 -0.4	0.245 =	225.7 -1.3	5 -3	99.1 +0.4	close	450 W vs 600 W: lower power handling · Xmax 5 mm < 8 mm: lower excursion-limited SPL	+
18 Sound 15LW2400	34 -1	0.23 -0.01	191 -36	9.5 +1.5	97 -1.7	close	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the L 15/554K →

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.