RCF LF15Y408

15" · 8 Ω · 800 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	36 Hz
Qts	0.26
Qes	0.27
Qms	6.2
Vas	150 L
Sd	900 cm²
Xmax	9 mm
Re	4.8 Ω
Bl	24.6 T·m
Mms	150 g
Pe	800 W
Sensitivity	97 dB

Alignment hint

EBP	133 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 23.5 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 LF15G401	36 =	0.26 =	150 =	9 =	97 =	close		+
PHL Audio 6090	35 -1	0.265 +0.01	145 -5	7.9 -1.1	97 =	close	Xmax 7.9 mm < 9 mm: lower excursion-limited SPL	+
PHL Audio 6201MNd	36 =	0.266 +0.01	138.4 -11.6	7.9 -1.1	97.3 +0.3	close	Xmax 7.9 mm < 9 mm: lower excursion-limited SPL	+
BMS 15N840V2-8	35.6 -0.4	0.268 +0.01	130 -20	8.7 -0.3	97.2 +0.2	close	Xmax 8.7 mm < 9 mm: lower excursion-limited SPL	+
RCF L15P400	36 =	0.25 -0.01	160 +10	8 -1	96.3 -0.7	close	400 W vs 800 W: lower power handling · Xmax 8 mm < 9 mm: lower excursion-limited SPL	+
18 Sound 15NLW9401	39 +3	0.26 =	134 -16	10 +1	97.5 +0.5	close		+
RCF LF 15G401	36 =	0.259 =	150 =	6.9 -2.1	98.3 +1.3	close	Xmax 6.9 mm < 9 mm: lower excursion-limited SPL	+
Fane COLOSSUS 15XS	36.3 +0.3	0.307 +0.05	149.7 -0.3	9.1 +0.1	97.3 +0.3	close		+
Fane COLOSSUS PRIME 15XS	36.3 +0.3	0.307 +0.05	149.7 -0.3	9.1 +0.1	97.3 +0.3	close		+
BMS 15N830vv2	37 +1	0.27 +0.01	159 +9	8 -1	96 -1	close	Xmax 8 mm < 9 mm: lower excursion-limited SPL	+

Compare the closest 3 against the LF15Y408 →

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.