RCF L 12/584

12" · 8 Ω · 200 W · 101.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	49 Hz
Qts	0.186
Qes	0.2
Qms	2.7
Vas	100 L
Sd	456 cm²
Xmax	3 mm
Re	5.1 Ω
Bl	15.5 T·m
Mms	30.8 g
Pe	200 W
Sensitivity	101.6 dB

Alignment hint

EBP	245 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 7.4 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
18 Sound 12MB700	49 =	0.19 =	101 +1	4.5 +1.5	101.5 -0.1	close		+
18 Sound 12MB777	49 =	0.19 =	101 +1	4.5 +1.5	101.5 -0.1	close		+
B&C 12 PE 32	51 +2	0.185 =	101 +1	2.8 -0.2	101.9 +0.3	close	Xmax 2.8 mm < 3 mm: lower excursion-limited SPL	+
B&C 12PE32	51 +2	0.18 -0.01	101 +1	2.8 -0.2	101 -0.6	close	Xmax 2.8 mm < 3 mm: lower excursion-limited SPL	+
18 Sound 12MB600	46 -3	0.19 =	86 -14	4.5 +1.5	101 -0.6	close	4 Ω vs 8 Ω: amp load changes	+
JBL 2202H	50 +1	0.171 -0.01	87.8 -12.2	2.6 -0.4	101.5 -0.1	close	150 W vs 200 W: lower power handling · Xmax 2.6 mm < 3 mm: lower excursion-limited SPL	+
18 Sound 12ND710	52 +3	0.2 +0.01	92 -8	5 +2	101 -0.6	close		+
PHL Audio 4050	49 =	0.197 +0.01	84 -16	4.1 +1.1	100.1 -1.5	close		+
JBL K120	50 +1	0.2 +0.01	121.8 +21.8	2.7 -0.3	101.6 =	close	100 W vs 200 W: lower power handling · Xmax 2.7 mm < 3 mm: lower excursion-limited SPL	+
18 Sound 12ND610	50 +1	0.21 +0.02	85 -15	3.5 +0.5	101 -0.6	close	16 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the L 12/584 →

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.