RCF LF 12G300

12" · 8 Ω · 450 W · 98.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	54 Hz
Qts	0.285
Qes	0.3
Qms	5.7
Vas	55 L
Sd	529.7 cm²
Xmax	4.6 mm
Re	5.7 Ω
Bl	20 T·m
Mms	62.1 g
Pe	450 W
Sensitivity	98.1 dB

Alignment hint

EBP	180 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 10.7 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
Fane Colossus 12MB	55 +1	0.286 =	56 +1	5.5 +0.9	98 -0.1	close		+
BMS 12C382	52 -2	0.285 =	57 +2	4.5 -0.1	97.6 -0.5	close	Xmax 4.5 mm < 4.6 mm: lower excursion-limited SPL	+
B&C 12FW64	55 +1	0.29 +0.01	64 +9	5 +0.4	98 -0.1	close	250 W vs 450 W: lower power handling	+
B&C 12 NDL 88	51 -3	0.274 -0.01	52 -3	5.7 +1.1	97.8 -0.3	close		+
Master Audio HPLSN12-500	52 -2	0.283 =	65 +10	5 +0.4	97.7 -0.4	close		+
Precision Devices PD 12SB30	50.2 -3.8	0.297 +0.01	59 +4	4.8 +0.2	97.4 -0.7	close		+
B&C 12FL76	50 -4	0.3 +0.02	57 +2	6 +1.4	97.5 -0.6	close		+
B&C 12CL64	52 -2	0.3 +0.02	64 +9	4.5 -0.1	98 -0.1	close	250 W vs 450 W: lower power handling · Xmax 4.5 mm < 4.6 mm: lower excursion-limited SPL	+
18 Sound 12W750	55 +1	0.27 -0.01	58 +3	7 +2.4	97 -1.1	close	4 Ω vs 8 Ω: amp load changes	+
Celestion NTR12-3018D	56.4 +2.4	0.295 +0.01	51.8 -3.2	3.9 -0.7	97.9 -0.2	close	350 W vs 450 W: lower power handling · Xmax 3.9 mm < 4.6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the LF 12G300 →

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.