RCF CX12N351

12" · 8 Ω · 90 W · 98.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	58 Hz
Qts	0.2
Qes	0.21
Qms	5.4
Vas	47 L
Sd	530 cm²
Xmax	6 mm
Re	5.8 Ω
Bl	25 T·m
Mms	62 g
Pe	90 W
Sensitivity	98.2 dB

Alignment hint

EBP	276 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 4.1 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
B&C 12FW76	54 -4	0.18 -0.02	48.5 +1.5	7 +1	99 +0.8	close	4 Ω vs 8 Ω: amp load changes	+
RCF MB 12N405	52 -6	0.203 =	53 +6	5.7 -0.3	99.5 +1.3	close	Xmax 5.7 mm < 6 mm: lower excursion-limited SPL	+
Precision Devices PD121	59 +1	0.201 =	54 +7	5 -1	100 +1.8	close	16 Ω vs 8 Ω: amp load changes · Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Sica 12 F 4 CP	46 -12	0.2 =	52 +5	6 =	97.8 -0.4	close		+
B&C 12FW76	54 -4	0.18 -0.02	45 -2	7 +1	100 +1.8	close		+
RCF LF 12N401	48 -10	0.205 =	50 +3	5.2 -0.8	97.8 -0.4	close	Xmax 5.2 mm < 6 mm: lower excursion-limited SPL	+
RCF CX 12N351 V2017	58 =	0.202 =	47 =	3.6 -2.4	99.8 +1.6	close	Xmax 3.6 mm < 6 mm: lower excursion-limited SPL	+
RCF LF 12X401	45 -13	0.211 +0.01	50 +3	6.1 +0.1	97 -1.2	usable		+
Precision Devices PD123 ER	60.5 +2.5	0.247 +0.05	51 +4	6.5 +0.5	97 -1.2	usable	16 Ω vs 8 Ω: amp load changes	+
RCF MB 12N407	48 -10	0.194 -0.01	50 +3	4.7 -1.3	98.4 +0.2	usable	Xmax 4.7 mm < 6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the CX12N351 →

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.