← all drivers

RCF MB 12N405

12" · 8 Ω · 1000 W · 99.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance8 Ω
Fs52 Hz
Qts0.203
Qes0.21
Qms6
Vas53 L
Sd530 cm²
Xmax5.7 mm
Re5 Ω
Bl23.3 T·m
Mms69.6 g
Pe1000 W
Sensitivity99.5 dB

Alignment hint

EBP248 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 4.8 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Sica 12 F 4 CP46 -60.2 =52 -16 +0.397.8 -1.7close700 W vs 1000 W: lower power handling+
Precision Devices PD12159 +70.201 =54 +15 -0.7100 +0.5close16 Ω vs 8 Ω: amp load changes · 300 W vs 1000 W: lower power handling · Xmax 5 mm < 5.7 mm: lower excursion-limited SPL+
B&C 12CL7648 -40.21 +0.0159 +66 +0.398.5 -1close350 W vs 1000 W: lower power handling+
RCF LF 12N40148 -40.205 =50 -35.2 -0.597.8 -1.7closeXmax 5.2 mm < 5.7 mm: lower excursion-limited SPL+
RCF CX12N35158 +60.2 =47 -66 +0.398.2 -1.3close90 W vs 1000 W: lower power handling+
Beyma 12"P80/Fe V248 -40.21 +0.0161 +87.5 +1.899 -0.5close700 W vs 1000 W: lower power handling+
18 Sound 12ND94049 -30.2 =64.8 +11.87.6 +1.9100 +0.5close600 W vs 1000 W: lower power handling+
B&C 12FW7654 +20.18 -0.0248.5 -4.57 +1.399 -0.5close4 Ω vs 8 Ω: amp load changes · 500 W vs 1000 W: lower power handling+
Beyma 12P80FE V250 -20.201 =66.8 +13.85.2 -0.599.9 +0.4close700 W vs 1000 W: lower power handling · Xmax 5.2 mm < 5.7 mm: lower excursion-limited SPL+
RCF MB 12N35155 +30.201 =61 +84.7 -1100.4 +0.9close650 W vs 1000 W: lower power handling · Xmax 4.7 mm < 5.7 mm: lower excursion-limited SPL+

Compare the closest 3 against the MB 12N405 →

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.