RCF MB12X351

Woofer

Nominal diameter12″ / 305 mm
Resonance55 Hz
Q factor0.26
Sensitivity95.5 dB
Linear excursion± 7 mm
Program Power1400 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 95.5dB
  • Frequency response 45 - 2500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 55Hz
  • Mechanical quality factor QMS 5.90
  • Electrical quality factor QES 0.27
  • Total quality factor QTS 0.26

Large signal parameters

  • Maximum linear excursion xmax 7mm
  • Maximum excursion before damage xlim 20mm
  • Air volume displaced at xmax VD 350cm³
  • Power handling P 700W
  • Program power Pmax 1400W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.4Ω
  • Inductance (1kHz) LE 0.9mH
  • VC Diameter 89mm
  • Winding height HVC 19mm
  • Winding material Copper
  • Former material Glass Fiber

Magnet

  • Force factor Bl 22.5N/A
  • Motor constant Bl/√RE 9.68N/√W
  • Air gap height HAG 10mm

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 500cm²
  • Moving mass MMS 72g
  • Moving mass (without air load) MMD 63.7g

Suspensions

  • Stiffness KMS 8.77N/mm
  • Compliance CMS 114µm/N
  • Equivalent volume to the compliance VAS 46L
  • Mechanical resistance RMS 4.22N·s/m

Dimensions

  • Nominal diameter 12
  • 305mm
  • Overall diameter 320mm
  • Baffle cutout diameter 284mm
  • Overall depth 143mm
  • Volume occupied by the driver 2.2L
  • Net weight 7.6kg
RCF MB12X351 Impedance
RCF MB12X351 SPL
RCF MB12X351 Dimensions

Similar woofers to RCF MB12X351

Ciare PW252 Woofer

Ciare PW252

8 Ω
10 Woofer
fS55 Hz
SD346 cm²
QTS0.26
xmax7 mm
SPL1W95 dB
Bl/√RE6.22
Pmax400 W
SICA 10 Cx 3 PL Coaxial

SICA 10 Cx 3 PL

8 Ω
10 Coaxial
fS59 Hz
SD346 cm²
60 - 20000 Hz
QTS0.29
xmax6 mm
SPL1W95.1 dB
Bl/√RE6.42
Pmax800 W
LaVoce WAN123.01 Woofer

LaVoce WAN123.01

8 Ω
12 Woofer
fS57 Hz
SD531 cm²
40 - 2000 Hz
QTS0.24
xmax6.6 mm
SPL1W96.1 dB
Bl/√RE10.5
Pmax1000 W