- Net volume
- 40L
- Tuning
- 65Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
12-inch LF driver · 12FW series · 76 mm voice coil · 500 W
B&C 12FW76 4Ω
55–3000 Hz
No price for delivery to the UK
- Fs
- 54Hz
- Xmax
- 7mm
- SPL
- 99dB
- Pe
- 500W
- BL
- 20.4T·m
- Vd
- 365cm³
- Qts
- 0.18
- Vas
- 49L
Published graphs
B&C 12FW76 is a 12-inch 4 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 54 Hz, Qts 0.18, Vas 48.5 L, Xmax 7 mm, sensitivity 98.6 dB, plus 365 cm³ Vd and 318 EBP. bits tracks UK, EU and US shop prices, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £151.09.
The published T/S values agree with each other
Thiele/Small
- Fs
- 54Hz
- Qts
- 0.18
- Qes
- 0.17
- Qms
- 4.2
- Vas
- 48.5L
- Re
- 3.1Ω
- Le
- 1mH
Motor and cone
- BL
- 20.4T·m
- Sd
- 522cm²
- Mms
- 70g
- Xmax
- 7mm
- Vd †
- 365cm³
- Voice coil
- 76mm
- Flux density
- 1.35T
Power and response
- Sensitivity †
- 98.6dB
- Manufacturer sensitivity
- 99dB
- Power
- 500W
- Nominal power
- 500W
- Impedance
- 4Ω
- Min. impedance
- 4.2Ω
- Range
- 55–3000Hz
- EBP †
- 318 · Leans vented
Size and mounting
- Diameter
- 315mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Depth
- 147mm
- Weight
- 8.6kg
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 20.4T·m
- Fs
- 54Hz
- Le
- 1mH
- Re
- 3.1Ω
- Sd
- 522cm²
- Mms
- 70g
- Qes
- 0.17
- Qms
- 4.2
- Qts
- 0.18
- SPL
- 98.6dB
- Vas
- 48.5L
- Xmax
- 7mm
- Power
- 500W
- Impedance
- 4Ω
- Flux density
- 1.35T
- Sensitivity
- 99dB
- Low limit
- 55Hz
- Nominal power
- 500W
- Calculated sensitivity †
- 98.6dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 99dB
- Min. impedance
- 4.2Ω
- Voice coil
- 76mm
- Weight
- 8.6kg
- Diameter
- 315mm
- Depth
- 147mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Bl
- 20.4 Tm
- Fs
- 54 Hz
- Le
- 1 mH
- Re
- 3.1 Ω
- Sd
- 522 cm² (80.91 in²)
- Ebp
- 318 Hz
- Mms
- 69.5 g
- Qes
- 0.17
- Qms
- 4.2
- Qts
- 0.18
- Vas
- 48.5 dm³ (1.71 ft³)
- Η0
- 4.15 %
- Cone
- RCK12FW768
- Xmax
- 7 mm
- Xvar
- 8.5 mm
- Depth
- 147 mm (5.79 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 8.55 kg (18.85 lb)
- Pole design
- T-Pole
- Sensitivity
- 99 dB
- Flux density
- 1.35 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 19 mm (0.75 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 55 Hz - 3000 Hz
- Magnet material
- Ferrite
- Shipping weight
- 9.45 kg (20.83 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 315 mm (12.4 in)
- Winding material
- Copper
- Minimum impedance
- 4.2 Ω
- Nominal impedance
- 4 Ω
- Magnetic gap depth
- 11 mm (0.43 in)
- Recommended tuning
- 65 Hz
- Voice coil diameter
- 76 mm (3 in)
- Bolt circle diameter
- 298 mm (11.7 in)
- Recommended enclosure
- 40 dm³ (1.41 ft³)
- Woofer cone treatment
- WP Waterproof Front Side
- Baffle cutout diameter
- 283 mm (11.1 in)
- Nominal power handling
- 500 W
- Continuous power handling
- 1000 W
- Flange and gasket thickness
- 12 mm (0.47 in)
- Air volume occupied by driver
- 3 dm³ (0.1 ft³)
B&C’s suggested box
From B&C’s 12FW76 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 12FW76. Clear differences are green when better and red when worse.
This driver12FW76
Best price
£151.09
Fs
54 Hz
Qts
0.18
Vas
48.5 L
BL
20.4 T·m
Xmax
7 mm
Sensitivity
98.6 dB
Power
500 W
B&C12PE32
£113.88 · 25% less, betterFs51 Hz −6%
Qts0.18 –
Vas101 L +108%, worse
BL19.1 T·m −6%
Xmax2.8 mm −60%, worse
Sensitivity100.5 dB +1.9
B&C12CL76
£126.59 · 16% less, betterFs48 Hz −11%, better
Qts0.21 +17%, worse
Vas59 L +22%, worse
BL22.4 T·m +10%
Xmax6 mm −14%, worse
Sensitivity96.8 dB −1.8
B&C12MH32
£139.54 · 8% less, betterFs53 Hz –
Qts0.19 +6%
Vas63 L +30%, worse
BL22.3 T·m +9%
Xmax5 mm −29%, worse
Sensitivity98.7 dB –
PRV Audio12MR2000
£143.05 · 5% less, betterFs57 Hz +6%
Qts0.33 +83%, worse
Vas52.5 L +8%
BL21.3 T·m +4%
Xmax6.6 mm −5%
Sensitivity96.6 dB −2, worse
B&C12NDL76
£167.22 · 11% more, worseFs50 Hz −7%
Qts0.19 +6%
Vas70 L +44%, worse
BL16.5 T·m −19%, worse
Xmax6 mm −14%, worse
Sensitivity98.4 dB –
EminenceOMEGA PRO-12-2KW-8
£173.24 · 15% more, worseFs48 Hz −11%, better
Qts0.39 +117%, worse
Vas49.5 L –
BL20.4 T·m –
Xmax7.1 mm –
Sensitivity93.4 dB −5.2, worse
Beyma12MCB700
£174.16 · 15% more, worseFs51 Hz −6%
Qts0.27 +50%, worse
Vas59.5 L +23%, worse
BL20.4 T·m –
Xmax7 mm –
Sensitivity96.4 dB −2.2, worse
Beyma12P80FE
£175.00 · 16% more, worseFs48 Hz −11%, better
Qts0.21 +17%, worse
Vas61 L +26%, worse
BL23 T·m +13%, better
Xmax7.5 mm +7%
Sensitivity96.9 dB −1.7
RCFMB12X351
£187.93 · 24% more, worseFs55 Hz –
Qts0.26 +44%, worse
Vas46 L −5%
BL22.5 T·m +10%, better
Xmax7 mm –
Sensitivity96.6 dB −2, worse
Eighteen Sound12LW800
£189.95 · 26% more, worseFs52 Hz −4%
Qts0.29 +61%, worse
Vas48 L –
BL21.3 T·m +4%
Xmax6.5 mm −7%
Sensitivity95.6 dB −3, worse
B&C12NW76
£202.02 · 34% more, worseFs43 Hz −20%, better
Qts0.15 −17%, better
Vas64.5 L +33%, worse
BL22 T·m +8%
Xmax8 mm +14%, better
Sensitivity97.4 dB −1.2
Eighteen Sound12MB1000
£204.35 · 35% more, worseFs54 Hz –
Qts0.18 –
Vas60 L +24%, worse
BL23.5 T·m +15%, better
Xmax2.5 mm −64%, worse
Sensitivity98.8 dB –
Beyma12MC700ND
£217.96 · 44% more, worseFs51 Hz −6%
Qts0.24 +33%, worse
Vas58 L +20%, worse
BL21.6 T·m +6%
Xmax7 mm –
Sensitivity96.7 dB −1.9
RCFMB12N351
£225.00 · 49% more, worseFs55 Hz –
Qts0.20 +11%, worse
Vas61 L +26%, worse
BL22.5 T·m +10%, better
Xmax6 mm −14%, worse
Sensitivity98.9 dB –
Eighteen Sound12ND930
£248.59 · 65% more, worseFs50 Hz −7%
Qts0.21 +17%, worse
Vas70 L +44%, worse
BL21.2 T·m +4%
Xmax6.5 mm −7%
Sensitivity98 dB −0.6
Eighteen Sound12NMB1000
£252.00 · 67% more, worseFs54 Hz –
Qts0.19 +6%
Vas58 L +20%, worse
BL24.4 T·m +20%, better
Xmax3.5 mm −50%, worse
Sensitivity98.8 dB –
Beyma12P80ND
£376.94 · 149% more, worseFs47 Hz −13%, better
Qts0.19 +6%
Vas65 L +34%, worse
BL23.7 T·m +16%, better
Xmax7.5 mm +7%
Sensitivity97.3 dB −1.3
B&C12CXN76
£382.96 · 153% more, worseFs42 Hz −22%, better
Qts0.19 +6%
Vas120 L +147%, worse
BL17.6 T·m −14%, worse
Xmax6 mm −14%, worse
Sensitivity98.5 dB –
B&C12HCX76
£385.07 · 155% more, worseFs42 Hz −22%, better
Qts0.19 +6%
Vas120 L +147%, worse
BL17.6 T·m −14%, worse
Xmax6 mm −14%, worse
Sensitivity98.5 dB –
RCFMB12N405
No current priceFs52 Hz −4%
Qts0.20 +11%, worse
Vas53 L +9%
BL23.5 T·m +15%, better
Xmax7 mm –
Sensitivity97.5 dB −1.1
Oberton12NB400
No current priceFs44 Hz −19%, better
Qts0.18 –
Vas70.5 L +45%, worse
BL20.3 T·m –
Xmax5.3 mm −25%, worse
Sensitivity97.1 dB −1.5
Eighteen Sound12ND940
No current priceFs49 Hz −9%
Qts0.20 +11%, worse
Vas64.8 L +34%, worse
BL22.2 T·m +9%
Xmax7.6 mm +9%
Sensitivity97.8 dB −0.8
Oberton12MB35
No current priceFs51 Hz −5%
Qts0.27 +48%, worse
Vas50.1 L +3%
BL20.5 T·m –
Xmax6.8 mm −4%
Sensitivity96 dB −2.6, worse
RCFCX12N351
No current priceFs58 Hz +7%
Qts0.20 +11%, worse
Vas47 L −3%
BL25 T·m +23%, better
Xmax6 mm −14%, worse
Sensitivity98.4 dB –
CelestionTSQ1230
No current priceFs55 Hz –
Qts0.30 +68%, worse
Vas45.2 L −7%
BL20.5 T·m –
Xmax6.8 mm −4%
Sensitivity95.8 dB −2.8, worse
Oberton12NB450
No current priceFs46 Hz −14%, better
Qts0.20 +13%, worse
Vas72.6 L +50%, worse
BL20.3 T·m –
Xmax7.8 mm +11%, better
Sensitivity97.5 dB −1.1
Sica12 K 4 PL
No current priceFs49 Hz −10%, better
Qts0.25 +39%, worse
Vas47.4 L –
BL22.9 T·m +12%, better
Xmax7 mm –
Sensitivity95 dB −3.6, worse
Sica12 F 4 CP
No current priceFs46 Hz −15%, better
Qts0.20 +11%, worse
Vas52 L +7%
BL26.0 T·m +28%, better
Xmax6 mm −14%, worse
Sensitivity95.8 dB −2.8, worse
CelestionCF1230F
No current priceFs57 Hz +5%
Qts0.32 +76%, worse
Vas49.6 L –
BL18.3 T·m −10%, worse
Xmax7.5 mm +7%
Sensitivity96.2 dB −2.4, worse
No photo
PHL Audio4071-1
No current priceFs47 Hz −13%, better
Qts0.24 +33%, worse
Vas57.8 L +19%, worse
BL20.6 T·m –
Xmax6.5 mm −7%
Sensitivity95.7 dB −2.9, worse
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Audio Video Parts Import VAT and duty may apply | £125.46 | Special order | Visit shop at Audio Video Parts |