- 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 8Ω
55–3000 Hz
£151.51
SteadyJP Leisure · In stock · All 8 offers
- Fs
- 54Hz
- Xmax
- 7mm
- SPL
- 98dB
- Pe
- 500W
- BL
- 26.4T·m
- Vd
- 365cm³
- Qts
- 0.18
- Vas
- 45L
Published graphs
B&C 12FW76 is a 12-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 54 Hz, Qts 0.18, Vas 45 L, Xmax 7 mm, sensitivity 98 dB, plus 365 cm³ Vd and 300 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 £150.76.
The published T/S values agree with each other
Thiele/Small
- Fs
- 54Hz
- Qts
- 0.18
- Qes
- 0.18
- Qms
- 3.8
- Vas
- 45L
- Re
- 5.1Ω
- Le
- 1.40mH
Motor and cone
- BL
- 26.4T·m
- Sd
- 522cm²
- Mms
- 75g
- Xmax
- 7mm
- Vd †
- 365cm³
- Voice coil
- 76mm
- Flux density
- 1.35T
Power and response
- Sensitivity †
- 98dB
- Manufacturer sensitivity
- 100dB
- Power
- 500W
- Nominal power
- 500W
- Impedance
- 8Ω
- Min. impedance
- 6.8Ω
- Range
- 55–3000Hz
- EBP †
- 300 · Leans vented
Size and mounting
- Diameter
- 315mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Depth
- 147mm
- Weight
- 8.6kg
Sensitivity shows 98.0 dB, calculated from the T/S values. B&C publishes 100.0 dB, 2.0 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 26.4T·m
- Fs
- 54Hz
- Le
- 1.40mH
- Re
- 5.1Ω
- Sd
- 522cm²
- Mms
- 75g
- Qes
- 0.18
- Qms
- 3.8
- Qts
- 0.18
- SPL
- 98dB
- Vas
- 45L
- Xmax
- 7mm
- Power
- 500W
- Impedance
- 8Ω
- Flux density
- 1.35T
- Sensitivity
- 100dB
- Low limit
- 55Hz
- Nominal power
- 500W
- Calculated sensitivity †
- 98dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 100dB
- Min. impedance
- 6.8Ω
- Voice coil
- 76mm
- Weight
- 8.6kg
- Diameter
- 315mm
- Depth
- 147mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Bl
- 26.4 Tm
- Fs
- 54 Hz
- Le
- 1.4 mH
- Re
- 5.1 Ω
- Sd
- 522 cm² (80.9 in²)
- Ebp
- 300 Hz
- Mms
- 75 g
- Qes
- 0.18
- Qms
- 3.8
- Qts
- 0.18
- Vas
- 45 dm³ (1.6 ft³)
- Η0
- 3.7 %
- Cone
- RCK12FW768
- Xmax
- 7 mm
- Xvar
- 10 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
- 100 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
- 6.8 Ω
- Nominal impedance
- 8 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
£150.76
Fs
54 Hz
Qts
0.18
Vas
45 L
BL
26.4 T·m
Xmax
7 mm
Sensitivity
98 dB
Power
500 W
B&C12CL76
£126.31 · 16% less, betterFs48 Hz −11%, better
Qts0.21 +17%, worse
Vas59 L +31%, worse
BL22.4 T·m −15%, worse
Xmax6 mm −14%, worse
Sensitivity96.8 dB −1.2
B&C12MH32
£139.23 · 8% less, betterFs53 Hz –
Qts0.19 +6%
Vas63 L +40%, worse
BL22.3 T·m −16%, worse
Xmax5 mm −29%, worse
Sensitivity98.7 dB +0.7
B&C12NDL76
£166.85 · 11% more, worseFs50 Hz −7%
Qts0.20 +11%, worse
Vas73 L +62%, worse
BL20.1 T·m −24%, worse
Xmax7 mm –
Sensitivity98.4 dB –
EminenceOMEGA PRO-12-2KW-8
£174.14 · 16% more, worseFs48 Hz −11%, better
Qts0.39 +117%, worse
Vas49.5 L +10%, worse
BL20.4 T·m −23%, worse
Xmax7.1 mm –
Sensitivity93.4 dB −4.6, worse
Beyma12P80FE
£175.00 · 16% more, worseFs48 Hz −11%, better
Qts0.21 +17%, worse
Vas61 L +36%, worse
BL23 T·m −13%, worse
Xmax7.5 mm +7%
Sensitivity96.9 dB −1.1
RCFMB12X351
£187.93 · 25% more, worseFs55 Hz –
Qts0.26 +44%, worse
Vas46 L –
BL22.5 T·m −15%, worse
Xmax7 mm –
Sensitivity96.6 dB −1.4
PRV Audio12MR2000X
£189.23 · 26% more, worseFs65 Hz +20%, worse
Qts0.28 +56%, worse
Vas39.6 L −12%, better
BL23.2 T·m −12%, worse
Xmax6.6 mm −6%
Sensitivity97.9 dB –
Eighteen Sound12LW800
£189.95 · 26% more, worseFs52 Hz −4%
Qts0.29 +61%, worse
Vas48 L +7%
BL21.3 T·m −19%, worse
Xmax6.5 mm −7%
Sensitivity95.6 dB −2.4, worse
B&C12NW76
£201.58 · 34% more, worseFs40 Hz −26%, better
Qts0.16 −11%, better
Vas76 L +69%, worse
BL25.5 T·m −3%
Xmax8 mm +14%, better
Sensitivity96.6 dB −1.4
Eighteen Sound12MB1000
£204.35 · 36% more, worseFs54 Hz –
Qts0.18 –
Vas60 L +33%, worse
BL23.5 T·m −11%, worse
Xmax2.5 mm −64%, worse
Sensitivity98.8 dB +0.8
REDCATT121NPM
£211.70 · 40% more, worseFs50 Hz −7%
Qts0.16 −11%, better
Vas59.2 L +32%, worse
BL27.8 T·m +5%
Xmax1.5 mm −79%, worse
Sensitivity98.7 dB +0.7
PRV Audio12MR2000-NDY
£211.94 · 41% more, worseFs54 Hz –
Qts0.34 +89%, worse
Vas48.2 L +7%
BL22.8 T·m −14%, worse
Xmax6.2 mm −12%, worse
Sensitivity95.5 dB −2.5, worse
Sica12 F 4 CP
£219.36 · 46% more, worseFs46 Hz −15%, better
Qts0.20 +11%, worse
Vas52 L +16%, worse
BL26.0 T·m –
Xmax6 mm −14%, worse
Sensitivity95.8 dB −2.2, worse
RCFMB12N351
£225.00 · 49% more, worseFs55 Hz –
Qts0.20 +11%, worse
Vas61 L +36%, worse
BL22.5 T·m −15%, worse
Xmax6 mm −14%, worse
Sensitivity98.9 dB +0.9
REDCATT122NPW
£251.97 · 67% more, worseFs35 Hz −35%, better
Qts0.17 −6%
Vas81.9 L +82%, worse
BL27 T·m –
Xmax5.8 mm −18%, worse
Sensitivity95.2 dB −2.8, worse
Eighteen Sound12NMB1000
£252.00 · 67% more, worseFs54 Hz –
Qts0.19 +6%
Vas58 L +29%, worse
BL24.4 T·m −8%
Xmax3.5 mm −50%, worse
Sensitivity98.8 dB +0.8
B&C12NW100
£252.39 · 67% more, worseFs42 Hz −22%, better
Qts0.20 +11%, worse
Vas44 L –
BL28 T·m +6%
Xmax9 mm +29%, better
Sensitivity93.9 dB −4.1, worse
BMS12C362
£287.08 · 90% more, worseFs46 Hz −15%, better
Qts0.20 +11%, worse
Vas60.6 L +35%, worse
BL23.2 T·m −12%, worse
Xmax4.5 mm −36%, worse
Sensitivity96.7 dB −1.3
BMS12N810
£315.78 · 109% more, worseFs41 Hz −25%, better
Qts0.16 −11%, better
Vas89.6 L +99%, worse
BL24.5 T·m −7%
Xmax2.5 mm −64%, worse
Sensitivity97.5 dB −0.5
Beyma12P80ND
£376.94 · 150% more, worseFs47 Hz −13%, better
Qts0.19 +6%
Vas65 L +44%, worse
BL23.7 T·m −10%, worse
Xmax7.5 mm +7%
Sensitivity97.3 dB −0.7
B&C12CXN76
£382.96 · 154% more, worseFs42 Hz −22%, better
Qts0.19 +6%
Vas120 L +167%, worse
BL17.6 T·m −33%, worse
Xmax6 mm −14%, worse
Sensitivity98.5 dB +0.5
B&C12HCX76
£385.07 · 155% more, worseFs42 Hz −22%, better
Qts0.19 +6%
Vas120 L +167%, worse
BL17.6 T·m −33%, worse
Xmax6 mm −14%, worse
Sensitivity98.5 dB +0.5
RCFMB12N405
No current priceFs52 Hz −4%
Qts0.20 +11%, worse
Vas53 L +18%, worse
BL23.5 T·m −11%, worse
Xmax7 mm –
Sensitivity97.5 dB −0.5
RCFCX12N351
No current priceFs58 Hz +7%
Qts0.20 +11%, worse
Vas47 L +4%
BL25 T·m −5%
Xmax6 mm −14%, worse
Sensitivity98.4 dB –
Eighteen Sound12ND940
No current priceFs49 Hz −9%
Qts0.20 +11%, worse
Vas64.8 L +44%, worse
BL22.2 T·m −16%, worse
Xmax7.6 mm +9%
Sensitivity97.8 dB –
Sica12 K 4 PL
No current priceFs49 Hz −10%, better
Qts0.25 +39%, worse
Vas47.4 L +5%
BL22.9 T·m −13%, worse
Xmax7 mm –
Sensitivity95 dB −3, worse
Oberton12NB400
No current priceFs44 Hz −19%, better
Qts0.18 –
Vas70.5 L +57%, worse
BL20.3 T·m −23%, worse
Xmax5.3 mm −25%, worse
Sensitivity97.1 dB −0.9
Precision DevicesPD.123C001
No current priceFs35 Hz −35%, better
Qts0.14 −20%, better
Vas122 L +171%, worse
BL24.5 T·m −7%
Xmax7.5 mm +7%
Sensitivity97.5 dB −0.5
CelestionTSQ1230
No current priceFs55 Hz –
Qts0.30 +68%, worse
Vas45.2 L –
BL20.5 T·m −22%, worse
Xmax6.8 mm −4%
Sensitivity95.8 dB −2.2, worse
BMS12S310
No current priceFs45 Hz −16%, better
Qts0.20 +11%, worse
Vas66.9 L +49%, worse
BL24.2 T·m −8%
Xmax2.5 mm −64%, worse
Sensitivity97 dB −1
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express5.0 out of 51 rating · Checked 9 Oct 2026Read reviews on Parts Express
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
JP Leisure | £151.51, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £151.51 | In stock | Visit shop at JP Leisure | |
Blue Aran 5-7 weeks | £161.30 | 6.5% above the lowest price | 16 in stock | Visit shop at Blue Aran |
Audio Video Parts Import VAT and duty may apply | £125.18 | Special order | Visit shop at Audio Video Parts | |
Parts Express Import VAT and duty may apply | £194.40 | 28% above the lowest price | 3 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£144.91 → £151.51Up 4.6% from £144.91
- 23 JunBlue Aran£161.48 → £161.30Down 0.1% from £161.48
- 5 JunBlue Aran£148.63 → £161.48Up 8.6% from £148.63