- Net volume
- 40L
- Tuning
- 60Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
12-inch LF driver · 12CLA series · 76 mm voice coil · 350 W
B&C 12CLA76 8Ω
8 Ω · 50–3000 Hz
£153.54
SteadyJP Leisure · In stock · All 5 offers
- Fs
- 52Hz
- Xmax
- 5.3mm
- SPL
- 97dB
- Pe
- 350W
- BL
- 20.2T·m
- Vd
- 277cm³
- Qts
- 0.25
- Vas
- 56L
Published graphs
B&C 12CLA76 is a 12-inch 8 ohm LF driver rated at 350 W RMS. The validated T/S data includes Fs 52 Hz, Qts 0.25, Vas 56 L, Xmax 5.3 mm, sensitivity 96.8 dB, plus 277 cm³ Vd and 200 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 £153.30.
The published T/S values agree with each other
Thiele/Small
- Fs
- 52Hz
- Qts
- 0.25
- Qes
- 0.26
- Qms
- 4.9
- Vas
- 56L
- Re
- 5.1Ω
- Le
- 0.44mH
Motor and cone
- BL
- 20.2T·m
- Sd
- 522cm²
- Mms
- 64g
- Xmax
- 5.3mm
- Vd †
- 277cm³
- Voice coil
- 76mm
- Flux density
- 1.20T
Power and response
- Sensitivity †
- 96.8dB
- Manufacturer sensitivity
- 98.5dB
- Power
- 350W
- Nominal power
- 350W
- Impedance
- 8Ω
- Min. impedance
- 6.1Ω
- Range
- 50–3000Hz
- EBP †
- 200 · Leans vented
Size and mounting
- Diameter
- 313mm
- Cutout
- 283mm
- Bolt circle
- 299mm
- Depth
- 143mm
- Weight
- 3.3kg
Sensitivity shows 96.8 dB, calculated from the T/S values. B&C publishes 98.5 dB, 1.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 20.2T·m
- Fs
- 52Hz
- Le
- 0.44mH
- Re
- 5.1Ω
- Sd
- 522cm²
- Mms
- 64g
- Qes
- 0.26
- Qms
- 4.9
- Qts
- 0.25
- SPL
- 96.8dB
- Vas
- 56L
- Xmax
- 5.3mm
- Power
- 350W
- Impedance
- 8Ω
- Flux density
- 1.20T
- Sensitivity
- 98.5dB
- Low limit
- 50Hz
- Nominal power
- 350W
- Calculated sensitivity †
- 96.8dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 98.5dB
- Min. impedance
- 6.1Ω
- Voice coil
- 76mm
- Weight
- 3.3kg
- Diameter
- 313mm
- Depth
- 143mm
- Cutout
- 283mm
- Bolt circle
- 299mm
- Bl
- 20.2 Tm
- Fs
- 52 Hz
- Le
- 0.44 mH
- Re
- 5.1 Ω
- Sd
- 522 cm² (80.91 in²)
- Ebp
- 200 Hz
- Mms
- 64 g
- Qes
- 0.26
- Qms
- 4.9
- Qts
- 0.25
- Vas
- 56 dm³ (1.98 ft³)
- Η0
- 2.9 %
- Cone
- RCK12CLA768
- Xmax
- 5.3 mm
- Xvar
- 6.5 mm
- Depth
- 143 mm (5.63 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 3.3 kg (7.28 lb)
- Pole design
- Straight Pole
- Sensitivity
- 98.5 dB
- Flux density
- 1.2 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 16 mm (0.63 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 50 Hz - 3000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 4.2 kg (9.26 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 313 mm (12.32 in)
- Winding material
- CCAW
- Minimum impedance
- 6.1 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 11 mm (0.43 in)
- Recommended tuning
- 60 Hz
- Voice coil diameter
- 76 mm (3 in)
- Bolt circle diameter
- 299 mm (11.77 in)
- Recommended enclosure
- 40 dm³ (1.41 ft³)
- Woofer cone treatment
- WP Waterproof Front Side
- Baffle cutout diameter
- 283 mm (11.14 in)
- Nominal power handling
- 350 W
- Continuous power handling
- 700 W
- Flange and gasket thickness
- 9 mm (0.37 in)
- Air volume occupied by driver
- 2.3 dm³ (0.08 ft³)
B&C’s suggested box
From B&C’s 12CLA76 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 12CLA76. Clear differences are green when better and red when worse.
This driver12CLA76
Best price
£153.30
Fs
52 Hz
Qts
0.25
Vas
56 L
BL
20.2 T·m
Xmax
5.3 mm
Sensitivity
96.8 dB
Power
350 W
B&C12CL76
£126.31 · 18% less, betterFs48 Hz −8%
Qts0.21 −16%, better
Vas59 L +5%
BL22.4 T·m +11%, better
Xmax6 mm +13%, better
Sensitivity96.8 dB –
B&C12PLB76
£150.76 · 2% lessFs50 Hz −4%
Qts0.23 −8%
Vas75 L +34%, worse
BL18.6 T·m −8%
Xmax5 mm −6%
Sensitivity97.9 dB +1.1
Beyma12MCB700
£174.16 · 14% more, worseFs51 Hz –
Qts0.27 +8%
Vas59.5 L +6%
BL20.4 T·m –
Xmax7 mm +32%, better
Sensitivity96.4 dB –
RCFMB12N301
£183.23 · 20% more, worseFs54 Hz +4%
Qts0.24 −4%
Vas71 L +27%, worse
BL19 T·m −6%
Xmax6 mm +13%, better
Sensitivity98.4 dB +1.6
BMS12N610
£210.18 · 37% more, worseFs47 Hz −10%
Qts0.24 −4%
Vas70 L +25%, worse
BL21 T·m +4%
Xmax3.5 mm −34%, worse
Sensitivity96.7 dB –
B&C12NDL88
£210.89 · 38% more, worseFs51 Hz –
Qts0.27 +8%
Vas52 L −7%
BL19.9 T·m –
Xmax8 mm +51%, better
Sensitivity95.8 dB −1
Beyma12MC700ND
£217.96 · 42% more, worseFs51 Hz –
Qts0.24 −4%
Vas58 L +4%
BL21.6 T·m +7%
Xmax7 mm +32%, better
Sensitivity96.7 dB –
BMS12C262
£228.36 · 49% more, worseFs47 Hz −9%
Qts0.24 −4%
Vas60.6 L +8%
BL20.6 T·m –
Xmax2.5 mm −53%, worse
Sensitivity96.1 dB −0.7
Eighteen Sound12MB650
£231.73 · 51% more, worseFs48 Hz −8%
Qts0.23 −8%
Vas90 L +61%, worse
BL19 T·m −6%
Xmax5.5 mm +4%
Sensitivity98.2 dB +1.4
BMS12N620
£247.26 · 61% more, worseFs45 Hz −14%, better
Qts0.25 –
Vas72.7 L +30%, worse
BL20.6 T·m –
Xmax5.5 mm +4%
Sensitivity96 dB −0.8
BMS12N802
£271.01 · 77% more, worseFs43 Hz −17%, better
Qts0.24 −4%
Vas65 L +16%, worse
BL22.3 T·m +10%, better
Xmax4.5 mm −15%, worse
Sensitivity95.2 dB −1.6
BMS12N803
£285.67 · 86% more, worseFs41 Hz −21%, better
Qts0.24 −4%
Vas77 L +38%, worse
BL21.4 T·m +6%
Xmax6 mm +13%, better
Sensitivity95.3 dB −1.5
Eighteen Sound12NLW9410
£335.39 · 119% more, worseFs42 Hz −19%, better
Qts0.26 +4%
Vas55 L –
BL21.7 T·m +7%
Xmax11 mm +108%, better
Sensitivity93.8 dB −3, worse
Beyma12CXA400FE
£337.46 · 120% more, worseFs42 Hz −19%, better
Qts0.25 –
Vas94 L +68%, worse
BL19.8 T·m –
Xmax6 mm +13%, better
Sensitivity96.3 dB −0.5
Sica12 S 4 PL
£337.94 · 120% more, worseFs40 Hz −22%, better
Qts0.25 –
Vas57 L –
BL23.5 T·m +16%, better
Xmax7.5 mm +42%, better
Sensitivity93.6 dB −3.2, worse
Beyma12CXA400ND
£349.99 · 128% more, worseFs45 Hz −13%, better
Qts0.25 –
Vas88.5 L +58%, worse
BL21.4 T·m +6%
Xmax6 mm +13%, better
Sensitivity96.9 dB –
BMS12CN680
£365.51 · 138% more, worseFs46 Hz −12%, better
Qts0.26 +4%
Vas58 L +4%
BL20.6 T·m –
Xmax5.5 mm +4%
Sensitivity95.2 dB −1.6
Eighteen Sound12NCX750
£426.63 · 178% more, worseFs58 Hz +12%, worse
Qts0.29 +16%, worse
Vas63 L +13%, worse
BL17.5 T·m −13%, worse
Xmax5.5 mm +4%
Sensitivity98 dB +1.2
Eighteen Sound12NCX750H
£444.75 · 190% more, worseFs58 Hz +12%, worse
Qts0.29 +16%, worse
Vas63 L +13%, worse
BL17.5 T·m −13%, worse
Xmax5.5 mm +4%
Sensitivity98 dB +1.2
Oberton12B400
No current priceFs50 Hz –
Qts0.25 –
Vas74.7 L +33%, worse
BL18.4 T·m −9%
Xmax5.3 mm –
Sensitivity97.8 dB +1
No photo
PHL Audio4071-1
No current priceFs47 Hz −10%
Qts0.24 −4%
Vas57.8 L +3%
BL20.6 T·m –
Xmax6.5 mm +23%, better
Sensitivity95.7 dB −1.1
Oberton12H4CX72
No current priceFs50 Hz −4%
Qts0.25 –
Vas74.7 L +33%, worse
BL19.9 T·m –
Xmax4.5 mm −15%, worse
Sensitivity97.6 dB +0.8
Oberton12MB35
No current priceFs51 Hz –
Qts0.27 +7%
Vas50.1 L −11%, better
BL20.5 T·m –
Xmax6.8 mm +27%, better
Sensitivity96 dB −0.8
Oberton12B401
No current priceFs47 Hz −10%, better
Qts0.24 –
Vas69.6 L +24%, worse
BL19.9 T·m –
Xmax6.8 mm +27%, better
Sensitivity96.5 dB –
BMS12S302
No current priceFs45 Hz −13%, better
Qts0.25 –
Vas65 L +16%, worse
BL15.7 T·m −23%, worse
Xmax4.5 mm −15%, worse
Sensitivity95.5 dB −1.3
LavoceNBASS12-30
No current priceFs46 Hz −12%, better
Qts0.26 +4%
Vas68.6 L +23%, worse
BL19.5 T·m −3%
Xmax6.6 mm +25%, better
Sensitivity96 dB −0.8
FaneCOLOSSUS 12MB
No current priceFs55 Hz +6%
Qts0.29 +14%, worse
Vas56 L –
BL18.3 T·m −9%
Xmax5.5 mm +4%
Sensitivity96.5 dB –
Sica12 K 4 PL
No current priceFs49 Hz −7%
Qts0.25 –
Vas47.4 L −15%, better
BL22.9 T·m +13%, better
Xmax7 mm +32%, better
Sensitivity95 dB −1.8
No photo
PHL Audio4310NDU
No current priceFs43 Hz −17%, better
Qts0.27 +8%
Vas56.7 L –
BL22 T·m +9%
Xmax10 mm +89%, better
Sensitivity94.1 dB −2.7, worse
Sica12 PFS 4
No current priceFs39 Hz −25%, better
Qts0.26 +4%
Vas55.6 L –
BL23.9 T·m +18%, better
Xmax9 mm +70%, better
Sensitivity92.9 dB −3.9, 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 |
|---|---|---|---|---|
JP Leisure | £153.54, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £153.54 | In stock | Visit shop at JP Leisure | |
Blue Aran 5-7 weeks | £163.66 | 6.6% above the lowest price | 19 in stock | Visit shop at Blue Aran |
Audio Video Parts Import VAT and duty may apply | £127.10 | Special order | Visit shop at Audio Video Parts |
Best price over time
Tracked since 1 Apr
Recent changes
- 21 AugBlue Aran£99.00 → £163.66Up 65% from £99.00
- 23 JunJP Leisure£144.54 → £153.54Up 6.2% from £144.54
- 21 JunBlue Aran£163.82 → £99.00Down 40% from £163.82