- 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 · 12CL series · 76 mm voice coil · 350 W
B&C 12CL76 8Ω
8 Ω · 45–3000 Hz
£137.00
1.4%Thomann · In stock · All 8 offers
- Fs
- 48Hz
- Xmax
- 6mm
- SPL
- 97dB
- Pe
- 350W
- BL
- 22.4T·m
- Vd
- 313cm³
- Qts
- 0.21
- Vas
- 59L
Published graphs
B&C 12CL76 is a 12-inch 8 ohm LF driver rated at 350 W RMS. The validated T/S data includes Fs 48 Hz, Qts 0.21, Vas 59 L, Xmax 6 mm, sensitivity 96.8 dB, plus 313 cm³ Vd and 218 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 £126.31.
The published T/S values agree with each other
Thiele/Small
- Fs
- 48Hz
- Qts
- 0.21
- Qes
- 0.22
- Qms
- 4.8
- Vas
- 59L
- Re
- 5.2Ω
- Le
- 1.50mH
Motor and cone
- BL
- 22.4T·m
- Sd
- 522cm²
- Mms
- 70g
- Xmax
- 6mm
- Vd †
- 313cm³
- Voice coil
- 76mm
- Flux density
- 1.05T
Power and response
- Sensitivity †
- 96.8dB
- Manufacturer sensitivity
- 98.5dB
- Power
- 350W
- Nominal power
- 350W
- Impedance
- 8Ω
- Min. impedance
- 6.5Ω
- Range
- 45–3000Hz
- EBP †
- 218 · Leans vented
Size and mounting
- Diameter
- 313mm
- Cutout
- 282mm
- Bolt circle
- 299mm
- Depth
- 142mm
- Weight
- 3.4kg
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
- 22.4T·m
- Fs
- 48Hz
- Le
- 1.50mH
- Re
- 5.2Ω
- Sd
- 522cm²
- Mms
- 70g
- Qes
- 0.22
- Qms
- 4.8
- Qts
- 0.21
- SPL
- 96.8dB
- Vas
- 59L
- Xmax
- 6mm
- Power
- 350W
- Impedance
- 8Ω
- Flux density
- 1.05T
- Sensitivity
- 98.5dB
- Low limit
- 45Hz
- Nominal power
- 350W
- Calculated sensitivity †
- 96.8dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 98.5dB
- Min. impedance
- 6.5Ω
- Voice coil
- 76mm
- Weight
- 3.4kg
- Diameter
- 313mm
- Depth
- 142mm
- Cutout
- 282mm
- Bolt circle
- 299mm
- Bl
- 22.4 Tm
- Fs
- 48 Hz
- Le
- 1.5 mH
- Re
- 5.2 Ω
- Sd
- 522 cm² (80.9 in²)
- Ebp
- 218 Hz
- Mms
- 70 g
- Qes
- 0.22
- Qms
- 4.8
- Qts
- 0.21
- Vas
- 59 dm³ (2.1 ft³)
- Η0
- 2.9 %
- Cone
- RCK12CL768
- Xmax
- 6 mm
- Xvar
- 8.5 mm
- Depth
- 142 mm (5.59 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 3.35 kg (7.39 lb)
- Pole design
- Straight Pole
- Sensitivity
- 98.5 dB
- Flux density
- 1.05 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 17 mm (0.67 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 45 Hz - 3000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 4.25 kg (9.37 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 313 mm (12.32 in)
- Winding material
- Copper
- Minimum impedance
- 6.5 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
- 282 mm (11.1 in)
- Nominal power handling
- 350 W
- Continuous power handling
- 700 W
- Flange and gasket thickness
- 9 mm (0.35 in)
- Air volume occupied by driver
- 2.3 dm³ (0.08 ft³)
B&C’s suggested box
From B&C’s 12CL76 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 12CL76. Clear differences are green when better and red when worse.
This driver12CL76
Best price
£126.31
Fs
48 Hz
Qts
0.21
Vas
59 L
BL
22.4 T·m
Xmax
6 mm
Sensitivity
96.8 dB
Power
350 W
B&C12MH32
£139.23 · 10% more, worseFs53 Hz +10%, worse
Qts0.19 −10%
Vas63 L +7%
BL22.3 T·m –
Xmax5 mm −17%, worse
Sensitivity98.7 dB +1.9
PRV Audio12MR1200X
£151.37 · 20% more, worseFs53 Hz +9%
Qts0.21 –
Vas71.8 L +22%, worse
BL22 T·m –
Xmax4.5 mm −25%, worse
Sensitivity99 dB +2.2, better
Beyma12MI100
£154.28 · 22% more, worseFs58 Hz +21%, worse
Qts0.22 +5%
Vas64 L +8%
BL21.6 T·m −4%
Xmax3 mm −50%, worse
Sensitivity99.4 dB +2.6, better
B&C12NDL76
£166.85 · 32% more, worseFs50 Hz +4%
Qts0.20 −5%
Vas73 L +24%, worse
BL20.1 T·m −10%, worse
Xmax7 mm +17%, better
Sensitivity98.4 dB +1.6
Precision DevicesPD.121/2
£169.00 · 34% more, worseFs53 Hz +11%, worse
Qts0.23 +10%
Vas66.6 L +13%, worse
BL21.5 T·m −4%
Xmax2.7 mm −55%, worse
Sensitivity98.4 dB +1.6
Beyma12P80FE
£175.00 · 39% more, worseFs48 Hz –
Qts0.21 –
Vas61 L +3%
BL23 T·m –
Xmax7.5 mm +25%, better
Sensitivity96.9 dB –
RCFMB12N301
£183.23 · 45% more, worseFs54 Hz +13%, worse
Qts0.24 +14%, worse
Vas71 L +20%, worse
BL19 T·m −15%, worse
Xmax6 mm –
Sensitivity98.4 dB +1.6
BMS12S320
£204.98 · 62% more, worseFs45 Hz −5%
Qts0.20 −5%
Vas69.5 L +18%, worse
BL23.3 T·m +4%
Xmax4.5 mm −25%, worse
Sensitivity96.9 dB –
Beyma12MC700ND
£217.96 · 73% more, worseFs51 Hz +6%
Qts0.24 +14%, worse
Vas58 L –
BL21.6 T·m −4%
Xmax7 mm +17%, better
Sensitivity96.7 dB –
Sica12 F 4 CP
£219.36 · 74% more, worseFs46 Hz −4%
Qts0.20 −5%
Vas52 L −12%, better
BL26.0 T·m +16%, better
Xmax6 mm –
Sensitivity95.8 dB −1
RCFMB12N351
£225.00 · 78% more, worseFs55 Hz +15%, worse
Qts0.20 −5%
Vas61 L +3%
BL22.5 T·m –
Xmax6 mm –
Sensitivity98.9 dB +2.1, better
Eighteen Sound12ND930
£248.59 · 97% more, worseFs50 Hz +4%
Qts0.21 –
Vas70 L +19%, worse
BL21.2 T·m −5%
Xmax6.5 mm +8%
Sensitivity98 dB +1.2
BMS12N803
£285.67 · 126% more, worseFs41 Hz −15%, better
Qts0.24 +14%, worse
Vas77 L +31%, worse
BL21.4 T·m −5%
Xmax6 mm –
Sensitivity95.3 dB −1.5
BMS12C362
£287.08 · 127% more, worseFs46 Hz −5%
Qts0.20 −5%
Vas60.6 L –
BL23.2 T·m +4%
Xmax4.5 mm −25%, worse
Sensitivity96.7 dB –
Beyma12P80ND
£376.94 · 198% more, worseFs47 Hz –
Qts0.19 −10%
Vas65 L +10%, worse
BL23.7 T·m +6%
Xmax7.5 mm +25%, better
Sensitivity97.3 dB +0.5
B&C12CXN88
£465.46 · 269% more, worseFs50 Hz +4%
Qts0.22 +5%
Vas59 L –
BL20.9 T·m −7%
Xmax10.5 mm +75%, better
Sensitivity97.1 dB –
RCFCX12N351
No current priceFs58 Hz +21%, worse
Qts0.20 −5%
Vas47 L −20%, better
BL25 T·m +12%, better
Xmax6 mm –
Sensitivity98.4 dB +1.6
RCFMB12N405
No current priceFs52 Hz +8%
Qts0.20 −5%
Vas53 L −10%, better
BL23.5 T·m +5%
Xmax7 mm +17%, better
Sensitivity97.5 dB +0.7
RCFLF12P903
No current priceFs47 Hz –
Qts0.23 +10%
Vas65 L +10%, worse
BL22.1 T·m –
Xmax7 mm +17%, better
Sensitivity96.5 dB –
Eighteen Sound12ND940
No current priceFs49 Hz –
Qts0.20 −5%
Vas64.8 L +10%
BL22.2 T·m –
Xmax7.6 mm +27%, better
Sensitivity97.8 dB +1
Oberton12NXL400
No current priceFs49 Hz –
Qts0.20 −3%
Vas79.2 L +34%, worse
BL20.6 T·m −8%
Xmax5.3 mm −13%, worse
Sensitivity98.5 dB +1.7
No photo
PHL Audio4071-1
No current priceFs47 Hz –
Qts0.24 +14%, worse
Vas57.8 L –
BL20.6 T·m −8%
Xmax6.5 mm +8%
Sensitivity95.7 dB −1.1
LavoceCAN123.00T
No current priceFs46 Hz −4%
Qts0.22 +5%
Vas91 L +54%, worse
BL18.5 T·m −17%, worse
Xmax6 mm –
Sensitivity97.9 dB +1.1
LavoceCAN123.00TH
No current priceFs46 Hz −4%
Qts0.22 +5%
Vas91 L +54%, worse
BL18.5 T·m −17%, worse
Xmax6 mm –
Sensitivity97.9 dB +1.1
No photo
PHL Audio4051
No current priceFs49 Hz –
Qts0.20 −5%
Vas85.2 L +44%, worse
BL20.9 T·m −7%
Xmax5 mm −17%, worse
Sensitivity98.8 dB +2, better
Eighteen Sound12MB710
No current priceFs46 Hz −4%
Qts0.20 −5%
Vas81 L +37%, worse
BL20.5 T·m −8%
Xmax5 mm −17%, worse
Sensitivity98 dB +1.2
Eighteen Sound12MB720
No current priceFs46 Hz −4%
Qts0.20 −5%
Vas81 L +37%, worse
BL20.5 T·m −8%
Xmax5 mm −17%, worse
Sensitivity98 dB +1.2
Eighteen Sound12MB810
No current priceFs46 Hz −4%
Qts0.20 −5%
Vas81 L +37%, worse
BL20.5 T·m −8%
Xmax5 mm −17%, worse
Sensitivity98 dB +1.2
Oberton12NB450
No current priceFs46 Hz −3%
Qts0.20 –
Vas72.6 L +23%, worse
BL20.3 T·m −9%
Xmax7.8 mm +29%, better
Sensitivity97.5 dB +0.7
BMS12S310
No current priceFs45 Hz −6%
Qts0.20 −5%
Vas66.9 L +13%, worse
BL24.2 T·m +8%
Xmax2.5 mm −58%, worse
Sensitivity97 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.5 out of 52 ratings · 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 |
|---|---|---|---|---|
Thomann | £137.00, the lowest price | In stock | Visit shop at Thomann | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £143.98 | 5.1% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £143.98 | 5.1% above the lowest price | In stock | Visit shop at JP Leisure |
Blue Aran | £152.56 | 11% above the lowest price | Due 16 Oct 2026 | Visit shop at Blue Aran |
Audio Video Parts Import VAT and duty may apply | £118.16 | Special order | Visit shop at Audio Video Parts | |
Parts Express Import VAT and duty may apply | £173.45 | 27% above the lowest price | 4 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 4 OctThomann£139.00 → £137.00Down 1.4% from £139.00
- 26 SepThomann£138.00 → £139.00Up 0.7% from £138.00
- 18 SepThomann£139.00 → £138.00Down 0.7% from £139.00