12-inch LF driver · 12BG series · 76 mm voice coil · 500 W

B&C 12BG76 8Ω

Name: B&C 12BG76 8 Ohm
Brand: B&C
SKU: 12BG76
Availability: InStock

8 Ω · 45–1000 Hz

£250.08

Steady

JP Leisure · In stock · All 6 offers

Open in 00 Simulator

Fs: 44Hz
Xmax: 9.5mm
SPL: 90dB
Pe: 500W
BL: 22.7T·m
Vd: 496cm³
Qts: 0.41
Vas: 32L

See all 27 specs

Curve provenanceInspect 2 traces

These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works

free-air SPL
Frequency response
Trace datasheet-response-trace-poc/v2
240 plotted pointsSource file SHA-256 53dbb55e596b…Medium confidence4,438 selected pixels of 4,627
Manufacturer datasheet, page 3
free-air impedance
Impedance response
Trace datasheet-response-trace-poc/v2
240 plotted pointsSource file SHA-256 53dbb55e596b…Medium confidence2,850 selected pixels of 2,850
Manufacturer datasheet, page 3

Published graphs

Specifications

Published by B&C

Manufacturer page

Datasheet PDF

B&C 12BG76 is a 12-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 44 Hz, Qts 0.41, Vas 32 L, Xmax 9.5 mm, sensitivity 89.9 dB, plus 496 cm³ Vd and 100 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 £250.08.

The published T/S values agree with each other

Thiele/Small

Fs: 44Hz
Qts: 0.41
Qes: 0.44
Qms: 5.9
Vas: 32L
Re: 5.4Ω
Le: 1.10mH

Motor and cone

BL: 22.7T·m
Sd: 522cm²
Mms: 148g
Xmax: 9.5mm
Vd †: 496cm³
Voice coil: 76mm
Flux density: 1.25T

Power and response

Sensitivity †: 89.9dB
Manufacturer sensitivity: 92dB
Power: 500W
Nominal power: 500W
Impedance: 8Ω
Min. impedance: 6.5Ω
Range: 45–1000Hz
EBP †: 100 · Sealed or vented

Size and mounting

Diameter: 315mm
Cutout: 284mm
Bolt circle: 298mm
Depth: 161mm
Weight: 5.3kg

Sensitivity shows 89.9 dB, calculated from the T/S values. B&C publishes 92.0 dB, 2.1 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else B&C lists

LF

BL: 22.7T·m
Fs: 44Hz
Le: 1.10mH
Re: 5.4Ω
Sd: 522cm²
Mms: 148g
Qes: 0.44
Qms: 5.9
Qts: 0.41
SPL: 89.9dB
Vas: 32L
Xmax: 9.5mm
Power: 500W
Impedance: 8Ω
Flux density: 1.25T
Sensitivity: 92dB
Low limit: 45Hz
Nominal power: 500W
Calculated sensitivity †: 89.9dB
High limit: 1000Hz
Manufacturer sensitivity: 92dB
Min. impedance: 6.5Ω
Voice coil: 76mm
Weight: 5.3kg
Diameter: 315mm
Depth: 161mm
Cutout: 284mm
Bolt circle: 298mm
Bl: 22.7 Tm
Fs: 44 Hz
Le: 1.1 mH
Re: 5.4 Ω
Sd: 522 cm² (80.91 in²)
Ebp: 100 Hz
Mms: 148 g
Qes: 0.44
Qms: 5.9
Qts: 0.41
Vas: 32 dm³ (1.13 ft³)
Η0: 0.65 %
Cone: RCK12BG768
Xmax: 9.5 mm
Xvar: 14 mm
Depth: 161 mm (6.34 in)
Spider: Double Silicone
Cone shape: Radial
Net weight: 5.3 kg (11.68 lb)
Pole design: T-Pole
Sensitivity: 92 dB
Flux density: 1.25 T
Shipping box: 360x360x200 mm (14.17x14.17x7.87 in)
Winding depth: 25 mm (0.98 in)
Shipping units: 1 pcs
Surround shape: Roll
Former material: Glass Fibre
Frequency range: 45 Hz - 1000 Hz
Magnet material: Neodymium Ring
Shipping weight: 6.2 kg (13.67 lb)
Nominal diameter: 320 mm (12 in)
Overall diameter: 315 mm (12.4 in)
Winding material: Copper
Minimum impedance: 6.5 Ω
Nominal impedance: 8 Ω
Magnetic gap depth: 11.5 mm (0.45 in)
Recommended tuning: 42 Hz
Voice coil diameter: 76 mm (3 in)
Bolt circle diameter: 298 mm (11.73 in)
Recommended enclosure: 40 dm³ (1.41 ft³)
Woofer cone treatment: TWP Waterproof Both Sides
Baffle cutout diameter: 284 mm (11.18 in)
Nominal power handling: 500 W
Continuous power handling: 1000 W
Flange and gasket thickness: 21 mm (0.83 in)
Air volume occupied by driver: 2 dm³ (0.07 ft³)

Designs

Cabinets for the 12BG76: a design and a suggested box from B&C.

All 12BG76 designs How we find designs

B&C’s design

From the maker, with plans to download

Picture: B&C

B&C design

S12BP

12" 1000W 6th Order Bandpass Subwoofer

Drivers: 1 × 12BG76, 8 Ω
Output: 129 dB peak, CEA-2010B
Power: 1,000 W

Plans · ZIP B&C designs

B&C’s suggested box

From B&C’s 12BG76 page

B&C’s suggestion40 L vented boxFrom B&C’s 12BG76 page

Net volume: 40L
Tuning: 42Hz

B&C gives the volume and tuning; the port is sized for the driver when you open it.

Open this box in 00 Simulator

Modelling the box in 00 Simulator…

Compare

Same-size drivers, compared with the 12BG76. Clear differences are green when better and red when worse.

This driver12BG76

Best price

£250.08

44 Hz

Qts

0.41

Vas

32 L

22.7 T·m

Xmax

9.5 mm

Sensitivity

89.9 dB

Power

500 W

EminenceTHE TONKER

£102.56 · 59% less

Fs89 Hz +102%

Qts0.47 +15%

Vas34.1 L +7%

BL17.4 T·m −23%

Xmax0.8 mm −92%

Sensitivity98.9 dB +9

Dayton AudioDCS305-4

£117.73 · 53% less

Fs24 Hz −45%

Qts0.40 –

Vas92.3 L +188%

BL13.7 T·m −40%

Xmax9.3 mm –

Sensitivity86.9 dB −3

B&C12PLB100

£143.50 · 43% less

Fs50 Hz +14%

Qts0.37 −10%

Vas47 L +47%

BL18.4 T·m −19%

Xmax9 mm −5%

Sensitivity93.9 dB +4

PRV Audio12W1600

£151.37 · 39% less

Fs51 Hz +16%

Qts0.39 −5%

Vas47.0 L +47%

BL20.4 T·m −10%

Xmax10.5 mm +11%

Sensitivity94 dB +4.1

Sica12 SR 3 CP

£156.69 · 37% less

Fs37 Hz −16%

Qts0.40 –

Vas60.9 L +90%

BL16.6 T·m −27%

Xmax8 mm −16%

Sensitivity90.3 dB –

FaitalPRO12RS550

£160.07 · 36% less

Fs42 Hz −5%

Qts0.37 −10%

Vas45.4 L +42%

BL20.5 T·m −10%

Xmax9.3 mm –

Sensitivity91.4 dB +1.5

EminenceOMEGA PRO-12-2KW-8

£174.14 · 30% less

Fs48 Hz +9%

Qts0.39 −5%

Vas49.5 L +55%

BL20.4 T·m −10%

Xmax7.1 mm −25%

Sensitivity93.4 dB +3.5

Beyma12LX60V2

£184.93 · 26% less

Fs49 Hz +11%

Qts0.38 −7%

Vas43 L +34%

BL20 T·m −12%

Xmax9 mm −5%

Sensitivity93 dB +3.1

CelestionFTR12-4080HDX

£219.00 · 12% less

Fs61 Hz +39%

Qts0.40 −4%

Vas21.5 L −33%

BL24.6 T·m +9%

Xmax8 mm −16%

Sensitivity92.1 dB +2.2

B&C12FG100

£227.46 · 9% less

Fs34 Hz −23%

Qts0.36 −12%

Vas49 L +53%

BL21.4 T·m −6%

Xmax10.3 mm +8%

Sensitivity89 dB −0.9

Eighteen Sound12NW530

£228.40 · 9% less

Fs55 Hz +25%

Qts0.37 −10%

Vas36 L +13%

BL19.7 T·m −13%

Xmax8 mm −16%

Sensitivity94 dB +4.1

FaitalPRO12HP1020

£235.45 · 6% less

Fs55 Hz +25%

Qts0.27 −34%

Vas38.6 L +21%

BL24.3 T·m +7%

Xmax9 mm −5%

Sensitivity95.6 dB +5.7

B&C12BG100

£245.90 · 2% less

Fs39 Hz −11%

Qts0.33 −20%

Vas41 L +28%

BL23 T·m –

Xmax10.5 mm +11%

Sensitivity90.4 dB +0.5

Eighteen Sound12NTLW2500

£246.38 · 1% less

Fs60 Hz +36%

Qts0.38 −7%

Vas45 L +41%

BL17.4 T·m −23%

Xmax7.6 mm −20%

Sensitivity96 dB +6.1

REDCATT123NPM

£251.97 · Same price

Fs58 Hz +32%

Qts0.43 +5%

Vas31.6 L –

BL19.6 T·m −14%

Xmax5.3 mm −45%

Sensitivity93.4 dB +3.5

FaitalPRO12RS1066

£253.24 · 1% more

Fs42 Hz −5%

Qts0.33 −20%

Vas31.5 L –

BL24.8 T·m +9%

Xmax12.4 mm +31%

Sensitivity90.4 dB +0.5

Eighteen Sound12NLW9300

£274.84 · 10% more

Fs47 Hz +7%

Qts0.42 –

Vas56 L +75%

BL17 T·m −25%

Xmax8 mm −16%

Sensitivity93.1 dB +3.2

FaitalPRO12XL1200

£295.59 · 18% more

Fs50 Hz +14%

Qts0.42 –

Vas25 L −22%

BL23.6 T·m +4%

Xmax12.4 mm +31%

Sensitivity90.6 dB +0.7

Eighteen Sound12NTLS3500

£299.50 · 20% more

Fs41 Hz −7%

Qts0.41 –

Vas65 L +103%

BL17.8 T·m −22%

Xmax7.9 mm −17%

Sensitivity92.2 dB +2.3

FaitalPRO12HX500

£391.29 · 56% more

Fs55 Hz +25%

Qts0.37 −10%

Vas57.8 L +81%

BL17.4 T·m −23%

Xmax9.3 mm –

Sensitivity95.9 dB +6

PRV Audio12W2000

No current price

Fs53 Hz +21%

Qts0.37 −10%

Vas38.7 L +21%

BL22.6 T·m –

Xmax10.3 mm +8%

Sensitivity93.9 dB +4

P.Audio12NT-100MB

No current price

Fs55 Hz +25%

Qts0.40 –

Vas30.5 L −5%

BL21.6 T·m −5%

Xmax5.5 mm −42%

Sensitivity92.9 dB +3

PRV Audio12W5000-2

No current price

Fs87 Hz +98%

Qts0.43 +5%

Vas11.8 L −63%

BL17.0 T·m −25%

Xmax10 mm +5%

Sensitivity94.5 dB +4.6

Oberton12NB601

No current price

Fs50 Hz +15%

Qts0.30 −26%

Vas38.7 L +21%

BL22.9 T·m –

Xmax8.8 mm −8%

Sensitivity94 dB +4.1

JensenBS10N250A-8

No current price

Fs58 Hz +32%

Qts0.43 +5%

Vas30.9 L −3%

BL12.9 T·m −43%

Xmax5 mm −47%

Sensitivity93.2 dB +3.3

P.Audio12FT-100MB

No current price

Fs55 Hz +25%

Qts0.40 –

Vas46.4 L +45%

BL18.6 T·m −18%

Xmax3.7 mm −61%

Sensitivity94.6 dB +4.7

P.Audio12FT-76MB

No current price

Fs50 Hz +14%

Qts0.40 –

Vas46.5 L +45%

BL18.9 T·m −17%

Xmax4.8 mm −49%

Sensitivity93.4 dB +3.5

PeerlessNCP-1230R01-08

No current price

Fs63 Hz +43%

Qts0.37 −10%

Vas46.3 L +45%

BL18.1 T·m −20%

Xmax7.9 mm −17%

Sensitivity96.7 dB +6.8

Sica12 SR 4 CP

No current price

Fs38 Hz −14%

Qts0.30 −27%

Vas41.7 L +30%

BL24 T·m +6%

Xmax9 mm −5%

Sensitivity90.7 dB +0.8

Eighteen Sound12LW801

No current price

Fs54 Hz +23%

Qts0.33 −20%

Vas41 L +28%

BL20.3 T·m −11%

Xmax8 mm −16%

Sensitivity94.8 dB +4.9

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
JP Leisure Checked 9 Oct 2026 · 8 Ω · Source: ex VAT · 20%	£250.08, the lowest price		In stock	Visit shop at JP Leisure
JP Leisure 8 Ω · Source: ex VAT · 20% Not currently listed · Last seen 7 Aug 2026	£250.08		In stock	Visit shop at JP Leisure
Blue Aran Checked 9 Oct 2026 · 8 Ω · Source: inc VAT · 20% 5-7 weeks	£275.65	10% above the lowest price	8 in stock	Visit shop at Blue Aran
Audio Video Parts Checked 9 Oct 2026 · Ships from Italy · 8 Ω · Source: inc VAT · 22% Import VAT and duty may apply	£216.52		Special order	Visit shop at Audio Video Parts

Best price over time

Tracked since 1 Apr

Recent changes

2 JulBlue Aran£139.00 → £275.65Up 98% from £139.00
23 JunJP Leisure£239.93 → £250.08Up 4.2% from £239.93
21 JunBlue Aran£169.00 → £139.00Down 18% from £169.00

Shop

Price

Stock

JP Leisure

Checked 9 Oct 2026 · 8 Ω · Source: ex VAT · 20%

£250.08

In stock

Visit shop

JP Leisure

8 Ω · Source: ex VAT · 20%

Not currently listed · Last seen 7 Aug 2026

£250.08

In stock

Visit shop

Blue Aran

Checked 9 Oct 2026 · 8 Ω · Source: inc VAT · 20%

5-7 weeks

£275.65

8 in stock

Visit shop

Audio Video Parts

Checked 9 Oct 2026 · Ships from Italy · 8 Ω · Source: inc VAT · 22%

Import VAT and duty may apply

£216.52

Special order

Visit shop