- Net volume
- 40L
- Tuning
- 40Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
12-inch LF driver · 12BG series · 100 mm voice coil · 1,000 W
B&C 12BG100 8Ω
8 Ω · 40–1000 Hz
£281.76
SteadyJP Leisure · In stock · All 10 offers
- Fs
- 39Hz
- Xmax
- 10.5mm
- SPL
- 90dB
- Pe
- 1000W
- BL
- 23T·m
- Vd
- 548cm³
- Qts
- 0.33
- Vas
- 41L
Published graphs
B&C 12BG100 is a 12-inch 8 ohm LF driver rated at 1000 W RMS. The validated T/S data includes Fs 39 Hz, Qts 0.33, Vas 41 L, Xmax 10.5 mm, sensitivity 90.4 dB, plus 548 cm³ Vd and 111 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 £246.44.
The published T/S values agree with each other
Thiele/Small
- Fs
- 39Hz
- Qts
- 0.33
- Qes
- 0.35
- Qms
- 6.8
- Vas
- 41L
- Re
- 5.1Ω
- Le
- 1.60mH
Motor and cone
- BL
- 23T·m
- Sd
- 522cm²
- Mms
- 152g
- Xmax
- 10.5mm
- Vd †
- 548cm³
- Voice coil
- 100mm
- Flux density
- 1.15T
Power and response
- Sensitivity †
- 90.4dB
- Manufacturer sensitivity
- 93dB
- Power
- 1000W
- Nominal power
- 1000W
- Impedance
- 8Ω
- Min. impedance
- 5.8Ω
- Range
- 40–1000Hz
- EBP †
- 111 · Leans vented
Size and mounting
- Diameter
- 319mm
- Cutout
- 281mm
- Bolt circle
- 299mm
- Depth
- 137mm
- Weight
- 8.8kg
Sensitivity shows 90.4 dB, calculated from the T/S values. B&C publishes 93.0 dB, 2.6 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 23T·m
- Fs
- 39Hz
- Le
- 1.60mH
- Re
- 5.1Ω
- Sd
- 522cm²
- Mms
- 152g
- Qes
- 0.35
- Qms
- 6.8
- Qts
- 0.33
- SPL
- 90.4dB
- Vas
- 41L
- Xmax
- 10.5mm
- Power
- 1000W
- Impedance
- 8Ω
- Flux density
- 1.15T
- Sensitivity
- 93dB
- Low limit
- 40Hz
- Nominal power
- 1000W
- Calculated sensitivity †
- 90.4dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 93dB
- Min. impedance
- 5.8Ω
- Voice coil
- 100mm
- Weight
- 8.8kg
- Diameter
- 319mm
- Depth
- 137mm
- Cutout
- 281mm
- Bolt circle
- 299mm
- Bl
- 23 Tm
- Fs
- 39 Hz
- Le
- 1.6 mH
- Re
- 5.1 Ω
- Sd
- 522 cm² (80.9 in²)
- Ebp
- 111 Hz
- Mms
- 152 g
- Qes
- 0.35
- Qms
- 6.8
- Qts
- 0.33
- Vas
- 41 dm³ (1.45 ft³)
- Η0
- 0.7 %
- Cone
- RCK12BG1008
- Xmax
- 10.5 mm
- Xvar
- 14 mm
- Depth
- 137 mm (5.4 in)
- Spider
- Double Silicone
- Cone shape
- Radial
- Net weight
- 8.8 kg (19.4 lb)
- Pole design
- T-Pole
- Sensitivity
- 93 dB
- Flux density
- 1.15 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 27 mm (1.05 in)
- Shipping units
- 1 pcs
- Surround shape
- Roll
- Former material
- Glass Fibre
- Frequency range
- 40 Hz - 1000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 9.7 kg (21.38 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 319 mm (12.5 in)
- Winding material
- Copper
- Minimum impedance
- 5.8 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 11 mm (0.43 in)
- Recommended tuning
- 40 Hz
- Voice coil diameter
- 100 mm (4 in)
- Bolt circle diameter
- 299 mm (11.8 in)
- Recommended enclosure
- 40 dm³ (1.41 ft³)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Baffle cutout diameter
- 281 mm (11.1 in)
- Nominal power handling
- 1000 W
- Continuous power handling
- 2000 W
- Flange and gasket thickness
- 13 mm (0.5 in)
- Air volume occupied by driver
- 2.7 dm³ (0.09 ft³)
B&C’s suggested box
From B&C’s 12BG100 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 12BG100. Clear differences are green when better and red when worse.
This driver12BG100
Best price
£246.44
Fs
39 Hz
Qts
0.33
Vas
41 L
BL
23 T·m
Xmax
10.5 mm
Sensitivity
90.4 dB
Power
1000 W
CelestionFTR12-3070C
£134.96 · 45% less, betterFs65 Hz +67%, worse
Qts0.32 –
Vas43.7 L +7%
BL18.6 T·m −19%, worse
Xmax5.5 mm −48%, worse
Sensitivity97.3 dB +6.9, better
PRV Audio12MR2000
£143.05 · 42% less, betterFs57 Hz +47%, worse
Qts0.33 –
Vas52.5 L +28%, worse
BL21.3 T·m −8%
Xmax6.6 mm −37%, worse
Sensitivity96.6 dB +6.2, better
B&C12PLB100
£143.50 · 42% less, betterFs50 Hz +28%, worse
Qts0.37 +12%, worse
Vas47 L +15%, worse
BL18.4 T·m −20%, worse
Xmax9 mm −14%, worse
Sensitivity93.9 dB +3.5, better
PRV Audio12W1600
£150.58 · 39% less, betterFs51 Hz +31%, worse
Qts0.39 +18%, worse
Vas47.0 L +15%, worse
BL20.4 T·m −12%, worse
Xmax10.5 mm –
Sensitivity94 dB +3.6, better
B&C12FW88
£163.69 · 34% less, betterFs53 Hz +36%, worse
Qts0.33 –
Vas45.7 L +11%, worse
BL19.5 T·m −15%, worse
Xmax8 mm −24%, worse
Sensitivity94.9 dB +4.5, better
Eighteen Sound12W750
£174.69 · 29% less, betterFs55 Hz +41%, worse
Qts0.33 –
Vas61 L +49%, worse
BL23.5 T·m –
Xmax8 mm −24%, worse
Sensitivity96.7 dB +6.3, better
FaitalPRO12RS550
£179.10 · 27% less, betterFs42 Hz +8%
Qts0.37 +12%, worse
Vas45.4 L +11%, worse
BL20.5 T·m −11%, worse
Xmax9.3 mm −12%, worse
Sensitivity91.4 dB +1
Beyma12LX60V2
£184.93 · 25% less, betterFs49 Hz +26%, worse
Qts0.38 +15%, worse
Vas43 L +5%
BL20 T·m −13%, worse
Xmax9 mm −14%, worse
Sensitivity93 dB +2.6, better
FaitalPRO12HP1010
£191.59 · 22% less, betterFs45 Hz +15%, worse
Qts0.34 +3%
Vas56.5 L +38%, worse
BL19.8 T·m −14%, worse
Xmax9.3 mm −12%, worse
Sensitivity93.7 dB +3.3, better
Beyma12LEX1000FE
£203.63 · 17% less, betterFs49 Hz +26%, worse
Qts0.30 −9%
Vas38.4 L −6%
BL24.6 T·m +7%
Xmax11 mm +5%
Sensitivity93.5 dB +3.1, better
PRV Audio12MR2000-NDY
£210.84 · 14% less, betterFs54 Hz +40%, worse
Qts0.34 +3%
Vas48.2 L +17%, worse
BL22.8 T·m –
Xmax6.2 mm −41%, worse
Sensitivity95.5 dB +5.1, better
PRV Audio12MR2000X-NDY
£210.84 · 14% less, betterFs67 Hz +72%, worse
Qts0.31 −6%
Vas35.9 L −12%, better
BL22.7 T·m –
Xmax6.1 mm −42%, worse
Sensitivity97.3 dB +6.9, better
Dayton AudioMX12-22
£212.16 · 14% less, betterFs29 Hz −26%, better
Qts0.35 +6%
Vas45.6 L +11%, worse
BL21.5 T·m −7%
Xmax15.5 mm +48%, better
Sensitivity86.5 dB −3.9, worse
Precision DevicesPD.124NR1
£221.00 · 10% less, betterFs58 Hz +49%, worse
Qts0.35 +6%
Vas49 L +20%, worse
BL19.2 T·m −17%, worse
Xmax8.5 mm −19%, worse
Sensitivity96.2 dB +5.8, better
B&C12FG100
£227.46 · 8% less, betterFs34 Hz −13%, better
Qts0.36 +9%
Vas49 L +20%, worse
BL21.4 T·m −7%
Xmax10.3 mm –
Sensitivity89 dB −1.4
FaitalPRO12HP1020
£235.97 · 4% lessFs55 Hz +41%, worse
Qts0.27 −18%, better
Vas38.6 L −6%
BL24.3 T·m +6%
Xmax9 mm −14%, worse
Sensitivity95.6 dB +5.2, better
FaitalPRO12HP1030
£250.40 · 2% moreFs45 Hz +15%, worse
Qts0.30 −9%
Vas35.9 L −12%, better
BL24.3 T·m +6%
Xmax12.4 mm +19%, better
Sensitivity92.3 dB +1.9
FaitalPRO12RS1066
£261.44 · 6% more, worseFs42 Hz +8%
Qts0.33 –
Vas31.5 L −23%, better
BL24.8 T·m +8%
Xmax12.4 mm +19%, better
Sensitivity90.4 dB –
Eighteen Sound12NW350
£276.22 · 12% more, worseFs54 Hz +38%, worse
Qts0.34 +3%
Vas46 L +12%, worse
BL19.2 T·m −17%, worse
Xmax8.3 mm −21%, worse
Sensitivity95.2 dB +4.8, better
Eighteen Sound12NTLW3500
£289.45 · 17% more, worseFs53 Hz +36%, worse
Qts0.33 –
Vas45 L +10%
BL19.5 T·m −15%, worse
Xmax8.3 mm −21%, worse
Sensitivity94.8 dB +4.4, better
Dayton AudioRSS315HO-4
£296.24 · 20% more, worseFs26 Hz −33%, better
Qts0.31 −6%
Vas53.7 L +31%, worse
BL20 T·m −13%, worse
Xmax12.3 mm +17%, better
Sensitivity86.7 dB −3.7, worse
Dayton AudioSS12-22
£297.05 · 21% more, worseFs27 Hz −31%, better
Qts0.35 +6%
Vas49.4 L +20%, worse
BL24.3 T·m +6%
Xmax23 mm +119%, better
Sensitivity86 dB −4.4, worse
PRV Audio12W2000
No current priceFs53 Hz +37%, worse
Qts0.37 +12%, worse
Vas38.7 L −6%
BL22.6 T·m –
Xmax10.3 mm –
Sensitivity93.9 dB +3.5, better
Eighteen Sound12LW801
No current priceFs54 Hz +38%, worse
Qts0.33 –
Vas41 L –
BL20.3 T·m −12%, worse
Xmax8 mm −24%, worse
Sensitivity94.8 dB +4.4, better
Oberton12NB601
No current priceFs50 Hz +29%, worse
Qts0.30 −8%
Vas38.7 L −6%
BL22.9 T·m –
Xmax8.8 mm −17%, worse
Sensitivity94 dB +3.6, better
Sica12 PNS 4
No current priceFs42 Hz +7%
Qts0.31 −6%
Vas50.2 L +22%, worse
BL22.3 T·m −3%
Xmax9.5 mm −10%
Sensitivity92.6 dB +2.2, better
Sica12 SR 4 CP
No current priceFs38 Hz –
Qts0.30 −9%
Vas41.7 L –
BL24 T·m +4%
Xmax9 mm −14%, worse
Sensitivity90.7 dB –
P.Audio12NT-88MB
No current priceFs55 Hz +41%, worse
Qts0.32 −3%
Vas49.1 L +20%, worse
BL20.9 T·m −9%
Xmax5 mm −52%, worse
Sensitivity95.8 dB +5.4, better
MonacorFTR12-3070C/8
No current priceFs65 Hz +67%, worse
Qts0.32 –
Vas43.7 L +7%
BL18.6 T·m −19%, worse
Xmax5.5 mm −48%, worse
Sensitivity97.3 dB +6.9, better
Oberton12B45V
No current priceFs48 Hz +23%, worse
Qts0.35 +7%
Vas58.5 L +43%, worse
BL16.6 T·m −28%, worse
Xmax10.5 mm –
Sensitivity94.4 dB +4, better
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 52 ratings · Checked 7 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 | £281.76, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £281.76 | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £281.76 | In stock | Visit shop at JP Leisure | |
JP Leisure | £281.76 | In stock | Visit shop at JP Leisure | |
Blue Aran | £312.41 | 11% above the lowest price | 3 in stock | Visit shop at Blue Aran |
Blue Aran 5-7 weeks | £312.41 | 11% above the lowest price | 15 in stock | Visit shop at Blue Aran |
Audio Video Parts Import VAT and duty may apply | £246.44 | In stock | Visit shop at Audio Video Parts | |
Parts Express Import VAT and duty may apply | £359.39 | 28% above the lowest price | Back order | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£253.44 → £281.76Up 11% from £253.44
- 23 JunJP Leisure£271.75 → £281.76Up 3.7% from £271.75
- 23 JunBlue Aran£312.58 → £312.41Down 0.1% from £312.58