B&C design · archived
F121AN
12"/1" 800W Full Range Enclosure - 12" Neo Woofer + 1" HF Neo Driver on 90°x40° Exponential Horn
- Drivers
- 12NDL76, 8 Ω
- Power
- 800 W
Designed with the 8 Ω version.
12-inch LF driver · 12NDL series · 76 mm voice coil · 400 W
B&C 12NDL76 4Ω
50–2000 Hz
£169.00
SteadyBlue Aran · 2 in stock · All 8 offers
- Fs
- 50Hz
- Xmax
- 6mm
- SPL
- 98dB
- Pe
- 400W
- BL
- 16.5T·m
- Vd
- 313cm³
- Qts
- 0.19
- Vas
- 70L
Published graphs
B&C 12NDL76 is a 12-inch 4 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 50 Hz, Qts 0.19, Vas 70 L, Xmax 6 mm, sensitivity 98.4 dB, plus 313 cm³ Vd and 250 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 £167.22.
The published T/S values agree with each other
Thiele/Small
- Fs
- 50Hz
- Qts
- 0.19
- Qes
- 0.20
- Qms
- 3.3
- Vas
- 70L
- Re
- 3.1Ω
- Le
- 0.72mH
Motor and cone
- BL
- 16.5T·m
- Sd
- 522cm²
- Mms
- 54g
- Xmax
- 6mm
- Vd †
- 313cm³
- Voice coil
- 76mm
- Flux density
- 1.25T
Power and response
- Sensitivity †
- 98.4dB
- Manufacturer sensitivity
- 100dB
- Power
- 400W
- Nominal power
- 400W
- Impedance
- 4Ω
- Min. impedance
- 4.3Ω
- Range
- 50–2000Hz
- EBP †
- 250 · Leans vented
Size and mounting
- Diameter
- 315mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Depth
- 141mm
- Weight
- 3.9kg
Sensitivity shows 98.4 dB, calculated from the T/S values. B&C publishes 100.0 dB, 1.6 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 16.5T·m
- Fs
- 50Hz
- Le
- 0.72mH
- Re
- 3.1Ω
- Sd
- 522cm²
- Mms
- 54g
- Qes
- 0.20
- Qms
- 3.3
- Qts
- 0.19
- SPL
- 98.4dB
- Vas
- 70L
- Xmax
- 6mm
- Power
- 400W
- Impedance
- 4Ω
- Flux density
- 1.25T
- Sensitivity
- 100dB
- Low limit
- 50Hz
- Nominal power
- 400W
- Calculated sensitivity †
- 98.4dB
- High limit
- 2000Hz
- Manufacturer sensitivity
- 100dB
- Min. impedance
- 4.3Ω
- Voice coil
- 76mm
- Weight
- 3.9kg
- Diameter
- 315mm
- Depth
- 141mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Bl
- 16.5 Tm
- Fs
- 50 Hz
- Le
- 0.72 mH
- Re
- 3.1 Ω
- Sd
- 522 cm² (80.91 in²)
- Ebp
- 250 Hz
- Mms
- 54 g
- Qes
- 0.2
- Qms
- 3.25
- Qts
- 0.19
- Vas
- 70 dm³ (2.47 ft³)
- Η0
- 4.57 %
- Cone
- RCK12NDL764
- Xmax
- 6 mm
- Xvar
- 7 mm
- Depth
- 141 mm (5.55 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 3.9 kg (8.6 lb)
- Pole design
- Straight Pole
- Sensitivity
- 100 dB
- Flux density
- 1.25 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 18.5 mm (0.73 in)
- Shipping units
- 1 pcs
- Surround shape
- Double Roll
- Former material
- Glass Fibre
- Frequency range
- 50 Hz - 2000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 4.5 kg (9.92 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 315 mm (12.4 in)
- Winding material
- Aluminium
- Minimum impedance
- 4.3 Ω
- Nominal impedance
- 4 Ω
- Magnetic gap depth
- 10 mm (0.39 in)
- Voice coil diameter
- 76 mm (3 in)
- Bolt circle diameter
- 298 mm (11.73 in)
- Woofer cone treatment
- None
- Baffle cutout diameter
- 283 mm (11.14 in)
- Nominal power handling
- 400 W
- Continuous power handling
- 800 W
- Flange and gasket thickness
- 14 mm (0.55 in)
- Air volume occupied by driver
- 2.5 dm³ (0.09 ft³)
B&C’s design
From the maker, with plans to download
03
Compare
Same-size drivers, compared with the 12NDL76. Clear differences are green when better and red when worse.
This driver12NDL76
Best price
£167.22
Fs
50 Hz
Qts
0.19
Vas
70 L
BL
16.5 T·m
Xmax
6 mm
Sensitivity
98.4 dB
Power
400 W
B&C12CL76
£126.59 · 24% less, betterFs48 Hz −4%
Qts0.21 +11%, worse
Vas59 L −16%, better
BL22.4 T·m +36%, better
Xmax6 mm –
Sensitivity96.8 dB −1.6
B&C12MH32
£139.54 · 17% less, betterFs53 Hz +6%
Qts0.19 –
Vas63 L −10%, better
BL22.3 T·m +35%, better
Xmax5 mm −17%, worse
Sensitivity98.7 dB –
RCFMB12G301
£142.33 · 15% less, betterFs53 Hz +6%
Qts0.27 +42%, worse
Vas72 L –
BL17 T·m +3%
Xmax6 mm –
Sensitivity97.9 dB −0.5
Eighteen Sound12MB600
£153.64 · 8% less, betterFs46 Hz −8%
Qts0.19 –
Vas86 L +23%, worse
BL14.9 T·m −10%
Xmax4.5 mm −25%, worse
Sensitivity98.5 dB –
Eighteen Sound12MB700
£174.01 · 4% moreFs49 Hz –
Qts0.19 –
Vas101 L +44%, worse
BL17.8 T·m +8%
Xmax4.5 mm −25%, worse
Sensitivity99.8 dB +1.4
FaitalPRO12FH500
£175.71 · 5% more, worseFs45 Hz −10%, better
Qts0.22 +16%, worse
Vas80.3 L +15%, worse
BL15.5 T·m −6%
Xmax7.3 mm +21%, better
Sensitivity97.1 dB −1.3
RCFMB12N301
£183.23 · 10% more, worseFs54 Hz +8%
Qts0.24 +26%, worse
Vas71 L –
BL19 T·m +15%, better
Xmax6 mm –
Sensitivity98.4 dB –
BMS12S320
£204.98 · 23% more, worseFs45 Hz −9%
Qts0.20 +5%
Vas69.5 L –
BL23.3 T·m +41%, better
Xmax4.5 mm −25%, worse
Sensitivity96.9 dB −1.5
RCFMB12N351
£225.00 · 35% more, worseFs55 Hz +10%, worse
Qts0.20 +5%
Vas61 L −13%, better
BL22.5 T·m +36%, better
Xmax6 mm –
Sensitivity98.9 dB +0.5
Eighteen Sound12ND710
£243.61 · 46% more, worseFs52 Hz +4%
Qts0.20 +5%
Vas92 L +31%, worse
BL18 T·m +9%
Xmax5 mm −17%, worse
Sensitivity100.1 dB +1.7
Eighteen Sound12ND930
£248.59 · 49% more, worseFs50 Hz –
Qts0.21 +11%, worse
Vas70 L –
BL21.2 T·m +28%, better
Xmax6.5 mm +8%
Sensitivity98 dB –
REDCATT122NPW
£252.53 · 51% more, worseFs35 Hz −30%, better
Qts0.17 −11%, better
Vas81.9 L +17%, worse
BL27 T·m +64%, better
Xmax5.8 mm −4%
Sensitivity95.2 dB −3.2, worse
Beyma12P80ND
£376.94 · 125% more, worseFs47 Hz −6%
Qts0.19 –
Vas65 L −7%
BL23.7 T·m +44%, better
Xmax7.5 mm +25%, better
Sensitivity97.3 dB −1.1
B&C12CXN76
£382.96 · 129% more, worseFs42 Hz −16%, better
Qts0.19 –
Vas120 L +71%, worse
BL17.6 T·m +7%
Xmax6 mm –
Sensitivity98.5 dB –
B&C12HCX76
£385.07 · 130% more, worseFs42 Hz −16%, better
Qts0.19 –
Vas120 L +71%, worse
BL17.6 T·m +7%
Xmax6 mm –
Sensitivity98.5 dB –
Precision DevicesPD.1225C001
No current priceFs39 Hz −22%, better
Qts0.19 –
Vas156 L +123%, worse
BL17.5 T·m +6%
Xmax5.6 mm −7%
Sensitivity98.8 dB –
Oberton12NB400
No current priceFs44 Hz −13%, better
Qts0.18 −5%
Vas70.5 L –
BL20.3 T·m +23%, better
Xmax5.3 mm −13%, worse
Sensitivity97.1 dB −1.3
Oberton12NXL400
No current priceFs49 Hz –
Qts0.20 +7%
Vas79.2 L +13%, worse
BL20.6 T·m +25%, better
Xmax5.3 mm −13%, worse
Sensitivity98.5 dB –
Eighteen Sound12MB710
No current priceFs46 Hz −8%
Qts0.20 +5%
Vas81 L +16%, worse
BL20.5 T·m +24%, better
Xmax5 mm −17%, worse
Sensitivity98 dB –
Eighteen Sound12MB720
No current priceFs46 Hz −8%
Qts0.20 +5%
Vas81 L +16%, worse
BL20.5 T·m +24%, better
Xmax5 mm −17%, worse
Sensitivity98 dB –
Eighteen Sound12MB810
No current priceFs46 Hz −8%
Qts0.20 +5%
Vas81 L +16%, worse
BL20.5 T·m +24%, better
Xmax5 mm −17%, worse
Sensitivity98 dB –
Sica12 F 4 CP
No current priceFs46 Hz −8%
Qts0.20 +5%
Vas52 L −26%, better
BL26.0 T·m +58%, better
Xmax6 mm –
Sensitivity95.8 dB −2.6, worse
Eighteen Sound12MB777
No current priceFs49 Hz –
Qts0.19 –
Vas101 L +44%, worse
BL17.8 T·m +8%
Xmax4.5 mm −25%, worse
Sensitivity99.8 dB +1.4
LavoceCAN123.00T
No current priceFs46 Hz −8%
Qts0.22 +16%, worse
Vas91 L +30%, worse
BL18.5 T·m +12%, better
Xmax6 mm –
Sensitivity97.9 dB −0.5
LavoceCAN123.00TH
No current priceFs46 Hz −8%
Qts0.22 +16%, worse
Vas91 L +30%, worse
BL18.5 T·m +12%, better
Xmax6 mm –
Sensitivity97.9 dB −0.5
RCFCX12N351
No current priceFs58 Hz +16%, worse
Qts0.20 +5%
Vas47 L −33%, better
BL25 T·m +52%, better
Xmax6 mm –
Sensitivity98.4 dB –
No photo
PHL Audio4051
No current priceFs49 Hz –
Qts0.20 +5%
Vas85.2 L +22%, worse
BL20.9 T·m +27%, better
Xmax5 mm −17%, worse
Sensitivity98.8 dB –
Oberton12NB450
No current priceFs46 Hz −7%
Qts0.20 +7%
Vas72.6 L +4%
BL20.3 T·m +23%, better
Xmax7.8 mm +29%, better
Sensitivity97.5 dB −0.9
Eighteen Sound12ND940
No current priceFs49 Hz –
Qts0.20 +5%
Vas64.8 L −7%
BL22.2 T·m +35%, better
Xmax7.6 mm +27%, better
Sensitivity97.8 dB −0.6
PRV Audio12MB2000FT-NDY
No current priceFs55 Hz +10%, worse
Qts0.30 +58%, worse
Vas71.5 L –
BL17.7 T·m +8%
Xmax6 mm –
Sensitivity97.9 dB −0.5
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 |
|---|---|---|---|---|
Blue Aran | £169.00, the lowest price | 2 in stock | Visit shop at Blue Aran | |
Blue Aran | £169.00 | Out of stock | Visit shop at Blue Aran | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £175.16 | 3.6% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £175.16 | 3.6% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £175.16 | 3.6% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £175.16 | 3.6% above the lowest price | In stock | Visit shop at JP Leisure |
Audio Video Parts Import VAT and duty may apply | £147.87 | Special order | Visit shop at Audio Video Parts |
Best price over time
Tracked since 1 Apr
Recent changes
- 17 JulBlue Aran£127.27 → £169.00Up 33% from £127.27
- 17 JulBlue Aran£188.74 → £169.00Down 10% from £188.74
- 6 JulBlue Aran£125.03 → £188.74Up 51% from £125.03