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 16Ω
50–2000 Hz
£169.00
SteadyBlue Aran · 14 in stock · All 7 offers
- Fs
- 50Hz
- Xmax
- 7mm
- SPL
- 97dB
- Pe
- 400W
- BL
- 24.7T·m
- Vd
- 365cm³
- Qts
- 0.27
- Vas
- 69L
Published graphs
B&C 12NDL76 is a 12-inch 16 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 50 Hz, Qts 0.27, Vas 69 L, Xmax 7 mm, sensitivity 96.6 dB, plus 365 cm³ Vd and 167 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
- 0.27
- Qes
- 0.30
- Qms
- 3.8
- Vas
- 69L
- Re
- 10.2Ω
- Le
- 1.70mH
Motor and cone
- BL
- 24.7T·m
- Sd
- 522cm²
- Mms
- 56g
- Xmax
- 7mm
- Vd †
- 365cm³
- Voice coil
- 76mm
- Flux density
- 1.25T
Power and response
- Sensitivity †
- 96.6dB
- Manufacturer sensitivity
- 100dB
- Power
- 400W
- Nominal power
- 400W
- Impedance
- 16Ω
- Min. impedance
- 12.5Ω
- Range
- 50–2000Hz
- EBP †
- 167 · Leans vented
Size and mounting
- Diameter
- 315mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Depth
- 141mm
- Weight
- 3.9kg
Sensitivity shows 96.6 dB, calculated from the T/S values. B&C publishes 100.0 dB, 3.4 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 24.7T·m
- Fs
- 50Hz
- Le
- 1.70mH
- Re
- 10.2Ω
- Sd
- 522cm²
- Mms
- 56g
- Qes
- 0.30
- Qms
- 3.8
- Qts
- 0.27
- SPL
- 96.6dB
- Vas
- 69L
- Xmax
- 7mm
- Power
- 400W
- Impedance
- 16Ω
- Flux density
- 1.25T
- Sensitivity
- 100dB
- Low limit
- 50Hz
- Nominal power
- 400W
- Calculated sensitivity †
- 96.6dB
- High limit
- 2000Hz
- Manufacturer sensitivity
- 100dB
- Min. impedance
- 12.5Ω
- Voice coil
- 76mm
- Weight
- 3.9kg
- Diameter
- 315mm
- Depth
- 141mm
- Cutout
- 283mm
- Bolt circle
- 298mm
- Bl
- 24.7 Tm
- Fs
- 50 Hz
- Le
- 1.7 mH
- Re
- 10.2 Ω
- Sd
- 522 cm² (80.9 in²)
- Ebp
- 167 Hz
- Mms
- 56 g
- Qes
- 0.3
- Qms
- 3.8
- Qts
- 0.27
- Vas
- 69 dm³ (2.44 ft³)
- Η0
- 2.8 %
- Cone
- RCK12NDL7616
- Xmax
- 7 mm
- Xvar
- 7 mm
- Depth
- 141 mm (5.5 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
- 19 mm (0.75 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 (9.9 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 315 mm (12.4 in)
- Winding material
- Aluminium
- Minimum impedance
- 12.5 Ω
- Nominal impedance
- 16 Ω
- Magnetic gap depth
- 10 mm (0.4 in)
- Recommended tuning
- 65 Hz
- Voice coil diameter
- 76 mm (3 in)
- Bolt circle diameter
- 298 mm (11.7 in)
- Recommended enclosure
- 42 dm³ (1.48 ft³)
- Woofer cone treatment
- None
- Baffle cutout diameter
- 283 mm (11.1 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 (0.08 ft³)
02
Designs
Cabinets for the 12NDL76: a design and a suggested box from B&C.
All 12NDL76 designsHow we find designsB&C’s design
From the maker, with plans to download
B&C’s suggested box
From B&C’s 12NDL76 page
- Net volume
- 42L
- Tuning
- 65Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
Modelling the box in 00 Simulator…
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
0.27
Vas
69 L
BL
24.7 T·m
Xmax
7 mm
Sensitivity
96.6 dB
Power
400 W
SB AudienceROSSO-12MW300
£106.55 · 36% less, betterFs48 Hz −4%
Qts0.27 –
Vas85.9 L +24%, worse
BL17.4 T·m −30%, worse
Xmax6.7 mm −5%
Sensitivity97.3 dB +0.7
RCFMB12G301
£142.33 · 15% less, betterFs53 Hz +6%
Qts0.27 –
Vas72 L +4%
BL17 T·m −31%, worse
Xmax6 mm −14%, worse
Sensitivity97.9 dB +1.3
Beyma12WR400
£143.67 · 14% less, betterFs42 Hz −16%, better
Qts0.27 –
Vas91 L +32%, worse
BL18 T·m −27%, worse
Xmax6.3 mm −10%, worse
Sensitivity95.8 dB −0.8
Beyma12G40
£154.94 · 7% less, betterFs44 Hz −12%, better
Qts0.30 +11%, worse
Vas81 L +17%, worse
BL18.4 T·m −26%, worse
Xmax7 mm –
Sensitivity95.6 dB −1
LavoceWAN123.00
£163.28 · 2% lessFs49 Hz –
Qts0.27 –
Vas68.8 L –
BL17.9 T·m −28%, worse
Xmax6.9 mm –
Sensitivity96.6 dB –
Beyma12MCB700
£174.16 · 4% moreFs51 Hz –
Qts0.27 –
Vas59.5 L −14%, better
BL20.4 T·m −17%, worse
Xmax7 mm –
Sensitivity96.4 dB –
RCFMB12X351
£187.93 · 12% more, worseFs55 Hz +10%, worse
Qts0.26 −4%
Vas46 L −33%, better
BL22.5 T·m −9%
Xmax7 mm –
Sensitivity96.6 dB –
PRV Audio12MR2000X
£188.24 · 13% more, worseFs65 Hz +29%, worse
Qts0.28 +4%
Vas39.6 L −43%, better
BL23.2 T·m −6%
Xmax6.6 mm −6%
Sensitivity97.9 dB +1.3
Eighteen Sound12LW800
£189.95 · 14% more, worseFs52 Hz +4%
Qts0.29 +7%
Vas48 L −30%, better
BL21.3 T·m −14%, worse
Xmax6.5 mm −7%
Sensitivity95.6 dB −1
B&C12PS100
£190.15 · 14% more, worseFs44 Hz −12%, better
Qts0.27 –
Vas47 L −32%, better
BL22.5 T·m −9%
Xmax8 mm +14%, better
Sensitivity93.4 dB −3.2, worse
Beyma12MC700ND
£217.96 · 30% more, worseFs51 Hz –
Qts0.24 −11%, better
Vas58 L −16%, better
BL21.6 T·m −13%, worse
Xmax7 mm –
Sensitivity96.7 dB –
Eighteen Sound12ND830
£243.61 · 46% more, worseFs55 Hz +10%, worse
Qts0.28 +4%
Vas72 L +4%
BL17.6 T·m −29%, worse
Xmax6.5 mm −7%
Sensitivity98 dB +1.4
Beyma12P1000ND
£305.27 · 83% more, worseFs47 Hz −6%
Qts0.26 −4%
Vas49 L −29%, better
BL23.5 T·m −5%
Xmax8 mm +14%, better
Sensitivity94.8 dB −1.8
BMS12CN680
£365.51 · 119% more, worseFs46 Hz −8%
Qts0.26 −4%
Vas58 L −16%, better
BL20.6 T·m −17%, worse
Xmax5.5 mm −21%, worse
Sensitivity95.2 dB −1.4
Sica12 S 4 PL
£407.39 · 144% more, worseFs40 Hz −19%, better
Qts0.25 −7%
Vas57 L −17%, better
BL23.5 T·m −5%
Xmax7.5 mm +7%
Sensitivity93.6 dB −3, worse
Eighteen Sound12NCX910
£436.54 · 161% more, worseFs57 Hz +14%, worse
Qts0.30 +11%, worse
Vas58 L −16%, better
BL18.1 T·m −27%, worse
Xmax6.9 mm –
Sensitivity97.4 dB +0.8
Eighteen Sound12NCX910N
£478.98 · 186% more, worseFs57 Hz +14%, worse
Qts0.30 +11%, worse
Vas58 L −16%, better
BL18.1 T·m −27%, worse
Xmax6.9 mm –
Sensitivity97.4 dB +0.8
No photo
PHL Audio4031
No current priceFs44 Hz −12%, better
Qts0.27 –
Vas70 L –
BL20.5 T·m −17%, worse
Xmax7.5 mm +7%
Sensitivity95.2 dB −1.4
No photo
PHL Audio4031NDU
No current priceFs44 Hz −12%, better
Qts0.27 –
Vas70 L –
BL20.5 T·m −17%, worse
Xmax7.5 mm +7%
Sensitivity95.2 dB −1.4
LavoceNBASS12-30
No current priceFs46 Hz −8%
Qts0.26 −4%
Vas68.6 L –
BL19.5 T·m −21%, worse
Xmax6.6 mm −6%
Sensitivity96 dB −0.6
Sica12 K 4 PL
No current priceFs49 Hz −3%
Qts0.25 −7%
Vas47.4 L −31%, better
BL22.9 T·m −7%
Xmax7 mm –
Sensitivity95 dB −1.6
Oberton12MB35
No current priceFs51 Hz –
Qts0.27 –
Vas50.1 L −27%, better
BL20.5 T·m −17%, worse
Xmax6.8 mm −4%
Sensitivity96 dB −0.6
BMS12N804
No current priceFs39 Hz −22%, better
Qts0.29 +7%
Vas71 L –
BL20.4 T·m −17%, worse
Xmax8 mm +14%, better
Sensitivity93.4 dB −3.2, worse
Oberton12B401
No current priceFs47 Hz −7%
Qts0.24 −9%
Vas69.6 L –
BL19.9 T·m −19%, worse
Xmax6.8 mm −4%
Sensitivity96.5 dB –
RCFLF12P903
No current priceFs47 Hz −6%
Qts0.23 −15%, better
Vas65 L −6%
BL22.1 T·m −10%, worse
Xmax7 mm –
Sensitivity96.5 dB –
Eighteen Sound12NCX910BE
No current priceFs57 Hz +14%, worse
Qts0.30 +11%, worse
Vas58 L −16%, better
BL18.1 T·m −27%, worse
Xmax6.9 mm –
Sensitivity97.4 dB +0.8
No photo
PHL Audio4071-1
No current priceFs47 Hz −6%
Qts0.24 −11%, better
Vas57.8 L −16%, better
BL20.6 T·m −17%, worse
Xmax6.5 mm −7%
Sensitivity95.7 dB −0.9
Sica12 PFS 4
No current priceFs39 Hz −22%, better
Qts0.26 −4%
Vas55.6 L −19%, better
BL23.9 T·m −3%
Xmax9 mm +29%, better
Sensitivity92.9 dB −3.7, worse
No photo
PHL Audio4310NDU
No current priceFs43 Hz −14%, better
Qts0.27 –
Vas56.7 L −18%, better
BL22 T·m −11%, worse
Xmax10 mm +43%, better
Sensitivity94.1 dB −2.5, worse
CelestionTSQ1230
No current priceFs55 Hz +10%, worse
Qts0.30 +12%, worse
Vas45.2 L −34%, better
BL20.5 T·m −17%, worse
Xmax6.8 mm −4%
Sensitivity95.8 dB −0.8
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 | 14 in 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 | £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 | |
Parts Express Import VAT and duty may apply | £212.05 | 26% above the lowest price | 1 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 17 JulBlue Aran£174.00 → £169.00Down 2.9% from £174.00
- 23 JunJP Leisure£168.00 → £175.16Up 4.3% from £168.00
- 5 JunBlue Aran£159.00 → £174.00Up 9.4% from £159.00