B&C design
U12
12"/1.4" 1400w Utility Box (active or passive)
- Drivers
- 1 × 12NDL88, 8 Ω
- Power
- 1,400 W
Designed with the 8 Ω version.
12-inch LF driver · 12NDL series · 88 mm voice coil · 700 W
B&C 12NDL88 16Ω
50–3000 Hz
£219.44
SteadyJP Leisure · In stock · All 8 offers
- Fs
- 50Hz
- Xmax
- 8mm
- SPL
- 95dB
- Pe
- 700W
- BL
- 25.3T·m
- Vd
- 418cm³
- Qts
- 0.37
- Vas
- 55L
Published graphs
B&C 12NDL88 is a 12-inch 16 ohm LF driver rated at 700 W RMS. The validated T/S data includes Fs 50 Hz, Qts 0.37, Vas 55 L, Xmax 8 mm, sensitivity 94.6 dB, plus 418 cm³ Vd and 132 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 £215.61.
The published T/S values agree with each other
Thiele/Small
- Fs
- 50Hz
- Qts
- 0.37
- Qes
- 0.38
- Qms
- 8.3
- Vas
- 55L
- Re
- 11.1Ω
- Le
- 2.10mH
Motor and cone
- BL
- 25.3T·m
- Sd
- 522cm²
- Mms
- 70g
- Xmax
- 8mm
- Vd †
- 418cm³
- Voice coil
- 88mm
- Flux density
- 1.05T
Power and response
- Sensitivity †
- 94.6dB
- Manufacturer sensitivity
- 97dB
- Power
- 700W
- Nominal power
- 700W
- Impedance
- 16Ω
- Min. impedance
- 12.8Ω
- Range
- 50–3000Hz
- EBP †
- 132 · Leans vented
Size and mounting
- Diameter
- 315mm
- Cutout
- 282mm
- Bolt circle
- 298mm
- Depth
- 140mm
- Weight
- 5.0kg
Sensitivity shows 94.6 dB, calculated from the T/S values. B&C publishes 97.0 dB, 2.4 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 25.3T·m
- Fs
- 50Hz
- Le
- 2.10mH
- Re
- 11.1Ω
- Sd
- 522cm²
- Mms
- 70g
- Qes
- 0.38
- Qms
- 8.3
- Qts
- 0.37
- SPL
- 94.6dB
- Vas
- 55L
- Xmax
- 8mm
- Power
- 700W
- Impedance
- 16Ω
- Flux density
- 1.05T
- Sensitivity
- 97dB
- Low limit
- 50Hz
- Nominal power
- 700W
- Calculated sensitivity †
- 94.6dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 97dB
- Min. impedance
- 12.8Ω
- Voice coil
- 88mm
- Weight
- 5.0kg
- Diameter
- 315mm
- Depth
- 140mm
- Cutout
- 282mm
- Bolt circle
- 298mm
- Bl
- 25.3 Tm
- Fs
- 50 Hz
- Le
- 2.1 mH
- Re
- 11.1 Ω
- Sd
- 522 cm² (80.91 in²)
- Ebp
- 132 Hz
- Mms
- 70 g
- Qes
- 0.38
- Qms
- 8.3
- Qts
- 0.37
- Vas
- 55 dm³ (1.94 ft³)
- Η0
- 1.8 %
- Cone
- RCK12NDL8816
- Xmax
- 8 mm
- Xvar
- 10 mm
- Depth
- 140 mm (5.51 in)
- Spider
- Double Silicone
- Cone shape
- Exponential
- Net weight
- 4.95 kg (10.91 lb)
- Pole design
- T-Pole
- Sensitivity
- 97 dB
- Flux density
- 1.05 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 21 mm (0.83 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 50 Hz - 3000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 5.85 kg (12.9 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 315 mm (12.4 in)
- Winding material
- Aluminium
- Minimum impedance
- 12.8 Ω
- Nominal impedance
- 16 Ω
- Magnetic gap depth
- 10 mm (0.39 in)
- Recommended tuning
- 65 Hz
- Voice coil diameter
- 88 mm (3.5 in)
- Bolt circle diameter
- 298 mm (11.73 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
- 700 W
- Continuous power handling
- 1400 W
- Flange and gasket thickness
- 13 mm (0.51 in)
- Air volume occupied by driver
- 2.5 dm³ (0.08 ft³)
02
Designs
Cabinets for the 12NDL88: a design and a suggested box from B&C, and plans builders have published.
All 12NDL88 designsHow we find designsB&C’s design
From the maker, with plans to download
B&C’s suggested box
From B&C’s 12NDL88 page
- Net volume
- 40L
- 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…
Plans from builders
Links to published plans that name this driver
A builder quotes it from the plans
03
Compare
Same-size drivers, compared with the 12NDL88. Clear differences are green when better and red when worse.
This driver12NDL88
Best price
£215.61
Fs
50 Hz
Qts
0.37
Vas
55 L
BL
25.3 T·m
Xmax
8 mm
Sensitivity
94.6 dB
Power
700 W
Beyma12MCS500
£135.89 · 37% less, betterFs57 Hz +14%, worse
Qts0.36 –
Vas57 L +4%
BL17.6 T·m −30%, worse
Xmax8 mm –
Sensitivity96.5 dB +1.9
B&C12PLB100
£143.50 · 33% less, betterFs50 Hz –
Qts0.37 –
Vas47 L −15%, better
BL18.4 T·m −27%, worse
Xmax9 mm +13%, better
Sensitivity93.9 dB −0.7
CelestionCF1230BMB
£145.00 · 33% less, betterFs43 Hz −13%, better
Qts0.38 –
Vas60.7 L +10%, worse
BL18.4 T·m −27%, worse
Xmax7 mm −13%, worse
Sensitivity92.8 dB −1.8
Beyma12MC500
£152.19 · 29% less, betterFs57 Hz +14%, worse
Qts0.34 −8%
Vas57 L +4%
BL18.3 T·m −28%, worse
Xmax8 mm –
Sensitivity96.8 dB +2.2, better
B&C12FW88
£163.69 · 24% less, betterFs53 Hz +6%
Qts0.33 −11%, better
Vas45.7 L −17%, better
BL19.5 T·m −23%, worse
Xmax8 mm –
Sensitivity94.9 dB –
EminenceOMEGA PRO-12-2KW-8
£173.24 · 20% less, betterFs48 Hz −4%
Qts0.39 +5%
Vas49.5 L −10%
BL20.4 T·m −19%, worse
Xmax7.1 mm −11%, worse
Sensitivity93.4 dB −1.2
Eighteen Sound12W750
£174.69 · 19% less, betterFs55 Hz +10%, worse
Qts0.33 −11%, better
Vas61 L +11%, worse
BL23.5 T·m −7%
Xmax8 mm –
Sensitivity96.7 dB +2.1, better
FaitalPRO12FH500
£177.47 · 18% less, betterFs48 Hz −4%
Qts0.37 –
Vas77.4 L +41%, worse
BL23.8 T·m −6%
Xmax7.3 mm −9%
Sensitivity95.6 dB +1
Eighteen Sound12W700
£179.00 · 17% less, betterFs58 Hz +16%, worse
Qts0.36 –
Vas55 L –
BL17.7 T·m −30%, worse
Xmax6.5 mm −19%, worse
Sensitivity96.7 dB +2.1, better
FaitalPRO12RS550
£179.10 · 17% less, betterFs42 Hz −16%, better
Qts0.37 –
Vas45.4 L −17%, better
BL20.5 T·m −19%, worse
Xmax9.3 mm +16%, better
Sensitivity91.4 dB −3.2, worse
SB AudienceNERO-12MWN700D
£179.95 · 17% less, betterFs53 Hz +5%
Qts0.38 –
Vas52.5 L −5%
BL17.9 T·m −29%, worse
Xmax7.3 mm −9%
Sensitivity94.9 dB –
Beyma12LX60V2
£184.93 · 14% less, betterFs49 Hz –
Qts0.38 –
Vas43 L −22%, better
BL20 T·m −21%, worse
Xmax9 mm +13%, better
Sensitivity93 dB −1.6
FaitalPRO12HP1010
£191.59 · 11% less, betterFs45 Hz −10%, better
Qts0.34 −8%
Vas56.5 L –
BL19.8 T·m −22%, worse
Xmax9.3 mm +16%, better
Sensitivity93.7 dB −0.9
CIARE12.00SW
£203.33 · 6% less, betterFs30 Hz −40%, better
Qts0.34 −8%
Vas59 L +7%
BL25.3 T·m –
Xmax14 mm +75%, better
Sensitivity88.5 dB −6.1, worse
PRV Audio12MR2000-NDY
£210.84 · 2% lessFs54 Hz +9%
Qts0.34 −8%
Vas48.2 L −12%, better
BL22.8 T·m −10%, worse
Xmax6.2 mm −23%, worse
Sensitivity95.5 dB +0.9
Precision DevicesPD.124NR1
£221.00 · 2% moreFs58 Hz +16%, worse
Qts0.35 −5%
Vas49 L −11%, better
BL19.2 T·m −24%, worse
Xmax8.5 mm +6%
Sensitivity96.2 dB +1.6
B&C12FG100
£227.46 · 5% more, worseFs34 Hz −32%, better
Qts0.36 –
Vas49 L −11%, better
BL21.4 T·m −15%, worse
Xmax10.3 mm +29%, better
Sensitivity89 dB −5.6, worse
Eighteen Sound12NW530
£228.40 · 6% more, worseFs55 Hz +10%, worse
Qts0.37 –
Vas36 L −35%, better
BL19.7 T·m −22%, worse
Xmax8 mm –
Sensitivity94 dB −0.6
Eighteen Sound12NW350
£276.22 · 28% more, worseFs54 Hz +8%
Qts0.34 −8%
Vas46 L −16%, better
BL19.2 T·m −24%, worse
Xmax8.3 mm +4%
Sensitivity95.2 dB +0.6
Dayton AudioRSS315HO-44
£280.07 · 30% more, worseFs22 Hz −57%, better
Qts0.37 –
Vas61.3 L +11%, worse
BL26.5 T·m +5%
Xmax14 mm +75%, better
Sensitivity83.7 dB −10.9, worse
Dayton AudioSS12-22
£297.05 · 38% more, worseFs27 Hz −46%, better
Qts0.35 −5%
Vas49.4 L −10%, better
BL24.3 T·m −4%
Xmax23 mm +188%, better
Sensitivity86 dB −8.6, worse
Eighteen Sound12NTLS3500
£330.02 · 53% more, worseFs41 Hz −18%, better
Qts0.34 −8%
Vas63 L +15%, worse
BL14.5 T·m −43%, worse
Xmax7.9 mm –
Sensitivity92.8 dB −1.8
FaitalPRO12HX240
£330.19 · 53% more, worseFs56 Hz +12%, worse
Qts0.37 –
Vas61.1 L +11%, worse
BL16 T·m −37%, worse
Xmax7.4 mm −8%
Sensitivity96.5 dB +1.9
FaitalPRO12HX500
£392.16 · 82% more, worseFs55 Hz +10%, worse
Qts0.37 –
Vas57.8 L +5%
BL17.4 T·m −31%, worse
Xmax9.3 mm +16%, better
Sensitivity95.9 dB +1.3
PeerlessNCP-1230R01-08
No current priceFs63 Hz +26%, worse
Qts0.37 –
Vas46.3 L −16%, better
BL18.1 T·m −28%, worse
Xmax7.9 mm –
Sensitivity96.7 dB +2.1, better
FaitalPRO12FH530
No current priceFs45 Hz −10%, better
Qts0.39 +5%
Vas75.6 L +37%, worse
BL24.1 T·m −5%
Xmax7.5 mm −6%
Sensitivity94.3 dB –
No photo
PHL Audio4021
No current priceFs35 Hz −30%, better
Qts0.35 −5%
Vas70 L +27%, worse
BL20.5 T·m −19%, worse
Xmax7.5 mm −6%
Sensitivity91.2 dB −3.4, worse
Oberton12NMB35
No current priceFs54 Hz +9%
Qts0.36 –
Vas54.3 L –
BL17 T·m −33%, worse
Xmax6.8 mm −16%, worse
Sensitivity95.7 dB +1.1
Eighteen Sound12LW801
No current priceFs54 Hz +8%
Qts0.33 −11%, better
Vas41 L −25%, better
BL20.3 T·m −20%, worse
Xmax8 mm –
Sensitivity94.8 dB –
PRV Audio12W2000
No current priceFs53 Hz +7%
Qts0.37 –
Vas38.7 L −30%, better
BL22.6 T·m −10%, worse
Xmax10.3 mm +28%, better
Sensitivity93.9 dB −0.7
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 |
|---|---|---|---|---|
JP Leisure | £219.44, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £219.44 | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £219.44 | In stock | Visit shop at JP Leisure | |
JP Leisure | £219.44 | In stock | Visit shop at JP Leisure | |
Blue Aran | £221.00 | 0.7% above the lowest price | 8 in stock | Visit shop at Blue Aran |
Blue Aran | £221.00 | 0.7% above the lowest price | 10 in stock | Visit shop at Blue Aran |
Best price over time
Tracked since 1 Apr
Recent changes
- 17 JulBlue Aran£240.12 → £221.00Down 8.0% from £240.12
- 23 JunJP Leisure£208.24 → £219.44Up 5.4% from £208.24
- 23 JunBlue Aran£240.34 → £240.12Down 0.1% from £240.34