- Net volume
- 14L
- Tuning
- 65Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
8-inch LF driver · 8NDL series · 51 mm voice coil · 200 W
B&C 8NDL51 16Ω
70–3000 Hz
£103.00
6.2%Blue Aran · 18 in stock · All 5 offers
- Fs
- 70Hz
- Xmax
- 7mm
- SPL
- 92dB
- Pe
- 200W
- BL
- 15.2T·m
- Vd
- 154cm³
- Qts
- 0.47
- Vas
- 13L
Published graphs
B&C 8NDL51 is an 8-inch 16 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 70 Hz, Qts 0.47, Vas 13.4 L, Xmax 7 mm, sensitivity 91.6 dB, plus 154 cm³ Vd and 137 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 £100.16.
The published T/S values agree with each other
Thiele/Small
- Fs
- 70Hz
- Qts
- 0.47
- Qes
- 0.51
- Qms
- 5.9
- Vas
- 13.4L
- Re
- 10.6Ω
- Le
- 0.60mH
Motor and cone
- BL
- 15.2T·m
- Sd
- 220cm²
- Mms
- 26g
- Xmax
- 7mm
- Vd †
- 154cm³
- Voice coil
- 51mm
- Flux density
- 1.05T
Power and response
- Sensitivity †
- 91.6dB
- Manufacturer sensitivity
- 94dB
- Power
- 200W
- Nominal power
- 200W
- Impedance
- 16Ω
- Min. impedance
- 12Ω
- Range
- 70–3000Hz
- EBP †
- 137 · Leans vented
Size and mounting
- Diameter
- 225mm
- Cutout
- 187mm
- Bolt circle
- 210mm
- Depth
- 90mm
- Weight
- 1.9kg
Sensitivity shows 91.6 dB, calculated from the T/S values. B&C publishes 94.0 dB, 2.4 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 15.2T·m
- Fs
- 70Hz
- Le
- 0.60mH
- Re
- 10.6Ω
- Sd
- 220cm²
- Mms
- 26g
- Qes
- 0.51
- Qms
- 5.9
- Qts
- 0.47
- SPL
- 91.6dB
- Vas
- 13.4L
- Xmax
- 7mm
- Power
- 200W
- Impedance
- 16Ω
- Flux density
- 1.05T
- Sensitivity
- 94dB
- Low limit
- 70Hz
- Nominal power
- 200W
- Calculated sensitivity †
- 91.6dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 94dB
- Min. impedance
- 12Ω
- Voice coil
- 51mm
- Weight
- 1.9kg
- Diameter
- 225mm
- Depth
- 90mm
- Cutout
- 187mm
- Bolt circle
- 210mm
- Bl
- 15.2 Tm
- Fs
- 70 Hz
- Le
- 0.6 mH
- Re
- 10.6 Ω
- Sd
- 220 cm² (34.1 in²)
- Ebp
- 137 Hz
- Mms
- 26 g
- Qes
- 0.51
- Qms
- 5.88
- Qts
- 0.47
- Vas
- 13.4 dm³ (0.47 ft³)
- Η0
- 0.9 %
- Cone
- RCK008NDL5116
- Xmax
- 7 mm
- Xvar
- 7 mm
- Depth
- 90 mm (3.5 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 1.85 kg (4.08 lb)
- Pole design
- Straight Pole
- Sensitivity
- 94 dB
- Flux density
- 1.05 T
- Shipping box
- 255x255x150 mm (10.04x10.04x5.91 in)
- Winding depth
- 17 mm (0.65 in)
- Shipping units
- 1 pcs
- Surround shape
- Double Roll
- Former material
- Glass Fibre
- Frequency range
- 70 Hz - 3000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 2.3 kg (5.07 lb)
- Nominal diameter
- 200 mm (8 in)
- Overall diameter
- 225 mm (8.8 in)
- Winding material
- Copper
- Minimum impedance
- 12 Ω
- Nominal impedance
- 16 Ω
- Magnetic gap depth
- 8 mm (0.31 in)
- Recommended tuning
- 65 Hz
- Voice coil diameter
- 51 mm (2 in)
- Bolt circle diameter
- 210 mm (8.3 in)
- Recommended enclosure
- 14 dm³ (0.49 ft³)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Baffle cutout diameter
- 187 mm (7.4 in)
- Nominal power handling
- 200 W
- Continuous power handling
- 400 W
- Flange and gasket thickness
- 11 mm (0.4 in)
- Air volume occupied by driver
- 1.1 dm³ (0.04 ft³)
B&C’s suggested box
From B&C’s 8NDL51 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 8NDL51. Clear differences are green when better and red when worse.
This driver8NDL51
Best price
£100.16
Fs
70 Hz
Qts
0.47
Vas
13.4 L
BL
15.2 T·m
Xmax
7 mm
Sensitivity
91.6 dB
Power
200 W
FaitalPRO8FE300
£43.52 · 57% less, betterFs70 Hz –
Qts0.44 −6%
Vas15.7 L +17%, worse
BL11.3 T·m −26%, worse
Xmax5.5 mm −21%, worse
Sensitivity92.7 dB +1.1
SB AudienceBIANCO-8MW250
£49.00 · 51% less, betterFs74 Hz +6%
Qts0.40 −15%, better
Vas13.8 L –
BL11 T·m −28%, worse
Xmax6.5 mm −7%
Sensitivity93 dB +1.4
PeerlessGBS-200F35CP02-04
£54.66 · 45% less, betterFs42 Hz −40%, better
Qts0.44 −6%
Vas13.9 L +4%
BL11.7 T·m −23%, worse
Xmax7.8 mm +11%, better
Sensitivity85.4 dB −6.2, worse
CelestionTF0818
£55.00 · 45% less, betterFs100 Hz +43%, worse
Qts0.43 −9%
Vas9.4 L −30%, better
BL12.9 T·m −15%, worse
Xmax5 mm −29%, worse
Sensitivity94.9 dB +3.3, better
LavoceWAF082.00
£71.42 · 29% less, betterFs78 Hz +11%, worse
Qts0.37 −21%, better
Vas11.9 L −11%, better
BL12.5 T·m −18%, worse
Xmax6.3 mm −10%, worse
Sensitivity93.4 dB +1.8
Beyma8MI100
£73.79 · 26% less, betterFs90 Hz +29%, worse
Qts0.45 −4%
Vas12 L −10%, better
BL11.5 T·m −24%, worse
Xmax3 mm −57%, worse
Sensitivity94.6 dB +3, better
FaitalPRO8PR320
£75.00 · 25% less, betterFs65 Hz −7%
Qts0.41 −13%, better
Vas13.1 L –
BL12.9 T·m −15%, worse
Xmax7.3 mm +5%
Sensitivity91.3 dB –
CIAREPWA8.50
£78.09 · 22% less, betterFs74 Hz +6%
Qts0.38 −19%, better
Vas12 L −10%, better
BL12.7 T·m −16%, worse
Xmax6.8 mm –
Sensitivity92.8 dB +1.2
LavoceSSF082.00L
£82.10 · 18% less, betterFs50 Hz −29%, better
Qts0.44 −6%
Vas10.1 L −24%, better
BL15.7 T·m –
Xmax9.2 mm +31%, better
Sensitivity86.4 dB −5.2, worse
B&C8CL51
£85.73 · 14% less, betterFs83 Hz +19%, worse
Qts0.51 +9%
Vas9.5 L −29%, better
BL16.1 T·m +6%
Xmax6 mm −14%, worse
Sensitivity92.1 dB +0.5
CelestionFTR08-2011D
£99.00 · 1% lessFs86 Hz +23%, worse
Qts0.44 −7%
Vas9.0 L −33%, better
BL12.7 T·m −16%, worse
Xmax5.5 mm −21%, worse
Sensitivity92.3 dB +0.7
FaitalPRO8PR200
£99.14 · 1% lessFs60 Hz −14%, better
Qts0.46 –
Vas16.1 L +20%, worse
BL15.5 T·m –
Xmax8.7 mm +24%, better
Sensitivity90.5 dB −1.1
CelestionNTR08-2011D
£125.00 · 25% more, worseFs85 Hz +21%, worse
Qts0.44 −7%
Vas10.3 L −23%, better
BL12.0 T·m −21%, worse
Xmax6 mm −14%, worse
Sensitivity92.7 dB +1.1
SB AudienceNERO-8MWN400D
£152.56 · 52% more, worseFs63 Hz −10%, better
Qts0.38 −19%, better
Vas13.9 L +4%
BL11.9 T·m −22%, worse
Xmax6.7 mm −4%
Sensitivity91.3 dB –
WavecorSW182BD04
£163.40 · 63% more, worseFs37 Hz −47%, better
Qts0.49 +4%
Vas12.7 L −5%
BL10.2 T·m −33%, worse
Xmax7 mm –
Sensitivity83.1 dB −8.5, worse
WavecorSW182BD03
£163.40 · 63% more, worseFs35 Hz −50%, better
Qts0.44 −6%
Vas12.7 L −5%
BL7.6 T·m −50%, worse
Xmax7 mm –
Sensitivity82.9 dB −8.7, worse
FaitalPRO8HX210
No current priceFs83 Hz +19%, worse
Qts0.44 −6%
Vas10.1 L −25%, better
BL11.9 T·m −22%, worse
Xmax6.5 mm −7%
Sensitivity92.7 dB +1.1
Tang BandW8-670Q
No current priceFs38 Hz −46%, better
Qts0.46 –
Vas24.9 L +86%, worse
BL12.3 T·m −19%, worse
Xmax7 mm –
Sensitivity86.3 dB −5.3, worse
LavoceNBASS08-20
No current priceFs55 Hz −21%, better
Qts0.48 –
Vas18.4 L +37%, worse
BL11.3 T·m −25%, worse
Xmax6.5 mm −7%
Sensitivity89.9 dB −1.7
Dayton AudioSS8-22
No current priceFs38 Hz −46%, better
Qts0.45 −4%
Vas9.7 L −28%, better
BL14.6 T·m −4%
Xmax17 mm +143%, better
Sensitivity82.3 dB −9.3, worse
CIARENDK8
No current priceFs57 Hz −19%, better
Qts0.40 −15%, better
Vas12.9 L −4%
BL14.4 T·m −5%
Xmax8.5 mm +21%, better
Sensitivity89.4 dB −2.2, worse
P.Audio8NT-65MB
No current priceFs75 Hz +7%
Qts0.46 –
Vas7.7 L −43%, better
BL15.4 T·m –
Xmax3.8 mm −46%, worse
Sensitivity90.2 dB −1.4
BMS8S219
No current priceFs82 Hz +17%, worse
Qts0.41 −13%, better
Vas9.7 L −28%, better
BL13.3 T·m −12%, worse
Xmax6.3 mm −10%, worse
Sensitivity92.8 dB +1.2
FaitalPRO8PR155
No current priceFs85 Hz +21%, worse
Qts0.46 –
Vas10.6 L −21%, better
BL18.1 T·m +19%, better
Xmax3.6 mm −49%, worse
Sensitivity93.3 dB +1.7
MonacorFTR08-2011D/8
No current priceFs86 Hz +23%, worse
Qts0.43 −9%
Vas9 L −33%, better
BL12.7 T·m −16%, worse
Xmax5.5 mm −21%, worse
Sensitivity92.6 dB +1
MonacorSP-8/150PA
No current priceFs88 Hz +26%, worse
Qts0.43 −9%
Vas12 L −10%, better
BL12.6 T·m −17%, worse
Xmax1.3 mm −82%, worse
Sensitivity94.3 dB +2.7, better
No photo
PHL Audio2560-3
No current priceFs79 Hz +13%, worse
Qts0.45 −4%
Vas10.7 L −20%, better
BL10.4 T·m −32%, worse
Xmax5.5 mm −21%, worse
Sensitivity92.3 dB +0.7
LavoceCPF082.00K
No current priceFs93 Hz +33%, worse
Qts0.46 –
Vas11.1 L −17%, better
BL10.9 T·m −28%, worse
Xmax3.3 mm −53%, worse
Sensitivity94.4 dB +2.8, better
BMS8N519
No current priceFs75 Hz +7%
Qts0.37 −21%, better
Vas10.9 L −19%, better
BL13.8 T·m −9%
Xmax6.3 mm −10%, worse
Sensitivity92.5 dB +0.9
MonacorTF0818/8
No current priceFs94 Hz +34%, worse
Qts0.43 −9%
Vas9.4 L −30%, better
BL12.9 T·m −15%, worse
Xmax5 mm −29%, worse
Sensitivity94 dB +2.4, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Blue Aran 5-7 weeks | £103.00, the lowest price | 18 in stock | Visit shop at Blue Aran | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £109.84 | 6.6% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £109.84 | 6.6% above the lowest price | In stock | Visit shop at JP Leisure |
Best price over time
Tracked since 1 Apr
Recent changes
- 17 JulBlue Aran£105.00 → £103.00Down 1.9% from £105.00
- 23 JunJP Leisure£104.33 → £109.84Up 5.3% from £104.33
- 5 JunBlue Aran£99.00 → £105.00Up 6.1% from £99.00