B&C design · archived
F081AN
8"/1" 400W Full Range Enclosure - 8" Neo Woofer + 1" HF Driver on 90°x60° Hyperbolic cosine flare Horn
- Drivers
- 8MDN51, 8 Ω
- Power
- 400 W
8-inch LF driver · 8MDN series · 51 mm voice coil · 200 W
B&C 8MDN51 8Ω
70–4000 Hz
£136.46
SteadyJP Leisure · In stock · All 5 offers
- Fs
- 70Hz
- Xmax
- 6mm
- SPL
- 96dB
- Pe
- 200W
- BL
- 15.3T·m
- Vd
- 132cm³
- Qts
- 0.20
- Vas
- 16L
Published graphs
B&C 8MDN51 is an 8-inch 8 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 70 Hz, Qts 0.20, Vas 16 L, Xmax 6 mm, sensitivity 96.2 dB, plus 132 cm³ Vd and 333 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 £136.46.
The published T/S values agree with each other
Thiele/Small
- Fs
- 70Hz
- Qts
- 0.20
- Qes
- 0.21
- Qms
- 3.7
- Vas
- 16L
- Re
- 5.1Ω
- Le
- 0.80mH
Motor and cone
- BL
- 15.3T·m
- Sd
- 220cm²
- Mms
- 23g
- Xmax
- 6mm
- Vd †
- 132cm³
- Voice coil
- 51mm
- Flux density
- 1.45T
Power and response
- Sensitivity †
- 96.2dB
- Manufacturer sensitivity
- 97dB
- Power
- 200W
- Nominal power
- 200W
- Impedance
- 8Ω
- Min. impedance
- 7.7Ω
- Range
- 70–4000Hz
- EBP †
- 333 · Leans vented
Size and mounting
- Diameter
- 225mm
- Cutout
- 187mm
- Bolt circle
- 210mm
- Depth
- 95mm
- Weight
- 2.6kg
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 15.3T·m
- Fs
- 70Hz
- Le
- 0.80mH
- Re
- 5.1Ω
- Sd
- 220cm²
- Mms
- 23g
- Qes
- 0.21
- Qms
- 3.7
- Qts
- 0.20
- SPL
- 96.2dB
- Vas
- 16L
- Xmax
- 6mm
- Power
- 200W
- Impedance
- 8Ω
- Flux density
- 1.45T
- Sensitivity
- 97dB
- Low limit
- 70Hz
- Nominal power
- 200W
- Calculated sensitivity †
- 96.2dB
- High limit
- 4000Hz
- Manufacturer sensitivity
- 97dB
- Min. impedance
- 7.7Ω
- Voice coil
- 51mm
- Weight
- 2.6kg
- Diameter
- 225mm
- Depth
- 95mm
- Cutout
- 187mm
- Bolt circle
- 210mm
- Bl
- 15.3 Tm
- Fs
- 70 Hz
- Le
- 0.8 mH
- Re
- 5.1 Ω
- Sd
- 220 cm² (34.1 in²)
- Ebp
- 333 Hz
- Mms
- 23 g
- Qes
- 0.21
- Qms
- 3.7
- Qts
- 0.2
- Vas
- 16 dm³ (0.6 ft³)
- Η0
- 2.4 %
- Cone
- RCK008MDN518
- Xmax
- 6 mm
- Xvar
- 6 mm
- Depth
- 95 mm (3.74 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 2.6 kg (5.73 lb)
- Pole design
- T-Pole
- Sensitivity
- 97 dB
- Flux density
- 1.45 T
- Shipping box
- 255x255x150 mm (10.04x10.04x5.91 in)
- Winding depth
- 16 mm (0.62 in)
- Shipping units
- 1 pcs
- Surround shape
- Double Roll
- Former material
- Kapton
- Frequency range
- 70 Hz - 4000 Hz
- Magnet material
- Neodymium Ring
- Shipping weight
- 3.05 kg (6.72 lb)
- Nominal diameter
- 200 mm (8 in)
- Overall diameter
- 225 mm (8.8 in)
- Winding material
- Aluminium
- Minimum impedance
- 7.7 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 8 mm (0.31 in)
- Voice coil diameter
- 51 mm (2 in)
- Bolt circle diameter
- 210 mm (8.3 in)
- Woofer cone treatment
- WP Waterproof Front Side
- 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 design
From the maker, with plans to download
03
Compare
Same-size drivers, compared with the 8MDN51. Clear differences are green when better and red when worse.
This driver8MDN51
Best price
£136.46
Fs
70 Hz
Qts
0.20
Vas
16 L
BL
15.3 T·m
Xmax
6 mm
Sensitivity
96.2 dB
Power
200 W
LavoceMAF082.00
£75.38 · 45% less, betterFs85 Hz +21%, worse
Qts0.20 –
Vas11.3 L −29%, better
BL17.2 T·m +12%, better
Xmax2.6 mm −57%, worse
Sensitivity97 dB +0.8
Beyma8WRS300
£75.85 · 44% less, betterFs65 Hz −7%
Qts0.28 +40%, worse
Vas15 L −6%
BL15.2 T·m –
Xmax6 mm –
Sensitivity93.4 dB −2.8, worse
Beyma8WR300
£91.09 · 33% less, betterFs65 Hz −7%
Qts0.27 +35%, worse
Vas15 L −6%
BL15.5 T·m –
Xmax6 mm –
Sensitivity93.6 dB −2.6, worse
B&C8PE21
£93.17 · 32% less, betterFs87 Hz +24%, worse
Qts0.19 −5%
Vas13 L −19%, better
BL16.6 T·m +8%
Xmax2.5 mm −58%, worse
Sensitivity98.3 dB +2.1, better
B&C8FG64
£106.72 · 22% less, betterFs51 Hz −27%, better
Qts0.31 +55%, worse
Vas15 L −6%
BL15.8 T·m +3%
Xmax7 mm +17%, better
Sensitivity90 dB −6.2, worse
B&C8FW51
£116.03 · 15% less, betterFs74 Hz +6%
Qts0.21 +5%
Vas12 L −25%, better
BL17.7 T·m +16%, better
Xmax6 mm –
Sensitivity95.7 dB −0.5
B&C8NW51
£120.85 · 11% less, betterFs74 Hz +6%
Qts0.17 −15%, better
Vas11 L −31%, better
BL18.9 T·m +24%, better
Xmax6 mm –
Sensitivity95.7 dB −0.5
Eighteen Sound8NW650
£138.53 · 2% moreFs63 Hz −10%, better
Qts0.25 +25%, worse
Vas17.8 L +11%, worse
BL15.2 T·m –
Xmax5.5 mm −8%
Sensitivity94.2 dB −2, worse
Eighteen Sound8NTLW2000
£138.90 · 2% moreFs71 Hz –
Qts0.21 +5%
Vas13 L −19%, better
BL17.5 T·m +14%, better
Xmax4.4 mm −27%, worse
Sensitivity95.5 dB −0.7
Beyma8MC500ND
£140.00 · 3% moreFs69 Hz –
Qts0.18 −10%, better
Vas15.9 L –
BL16.7 T·m +9%
Xmax5 mm −17%, worse
Sensitivity96.4 dB –
LavoceWAN082.02
£148.73 · 9% more, worseFs80 Hz +14%, worse
Qts0.23 +15%, worse
Vas9.0 L −44%, better
BL17.8 T·m +16%, better
Xmax5.8 mm −3%
Sensitivity94.7 dB −1.5
Scanspeak18W/8545-01
£149.18 · 9% more, worseFs25 Hz −64%, better
Qts0.20 –
Vas68.6 L +329%, worse
BL8.4 T·m −45%, worse
Xmax6.5 mm +8%
Sensitivity88.9 dB −7.3, worse
RCFMB8N251
£150.76 · 10% more, worseFs68 Hz –
Qts0.25 +25%, worse
Vas13 L −19%, better
BL15.2 T·m –
Xmax5 mm −17%, worse
Sensitivity94 dB −2.2, worse
Sica8 K 3 PL
£160.07 · 17% more, worseFs68 Hz –
Qts0.25 +25%, worse
Vas12.2 L −24%, better
BL16.1 T·m +5%
Xmax5 mm −17%, worse
Sensitivity93.6 dB −2.6, worse
Eighteen Sound8NTLS2000
£162.28 · 19% more, worseFs41 Hz −41%, better
Qts0.19 −5%
Vas27 L +69%, worse
BL17.2 T·m +12%, better
Xmax7.4 mm +23%, better
Sensitivity91.9 dB −4.3, worse
Beyma8MC300ND
£177.87 · 30% more, worseFs62 Hz −11%, better
Qts0.22 +10%
Vas18 L +13%, worse
BL16 T·m +5%
Xmax6 mm –
Sensitivity94.6 dB −1.6
B&C8FCX51
£178.00 · 30% more, worseFs69 Hz –
Qts0.34 +70%, worse
Vas16 L –
BL11.5 T·m −25%, worse
Xmax6 mm –
Sensitivity93.7 dB −2.5, worse
B&C8CXN51
£225.53 · 65% more, worseFs68 Hz –
Qts0.27 +35%, worse
Vas17 L +6%
BL12.6 T·m −18%, worse
Xmax6 mm –
Sensitivity94.7 dB −1.5
FaitalPRO8HX230
£236.30 · 73% more, worseFs70 Hz –
Qts0.29 +45%, worse
Vas14.7 L −8%
BL15 T·m –
Xmax6.2 mm –
Sensitivity94.1 dB −2.1, worse
FaitalPRO8HX240
£282.04 · 107% more, worseFs70 Hz –
Qts0.30 +50%, worse
Vas12.9 L −19%, better
BL13.8 T·m −10%
Xmax6.2 mm –
Sensitivity93.6 dB −2.6, worse
Eighteen Sound8CX650
£344.69 · 153% more, worseFs65 Hz −7%
Qts0.35 +75%, worse
Vas16.6 L +4%
BL12 T·m −22%, worse
Xmax6 mm –
Sensitivity92.9 dB −3.3, worse
AccutonC173-6-096
£846.91 · 521% more, worseFs50 Hz −29%, better
Qts0.22 +10%
Vas17.0 L +6%
BL11.4 T·m −25%, worse
Xmax5 mm −17%, worse
Sensitivity91.5 dB −4.7, worse
Oberton8M250
No current priceFs74 Hz +6%
Qts0.20 –
Vas15.6 L –
BL13.7 T·m −10%, worse
Xmax2.8 mm −54%, worse
Sensitivity97 dB +0.8
LavoceWAF082.01
No current priceFs76 Hz +9%
Qts0.21 +5%
Vas10.2 L −36%, better
BL17.9 T·m +17%, better
Xmax5.8 mm −3%
Sensitivity95.1 dB −1.1
CelestionNTR08-2009D
No current priceFs71 Hz –
Qts0.21 +5%
Vas11.7 L −27%, better
BL18.0 T·m +18%, better
Xmax6.5 mm +8%
Sensitivity94.6 dB −1.6
PeerlessNSM-0820R00-04
No current priceFs77 Hz +10%, worse
Qts0.18 −10%, better
Vas11 L −31%, better
BL13.7 T·m −10%, worse
Xmax6.6 mm +10%
Sensitivity96.3 dB –
B&C8CLA64
No current priceFs71 Hz –
Qts0.24 +20%, worse
Vas12.5 L −22%, better
BL16.4 T·m +7%
Xmax5.3 mm −12%, worse
Sensitivity94.6 dB −1.6
Oberton8NB201
No current priceFs71 Hz –
Qts0.24 +22%, worse
Vas12.5 L −22%, better
BL14.4 T·m −6%
Xmax5.3 mm −13%, worse
Sensitivity94.4 dB −1.8
Oberton8M150
No current priceFs68 Hz –
Qts0.22 +8%
Vas21.6 L +35%, worse
BL11.6 T·m −24%, worse
Xmax3.3 mm −46%, worse
Sensitivity96.9 dB +0.7
REDCATT81NPM-1
No current priceFs72 Hz –
Qts0.33 +65%, worse
Vas10.3 L −36%, better
BL16.7 T·m +9%
Xmax6 mm –
Sensitivity92.6 dB −3.6, worse
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 | £136.46, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £136.46 | In stock | Visit shop at JP Leisure | |
Blue Aran 5-7 weeks | £143.84 | 5.4% above the lowest price | 47 in stock | Visit shop at Blue Aran |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£133.69 → £136.46Up 2.1% from £133.69
- 23 JunBlue Aran£143.90 → £143.84Down <0.1% from £143.90
- 5 JunBlue Aran£136.03 → £143.90Up 5.8% from £136.03