PeerlessFSL-0818R01-08
£34.07 · 78% less, betterFs74 Hz –
Qts0.37 –
Vas15.9 L +6%
BL11.3 T·m –
Xmax4.3 mm −21%, worse
Sensitivity93.9 dB –
8-inch LF driver · 8CX series · 52 mm voice coil · 200 W
B&C 8CX21 8Ω
8 Ω
£151.61
SteadyJP Leisure · In stock · All 6 offers
- Fs
- 74Hz
- Xmax
- 5.5mm
- SPL
- 94dB
- Pe
- 200W
- BL
- 11.5T·m
- Vd
- 121cm³
- Qts
- 0.36
- Vas
- 15L
Published graphs
B&C 8CX21 is an 8-inch 8 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 74 Hz, Qts 0.36, Vas 15 L, Xmax 5.5 mm, sensitivity 94 dB, plus 121 cm³ Vd and 190 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 £151.61.
The published T/S values agree with each other
Thiele/Small
- Fs
- 74Hz
- Qts
- 0.36
- Qes
- 0.39
- Qms
- 4.1
- Vas
- 15L
- Re
- 5.2Ω
- Le
- 1.20mH
Motor and cone
- BL
- 11.5T·m
- Sd
- 220cm²
- Mms
- 21g
- Xmax
- 5.5mm
- Vd †
- 121cm³
- Voice coil
- 52mm
- Flux density
- 1.10T
Power and response
- Sensitivity †
- 94dB
- Manufacturer sensitivity
- 94dB
- Power
- 200W
- Nominal power
- 200W
- Impedance
- 8Ω
- Min. impedance
- 6.1Ω
- EBP †
- 190 · Leans vented
Excursion and motor values come from the LF section; the frequency range spans every section.
† Calculated by bits from the published values
What this validation status means
Components and manufacturer details
LF · Specifications LF unit
- BL
- 11.5T·m
- Fs
- 74Hz
- Le
- 1.20mH
- Re
- 5.2Ω
- Sd
- 220cm²
- Mms
- 21g
- Qes
- 0.39
- Qms
- 4.1
- Qts
- 0.36
- SPL
- 94dB
- Vas
- 15L
- Xmax
- 5.5mm
- Power
- 200W
- Impedance
- 8Ω
- Flux density
- 1.10T
- Sensitivity
- 94dB
- Nominal power
- 200W
- Calculated sensitivity †
- 94dB
- Manufacturer sensitivity
- 94dB
- Min. impedance
- 6.1Ω
- Voice coil
- 52mm
- Bl
- 11.5 Tm
- Fs
- 74 Hz
- Le
- 1.2 mH
- Re
- 5.2 Ω
- Sd
- 220 cm² (34.1 in²)
- Ebp
- 190 Hz
- Mms
- 21 g
- Qes
- 0.39
- Qms
- 4.1
- Qts
- 0.36
- Vas
- 15 dm³ (0.55 ft³)
- Η0
- 1.5 %
- Xvar
- 5.5 mm
- Sensitivity
- 94 dB
- Flux density
- 1.1 T
- Winding depth
- 16 mm (0.63 in)
- Former material
- Kapton
- Nominal diameter
- 210 mm (8 in)
- Winding material
- Copper
- Minimum impedance
- 6.1 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 8 mm (0.31 in)
- Voice coil diameter
- 52 mm (2 in)
- Woofer cone treatment
- WP Waterproof Front Side
- Nominal power handling
- 200 W
- Continuous power handling
- 400 W
HF · Specifications HF unit
- Le
- 0.14mH
- SPL
- 101dB
- Power
- 25W
- Impedance
- 8Ω
- Flux density
- 1.45T
- Sensitivity
- 101dB
- Nominal power
- 25W
- Manufacturer sensitivity
- 101dB
- Min. impedance
- 7.2Ω
- Voice coil
- 36mm
- Crossover
- 2200Hz
- Inductance
- 0.14 mH
- Sensitivity
- 101 dB
- Flux density
- 1.45 T
- Nominal diameter
- 210 mm (8 in)
- Winding material
- Aluminium
- Minimum impedance
- 7.2 Ω
- Nominal impedance
- 8 Ω
- Diaphragm material
- Polyester
- Voice coil diameter
- 36 mm (1.4 in)
- Recommended crossover
- 2.2 kHz
- Nominal power handling
- 25 W
- Continuous power handling
- 50 W
02
Compare
Same-size drivers, compared with the 8CX21. Clear differences are green when better and red when worse.
This driver8CX21
Best price
£151.61
Fs
74 Hz
Qts
0.36
Vas
15 L
BL
11.5 T·m
Xmax
5.5 mm
Sensitivity
94 dB
Power
200 W
FaitalPRO8FE300
£43.52 · 71% less, betterFs70 Hz −5%
Qts0.44 +22%, worse
Vas15.7 L +5%
BL11.3 T·m –
Xmax5.5 mm –
Sensitivity92.7 dB −1.3
FaneSOVEREIGN 8-225
£51.00 · 66% less, betterFs62 Hz −16%, better
Qts0.38 +6%
Vas22 L +47%, worse
BL11 T·m −4%
Xmax5.5 mm –
Sensitivity93 dB −1
Dayton AudioDSA215-8
£56.77 · 63% less, betterFs35 Hz −53%, better
Qts0.33 −8%
Vas37.4 L +149%, worse
BL10.6 T·m −8%
Xmax5.5 mm –
Sensitivity88.1 dB −5.9, worse
CelestionTRUVOX 0820
£59.70 · 61% less, betterFs74 Hz –
Qts0.39 +8%
Vas17.3 L +15%, worse
BL11.5 T·m –
Xmax5 mm −9%
Sensitivity94.3 dB –
LavoceWAF082.00
£71.42 · 53% less, betterFs78 Hz +5%
Qts0.37 –
Vas11.9 L −21%, better
BL12.5 T·m +9%
Xmax6.3 mm +15%, better
Sensitivity93.4 dB −0.6
B&C8PS21
£80.65 · 47% less, betterFs73 Hz –
Qts0.33 −8%
Vas14 L −7%
BL12.6 T·m +10%
Xmax5 mm −9%
Sensitivity93.8 dB –
Sica8 S 2.5 CP
£81.22 · 46% less, betterFs54 Hz −27%, better
Qts0.33 −8%
Vas18.6 L +24%, worse
BL11.9 T·m +3%
Xmax5 mm −9%
Sensitivity91 dB −3, worse
B&C8NDL51
£90.71 · 40% less, betterFs66 Hz −11%, better
Qts0.37 –
Vas14 L −7%
BL12.4 T·m +8%
Xmax7 mm +27%, better
Sensitivity91.9 dB −2.1, worse
PRV Audio8MR600X
£95.66 · 37% less, betterFs77 Hz +4%
Qts0.40 +11%, worse
Vas20.0 L +33%, worse
BL10.5 T·m −8%
Xmax5.3 mm −5%
Sensitivity95.3 dB +1.3
FaitalPRO8PR200
£99.14 · 35% less, betterFs58 Hz −22%, better
Qts0.37 –
Vas16.9 L +13%, worse
BL11.5 T·m –
Xmax8.2 mm +48%, better
Sensitivity91.4 dB −2.6, worse
Beyma8G40
£101.22 · 33% less, betterFs70 Hz −5%
Qts0.36 –
Vas17 L +13%, worse
BL12.2 T·m +6%
Xmax6.5 mm +18%, better
Sensitivity93.9 dB –
Sica8 FE 2 CP
£105.83 · 30% less, betterFs67 Hz −9%
Qts0.32 −11%, better
Vas16.9 L +13%, worse
BL12.3 T·m +7%
Xmax4.5 mm −18%, worse
Sensitivity93.4 dB −0.6
B&C8BG51
£106.72 · 30% less, betterFs52 Hz −30%, better
Qts0.40 +11%, worse
Vas18 L +20%, worse
BL11.8 T·m –
Xmax6.5 mm +18%, better
Sensitivity89.8 dB −4.2, worse
WavecorSW178WA01
£122.05 · 19% less, betterFs38 Hz −49%, better
Qts0.36 –
Vas12.2 L −19%, better
BL12 T·m +4%
Xmax5 mm −9%
Sensitivity84.6 dB −9.4, worse
LavoceCSF082.00K
£143.11 · 6% less, betterFs81 Hz +9%
Qts0.40 +11%, worse
Vas14.8 L –
BL11.0 T·m −4%
Xmax5 mm −9%
Sensitivity94.5 dB +0.5
SB AudienceNERO-8MWN400D
£152.56 · Same priceFs63 Hz −15%, better
Qts0.38 +6%
Vas13.9 L −7%
BL11.9 T·m +3%
Xmax6.7 mm +22%, better
Sensitivity91.3 dB −2.7, worse
FaitalPRO8HX150
£159.23 · 5% more, worseFs76 Hz –
Qts0.41 +14%, worse
Vas13 L −13%, better
BL11.6 T·m –
Xmax4.9 mm −11%, worse
Sensitivity93.3 dB −0.7
B&C8FCX51
£178.00 · 17% more, worseFs69 Hz −7%
Qts0.34 −6%
Vas16 L +7%
BL11.5 T·m –
Xmax6 mm +9%
Sensitivity93.7 dB –
Eighteen Sound8CX650
£344.69 · 127% more, worseFs65 Hz −12%, better
Qts0.35 –
Vas16.6 L +11%, worse
BL12 T·m +4%
Xmax6 mm +9%
Sensitivity92.9 dB −1.1
SB AudienceROSSO-8CX250
No current priceFs70 Hz −5%
Qts0.32 −11%, better
Vas15.8 L +5%
BL11.4 T·m –
Xmax5.4 mm –
Sensitivity93.7 dB –
JensenBS8N250A-8
No current priceFs59 Hz −20%, better
Qts0.37 –
Vas14.9 L –
BL12.8 T·m +12%, better
Xmax5 mm −9%
Sensitivity91 dB −3, worse
No photo
PHL Audio2420
No current priceFs72 Hz –
Qts0.33 −8%
Vas13.3 L −11%, better
BL12.9 T·m +12%, better
Xmax5.5 mm –
Sensitivity93.3 dB −0.7
LavoceCAF082.00K
No current priceFs72 Hz –
Qts0.34 −6%
Vas15.1 L –
BL11.7 T·m –
Xmax6.7 mm +22%, better
Sensitivity93.7 dB –
LavoceWSF081.82
No current priceFs79 Hz +7%
Qts0.38 +6%
Vas14.3 L −5%
BL11.3 T·m –
Xmax4.6 mm −16%, worse
Sensitivity94.2 dB –
Oberton8NCX
No current priceFs77 Hz +4%
Qts0.40 +11%, worse
Vas14.9 L –
BL10.1 T·m −12%, worse
Xmax5.3 mm −5%
Sensitivity94 dB –
No current price
Fs62 Hz −16%, better
Qts0.38 +6%
Vas22 L +47%, worse
BL11 T·m −4%
Xmax5.5 mm –
Sensitivity93 dB −1
MonacorSP-308CX
No current priceFs80 Hz +8%
Qts0.36 –
Vas15.4 L –
BL12.1 T·m +5%
Xmax2.5 mm −55%, worse
Sensitivity94.7 dB +0.7
PRV AudioMT8MB600CF-NDY-4
No current priceFs65 Hz −13%, better
Qts0.37 –
Vas18.8 L +25%, worse
BL9.3 T·m −19%, worse
Xmax4.8 mm −14%, worse
Sensitivity93.3 dB −0.7
Oberton8CX
No current priceFs76 Hz –
Qts0.40 +11%, worse
Vas16.8 L +12%, worse
BL9.4 T·m −18%, worse
Xmax5.3 mm −5%
Sensitivity94.3 dB –
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 | £151.61, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £151.61 | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £159.78 | 5.4% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £159.78 | 5.4% above the lowest price | In stock | Visit shop at JP Leisure |
Blue Aran | £170.89 | 13% above the lowest price | 10+ in stock | Visit shop at Blue Aran |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£136.39 → £151.61Up 11% from £136.39
- 23 JunJP Leisure£147.49 → £159.78Up 8.3% from £147.49
- 23 JunBlue Aran£171.07 → £170.89Down 0.1% from £171.07