- Net volume
- 40L
- Tuning
- 64Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
12-inch LF driver · 12CL series · 64 mm voice coil · 250 W
B&C 12CL64 8Ω
8 Ω · 50–3000 Hz
- Fs
- 52Hz
- Xmax
- 4.5mm
- SPL
- 97dB
- Pe
- 250W
- BL
- 17.5T·m
- Vd
- 235cm³
- Qts
- 0.30
- Vas
- 64L
Published graphs
B&C 12CL64 is a 12-inch 8 ohm LF driver rated at 250 W RMS. The validated T/S data includes Fs 52 Hz, Qts 0.30, Vas 64 L, Xmax 4.5 mm, sensitivity 96.5 dB, plus 235 cm³ Vd and 163 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 £79.00.
The published T/S values agree with each other
Thiele/Small
- Fs
- 52Hz
- Qts
- 0.30
- Qes
- 0.32
- Qms
- 4.3
- Vas
- 64L
- Re
- 5.5Ω
- Le
- 1.10mH
Motor and cone
- BL
- 17.5T·m
- Sd
- 522cm²
- Mms
- 55g
- Xmax
- 4.5mm
- Vd †
- 235cm³
- Voice coil
- 64mm
- Flux density
- 1.15T
Power and response
- Sensitivity †
- 96.5dB
- Manufacturer sensitivity
- 98dB
- Power
- 250W
- Nominal power
- 250W
- Impedance
- 8Ω
- Min. impedance
- 6.3Ω
- Range
- 50–3000Hz
- EBP †
- 163 · Leans vented
Size and mounting
- Diameter
- 313mm
- Cutout
- 282mm
- Bolt circle
- 299mm
- Depth
- 133mm
- Weight
- 1.9kg
Sensitivity shows 96.5 dB, calculated from the T/S values. B&C publishes 98.0 dB, 1.5 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 17.5T·m
- Fs
- 52Hz
- Le
- 1.10mH
- Re
- 5.5Ω
- Sd
- 522cm²
- Mms
- 55g
- Qes
- 0.32
- Qms
- 4.3
- Qts
- 0.30
- SPL
- 96.5dB
- Vas
- 64L
- Xmax
- 4.5mm
- Power
- 250W
- Impedance
- 8Ω
- Flux density
- 1.15T
- Sensitivity
- 98dB
- Low limit
- 50Hz
- Nominal power
- 250W
- Calculated sensitivity †
- 96.5dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 98dB
- Min. impedance
- 6.3Ω
- Voice coil
- 64mm
- Weight
- 1.9kg
- Diameter
- 313mm
- Depth
- 133mm
- Cutout
- 282mm
- Bolt circle
- 299mm
- Bl
- 17.5 Tm
- Fs
- 52 Hz
- Le
- 1.1 mH
- Re
- 5.5 Ω
- Sd
- 522 cm² (80.9 in²)
- Ebp
- 163 Hz
- Mms
- 55 g
- Qes
- 0.32
- Qms
- 4.3
- Qts
- 0.3
- Vas
- 64 dm³ (2.25 ft³)
- Η0
- 3.4 %
- Cone
- RCK12CL648
- Xmax
- 4.5 mm
- Xvar
- 6 mm
- Depth
- 133 mm (5.24 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 1.9 kg (4.2 lb)
- Pole design
- Straight Pole
- Sensitivity
- 98 dB
- Flux density
- 1.15 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 13 mm (0.51 in)
- Shipping units
- 1 pcs
- Surround shape
- Double Roll
- Former material
- Glass Fibre
- Frequency range
- 50 Hz - 3000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 2.8 kg (6.17 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 313 mm (12.32 in)
- Winding material
- Copper
- Minimum impedance
- 6.3 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 8 mm (0.31 in)
- Recommended tuning
- 64 Hz
- Voice coil diameter
- 64 mm (2.5 in)
- Bolt circle diameter
- 299 mm (11.77 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
- 250 W
- Continuous power handling
- 500 W
- Flange and gasket thickness
- 9 mm (0.35 in)
- Air volume occupied by driver
- 2 dm³ (0.07 ft³)
B&C’s suggested box
From B&C’s 12CL64 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 12CL64. Clear differences are green when better and red when worse.
This driver12CL64
Best price
£79.00
Fs
52 Hz
Qts
0.30
Vas
64 L
BL
17.5 T·m
Xmax
4.5 mm
Sensitivity
96.5 dB
Power
250 W
LavoceWSF122.50
£75.52 · 4% lessFs49 Hz −6%
Qts0.33 +10%, worse
Vas70.2 L +10%
BL17.2 T·m –
Xmax4.7 mm +4%
Sensitivity95.8 dB −0.7
Dayton AudioPA310-8
£83.27 · 5% more, worseFs39 Hz −25%, better
Qts0.29 −3%
Vas91.8 L +43%, worse
BL18 T·m –
Xmax5 mm +11%, better
Sensitivity94.6 dB −1.9
CelestionTF1225E
£99.00 · 25% more, worseFs53 Hz –
Qts0.33 +11%, worse
Vas67.7 L +6%
BL17.7 T·m –
Xmax5.3 mm +17%, better
Sensitivity96.3 dB –
MonacorTF1225E/8
£105.87 · 34% more, worseFs53 Hz –
Qts0.33 +11%, worse
Vas67 L +5%
BL17.7 T·m –
Xmax5 mm +11%, better
Sensitivity96.3 dB –
CIAREPWA12.64
£116.03 · 47% more, worseFs55 Hz +6%
Qts0.35 +17%, worse
Vas58 L −9%
BL17.6 T·m –
Xmax4.5 mm –
Sensitivity96.3 dB –
B&C12FW64
£136.93 · 73% more, worseFs55 Hz +6%
Qts0.29 −3%
Vas64 L –
BL15.5 T·m −11%, worse
Xmax5 mm +11%, better
Sensitivity97.3 dB +0.8
REDCATT12NPM
£169.31 · 114% more, worseFs49 Hz −6%
Qts0.31 +3%
Vas63.6 L –
BL17.3 T·m –
Xmax4.0 mm −10%, worse
Sensitivity95.7 dB −0.8
FaitalPRO12FH520
£197.29 · 150% more, worseFs50 Hz −4%
Qts0.29 −3%
Vas73.7 L +15%, worse
BL17.3 T·m –
Xmax7.3 mm +61%, better
Sensitivity96.9 dB –
Eighteen Sound12NCX750
£426.63 · 440% more, worseFs58 Hz +12%, worse
Qts0.29 −3%
Vas63 L –
BL17.5 T·m –
Xmax5.5 mm +22%, better
Sensitivity98 dB +1.5
Eighteen Sound12NCX910
£436.54 · 453% more, worseFs57 Hz +10%
Qts0.30 –
Vas58 L −9%
BL18.1 T·m +3%
Xmax6.9 mm +53%, better
Sensitivity97.4 dB +0.9
Eighteen Sound12NCX750H
£444.75 · 463% more, worseFs58 Hz +12%, worse
Qts0.29 −3%
Vas63 L –
BL17.5 T·m –
Xmax5.5 mm +22%, better
Sensitivity98 dB +1.5
Eighteen Sound12NCX910N
£478.98 · 506% more, worseFs57 Hz +10%
Qts0.30 –
Vas58 L −9%
BL18.1 T·m +3%
Xmax6.9 mm +53%, better
Sensitivity97.4 dB +0.9
Oberton12NCX
No current priceFs58 Hz +12%, worse
Qts0.30 –
Vas62.9 L –
BL17.2 T·m –
Xmax5.3 mm +17%, better
Sensitivity98.1 dB +1.6
Sica12 C 2.5 CP
No current priceFs51 Hz –
Qts0.30 –
Vas84.5 L +32%, worse
BL17.3 T·m –
Xmax5 mm +11%, better
Sensitivity97.5 dB +1
CelestionNTR12-3018D
No current priceFs59 Hz +13%, worse
Qts0.30 –
Vas50.4 L −21%, better
BL19.9 T·m +14%, better
Xmax4 mm −11%, worse
Sensitivity97 dB +0.5
PRV Audio12MB2000FT-NDY
No current priceFs55 Hz +6%
Qts0.30 –
Vas71.5 L +12%, worse
BL17.7 T·m –
Xmax6 mm +33%, better
Sensitivity97.9 dB +1.4
Eighteen Sound12NCX910BE
No current priceFs57 Hz +10%
Qts0.30 –
Vas58 L −9%
BL18.1 T·m +3%
Xmax6.9 mm +53%, better
Sensitivity97.4 dB +0.9
FaneCOLOSSUS 12MB
No current priceFs55 Hz +6%
Qts0.29 −5%
Vas56 L −13%, better
BL18.3 T·m +5%
Xmax5.5 mm +22%, better
Sensitivity96.5 dB –
BMS12S302
No current priceFs45 Hz −13%, better
Qts0.25 −16%, better
Vas65 L –
BL15.7 T·m −11%, worse
Xmax4.5 mm –
Sensitivity95.5 dB −1
CIARECSD124-22
No current priceFs34 Hz −35%, better
Qts0.30 –
Vas54 L −16%, better
BL18.2 T·m +4%
Xmax13 mm +189%, better
Sensitivity90.2 dB −6.3, worse
B&C12FL76
No current priceFs50 Hz −4%
Qts0.30 –
Vas57 L −11%, better
BL18.7 T·m +7%
Xmax6 mm +33%, better
Sensitivity95.5 dB −1
P.Audio12NX-76MB
No current priceFs55 Hz +6%
Qts0.31 +3%
Vas50.3 L −21%, better
BL21.4 T·m +22%, better
Xmax4.8 mm +6%
Sensitivity96.3 dB –
P.Audio12NT-76MB
No current priceFs55 Hz +6%
Qts0.36 +20%, worse
Vas71.6 L +12%, worse
BL17.4 T·m –
Xmax4.5 mm –
Sensitivity97.1 dB +0.6
P.Audio12BM-300B-V3
No current priceFs55 Hz +6%
Qts0.34 +13%, worse
Vas62.4 L –
BL17.1 T·m –
Xmax3.9 mm −13%, worse
Sensitivity96.6 dB –
P.Audio12BM-400B
No current priceFs55 Hz +6%
Qts0.34 +13%, worse
Vas62.4 L –
BL17.1 T·m –
Xmax3.9 mm −13%, worse
Sensitivity96.6 dB –
P.Audio12BMA-500B
No current priceFs57 Hz +10%
Qts0.34 +13%, worse
Vas61.4 L −4%
BL16.7 T·m −5%
Xmax5 mm +11%, better
Sensitivity97 dB +0.5
PRV Audio12MB2000FT
No current priceFs56 Hz +7%
Qts0.32 +7%
Vas66.9 L +5%
BL17.7 T·m –
Xmax6 mm +33%, better
Sensitivity97.5 dB +1
CelestionTN1225
No current priceFs61 Hz +18%, worse
Qts0.31 –
Vas63.7 L –
BL15.8 T·m −10%
Xmax2.5 mm −44%, worse
Sensitivity98.4 dB +1.9
Oberton12HCX
No current priceFs53 Hz –
Qts0.33 +11%, worse
Vas55.5 L −13%, better
BL17.8 T·m –
Xmax5.3 mm +17%, better
Sensitivity95.6 dB −0.9
MonacorSP-12A/302PA
No current priceFs50 Hz −4%
Qts0.34 +13%, worse
Vas77 L +20%, worse
BL17.0 T·m –
Xmax5 mm +11%, better
Sensitivity96.4 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.5 out of 54 ratings · Checked 9 Oct 2026Read reviews on Parts Express
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Blue Aran | £79.00, the lowest price | 1 in stock | Visit shop at Blue Aran | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £117.34 | 49% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £117.34 | 49% above the lowest price | In stock | Visit shop at JP Leisure |
Lean Business | £131.95 | 67% above the lowest price | Stock not listed | Visit shop at Lean Business |
Audio Video Parts Import VAT and duty may apply | £93.88 | 19% above the lowest price | In stock | Visit shop at Audio Video Parts |
Parts Express Import VAT and duty may apply | £139.47 | 77% above the lowest price | 3 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 15 SepBlue Aran£121.66 → £79.00Down 35% from £121.66
- 3 AugBlue Aran£78.54 → £121.66Up 55% from £78.54
- 23 JunJP Leisure£111.32 → £117.34Up 5.4% from £111.32