- Net volume
- 100L
- Tuning
- 47Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
15-inch LF driver · 15CL series · 76 mm voice coil · 400 W
B&C 15CL76 4Ω
40–3000 Hz
- Fs
- 42Hz
- Xmax
- 7mm
- SPL
- 98dB
- Pe
- 400W
- BL
- 19.1T·m
- Vd
- 599cm³
- Qts
- 0.25
- Vas
- 140L
Published graphs
B&C 15CL76 is a 15-inch 4 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.25, Vas 140 L, Xmax 7 mm, sensitivity 97.9 dB, plus 599 cm³ Vd and 156 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 £126.74.
The published T/S values agree with each other
Thiele/Small
- Fs
- 42Hz
- Qts
- 0.25
- Qes
- 0.27
- Qms
- 4.7
- Vas
- 140L
- Re
- 3.5Ω
- Le
- 1mH
Motor and cone
- BL
- 19.1T·m
- Sd
- 855cm²
- Mms
- 107g
- Xmax
- 7mm
- Vd †
- 599cm³
- Voice coil
- 76mm
- Flux density
- 1.15T
Power and response
- Sensitivity †
- 97.9dB
- Manufacturer sensitivity
- 98dB
- Power
- 400W
- Nominal power
- 400W
- Impedance
- 4Ω
- Min. impedance
- 4.3Ω
- Range
- 40–3000Hz
- EBP †
- 156 · Leans vented
Size and mounting
- Diameter
- 389mm
- Cutout
- 353mm
- Bolt circle
- 374mm
- Depth
- 171mm
- Weight
- 3.8kg
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 19.1T·m
- Fs
- 42Hz
- Le
- 1mH
- Re
- 3.5Ω
- Sd
- 855cm²
- Mms
- 107g
- Qes
- 0.27
- Qms
- 4.7
- Qts
- 0.25
- SPL
- 97.9dB
- Vas
- 140L
- Xmax
- 7mm
- Power
- 400W
- Impedance
- 4Ω
- Flux density
- 1.15T
- Sensitivity
- 98dB
- Low limit
- 40Hz
- Nominal power
- 400W
- Calculated sensitivity †
- 97.9dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 98dB
- Min. impedance
- 4.3Ω
- Voice coil
- 76mm
- Weight
- 3.8kg
- Diameter
- 389mm
- Depth
- 171mm
- Cutout
- 353mm
- Bolt circle
- 374mm
- Bl
- 19.1 Tm
- Fs
- 42 Hz
- Le
- 1 mH
- Re
- 3.5 Ω
- Sd
- 855 cm² (132.5 in²)
- Ebp
- 156 Hz
- Mms
- 106.5 g
- Qes
- 0.27
- Qms
- 4.7
- Qts
- 0.25
- Vas
- 140 dm³ (4.94 ft³)
- Η0
- 3.7 %
- Cone
- RCK15CL764
- Xmax
- 7 mm
- Xvar
- 8 mm
- Depth
- 171 mm (6.73 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 3.8 kg (8.38 lb)
- Pole design
- Straight Pole
- Sensitivity
- 98 dB
- Flux density
- 1.15 T
- Shipping box
- 425x425x224 mm (16.73x16.73x8.82 in)
- Winding depth
- 19 mm (0.75 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 40 Hz - 3000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 5.1 kg (11.24 lb)
- Nominal diameter
- 380 mm (15 in)
- Overall diameter
- 389 mm (15.31 in)
- Winding material
- Copper
- Minimum impedance
- 4.3 Ω
- Nominal impedance
- 4 Ω
- Magnetic gap depth
- 11 mm (0.43 in)
- Recommended tuning
- 47 Hz
- Recommended loading
- Vented Box
- Voice coil diameter
- 76 mm (3 in)
- Bolt circle diameter
- 374 mm (14.72 in)
- Recommended enclosure
- 100 dm³ (3.53 ft³)
- Woofer cone treatment
- WP Waterproof Front Side
- Baffle cutout diameter
- 353 mm (13.9 in)
- Nominal power handling
- 400 W
- Continuous power handling
- 800 W
- Flange and gasket thickness
- 11 mm (0.43 in)
- Air volume occupied by driver
- 4.4 dm³ (0.15 ft³)
B&C’s suggested box
From B&C’s 15CL76 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 15CL76. Clear differences are green when better and red when worse.
This driver15CL76
Best price
£126.74
Fs
42 Hz
Qts
0.25
Vas
140 L
BL
19.1 T·m
Xmax
7 mm
Sensitivity
97.9 dB
Power
400 W
Eighteen Sound15W700
£179.95 · 42% more, worseFs41 Hz –
Qts0.27 +8%
Vas180 L +29%, worse
BL14.7 T·m −23%, worse
Xmax6.5 mm −7%
Sensitivity98.3 dB –
B&C15PLB76
£181.65 · 43% more, worseFs42 Hz –
Qts0.25 –
Vas164 L +17%, worse
BL22.1 T·m +16%, better
Xmax5 mm −29%, worse
Sensitivity98.7 dB +0.8
B&C15NDL76
£181.65 · 43% more, worseFs37 Hz −12%, better
Qts0.22 −12%, better
Vas195 L +39%, worse
BL22.5 T·m +18%, better
Xmax7 mm –
Sensitivity98.2 dB –
RCFL15P400
£214.72 · 69% more, worseFs36 Hz −14%, better
Qts0.25 –
Vas160 L +14%, worse
BL24.8 T·m +30%, better
Xmax8 mm +14%, better
Sensitivity96.4 dB −1.5
Eighteen Sound15ND930
£233.35 · 84% more, worseFs35 Hz −17%, better
Qts0.24 −4%
Vas182 L +30%, worse
BL17 T·m −11%, worse
Xmax7.5 mm +7%
Sensitivity97.1 dB −0.8
B&C15NDL88
£235.97 · 86% more, worseFs41 Hz –
Qts0.28 +12%, worse
Vas154 L +10%, worse
BL16.5 T·m −14%, worse
Xmax8 mm +14%, better
Sensitivity97.7 dB –
Eighteen Sound15LW1401
£254.65 · 101% more, worseFs39 Hz −7%
Qts0.26 +4%
Vas127 L −9%
BL22 T·m +15%, better
Xmax9 mm +29%, better
Sensitivity96.5 dB −1.4
Eighteen Sound15ND940
£256.68 · 103% more, worseFs39 Hz −7%
Qts0.26 +4%
Vas170 L +21%, worse
BL16.6 T·m −13%, worse
Xmax9.5 mm +36%, better
Sensitivity97.8 dB –
Eighteen Sound15ND730
£276.22 · 118% more, worseFs44 Hz +5%
Qts0.29 +16%, worse
Vas156 L +11%, worse
BL21 T·m +10%
Xmax6.5 mm −7%
Sensitivity98.5 dB +0.6
Eighteen Sound15NMB1000
£285.89 · 126% more, worseFs46 Hz +10%
Qts0.24 −4%
Vas124 L −11%, better
BL25.2 T·m +32%, better
Xmax6.5 mm −7%
Sensitivity99 dB +1.1
Eighteen Sound15NLW9401
£288.50 · 128% more, worseFs40 Hz −5%
Qts0.25 –
Vas114 L −19%, better
BL20 T·m +5%
Xmax10 mm +43%, better
Sensitivity96.5 dB −1.4
Eighteen Sound15NLW9300
£315.00 · 149% more, worseFs39 Hz −7%
Qts0.26 +4%
Vas170 L +21%, worse
BL24.4 T·m +28%, better
Xmax8 mm +14%, better
Sensitivity97.8 dB –
MonacorFTX1530/8
£360.73 · 185% more, worseFs43 Hz –
Qts0.28 +10%, worse
Vas172.1 L +23%, worse
BL20.2 T·m +6%
Xmax6 mm −14%, worse
Sensitivity98.5 dB +0.6
Oberton15NB451
No current priceFs40 Hz −6%
Qts0.26 –
Vas145.2 L +4%
BL22.9 T·m +20%, better
Xmax7 mm –
Sensitivity97.4 dB −0.5
Oberton15B500
No current priceFs38 Hz −9%
Qts0.27 +7%
Vas145.8 L +4%
BL22.9 T·m +20%, better
Xmax7.3 mm +4%
Sensitivity96.8 dB −1.1
Oberton15B450 / 15B450A / 15B450A2
No current priceFs45 Hz +7%
Qts0.29 +14%, worse
Vas146.8 L +5%
BL20.4 T·m +7%
Xmax6.8 mm −4%
Sensitivity98.6 dB +0.7
Precision DevicesPD.153C002
No current priceFs38 Hz −10%
Qts0.25 –
Vas263 L +88%, worse
BL18.9 T·m –
Xmax6.8 mm −4%
Sensitivity99.4 dB +1.5
RCFMB15N405
No current priceFs46 Hz +10%
Qts0.27 +8%
Vas124 L −11%, better
BL23.5 T·m +23%, better
Xmax7 mm –
Sensitivity98.4 dB +0.5
Oberton15NB500
No current priceFs43 Hz –
Qts0.26 –
Vas121.5 L −13%, better
BL24.3 T·m +27%, better
Xmax7.3 mm +4%
Sensitivity97.7 dB –
Sica15 K 3 PL
No current priceFs40 Hz −5%
Qts0.27 +8%
Vas166.1 L +19%, worse
BL21.4 T·m +12%, better
Xmax6.5 mm −7%
Sensitivity97.8 dB –
BMS15S430V2
No current priceFs40 Hz −5%
Qts0.26 +4%
Vas135 L −4%
BL25.0 T·m +31%, better
Xmax7.5 mm +7%
Sensitivity97 dB −0.9
No photo
PHL Audio5241MNDU-7
No current priceFs45 Hz +7%
Qts0.26 +4%
Vas120.5 L −14%, better
BL24.3 T·m +27%, better
Xmax7.5 mm +7%
Sensitivity98 dB –
No photo
PHL Audio5011MNDU
No current priceFs38 Hz −10%
Qts0.26 +4%
Vas169 L +21%, worse
BL23.7 T·m +24%, better
Xmax7.5 mm +7%
Sensitivity97.2 dB −0.7
RCFCX15N351
No current priceFs55 Hz +31%, worse
Qts0.26 +4%
Vas110 L −21%, better
BL23.5 T·m +23%, better
Xmax6 mm −14%, worse
Sensitivity100.3 dB +2.4, better
CelestionFTX1530
No current priceFs43 Hz –
Qts0.28 +10%, worse
Vas172.1 L +23%, worse
BL20.2 T·m +6%
Xmax6 mm −14%, worse
Sensitivity98.5 dB +0.6
CelestionFTR15-4080F
No current priceFs38 Hz −10%
Qts0.25 –
Vas163.1 L +16%, worse
BL23.5 T·m +23%, better
Xmax8.5 mm +21%, better
Sensitivity97.2 dB −0.7
BMS15N830V2
No current priceFs37 Hz −12%, better
Qts0.27 +8%
Vas159 L +14%, worse
BL22.4 T·m +17%, better
Xmax8 mm +14%, better
Sensitivity96.5 dB −1.4
Oberton15NMB500
No current priceFs45 Hz +7%
Qts0.29 +17%, worse
Vas128.0 L −9%
BL21.3 T·m +12%, better
Xmax7.8 mm +11%, better
Sensitivity97.9 dB –
Oberton15HCX3572
No current priceFs46 Hz +10%, worse
Qts0.34 +36%, worse
Vas140.7 L –
BL18.8 T·m –
Xmax7.3 mm +4%
Sensitivity98 dB –
Sica15 F 4 CP
No current priceFs46 Hz +10%, worse
Qts0.27 +8%
Vas97 L −31%, better
BL26 T·m +36%, better
Xmax7 mm –
Sensitivity97.4 dB −0.5
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann5.0 out of 51 rating · Checked 7 Oct 2026Read reviews on Thomann
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Thomann | £151.00, the lowest price | In stock | Visit shop at Thomann | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £161.41 | 6.9% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £161.41 | 6.9% above the lowest price | In stock | Visit shop at JP Leisure |
Blue Aran 5-7 weeks | £172.78 | 14% above the lowest price | 76 in stock | Visit shop at Blue Aran |
Audio Video Parts Import VAT and duty may apply | £126.74 | In stock | Visit shop at Audio Video Parts |
Best price over time
Tracked since 1 Apr
Recent changes
- 4 OctThomann£153.00 → £151.00Down 1.3% from £153.00
- 26 SepThomann£152.00 → £153.00Up 0.7% from £152.00
- 18 SepThomann£153.00 → £152.00Down 0.7% from £153.00