- Net volume
- 200L
- Tuning
- 33Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
18-inch LF driver · 18SW series · 100 mm voice coil · 1,500 W
B&C 18SW100 8Ω
35–1000 Hz
- Fs
- 35Hz
- Xmax
- 12.5mm
- SPL
- 95dB
- Pe
- 1500W
- BL
- 26.1T·m
- Vd
- 1513cm³
- Qts
- 0.38
- Vas
- 180L
Published graphs
B&C 18SW100 is an 18-inch 8 ohm LF driver rated at 1500 W RMS. The validated T/S data includes Fs 35 Hz, Qts 0.38, Vas 180 L, Xmax 12.5 mm, sensitivity 94.9 dB, plus 1513 cm³ Vd and 88 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 £337.83.
The published T/S values agree with each other
Thiele/Small
- Fs
- 35Hz
- Qts
- 0.38
- Qes
- 0.40
- Qms
- 5.9
- Vas
- 180L
- Re
- 5.3Ω
- Le
- 2.20mH
Motor and cone
- BL
- 26.1T·m
- Sd
- 1210cm²
- Mms
- 234g
- Xmax
- 12.5mm
- Vd †
- 1513cm³
- Voice coil
- 100mm
- Flux density
- 1.15T
Power and response
- Sensitivity †
- 94.9dB
- Manufacturer sensitivity
- 97dB
- Power
- 1500W
- Nominal power
- 1500W
- Impedance
- 8Ω
- Min. impedance
- 6.5Ω
- Range
- 35–1000Hz
- EBP †
- 88 · Sealed or vented
Size and mounting
- Diameter
- 460mm
- Cutout
- 425mm
- Bolt circle
- 443mm
- Depth
- 239mm
- Weight
- 10.5kg
Sensitivity shows 94.9 dB, calculated from the T/S values. B&C publishes 97.0 dB, 2.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 26.1T·m
- Fs
- 35Hz
- Le
- 2.20mH
- Re
- 5.3Ω
- Sd
- 1210cm²
- Mms
- 234g
- Qes
- 0.40
- Qms
- 5.9
- Qts
- 0.38
- SPL
- 94.9dB
- Vas
- 180L
- Xmax
- 12.5mm
- Power
- 1500W
- Impedance
- 8Ω
- Flux density
- 1.15T
- Sensitivity
- 97dB
- Low limit
- 35Hz
- Nominal power
- 1500W
- Calculated sensitivity †
- 94.9dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 97dB
- Min. impedance
- 6.5Ω
- Voice coil
- 100mm
- Weight
- 10.5kg
- Diameter
- 460mm
- Depth
- 239mm
- Cutout
- 425mm
- Bolt circle
- 443mm
- Bl
- 26.1 Tm
- Fs
- 35 Hz
- Le
- 2.2 mH
- Re
- 5.3 Ω
- Sd
- 1210 cm² (187.6 in²)
- Ebp
- 88 Hz
- Mms
- 234 g
- Qes
- 0.4
- Qms
- 5.9
- Qts
- 0.38
- Vas
- 180 dm³ (6.3 ft³)
- Η0
- 1.9 %
- Cone
- RCK18SW1008
- Xmax
- 12.5 mm
- Xvar
- 16 mm
- Depth
- 239 mm (9.41 in)
- Spider
- Double Silicone
- Cone shape
- Radial
- Net weight
- 10.5 kg (23.15 lb)
- Pole design
- T-Pole
- Sensitivity
- 97 dB
- Flux density
- 1.15 T
- Shipping box
- 500x500x300 mm (19.69x19.69x11.81 in)
- Winding depth
- 32 mm (1.26 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 35 Hz - 1000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 12.3 kg (27.12 lb)
- Nominal diameter
- 460 mm (18 in)
- Overall diameter
- 460 mm (18 in)
- Winding material
- Copper
- Minimum impedance
- 6.5 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 14 mm (0.55 in)
- Recommended tuning
- 33 Hz
- Voice coil diameter
- 100 mm (4 in)
- Bolt circle diameter
- 443 mm (17.44 in)
- Recommended enclosure
- 200 dm³ (7.06 ft³)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Baffle cutout diameter
- 425 mm (16.73 in)
- Nominal power handling
- 1500 W
- Continuous power handling
- 3000 W
- Flange and gasket thickness
- 16 mm (0.63 in)
- Air volume occupied by driver
- 10 dm³ (0.35 ft³)
B&C’s suggested box
From B&C’s 18SW100 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 18SW100. Clear differences are green when better and red when worse.
This driver18SW100
Best price
£337.83
Fs
35 Hz
Qts
0.38
Vas
180 L
BL
26.1 T·m
Xmax
12.5 mm
Sensitivity
94.9 dB
Power
1500 W
B&C18PZW100
£224.09 · 34% less, betterFs37 Hz +6%
Qts0.36 −5%
Vas186 L +3%
BL25.5 T·m –
Xmax8 mm −36%, worse
Sensitivity96 dB +1.1
Beyma18LEX1000FE
£225.00 · 33% less, betterFs34 Hz –
Qts0.38 –
Vas250 L +39%, worse
BL23.8 T·m −9%
Xmax11 mm −12%, worse
Sensitivity96 dB +1.1
CelestionCF1840JD
£239.00 · 29% less, betterFs37 Hz +6%
Qts0.40 +4%
Vas155 L −14%, better
BL24.8 T·m −5%
Xmax12.5 mm –
Sensitivity94.6 dB –
PRV Audio18SW3600
£240.97 · 29% less, betterFs33 Hz −7%
Qts0.36 −5%
Vas279.7 L +55%, worse
BL25.5 T·m –
Xmax13.3 mm +6%
Sensitivity96.1 dB +1.2
FaitalPRO18HP1060
£245.81 · 27% less, betterFs35 Hz –
Qts0.37 –
Vas200.3 L +11%, worse
BL24.8 T·m −5%
Xmax12.4 mm –
Sensitivity95.6 dB +0.7
Beyma18PWB1000FE
£255.00 · 25% less, betterFs27 Hz −23%, better
Qts0.38 –
Vas317 L +76%, worse
BL25 T·m −4%
Xmax12.5 mm –
Sensitivity94 dB −0.9
B&C18TBW100
£266.54 · 21% less, betterFs35 Hz –
Qts0.39 –
Vas175 L –
BL26.4 T·m –
Xmax12 mm −4%
Sensitivity94.7 dB –
B&C18NBX100
£266.54 · 21% less, betterFs35 Hz –
Qts0.38 –
Vas198 L +10%, worse
BL24.8 T·m −5%
Xmax10 mm −20%, worse
Sensitivity95.3 dB –
FaitalPRO18HP1030
£269.00 · 20% less, betterFs35 Hz –
Qts0.41 +8%
Vas185.5 L +3%
BL24.3 T·m −7%
Xmax12.4 mm –
Sensitivity94.7 dB –
Beyma18LEX1600FE
£277.00 · 18% less, betterFs34 Hz –
Qts0.38 –
Vas188 L +4%
BL26.9 T·m +3%
Xmax13 mm +4%
Sensitivity94.7 dB –
Beyma18LEX1200ND
£278.64 · 18% less, betterFs36 Hz –
Qts0.33 −13%, better
Vas219 L +22%, worse
BL26.4 T·m –
Xmax11 mm −12%, worse
Sensitivity96.7 dB +1.8
MonacorCF1840JD/4
£287.75 · 15% less, betterFs37 Hz +6%
Qts0.40 +4%
Vas155 L −14%, better
BL24.8 T·m −5%
Xmax12.5 mm –
Sensitivity94.6 dB –
MonacorCF1840JD/8
£287.75 · 15% less, betterFs37 Hz +6%
Qts0.40 +4%
Vas155 L −14%, better
BL24.8 T·m −5%
Xmax12.5 mm –
Sensitivity94.6 dB –
FaitalPRO18FX800
£297.09 · 12% less, betterFs34 Hz –
Qts0.40 +5%
Vas247 L +37%, worse
BL24 T·m −8%
Xmax13.8 mm +10%, better
Sensitivity95.6 dB +0.7
FaitalPRO18HW1070
£325.00 · 4% lessFs32 Hz −9%
Qts0.38 –
Vas195.9 L +9%
BL27 T·m +3%
Xmax13 mm +4%
Sensitivity94.2 dB −0.7
Eighteen Sound18TLW3000
£332.31 · 2% lessFs33 Hz −6%
Qts0.41 +8%
Vas185 L –
BL24.5 T·m −6%
Xmax12 mm −4%
Sensitivity94 dB −0.9
FaitalPRO18XL1600
£399.95 · 18% more, worseFs32 Hz −9%
Qts0.36 −5%
Vas211.4 L +17%, worse
BL26.7 T·m –
Xmax12.9 mm +3%
Sensitivity94.8 dB –
No photo
Precision DevicesPD.1845-2N
£427.00 · 26% more, worseFs35 Hz –
Qts0.39 –
Vas157 L −13%, better
BL27 T·m +3%
Xmax18 mm +44%, better
Sensitivity94.3 dB −0.6
BMS18N850V2
£457.13 · 35% more, worseFs30 Hz −15%, better
Qts0.33 −13%, better
Vas243 L +35%, worse
BL25.4 T·m –
Xmax12 mm −4%
Sensitivity94.7 dB –
EminenceNSW4018-8
£525.15 · 55% more, worseFs36 Hz –
Qts0.38 –
Vas164.5 L −9%
BL28.2 T·m +8%
Xmax15.2 mm +22%, better
Sensitivity95 dB –
B&C18HTX100
£809.86 · 140% more, worseFs44 Hz +26%, worse
Qts0.32 −16%, better
Vas173 L −4%
BL26.3 T·m –
Xmax13 mm +4%
Sensitivity98.4 dB +3.5, better
CelestionERPROX18
No current priceFs35 Hz –
Qts0.38 –
Vas188.9 L +5%
BL24.4 T·m −7%
Xmax9.5 mm −24%, worse
Sensitivity94.7 dB –
PeerlessFCP-1840R02-08
No current priceFs39 Hz +11%, worse
Qts0.43 +13%, worse
Vas156 L −13%, better
BL26.2 T·m –
Xmax13.5 mm +8%
Sensitivity95.2 dB –
No current price
Fs33 Hz −6%
Qts0.39 –
Vas257 L +43%, worse
BL22.4 T·m −14%, worse
Xmax12 mm −4%
Sensitivity95.6 dB +0.7
Sica18 S 4 CP
No current priceFs33 Hz −6%
Qts0.35 −8%
Vas225 L +25%, worse
BL23.5 T·m −10%
Xmax11 mm −12%, worse
Sensitivity95.2 dB –
P.AudioP-18N-V3
No current priceFs35 Hz –
Qts0.40 +5%
Vas179.5 L –
BL24.1 T·m −8%
Xmax9 mm −28%, worse
Sensitivity94.7 dB –
P.Audio19NT-115XB
No current priceFs35 Hz –
Qts0.39 –
Vas206 L +14%, worse
BL29 T·m +11%, better
Xmax9.5 mm −24%, worse
Sensitivity95.4 dB +0.5
Sica18 S 4 PL
No current priceFs36 Hz +3%
Qts0.39 –
Vas189 L +5%
BL23.5 T·m −10%
Xmax8 mm −36%, worse
Sensitivity95.3 dB –
RCFLF18N408
No current priceFs30 Hz −14%, better
Qts0.33 −13%, better
Vas193 L +7%
BL25.7 T·m –
Xmax15 mm +20%, better
Sensitivity93.6 dB −1.3
Oberton18XB1301DS
No current priceFs36 Hz –
Qts0.30 −21%, better
Vas172.9 L −4%
BL26.9 T·m –
Xmax12 mm −4%
Sensitivity96 dB +1.1
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann4.9 out of 514 ratings · Checked 7 Oct 2026Read reviews on Thomann
- Parts Express5.0 out of 54 ratings · Checked 7 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 |
|---|---|---|---|---|
Thomann | £345.00, the lowest price | In stock | Visit shop at Thomann | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £357.58 | 3.6% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £357.58 | 3.6% above the lowest price | In stock | Visit shop at JP Leisure |
Blue Aran | £400.36 | 16% above the lowest price | 1 in stock | Visit shop at Blue Aran |
Blue Aran | £400.36 | 16% above the lowest price | 2 in stock | Visit shop at Blue Aran |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £2,847.94 | 726% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure Possible price error · Check price | £2,847.94 | In stock | Visit shop at JP Leisure | |
Audio Video Parts Import VAT and duty may apply | £303.40 | Special order | Visit shop at Audio Video Parts | |
Parts Express Import VAT and duty may apply | £438.52 | 27% above the lowest price | 3 in stock | Visit shop at Parts Express |
1 unusual offer left out of the best price and its history. Every offer is still listed above.
Best price over time
Tracked since 1 Apr
Recent changes
- 4 OctThomann£349.00 → £345.00Down 1.1% from £349.00
- 26 SepThomann£348.00 → £349.00Up 0.3% from £348.00
- 10 SepBlue Aran£235.00 → £400.36Up 70% from £235.00