B&C design · archived
S18H
18" 2400W Horn Loaded Subwoofer Enclosure - 18" Subwoofer
- Drivers
- 18TBX100, 8 Ω
- Power
- 2,400 W
18-inch LF driver · 18TBX series · 100 mm voice coil · 1,200 W
B&C 18TBX100 8Ω
35–1000 Hz
- Fs
- 34Hz
- Xmax
- 9mm
- SPL
- 96dB
- Pe
- 1200W
- BL
- 25.5T·m
- Vd
- 1089cm³
- Qts
- 0.35
- Vas
- 212L
Published graphs
B&C 18TBX100 is an 18-inch 8 ohm LF driver rated at 1200 W RMS. The validated T/S data includes Fs 34 Hz, Qts 0.35, Vas 212 L, Xmax 9 mm, sensitivity 95.6 dB, plus 1089 cm³ Vd and 92 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 £186.94.
The published T/S values agree with each other
Thiele/Small
- Fs
- 34Hz
- Qts
- 0.35
- Qes
- 0.37
- Qms
- 7.2
- Vas
- 212L
- Re
- 5.1Ω
- Le
- 1.60mH
Motor and cone
- BL
- 25.5T·m
- Sd
- 1210cm²
- Mms
- 209g
- Xmax
- 9mm
- Vd †
- 1089cm³
- Voice coil
- 100mm
- Flux density
- 1.10T
Power and response
- Sensitivity †
- 95.6dB
- Manufacturer sensitivity
- 97dB
- Power
- 1200W
- Nominal power
- 1200W
- Impedance
- 8Ω
- Min. impedance
- 6.2Ω
- Range
- 35–1000Hz
- EBP †
- 92 · Sealed or vented
Size and mounting
- Diameter
- 460mm
- Cutout
- 422mm
- Bolt circle
- 440mm
- Depth
- 209mm
- Weight
- 12.7kg
Sensitivity shows 95.6 dB, calculated from the T/S values. B&C publishes 97.0 dB, 1.4 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 25.5T·m
- Fs
- 34Hz
- Le
- 1.60mH
- Re
- 5.1Ω
- Sd
- 1210cm²
- Mms
- 209g
- Qes
- 0.37
- Qms
- 7.2
- Qts
- 0.35
- SPL
- 95.6dB
- Vas
- 212L
- Xmax
- 9mm
- Power
- 1200W
- Impedance
- 8Ω
- Flux density
- 1.10T
- Sensitivity
- 97dB
- Low limit
- 35Hz
- Nominal power
- 1200W
- Calculated sensitivity †
- 95.6dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 97dB
- Min. impedance
- 6.2Ω
- Voice coil
- 100mm
- Weight
- 12.7kg
- Diameter
- 460mm
- Depth
- 209mm
- Cutout
- 422mm
- Bolt circle
- 440mm
- Bl
- 25.5 Tm
- Fs
- 34 Hz
- Le
- 1.6 mH
- Re
- 5.1 Ω
- Sd
- 1210 cm² (187.6 in²)
- Ebp
- 92 Hz
- Mms
- 209 g
- Qes
- 0.37
- Qms
- 7.2
- Qts
- 0.35
- Vas
- 212 dm³ (7.5 ft³)
- Η0
- 2.2 %
- Cone
- RCK18TBX1008
- Xmax
- 9 mm
- Xvar
- 11 mm
- Depth
- 209 mm (8.2 in)
- Spider
- Double Silicone
- Cone shape
- Radial
- Net weight
- 12.7 kg (28 lb)
- Pole design
- T-Pole
- Sensitivity
- 97 dB
- Flux density
- 1.1 T
- Shipping box
- 500x495x275 mm (19.69x19.49x10.83 in)
- Winding depth
- 25 mm (1 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 35 Hz - 1000 Hz
- Magnet material
- Ferrite
- Shipping weight
- 14.3 kg (31.53 lb)
- Nominal diameter
- 460 mm (18 in)
- Overall diameter
- 460 mm (18 in)
- Winding material
- Copper
- Minimum impedance
- 6.2 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 12 mm (0.5 in)
- Recommended tuning
- 34 Hz
- Voice coil diameter
- 100 mm (4 in)
- Bolt circle diameter
- 440 mm (17.3 in)
- Recommended enclosure
- 200 dm³ (7.06 ft³)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Baffle cutout diameter
- 422 mm (16.6 in)
- Nominal power handling
- 1200 W
- Continuous power handling
- 2400 W
- Flange and gasket thickness
- 16 mm (0.63 in)
- Air volume occupied by driver
- 10.5 dm³ (0.37 ft³)
02
Designs
Cabinets for the 18TBX100: a design and a suggested box from B&C, and plans builders have published.
All 18TBX100 designsHow we find designsB&C’s design
From the maker, with plans to download
B&C’s suggested box
From B&C’s 18TBX100 page
- Net volume
- 200L
- Tuning
- 34Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 18TBX100. Clear differences are green when better and red when worse.
This driver18TBX100
Best price
£186.94
Fs
34 Hz
Qts
0.35
Vas
212 L
BL
25.5 T·m
Xmax
9 mm
Sensitivity
95.6 dB
Power
1200 W
B&C18PZW100
£223.60 · 20% more, worseFs37 Hz +9%
Qts0.36 –
Vas186 L −12%, better
BL25.5 T·m –
Xmax8 mm −11%, worse
Sensitivity96 dB –
RCFL18P300
£225.00 · 20% more, worseFs33 Hz –
Qts0.33 −6%
Vas226 L +7%
BL23.5 T·m −8%
Xmax8 mm −11%, worse
Sensitivity95.8 dB –
FaitalPRO18HP1060
£245.81 · 31% more, worseFs35 Hz –
Qts0.37 +6%
Vas200.3 L −6%
BL24.8 T·m –
Xmax12.4 mm +38%, better
Sensitivity95.6 dB –
Beyma18P1000FEV2S
£249.00 · 33% more, worseFs33 Hz –
Qts0.32 −9%
Vas230 L +8%
BL26.8 T·m +5%
Xmax8 mm −11%, worse
Sensitivity96 dB –
B&C18NBX100
£265.95 · 42% more, worseFs35 Hz –
Qts0.38 +9%
Vas198 L −7%
BL24.8 T·m –
Xmax10 mm +11%, better
Sensitivity95.3 dB –
FaitalPRO18HP1022
£269.33 · 44% more, worseFs35 Hz –
Qts0.30 −14%, better
Vas204.9 L −3%
BL28 T·m +10%
Xmax9.5 mm +6%
Sensitivity96.6 dB +1
Eighteen Sound18LW2400
£272.63 · 46% more, worseFs35 Hz –
Qts0.31 −11%, better
Vas230 L +8%
BL25.6 T·m –
Xmax9.5 mm +6%
Sensitivity96.9 dB +1.3
Beyma18LEX1200ND
£278.64 · 49% more, worseFs36 Hz +6%
Qts0.33 −6%
Vas219 L +3%
BL26.4 T·m +4%
Xmax11 mm +22%, better
Sensitivity96.7 dB +1.1
Eighteen Sound18LW2420
£279.00 · 49% more, worseFs32 Hz −6%
Qts0.33 −6%
Vas252 L +19%, worse
BL25.3 T·m –
Xmax10 mm +11%, better
Sensitivity95.8 dB –
FaneCOLOSSUS 18SB
£284.00 · 52% more, worseFs36 Hz +6%
Qts0.35 –
Vas199 L −6%
BL24 T·m −6%
Xmax8.3 mm −8%
Sensitivity96.1 dB +0.5
FaitalPRO18HP1042
£289.66 · 55% more, worseFs38 Hz +12%, worse
Qts0.41 +17%, worse
Vas191.9 L −9%
BL24.5 T·m −4%
Xmax9 mm –
Sensitivity95.9 dB –
Dayton Audio18SW1200N-8
£304.86 · 63% more, worseFs32 Hz −6%
Qts0.33 −6%
Vas253.6 L +20%, worse
BL27.6 T·m +8%
Xmax9.1 mm –
Sensitivity95.8 dB –
BMS18S430V2
£316.72 · 69% more, worseFs31 Hz −9%
Qts0.34 –
Vas262 L +24%, worse
BL23.5 T·m −8%
Xmax8 mm −11%, worse
Sensitivity95.4 dB –
BMS18N830V2
£347.59 · 86% more, worseFs31 Hz −9%
Qts0.37 +6%
Vas262 L +24%, worse
BL22.4 T·m −12%, worse
Xmax8 mm −11%, worse
Sensitivity95 dB −0.6
FaitalPRO18XL1600
£399.95 · 114% more, worseFs32 Hz −6%
Qts0.36 –
Vas211.4 L –
BL26.7 T·m +5%
Xmax12.9 mm +44%, better
Sensitivity94.8 dB −0.8
FaneCOLOSSUS 18XB
No current priceFs33 Hz –
Qts0.34 −4%
Vas236 L +11%, worse
BL25.9 T·m –
Xmax7.5 mm −17%, worse
Sensitivity95.8 dB –
Sica18 PFS 4
No current priceFs29 Hz −16%, better
Qts0.37 +6%
Vas245.9 L +16%, worse
BL24.6 T·m −4%
Xmax9.5 mm +6%
Sensitivity93.5 dB −2.1, worse
REDCATT186FIND
No current priceFs33 Hz –
Qts0.35 –
Vas174.2 L −18%, better
BL30.2 T·m +18%, better
Xmax8.4 mm −7%
Sensitivity94.4 dB −1.2
Oberton18XB700
No current priceFs36 Hz +6%
Qts0.30 −13%, better
Vas183.2 L −14%, better
BL26.1 T·m –
Xmax9 mm –
Sensitivity96.4 dB +0.8
Sica18 S 4 CP
No current priceFs33 Hz –
Qts0.35 –
Vas225 L +6%
BL23.5 T·m −8%
Xmax11 mm +22%, better
Sensitivity95.2 dB –
CelestionERPROX18
No current priceFs35 Hz –
Qts0.38 +8%
Vas188.9 L −11%, better
BL24.4 T·m −4%
Xmax9.5 mm +6%
Sensitivity94.7 dB −0.9
P.AudioP-18N-V3
No current priceFs35 Hz –
Qts0.40 +14%, worse
Vas179.5 L −15%, better
BL24.1 T·m −5%
Xmax9 mm –
Sensitivity94.7 dB −0.9
P.Audio19NT-115XB
No current priceFs35 Hz –
Qts0.39 +11%, worse
Vas206 L –
BL29 T·m +14%, better
Xmax9.5 mm +6%
Sensitivity95.4 dB –
Precision DevicesPD.184C002
No current priceFs40 Hz +18%, worse
Qts0.34 –
Vas268 L +26%, worse
BL21 T·m −18%, worse
Xmax9.7 mm +8%
Sensitivity98.8 dB +3.2, better
Oberton18B450
No current priceFs34 Hz –
Qts0.34 –
Vas241.6 L +14%, worse
BL22.1 T·m −13%, worse
Xmax7.3 mm −19%, worse
Sensitivity96.4 dB +0.8
Oberton18NXB700
No current priceFs36 Hz +7%
Qts0.31 −11%, better
Vas155.5 L −27%, better
BL27.8 T·m +9%
Xmax9 mm –
Sensitivity95.6 dB –
BMS18N840
No current priceFs30 Hz −11%, better
Qts0.37 +6%
Vas261 L +23%, worse
BL23 T·m −10%
Xmax10 mm +11%, better
Sensitivity94.6 dB −1
RCFLF18N408
No current priceFs30 Hz −12%, better
Qts0.33 −6%
Vas193 L −9%
BL25.7 T·m –
Xmax15 mm +67%, better
Sensitivity93.6 dB −2, worse
CelestionCF1840H
No current priceFs39 Hz +13%, worse
Qts0.35 –
Vas196.7 L −7%
BL17.4 T·m −32%, worse
Xmax8 mm −11%, worse
Sensitivity96.7 dB +1.1
P.Audio18BM-1000S
No current priceFs35 Hz –
Qts0.40 +14%, worse
Vas212.1 L –
BL23.8 T·m −7%
Xmax8 mm −11%, worse
Sensitivity95.3 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann4.9 out of 538 ratings · Checked 9 Oct 2026Read reviews on Thomann
- Parts Express4.9 out of 517 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 | £238.99, the lowest price | 8+ in stock | Visit shop at Blue Aran | |
Blue Aran 5-7 weeks | £238.99 | 184 in stock | Visit shop at Blue Aran | |
Thomann | £239.00 | In stock | Visit shop at Thomann | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £239.94 | 0.4% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £239.94 | 0.4% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £239.94 | 0.4% above the lowest price | In stock | Visit shop at JP Leisure |
JP Leisure | £239.94 | 0.4% above the lowest price | In stock | Visit shop at JP Leisure |
Lean Business | £334.28 | 40% above the lowest price | Stock not listed | Visit shop at Lean Business |
Audio Video Parts Import VAT and duty may apply | £186.94 | In stock | Visit shop at Audio Video Parts | |
Parts Express Import VAT and duty may apply | £302.79 | 27% above the lowest price | 16 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 7 OctBlue Aran£244.00 → £238.99Down 2.1% from £244.00
- 4 OctThomann£244.00 → £239.00Down 2.0% from £244.00
- 12 SepBlue Aran£238.99 → £244.00Up 2.1% from £238.99