- Net volume
- 150L
- Tuning
- 35Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
18-inch LF driver · 18IPAL series · 116 mm voice coil · 1,700 W
B&C 18IPAL 2Ω
2 Ω · 32–1000 Hz
£691.79
SteadyJP Leisure · In stock · All 4 offers
- Fs
- 32Hz
- Xmax
- 20mm
- SPL
- 98dB
- Pe
- 1700W
- BL
- 24.5T·m
- Vd
- 2420cm³
- Qts
- 0.14
- Vas
- 164L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 2 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v2
free-air SPL
Frequency response
240 plotted pointsSource file SHA-256 74d125777417…Medium confidence12,082 selected pixels of 12,683 - Trace datasheet-response-trace-poc/v2
free-air impedance
Impedance response
240 plotted pointsSource file SHA-256 74d125777417…Medium confidence5,531 selected pixels of 6,549
Published graphs
B&C 18IPAL is an 18-inch 2 ohm LF driver rated at 1700 W RMS. The validated T/S data includes Fs 32 Hz, Qts 0.14, Vas 164 L, Xmax 20 mm, sensitivity 97.9 dB, plus 2420 cm³ Vd and 229 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 £691.79.
The published T/S values agree with each other
Thiele/Small
- Fs
- 32Hz
- Qts
- 0.14
- Qes
- 0.14
- Qms
- 4.2
- Vas
- 164L
- Re
- 1.3Ω
- Le
- 0.65mH
Motor and cone
- BL
- 24.5T·m
- Sd
- 1210cm²
- Mms
- 330g
- Xmax
- 20mm
- Vd †
- 2420cm³
- Voice coil
- 116mm
- Flux density
- 1.50T
Power and response
- Sensitivity †
- 97.9dB
- Manufacturer sensitivity
- 97dB
- Power
- 1700W
- Nominal power
- 1700W
- Impedance
- 2Ω
- Min. impedance
- 2.1Ω
- Range
- 32–1000Hz
- EBP †
- 229 · Leans vented
Size and mounting
- Diameter
- 460mm
- Cutout
- 425mm
- Bolt circle
- 443mm
- Depth
- 261mm
- Weight
- 15.3kg
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 24.5T·m
- Fs
- 32Hz
- Le
- 0.65mH
- Re
- 1.3Ω
- Sd
- 1210cm²
- Mms
- 330g
- Qes
- 0.14
- Qms
- 4.2
- Qts
- 0.14
- SPL
- 97.9dB
- Vas
- 164L
- Xmax
- 20mm
- Power
- 1700W
- Impedance
- 2Ω
- Flux density
- 1.50T
- Sensitivity
- 97dB
- Low limit
- 32Hz
- Nominal power
- 1700W
- Calculated sensitivity †
- 97.9dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 97dB
- Min. impedance
- 2.1Ω
- Voice coil
- 116mm
- Weight
- 15.3kg
- Diameter
- 460mm
- Depth
- 261mm
- Cutout
- 425mm
- Bolt circle
- 443mm
- Bl
- 24.5 Tm
- Fs
- 32 Hz
- Le
- 0.65 mH
- Re
- 1.3 Ω
- Sd
- 1210 cm² (187.6 in²)
- Ebp
- 229 Hz
- Mms
- 330 g
- Qes
- 0.14
- Qms
- 4.2
- Qts
- 0.14
- Vas
- 164 dm³ (5.8 ft³)
- Η0
- 3.3 %
- Cone
- RCK18IPALM
- Xmax
- 20 mm
- Xvar
- 15 mm
- Depth
- 261 mm (10.28 in)
- Spider
- Double Silicone
- Cone shape
- Radial
- Net weight
- 15.35 kg (33.84 lb)
- Pole design
- T-Pole
- Sensitivity
- 97 dB
- Flux density
- 1.5 T
- Shipping box
- 570x570x320 mm (22.44x22.44x12.60 in)
- Winding depth
- 44 mm (1.7 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 32 Hz - 1000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 17.65 kg (38.91 lb)
- Nominal diameter
- 460 mm (18 in)
- Overall diameter
- 460 mm (18 in)
- Winding material
- Aluminium
- Minimum impedance
- 2.1 Ω
- Nominal impedance
- 2 Ω
- Magnetic gap depth
- 12 mm (0.47 in)
- Recommended tuning
- 35 Hz
- Voice coil diameter
- 116 mm (4.5 in)
- Bolt circle diameter
- 443 mm (17.44 in)
- Recommended enclosure
- 150 dm³ (5.3 ft³)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Baffle cutout diameter
- 425 mm (16.73 in)
- Nominal power handling
- 1700 W
- Continuous power handling
- 3400 W
- Flange and gasket thickness
- 16 mm (0.63 in)
- Air volume occupied by driver
- 10.5 dm³ (0.37 ft³)
B&C’s suggested box
From B&C’s 18IPAL page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 18IPAL. Clear differences are green when better and red when worse.
This driver18IPAL
Best price
£691.79
Fs
32 Hz
Qts
0.14
Vas
164 L
BL
24.5 T·m
Xmax
20 mm
Sensitivity
97.9 dB
Power
1700 W
B&C18PZB100
£232.07 · 66% less, betterFs38 Hz +19%, worse
Qts0.28 +100%, worse
Vas164 L –
BL25 T·m –
Xmax8 mm −60%, worse
Sensitivity96.9 dB −1
CelestionCF1840JD
£239.00 · 65% less, betterFs37 Hz +16%, worse
Qts0.40 +184%, worse
Vas155 L −5%
BL24.8 T·m –
Xmax12.5 mm −38%, worse
Sensitivity94.6 dB −3.3, worse
FaitalPRO18HP1030
£269.00 · 61% less, betterFs35 Hz +9%
Qts0.41 +193%, worse
Vas185.5 L +13%, worse
BL24.3 T·m –
Xmax12.4 mm −38%, worse
Sensitivity94.7 dB −3.2, worse
MonacorCF1840JD/4
£287.12 · 58% less, betterFs37 Hz +16%, worse
Qts0.40 +184%, worse
Vas155 L −5%
BL24.8 T·m –
Xmax12.5 mm −38%, worse
Sensitivity94.6 dB −3.3, worse
MonacorCF1840JD/8
£287.12 · 58% less, betterFs37 Hz +16%, worse
Qts0.40 +184%, worse
Vas155 L −5%
BL24.8 T·m –
Xmax12.5 mm −38%, worse
Sensitivity94.6 dB −3.3, worse
FaitalPRO18HP1042
£289.66 · 58% less, betterFs38 Hz +19%, worse
Qts0.41 +193%, worse
Vas191.9 L +17%, worse
BL24.5 T·m –
Xmax9 mm −55%, worse
Sensitivity95.9 dB −2, worse
SB AudienceROSSO-18SW1000D
£313.33 · 55% less, betterFs35 Hz +9%
Qts0.46 +229%, worse
Vas164.3 L –
BL25.8 T·m +5%
Xmax13.7 mm −32%, worse
Sensitivity93.6 dB −4.3, worse
Eighteen Sound18TLW3000
£331.58 · 52% less, betterFs33 Hz +3%
Qts0.41 +193%, worse
Vas185 L +13%, worse
BL24.5 T·m –
Xmax12 mm −40%, worse
Sensitivity94 dB −3.9, worse
B&C18DS100
£350.64 · 49% less, betterFs32 Hz –
Qts0.24 +71%, worse
Vas157 L −4%
BL24.3 T·m –
Xmax14 mm −30%, worse
Sensitivity95.3 dB −2.6, worse
Sica18 PF 4
£359.91 · 48% less, betterFs38 Hz +19%, worse
Qts0.43 +207%, worse
Vas147.3 L −10%, better
BL24.6 T·m –
Xmax8 mm −60%, worse
Sensitivity94.4 dB −3.5, worse
SB AudienceNERO-18SW1900D
£398.03 · 42% less, betterFs34 Hz +6%
Qts0.42 +200%, worse
Vas157.9 L −4%
BL28.5 T·m +16%, better
Xmax17.5 mm −13%, worse
Sensitivity93.6 dB −4.3, worse
FaitalPRO18XL1800
£425.00 · 39% less, betterFs29 Hz −9%
Qts0.40 +186%, worse
Vas215.5 L +31%, worse
BL25.4 T·m +4%
Xmax20.2 mm –
Sensitivity93 dB −4.9, worse
No photo
Precision DevicesPD.1845-2N
£427.00 · 38% less, betterFs35 Hz +9%
Qts0.39 +177%, worse
Vas157 L −4%
BL27 T·m +10%, better
Xmax18 mm −10%, worse
Sensitivity94.3 dB −3.6, worse
B&C18DS115
£439.57 · 36% less, betterFs30 Hz −6%
Qts0.17 +21%, worse
Vas177 L +8%
BL34 T·m +39%, better
Xmax16.5 mm −18%, worse
Sensitivity96.3 dB −1.6
Eighteen Sound18NLS4000
£486.84 · 30% less, betterFs27 Hz −16%, better
Qts0.35 +150%, worse
Vas168 L –
BL24.2 T·m –
Xmax22.3 mm +12%, better
Sensitivity91.7 dB −6.2, worse
EminenceNSW4018-8
£527.89 · 24% less, betterFs36 Hz +13%, worse
Qts0.38 +171%, worse
Vas164.5 L –
BL28.2 T·m +15%, better
Xmax15.2 mm −24%, worse
Sensitivity95 dB −2.9, worse
Eighteen Sound18NTLW5000
£550.00 · 20% less, betterFs32 Hz –
Qts0.30 +114%, worse
Vas165 L –
BL25 T·m –
Xmax17.5 mm −13%, worse
Sensitivity94.4 dB −3.5, worse
REDCATT181XR
£550.48 · 20% less, betterFs30 Hz −6%
Qts0.23 +64%, worse
Vas195 L +19%, worse
BL28.3 T·m +16%, better
Xmax17 mm −15%, worse
Sensitivity95.4 dB −2.5, worse
BMS18N862
£575.08 · 17% less, betterFs25 Hz −22%, better
Qts0.34 +143%, worse
Vas312 L +90%, worse
BL25.5 T·m +4%
Xmax19 mm −5%
Sensitivity93.4 dB −4.5, worse
Eighteen Sound18ID200
£723.22 · 5% moreFs29 Hz −9%
Qts0.17 +21%, worse
Vas136 L −17%, better
BL24.4 T·m –
Xmax18 mm −10%, worse
Sensitivity94.7 dB −3.2, worse
Eighteen Sound18IDSDS
No current priceFs29 Hz −9%
Qts0.17 +21%, worse
Vas136 L −17%, better
BL24.4 T·m –
Xmax18 mm −10%, worse
Sensitivity94.7 dB −3.2, worse
No photo
Precision DevicesPD.1845-1N
No current priceFs34 Hz +7%
Qts0.32 +131%, worse
Vas179.0 L +9%
BL26.4 T·m +8%
Xmax16 mm −20%, worse
Sensitivity95.3 dB −2.6, worse
P.Audio18NT-100XB
No current priceFs35 Hz +9%
Qts0.41 +193%, worse
Vas171.3 L +4%
BL24.6 T·m –
Xmax7 mm −65%, worse
Sensitivity94.4 dB −3.5, worse
CelestionFTR18-4080FDX
No current priceFs37 Hz +17%, worse
Qts0.41 +195%, worse
Vas160.7 L –
BL25.1 T·m –
Xmax6 mm −70%, worse
Sensitivity94.9 dB −3, worse
P.AudioP-18N-V3
No current priceFs35 Hz +9%
Qts0.40 +186%, worse
Vas179.5 L +9%
BL24.1 T·m –
Xmax9 mm −55%, worse
Sensitivity94.7 dB −3.2, worse
BMS18N860
No current priceFs25 Hz −22%, better
Qts0.37 +164%, worse
Vas304 L +85%, worse
BL24.9 T·m –
Xmax19 mm −5%
Sensitivity92.7 dB −5.2, worse
CelestionERPROX18
No current priceFs35 Hz +9%
Qts0.38 +171%, worse
Vas188.9 L +15%, worse
BL24.4 T·m –
Xmax9.5 mm −53%, worse
Sensitivity94.7 dB −3.2, worse
RCFLF18N408
No current priceFs30 Hz −6%
Qts0.33 +136%, worse
Vas193 L +18%, worse
BL25.7 T·m +5%
Xmax15 mm −25%, worse
Sensitivity93.6 dB −4.3, worse
PeerlessFCP-1840R02-08
No current priceFs39 Hz +22%, worse
Qts0.43 +207%, worse
Vas156 L −5%
BL26.2 T·m +7%
Xmax13.5 mm −33%, worse
Sensitivity95.2 dB −2.7, worse
P.Audio18NT-100SW
No current priceFs35 Hz +9%
Qts0.48 +243%, worse
Vas144.6 L −12%, better
BL25.2 T·m +3%
Xmax9 mm −55%, worse
Sensitivity93 dB −4.9, worse
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 | £691.79, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £691.79 | In stock | Visit shop at JP Leisure | |
Blue Aran 5-7 weeks | £788.11 | 14% above the lowest price | 21 in stock | Visit shop at Blue Aran |
Audio Video Parts Import VAT and duty may apply | £606.12 | Special order | Visit shop at Audio Video Parts |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£690.85 → £691.79Up 0.1% from £690.85
- 23 JunBlue Aran£789.25 → £788.11Down 0.1% from £789.25
- 5 JunBlue Aran£761.30 → £789.25Up 3.7% from £761.30