B&C18RBX100
£226.58 · 22% less, betterFs40 Hz +29%, worse
Qts0.34 +6%
Vas220 L −8%
BL25.1 T·m −9%
Xmax10 mm −13%, worse
Sensitivity98 dB +2.6, better
18-inch LF driver · NDH series · 100 mm voice coil · 1,000 W
CIARE NDH18-4S 8Ω
£291.62
SteadyLean Audio · In stock · All 5 offers
- Fs
- 31Hz
- Xmax
- 11.5mm
- SPL
- 95dB
- Pe
- 1000W
- BL
- 27.7T·m
- Vd
- 1339cm³
- Qts
- 0.32
- Vas
- 239L
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/v1
frequency response
Frequency response
240 plotted pointsMedium confidence2,092 selected pixels of 2,336 - Trace datasheet-response-trace-poc/v1
free air impedance
Impedance response
240 plotted pointsMedium confidence2,188 selected pixels of 2,188
CIARE NDH18-4S is an 18-inch 8 ohm LF driver rated at 1000 W RMS. The validated T/S data includes Fs 31 Hz, Qts 0.32, Vas 239 L, Xmax 11.5 mm, sensitivity 95.4 dB, plus 1339 cm³ Vd and 94 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 £291.62.
The published T/S values agree with each other
Thiele/Small
- Fs
- 31Hz
- Qts
- 0.32
- Qes
- 0.33
- Qms
- 9.8
- Vas
- 239L
- Re
- 6.1Ω
- Le
- 1.90mH
Motor and cone
- BL
- 27.7T·m
- Sd
- 1164cm²
- Mms
- 212g
- Xmax
- 11.5mm
- Vd †
- 1339cm³
- Voice coil
- 100mm
Power and response
- Sensitivity †
- 95.4dB
- Manufacturer sensitivity
- 96.5dB
- Power
- 1000W
- Nominal power
- 1000W
- Impedance
- 8Ω
- EBP †
- 94 · Sealed or vented
Size and mounting
- Diameter
- 388mm
- Cutout
- 354mm
- Bolt circle
- 370mm
- Depth
- 208mm
- Weight
- 8kg
Other published values
- Power Program
- 2000
Sensitivity shows 95.4 dB, calculated from the T/S values. CIARE publishes 96.5 dB, 1.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else CIARE lists
LF · Primary · 18″
- BL
- 27.7T·m
- Fs
- 31Hz
- Le
- 1.90mH
- Re
- 6.1Ω
- Sd
- 1164cm²
- Mms
- 212g
- Qes
- 0.33
- Qms
- 9.8
- Qts
- 0.32
- SPL
- 95.4dB
- Vas
- 239L
- Xmax
- 11.5mm
- Power
- 1000W
- Impedance
- 8Ω
- Sensitivity
- 96.5dB
- Nominal power
- 1000W
- Power Program
- 2000
- Calculated sensitivity †
- 95.4dB
- Manufacturer sensitivity
- 96.5dB
- Voice coil
- 100mm
- Weight
- 8kg
- Diameter
- 388mm
- Depth
- 208mm
- Cutout
- 354mm
- Bolt circle
- 370mm
02
Compare
Same-size drivers, compared with the NDH18-4S. Clear differences are green when better and red when worse.
This driverNDH18-4S
Best price
£291.62
Fs
31 Hz
Qts
0.32
Vas
239 L
BL
27.7 T·m
Xmax
11.5 mm
Sensitivity
95.4 dB
Power
1000 W
B&C18TBW100
£227.94 · 22% less, betterFs33 Hz +6%
Qts0.32 –
Vas181.5 L −24%, better
BL22.8 T·m −18%, worse
Xmax12 mm +4%
Sensitivity94.9 dB −0.5
Beyma18P1000FEV2S
£249.00 · 15% less, betterFs33 Hz +6%
Qts0.32 –
Vas230 L −4%
BL26.8 T·m −3%
Xmax8 mm −30%, worse
Sensitivity96 dB +0.6
FaitalPRO18HP1022
£266.26 · 9% less, betterFs35 Hz +13%, worse
Qts0.30 −6%
Vas204.9 L −14%, better
BL28 T·m –
Xmax9.5 mm −17%, worse
Sensitivity96.6 dB +1.2
Eighteen Sound18LW2400
£272.63 · 7% less, betterFs35 Hz +13%, worse
Qts0.31 −3%
Vas230 L −4%
BL25.6 T·m −8%
Xmax9.5 mm −17%, worse
Sensitivity96.9 dB +1.5
Eighteen Sound18LW2420
£279.00 · 4% lessFs32 Hz +3%
Qts0.33 +3%
Vas252 L +5%
BL25.3 T·m −9%
Xmax10 mm −13%, worse
Sensitivity95.8 dB –
Beyma18LEX1200ND
£279.79 · 4% lessFs36 Hz +16%, worse
Qts0.33 +3%
Vas219 L −8%
BL26.4 T·m −5%
Xmax11 mm −4%
Sensitivity96.7 dB +1.3
Oberton18XB1301DS
£284.15 · 3% lessFs36 Hz +15%, worse
Qts0.30 −6%
Vas172.9 L −28%, better
BL26.9 T·m −3%
Xmax12 mm +4%
Sensitivity96 dB +0.6
RCFLF18X401
£289.00 · Same priceFs30 Hz −3%
Qts0.30 −6%
Vas274 L +15%, worse
BL26.5 T·m −4%
Xmax12 mm +4%
Sensitivity95.8 dB –
Dayton Audio18SW1200N-8
£301.39 · 3% moreFs32 Hz +3%
Qts0.33 +3%
Vas253.6 L +6%
BL27.6 T·m –
Xmax9.1 mm −21%, worse
Sensitivity95.8 dB –
RCFLF18N405
£325.54 · 12% more, worseFs30 Hz −3%
Qts0.32 –
Vas227 L −5%
BL26.5 T·m −4%
Xmax14 mm +22%, better
Sensitivity94.6 dB −0.8
SB AudienceNERO-18SW1100D
£334.88 · 15% more, worseFs36 Hz +16%, worse
Qts0.33 +3%
Vas153.1 L −36%, better
BL30.9 T·m +12%, better
Xmax12.2 mm +6%
Sensitivity95.3 dB –
BMS18S450
£345.00 · 18% more, worseFs29 Hz −6%
Qts0.31 −3%
Vas281 L +18%, worse
BL26.5 T·m −4%
Xmax12 mm +4%
Sensitivity95.3 dB –
Oberton18XB1600V2
£388.58 · 33% more, worseFs33 Hz +5%
Qts0.28 −13%, better
Vas267 L +12%, worse
BL29.6 T·m +7%
Xmax12.5 mm +9%
Sensitivity97.1 dB +1.7
Precision DevicesPD.1852/2
£397.00 · 36% more, worseFs42 Hz +35%, worse
Qts0.33 +3%
Vas120.4 L −50%, better
BL30.5 T·m +10%, better
Xmax12 mm +4%
Sensitivity96.2 dB +0.8
CelestionCF18VJD
£399.00 · 37% more, worseFs35 Hz +11%, worse
Qts0.31 −3%
Vas145.8 L −39%, better
BL32.6 T·m +18%, better
Xmax12 mm +4%
Sensitivity94.6 dB −0.8
FaitalPRO18XL1600
£399.95 · 37% more, worseFs32 Hz +3%
Qts0.36 +12%, worse
Vas211.4 L −12%, better
BL26.7 T·m −4%
Xmax12.9 mm +12%, better
Sensitivity94.8 dB −0.6
Dayton AudioRSS460HO-4
£442.94 · 52% more, worseFs19 Hz −39%, better
Qts0.32 –
Vas272 L +14%, worse
BL23.4 T·m −16%, worse
Xmax12.8 mm +11%, better
Sensitivity89.2 dB −6.2, worse
Sica18 K 4 PL
£447.92 · 54% more, worseFs37 Hz +19%, worse
Qts0.32 –
Vas201 L −16%, better
BL26.8 T·m −3%
Xmax6.5 mm −43%, worse
Sensitivity96.6 dB +1.2
BMS18N850V2
£457.13 · 57% more, worseFs30 Hz −4%
Qts0.33 +3%
Vas243 L –
BL25.4 T·m −8%
Xmax12 mm +4%
Sensitivity94.7 dB −0.7
Eighteen Sound18NLW9000
£550.00 · 89% more, worseFs34 Hz +10%
Qts0.31 −3%
Vas206 L −14%, better
BL28 T·m –
Xmax14 mm +22%, better
Sensitivity96.1 dB +0.7
B&C18HTX100
£809.86 · 178% more, worseFs44 Hz +42%, worse
Qts0.32 –
Vas173 L −28%, better
BL26.3 T·m −5%
Xmax13 mm +13%, better
Sensitivity98.4 dB +3, better
No photo
RCFLF18Y402
No current priceFs30 Hz −3%
Qts0.30 −6%
Vas274 L +15%, worse
BL26.5 T·m −4%
Xmax12 mm +4%
Sensitivity95.8 dB –
Oberton18XB1201
No current priceFs38 Hz +23%, worse
Qts0.32 –
Vas159.4 L −33%, better
BL26.7 T·m −4%
Xmax10.5 mm −9%
Sensitivity96.3 dB +0.9
No photo
FaneIMPERIUM 18NDXL
No current priceFs33 Hz +6%
Qts0.29 −8%
Vas203 L −15%, better
BL29.4 T·m +6%
Xmax12 mm +4%
Sensitivity95.9 dB +0.5
Oberton18NXB700
No current priceFs36 Hz +17%, worse
Qts0.31 –
Vas155.5 L −35%, better
BL27.8 T·m –
Xmax9 mm −22%, worse
Sensitivity95.6 dB –
Oberton18NXB1600
No current priceFs32 Hz +4%
Qts0.30 −5%
Vas173.1 L −28%, better
BL29.6 T·m +7%
Xmax13.5 mm +17%, better
Sensitivity94.5 dB −0.9
Oberton18NXB1200
No current priceFs36 Hz +16%, worse
Qts0.28 −12%, better
Vas159.6 L −33%, better
BL29.4 T·m +6%
Xmax11.5 mm –
Sensitivity96 dB +0.6
Sica18 S 4 CP
No current priceFs33 Hz +6%
Qts0.35 +9%
Vas225 L −6%
BL23.5 T·m −15%, worse
Xmax11 mm −4%
Sensitivity95.2 dB –
Oberton18XB700
No current priceFs36 Hz +16%, worse
Qts0.30 −5%
Vas183.2 L −23%, better
BL26.1 T·m −6%
Xmax9 mm −22%, worse
Sensitivity96.4 dB +1
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 |
|---|---|---|---|---|
Lean Audio | £291.62, the lowest price | In stock | Visit shop at Lean Audio | |
Lean Audio | £299.95 | 2.9% above the lowest price | Back order | Visit shop at Lean Audio |
Lean Business | £299.95 | 2.9% above the lowest price | Stock not listed | Visit shop at Lean Business |
Best price over time
Tracked since 1 Apr