B&C18PS76
£163.07Fs39 Hz +12%, worse
Qts0.27 –
Vas207 L −15%, better
BL25.8 T·m +7%
Xmax7 mm −20%, worse
Sensitivity98.3 dB +0.6
18-inch LF driver · 18B series · 77 mm voice coil
Oberton 18B500 8Ω
8 Ω · 35–1000 Hz
No current price
- Fs
- 35Hz
- Xmax
- 8.8mm
- SPL
- 98dB
- Pe
- –
- BL
- 24.1T·m
- Vd
- 971cm³
- Qts
- 0.28
- Vas
- 244L
Published graphs
Oberton 18B500 is an 18-inch 8 ohm LF driver. The validated T/S data includes Fs 35 Hz, Qts 0.28, Vas 243.9 L, Xmax 8.8 mm, sensitivity 97.7 dB, plus 971 cm³ Vd and 123 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 35Hz
- Qts
- 0.28
- Qes
- 0.28
- Qms
- 9.2
- Vas
- 243.9L
- Re
- 5.1Ω
- Le
- 1.37mH
Motor and cone
- BL
- 24.1T·m
- Sd
- 1110cm²
- Mms
- 147g
- Xmax
- 8.8mm
- Vd †
- 971cm³
- Voice coil
- 77mm
- Flux density
- 1.27T
Power and response
- Sensitivity †
- 97.7dB
- Manufacturer sensitivity
- 50dB
- Impedance
- 8Ω
- Min. impedance
- 6.4Ω
- Range
- 35–1000Hz
- EBP †
- 123 · Leans vented
Size and mounting
- Diameter
- 461mm
- Cutout
- 417mm
- Bolt circle
- 441mm
- Depth
- 202.4mm
- Weight
- 12.3kg
Other published values
- Cms
- 0.14mm/N
- Power Program
- 1200
Sensitivity shows 97.7 dB, calculated from the T/S values. Oberton publishes 50.0 dB, 47.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Oberton lists
LF · Primary · 18″
- BL
- 24.1T·m
- Fs
- 35Hz
- Le
- 1.37mH
- Re
- 5.1Ω
- Sd
- 1110cm²
- Cms
- 0.14mm/N
- Mms
- 147g
- Qes
- 0.28
- Qms
- 9.2
- Qts
- 0.28
- SPL
- 97.7dB
- Vas
- 243.9L
- Xmax
- 8.8mm
- Impedance
- 8Ω
- Flux density
- 1.27T
- Sensitivity
- 50dB
- Low limit
- 35Hz
- Power Program
- 1200
- Calculated sensitivity †
- 97.7dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 50dB
- Min. impedance
- 6.4Ω
- Voice coil
- 77mm
- Weight
- 12.3kg
- Diameter
- 461mm
- Depth
- 202.4mm
- Cutout
- 417mm
- Bolt circle
- 441mm
02
Compare
Same-size drivers, compared with the 18B500. Clear differences are green when better and red when worse.
This driver18B500
Best price
–
Fs
35 Hz
Qts
0.28
Vas
243.9 L
BL
24.1 T·m
Xmax
8.8 mm
Sensitivity
97.7 dB
Power
–
CelestionFTR18-4080FD
£219.38Fs25 Hz −28%, better
Qts0.29 +4%
Vas408.7 L +68%, worse
BL22.8 T·m −5%
Xmax8.5 mm –
Sensitivity95.4 dB −2.3, worse
FaitalPRO18FH510
£221.89Fs30 Hz −14%, better
Qts0.29 +5%
Vas411.9 L +69%, worse
BL21 T·m −13%, worse
Xmax9.3 mm +6%
Sensitivity97.7 dB –
RCFL18P300
£225.00Fs33 Hz −5%
Qts0.33 +20%, worse
Vas226 L −7%
BL23.5 T·m –
Xmax8 mm −9%
Sensitivity95.8 dB −1.9
B&C18PZB100
£229.42Fs30 Hz −14%, better
Qts0.24 −13%, better
Vas297 L +22%, worse
BL26 T·m +8%
Xmax8 mm −9%
Sensitivity97.1 dB −0.6
B&C18NW100
£234.88Fs31 Hz −11%, better
Qts0.26 −5%
Vas252 L +3%
BL28 T·m +16%, better
Xmax9 mm –
Sensitivity96.5 dB −1.2
Beyma18P1000FEV2S
£249.00Fs33 Hz −5%
Qts0.32 +16%, worse
Vas230 L −6%
BL26.8 T·m +11%, better
Xmax8 mm −9%
Sensitivity96 dB −1.7
FaitalPRO18HP1022
£266.26Fs35 Hz –
Qts0.30 +9%
Vas204.9 L −16%, better
BL28 T·m +16%, better
Xmax9.5 mm +9%
Sensitivity96.6 dB −1.1
Eighteen Sound18LW2400
£272.63Fs35 Hz –
Qts0.31 +13%, worse
Vas230 L −6%
BL25.6 T·m +6%
Xmax9.5 mm +9%
Sensitivity96.9 dB −0.8
Beyma18PW1400FE
£273.68Fs32 Hz −8%
Qts0.27 –
Vas228.9 L −6%
BL29 T·m +21%, better
Xmax10 mm +14%, better
Sensitivity96.3 dB −1.4
Eighteen Sound18LW1400
£274.64Fs31 Hz −11%, better
Qts0.29 +5%
Vas297 L +22%, worse
BL24.7 T·m –
Xmax9 mm –
Sensitivity96.6 dB −1.1
RCFL18P400
£289.00Fs29 Hz −17%, better
Qts0.28 –
Vas340 L +39%, worse
BL24.6 T·m –
Xmax9 mm –
Sensitivity96.6 dB −1.1
Eighteen Sound18LW1251
£291.80Fs35 Hz –
Qts0.27 –
Vas268 L +10%
BL23.6 T·m –
Xmax9 mm –
Sensitivity98.2 dB +0.5
Dayton Audio18SW1200N-8
£301.39Fs32 Hz −8%
Qts0.33 +20%, worse
Vas253.6 L +4%
BL27.6 T·m +15%, better
Xmax9.1 mm +4%
Sensitivity95.8 dB −1.9
Eighteen Sound18NLW9400
£305.62Fs33 Hz −5%
Qts0.26 −5%
Vas268 L +10%
BL26 T·m +8%
Xmax9.5 mm +9%
Sensitivity97.4 dB –
REDCATT18NPW
£347.48Fs36 Hz +3%
Qts0.28 –
Vas211.5 L −13%, better
BL27.3 T·m +13%, better
Xmax4.8 mm −45%, worse
Sensitivity97.5 dB –
RCFLF18N401
£359.21Fs32 Hz −8%
Qts0.26 −5%
Vas257 L +5%
BL27.8 T·m +16%, better
Xmax9 mm –
Sensitivity97 dB −0.7
RCFLF18N451
£375.00Fs31 Hz −11%, better
Qts0.24 −13%, better
Vas245 L –
BL30.2 T·m +26%, better
Xmax9 mm –
Sensitivity96.7 dB −1
Oberton18XB1600V2
£388.58Fs33 Hz −7%
Qts0.28 –
Vas267 L +9%
BL29.6 T·m +23%, better
Xmax12.5 mm +43%, better
Sensitivity97.1 dB −0.6
FaitalPRO18XL2000
£420.00Fs28 Hz −20%, better
Qts0.27 –
Vas232.1 L −5%
BL30.8 T·m +28%, better
Xmax16.3 mm +87%, better
Sensitivity94.6 dB −3.1, worse
FaitalPRO18XL1700
£469.00Fs28 Hz −20%, better
Qts0.28 –
Vas227 L −7%
BL30.5 T·m +27%, better
Xmax16.2 mm +85%, better
Sensitivity94.4 dB −3.3, worse
Oberton18FBR700
No current priceFs36 Hz –
Qts0.27 –
Vas231.3 L −5%
BL25.2 T·m +5%
Xmax8 mm −9%
Sensitivity97.8 dB –
RCFLF18G908
No current priceFs33 Hz −5%
Qts0.29 +5%
Vas268 L +10%
BL24.6 T·m –
Xmax9 mm –
Sensitivity97.1 dB −0.6
FaneCOLOSSUS 18-800N
No current priceFs38 Hz +9%
Qts0.31 +11%, worse
Vas217 L −11%, better
BL24 T·m –
Xmax8 mm −9%
Sensitivity97.7 dB –
Oberton18XB700
No current priceFs36 Hz +3%
Qts0.30 +11%, worse
Vas183.2 L −25%, better
BL26.1 T·m +8%
Xmax9 mm –
Sensitivity96.4 dB −1.3
Eighteen Sound18W2001
No current priceFs37 Hz +6%
Qts0.25 −9%
Vas230 L −6%
BL27.1 T·m +13%, better
Xmax7 mm −20%, worse
Sensitivity98.5 dB +0.8
CIAREPW455
No current priceFs36 Hz +3%
Qts0.24 −13%, better
Vas274 L +12%, worse
BL26.2 T·m +9%
Xmax7.5 mm −14%, worse
Sensitivity99.3 dB +1.6
Precision DevicesPD.184NR1
No current priceFs38 Hz +9%
Qts0.27 –
Vas102 L −58%, better
BL29.5 T·m +23%, better
Xmax8.5 mm –
Sensitivity94.9 dB −2.8, worse
Eighteen Sound18W2000
No current priceFs37 Hz +6%
Qts0.25 −9%
Vas230 L −6%
BL27.1 T·m +13%, better
Xmax–
Sensitivity98.5 dB +0.8
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
No current price found. Pricing may appear after the next vendor refresh.