REDCATT183FIND
£121.41 · 48% less, betterFs32 Hz +14%, worse
Qts0.42 +45%, worse
Vas329.5 L −25%, better
BL21.1 T·m −4%
Xmax5.9 mm −3%
Sensitivity96 dB −1.1
18-inch LF driver · SIGMA PRO series · 650 W
Eminence SIGMA PRO-18A 8Ω
8 Ω · 41–2400 Hz
No price for delivery to the UK
- Fs
- 28Hz
- Xmax
- 6.1mm
- SPL
- 97dB
- Pe
- 650W
- BL
- 22.1T·m
- Vd
- 695cm³
- Qts
- 0.29
- Vas
- 441L
Eminence SIGMA PRO-18A is an 18-inch 8 ohm LF driver rated at 650 W RMS. The validated T/S data includes Fs 28 Hz, Qts 0.29, Vas 441.2 L, Xmax 6.1 mm, sensitivity 97.1 dB, plus 695 cm³ Vd and 93 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 £234.45.
The published T/S values agree with each other
Thiele/Small
- Fs
- 28Hz
- Qts
- 0.29
- Qes
- 0.30
- Qms
- 8.3
- Vas
- 441.2L
- Re
- 6.3Ω
- Le
- 1.90mH
Motor and cone
- BL
- 22.1T·m
- Sd
- 1140cm²
- Mms
- 130g
- Xmax
- 6.1mm
- Vd †
- 695cm³
Power and response
- Sensitivity †
- 97.1dB
- Manufacturer sensitivity
- 99dB
- Power
- 650W
- Impedance
- 8Ω
- Range
- 41–2400Hz
- EBP †
- 93 · Sealed or vented
Size and mounting
- Diameter
- 457.2mm
- Cutout
- 420.6mm
- Bolt circle
- 438.1mm
- Depth
- 207.0mm
- Weight
- 11.1kg
Other published values
- Cms
- 0.24mm/N
- Xmech
- 18
- Power Program
- 1300
Sensitivity shows 97.1 dB, calculated from the T/S values. Eminence publishes 99.0 dB, 1.9 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eminence lists
LF · Primary · 18″
- BL
- 22.1T·m
- Fs
- 28Hz
- Le
- 1.90mH
- Re
- 6.3Ω
- Sd
- 1140cm²
- Cms
- 0.24mm/N
- Mms
- 130g
- Qes
- 0.30
- Qms
- 8.3
- Qts
- 0.29
- SPL
- 97.1dB
- Vas
- 441.2L
- Xmax
- 6.1mm
- Xmech
- 18
- Power
- 650W
- Impedance
- 8Ω
- Sensitivity
- 99dB
- Low limit
- 41Hz
- Power Program
- 1300
- Calculated sensitivity †
- 97.1dB
- High limit
- 2400Hz
- Manufacturer sensitivity
- 99dB
- Weight
- 11.1kg
- Diameter
- 457.2mm
- Depth
- 207.0mm
- Cutout
- 420.6mm
- Bolt circle
- 438.1mm
02
Compare
Same-size drivers, compared with the SIGMA PRO-18A. Clear differences are green when better and red when worse.
This driverSIGMA PRO-18A
Best price
£234.45
Fs
28 Hz
Qts
0.29
Vas
441.2 L
BL
22.1 T·m
Xmax
6.1 mm
Sensitivity
97.1 dB
Power
650 W
Dayton AudioPA460-8
£130.89 · 44% less, betterFs28 Hz –
Qts0.33 +14%, worse
Vas402 L −9%
BL22.3 T·m –
Xmax6 mm –
Sensitivity96.3 dB −0.8
B&C18PS76
£163.07 · 30% less, betterFs39 Hz +39%, worse
Qts0.27 −7%
Vas207 L −53%, better
BL25.8 T·m +17%, better
Xmax7 mm +15%, better
Sensitivity98.3 dB +1.2
FaitalPRO18FH500
£213.51 · 9% less, betterFs30 Hz +7%
Qts0.35 +21%, worse
Vas417.9 L −5%
BL19 T·m −14%, worse
Xmax9.3 mm +52%, better
Sensitivity97 dB –
CelestionFTR18-4080FD
£219.38 · 6% less, betterFs25 Hz −10%, better
Qts0.29 –
Vas408.7 L −7%
BL22.8 T·m +3%
Xmax8.5 mm +39%, better
Sensitivity95.4 dB −1.7
FaitalPRO18FH510
£221.89 · 5% less, betterFs30 Hz +7%
Qts0.29 –
Vas411.9 L −7%
BL21 T·m −5%
Xmax9.3 mm +52%, better
Sensitivity97.7 dB +0.6
RCFLF18G401
£252.42 · 8% more, worseFs33 Hz +18%, worse
Qts0.29 –
Vas268 L −39%, better
BL24.6 T·m +11%, better
Xmax9 mm +48%, better
Sensitivity97.1 dB –
FaitalPRO18HP1022
£266.26 · 14% more, worseFs35 Hz +25%, worse
Qts0.30 +3%
Vas204.9 L −54%, better
BL28 T·m +27%, better
Xmax9.5 mm +56%, better
Sensitivity96.6 dB −0.5
Eighteen Sound18LW2400
£272.63 · 16% more, worseFs35 Hz +25%, worse
Qts0.31 +7%
Vas230 L −48%, better
BL25.6 T·m +16%, better
Xmax9.5 mm +56%, better
Sensitivity96.9 dB –
Eighteen Sound18LW1400
£274.64 · 17% more, worseFs31 Hz +11%, worse
Qts0.29 –
Vas297 L −33%, better
BL24.7 T·m +12%, better
Xmax9 mm +48%, better
Sensitivity96.6 dB −0.5
RCFL18P400
£289.00 · 23% more, worseFs29 Hz +4%
Qts0.28 −3%
Vas340 L −23%, better
BL24.6 T·m +11%, better
Xmax9 mm +48%, better
Sensitivity96.6 dB −0.5
RCFLF18X401
£289.00 · 23% more, worseFs30 Hz +7%
Qts0.30 +3%
Vas274 L −38%, better
BL26.5 T·m +20%, better
Xmax12 mm +97%, better
Sensitivity95.8 dB −1.3
Eighteen Sound18LW1251
£291.80 · 24% more, worseFs35 Hz +25%, worse
Qts0.27 −7%
Vas268 L −39%, better
BL23.6 T·m +7%
Xmax9 mm +48%, better
Sensitivity98.2 dB +1.1
Eighteen Sound18NLW9400
£305.62 · 30% more, worseFs33 Hz +18%, worse
Qts0.26 −10%, better
Vas268 L −39%, better
BL26 T·m +18%, better
Xmax9.5 mm +56%, better
Sensitivity97.4 dB –
BMS18S450
£345.00 · 47% more, worseFs29 Hz +4%
Qts0.31 +7%
Vas281 L −36%, better
BL26.5 T·m +20%, better
Xmax12 mm +97%, better
Sensitivity95.3 dB −1.8
REDCATT18NPW
£347.48 · 48% more, worseFs36 Hz +29%, worse
Qts0.28 −4%
Vas211.5 L −52%, better
BL27.3 T·m +24%, better
Xmax4.8 mm −20%, worse
Sensitivity97.5 dB –
Dayton AudioRSS460HO-4
£442.94 · 89% more, worseFs19 Hz −33%, better
Qts0.32 +10%, worse
Vas272 L −38%, better
BL23.4 T·m +6%
Xmax12.8 mm +109%, better
Sensitivity89.2 dB −7.9, worse
Sica18 K 4 PL
£447.92 · 91% more, worseFs37 Hz +31%, worse
Qts0.32 +10%, worse
Vas201 L −54%, better
BL26.8 T·m +21%, better
Xmax6.5 mm +7%
Sensitivity96.6 dB −0.5
CelestionFTR18-4080F
No current priceFs33 Hz +16%, worse
Qts0.31 +7%
Vas281.3 L −36%, better
BL22.5 T·m –
Xmax6 mm –
Sensitivity96.6 dB −0.5
RCFLF18G908
No current priceFs33 Hz +18%, worse
Qts0.29 –
Vas268 L −39%, better
BL24.6 T·m +11%, better
Xmax9 mm +48%, better
Sensitivity97.1 dB –
Oberton18B500
No current priceFs35 Hz +25%, worse
Qts0.28 −5%
Vas243.9 L −45%, better
BL24.1 T·m +9%
Xmax8.8 mm +43%, better
Sensitivity97.7 dB +0.6
BishopSoundBWP18/8
No current priceFs35 Hz +25%, worse
Qts0.31 +7%
Vas378 L −14%, better
BL26.2 T·m +19%, better
Xmax12 mm +97%, better
Sensitivity100 dB +2.9, better
No photo
RCFLF18Y402
No current priceFs30 Hz +7%
Qts0.30 +3%
Vas274 L −38%, better
BL26.5 T·m +20%, better
Xmax12 mm +97%, better
Sensitivity95.8 dB −1.3
FaneCOLOSSUS 18-800N
No current priceFs38 Hz +36%, worse
Qts0.31 +6%
Vas217 L −51%, better
BL24 T·m +9%
Xmax8 mm +31%, better
Sensitivity97.7 dB +0.6
Oberton18B35
No current priceFs32 Hz +13%, worse
Qts0.32 +12%, worse
Vas333.6 L −24%, better
BL19.3 T·m −12%, worse
Xmax9 mm +48%, better
Sensitivity97 dB –
Oberton18B450
No current priceFs34 Hz +23%, worse
Qts0.34 +18%, worse
Vas241.6 L −45%, better
BL22.1 T·m –
Xmax7.3 mm +19%, better
Sensitivity96.4 dB −0.7
Eighteen Sound18W1300
No current priceFs35 Hz +25%, worse
Qts0.33 +14%, worse
Vas336 L −24%, better
BL20.4 T·m −8%
Xmax8.5 mm +39%, better
Sensitivity98.2 dB +1.1
Oberton18FBR700
No current priceFs36 Hz +27%, worse
Qts0.27 −7%
Vas231.3 L −48%, better
BL25.2 T·m +14%, better
Xmax8 mm +31%, better
Sensitivity97.8 dB +0.7
Oberton18XB700
No current priceFs36 Hz +29%, worse
Qts0.30 +5%
Vas183.2 L −58%, better
BL26.1 T·m +18%, better
Xmax9 mm +48%, better
Sensitivity96.4 dB −0.7
Eighteen Sound18W2001
No current priceFs37 Hz +32%, worse
Qts0.25 −14%, better
Vas230 L −48%, better
BL27.1 T·m +23%, better
Xmax7 mm +15%, better
Sensitivity98.5 dB +1.4
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 | £223.09 | Out of stock | Visit shop at Lean Audio |