GRS18PT-8
£64.97Fs23 Hz −15%, better
Qts0.54 −26%, better
Vas475.7 L −46%, better
BL19.5 T·m +87%, better
Xmax7.8 mm +56%, better
Sensitivity92 dB −2.8, worse
18.5-inch LF driver · FC series
Lii Audio FC-18W 8Ω
8 Ω · 27–12000 Hz
No current price
- Fs
- 27Hz
- Xmax
- 5mm
- SPL
- 95dB
- Pe
- –
- BL
- 10.5T·m
- Vd
- 613cm³
- Qts
- 0.73
- Vas
- 873L
Lii Audio FC-18W is an 18.5-inch 8 ohm LF driver. The validated T/S data includes Fs 27 Hz, Qts 0.73, Vas 873 L, Xmax 5 mm, sensitivity 94.8 dB, plus 613 cm³ Vd and 30 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
- 27Hz
- Qts
- 0.73
- Qes
- 0.91
- Qms
- 6.7
- Vas
- 873L
- Re
- 6.9Ω
Motor and cone
- BL
- 10.5T·m
- Sd
- 1225cm²
- Mms
- 85g
- Xmax
- 5mm
- Vd †
- 613cm³
Power and response
- Sensitivity †
- 94.8dB
- Manufacturer sensitivity
- 98dB
- Impedance
- 8Ω
- Range
- 27–12000Hz
- EBP †
- 30 · Leans sealed
Size and mounting
- Diameter
- 465mm
Other published values
- Power Peak
- 80
Sensitivity shows 94.8 dB, calculated from the T/S values. Lii Audio publishes 98.0 dB, 3.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Lii Audio lists
LF · Primary · 18.5″
- BL
- 10.5T·m
- Fs
- 27Hz
- Re
- 6.9Ω
- Sd
- 1225cm²
- Mms
- 85g
- Qes
- 0.91
- Qms
- 6.7
- Qts
- 0.73
- SPL
- 94.8dB
- Vas
- 873L
- Xmax
- 5mm
- Impedance
- 8Ω
- Power Peak
- 80
- Sensitivity
- 98dB
- Low limit
- 27Hz
- Calculated sensitivity †
- 94.8dB
- High limit
- 12000Hz
- Manufacturer sensitivity
- 98dB
- Diameter
- 465mm
02
Compare
Same-size drivers, compared with the FC-18W. Clear differences are green when better and red when worse.
This driverFC-18W
Best price
–
Fs
27 Hz
Qts
0.73
Vas
873 L
BL
10.5 T·m
Xmax
5 mm
Sensitivity
94.8 dB
Power
–
REDCATT183FIND
£122.50Fs32 Hz +19%, worse
Qts0.42 −43%, better
Vas329.5 L −62%, better
BL21.1 T·m +102%, better
Xmax5.9 mm +18%, better
Sensitivity96 dB +1.2
Dayton AudioPA460-8
£132.21Fs28 Hz +5%
Qts0.33 −55%, better
Vas402 L −54%, better
BL22.3 T·m +113%, better
Xmax6 mm +20%, better
Sensitivity96.3 dB +1.5
EminenceOMEGA PRO-18A
£200.22Fs25 Hz −7%
Qts0.31 −58%, better
Vas548.7 L −37%, better
BL18.8 T·m +80%, better
Xmax4.8 mm −4%
Sensitivity96.3 dB +1.5
REDCATT182FIND
£201.06Fs31 Hz +15%, worse
Qts0.23 −69%, better
Vas208.6 L −76%, better
BL35.4 T·m +239%, better
Xmax5.8 mm +15%, better
Sensitivity96.2 dB +1.4
EminenceSIGMA PRO-18A
£236.55Fs28 Hz +4%
Qts0.29 −60%, better
Vas441.2 L −49%, better
BL22.1 T·m +111%, better
Xmax6.1 mm +22%, better
Sensitivity97.1 dB +2.3, better
BishopSoundBWP18/4
£269.00Fs42 Hz +57%, worse
Qts0.69 −6%
Vas110.1 L −87%, better
BL18.8 T·m +80%, better
Xmax12 mm +140%, better
Sensitivity92.6 dB −2.2, worse
SB AudienceNERO-18OBN500D
£337.88Fs22 Hz −19%, better
Qts0.90 +23%, worse
Vas662 L −24%, better
BL10.9 T·m +4%
Xmax16 mm +220%, better
Sensitivity90.1 dB −4.7, worse
REDCATT18NPW
£350.60Fs36 Hz +33%, worse
Qts0.28 −62%, better
Vas211.5 L −76%, better
BL27.3 T·m +161%, better
Xmax4.8 mm −3%
Sensitivity97.5 dB +2.7, better
Dayton AudioUMII18-22
£380.12Fs22 Hz −19%, better
Qts0.53 −28%, better
Vas248.2 L −72%, better
BL19.2 T·m +84%, better
Xmax28 mm +460%, better
Sensitivity88 dB −6.8, worse
P.AudioC18-1000-V3
No current priceFs41 Hz +52%, worse
Qts0.72 –
Vas117.6 L −87%, better
BL22.9 T·m +119%, better
Xmax5.3 mm +5%
Sensitivity92.3 dB −2.5, worse
Acoustic EleganceIB18HT-4
No current priceFs18 Hz −32%, better
Qts0.57 −22%, better
Vas632.1 L −28%, better
BL11.3 T·m +8%
Xmax18 mm +260%, better
Sensitivity90 dB −4.8, worse
P.AudioEX18-1000S
No current priceFs38 Hz +41%, worse
Qts0.61 −17%, better
Vas190.6 L −78%, better
BL20.1 T·m +93%, better
Xmax5.3 mm +5%
Sensitivity94.1 dB −0.7
Acoustic EleganceIB18AU-4
No current priceFs28 Hz +5%
Qts0.60 −18%, better
Vas389.8 L −55%, better
BL11.3 T·m +8%
Xmax18 mm +260%, better
Sensitivity93.3 dB −1.5
P.AudioSD18-1700EL
No current priceFs45 Hz +67%, worse
Qts0.59 −19%, better
Vas99.7 L −89%, better
BL25.9 T·m +148%, better
Xmax4.8 mm −3%
Sensitivity93.6 dB −1.2
P.AudioP180/2242-V3
No current priceFs46 Hz +70%, worse
Qts0.68 −7%
Vas131.4 L −85%, better
BL20.2 T·m +93%, better
Xmax6.8 mm +36%, better
Sensitivity94.4 dB –
P.AudioC18-650EL-V4
No current priceFs35 Hz +30%, worse
Qts0.68 −8%
Vas127.0 L −85%, better
BL22.1 T·m +112%, better
Xmax7 mm +40%, better
Sensitivity90.9 dB −3.9, worse
BishopSoundBWP18/8
No current priceFs43 Hz +59%, worse
Qts0.64 −12%, better
Vas120.9 L −86%, better
BL24.1 T·m +131%, better
Xmax12 mm +140%, better
Sensitivity93.5 dB −1.3
Acoustic EleganceIB18HT-8
No current priceFs18 Hz −32%, better
Qts0.57 −22%, better
Vas632.1 L −28%, better
BL16 T·m +53%, better
Xmax18 mm +260%, better
Sensitivity90 dB −4.8, worse
P.AudioC18-650EL-V3
No current priceFs41 Hz +52%, worse
Qts0.52 −29%, better
Vas179.1 L −79%, better
BL21.5 T·m +105%, better
Xmax5.3 mm +5%
Sensitivity95.5 dB +0.7
CelestionTF1830
No current priceFs36 Hz +32%, worse
Qts0.39 −46%, better
Vas202.4 L −77%, better
BL15.5 T·m +48%, better
Xmax4.5 mm −10%, worse
Sensitivity95.3 dB +0.5
Acoustic EleganceIB18AU-8
No current priceFs28 Hz +5%
Qts0.59 −19%, better
Vas389.8 L −55%, better
BL16 T·m +53%, better
Xmax18 mm +260%, better
Sensitivity93.3 dB −1.5
P.AudioP180/2243
No current priceFs35 Hz +30%, worse
Qts0.59 −19%, better
Vas159.1 L −82%, better
BL20.1 T·m +92%, better
Xmax8.5 mm +70%, better
Sensitivity92.2 dB −2.6, worse
P.AudioGST-181500-V3
No current priceFs40 Hz +48%, worse
Qts0.60 −18%, better
Vas92.2 L −89%, better
BL26.8 T·m +156%, better
Xmax9 mm +80%, better
Sensitivity91.7 dB −3.1, worse
REDCATT18FIND-2
No current priceFs34 Hz +26%, worse
Qts0.46 −37%, better
Vas221 L −75%, better
BL21.3 T·m +104%, better
Xmax5.8 mm +17%, better
Sensitivity94.5 dB –
REDCATT18FIND-1
No current priceFs36 Hz +33%, worse
Qts0.42 −43%, better
Vas203.4 L −77%, better
BL23.6 T·m +126%, better
Xmax5.8 mm +17%, better
Sensitivity95.4 dB +0.6
P.AudioGST-181200-V3
No current priceFs35 Hz +30%, worse
Qts0.54 −26%, better
Vas180.2 L −79%, better
BL22.8 T·m +118%, better
Xmax6 mm +20%, better
Sensitivity93.3 dB −1.5
CelestionFTR18-4080FDX
No current priceFs37 Hz +38%, worse
Qts0.41 −44%, better
Vas160.7 L −82%, better
BL25.1 T·m +140%, better
Xmax6 mm +20%, better
Sensitivity94.9 dB –
CelestionFTR18-4080F
No current priceFs33 Hz +20%, worse
Qts0.31 −58%, better
Vas281.3 L −68%, better
BL22.5 T·m +115%, better
Xmax6 mm +20%, better
Sensitivity96.6 dB +1.8
PeerlessFSL-1830R09-08
No current priceFs33 Hz +22%, worse
Qts0.58 −21%, better
Vas220 L −75%, better
BL21.1 T·m +102%, better
Xmax15.9 mm +218%, better
Sensitivity93.2 dB −1.6
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.