GRS18PT-8
£64.77Fs23 Hz −19%, better
Qts0.54 −10%
Vas475.7 L +22%, worse
BL19.5 T·m +72%, better
Xmax7.8 mm −57%, worse
Sensitivity92 dB −1.3
18-inch LF driver · IB series · 500 W
Acoustic Elegance IB18AU-4 4Ω
4 Ω
No current price
- Fs
- 28Hz
- Xmax
- 18mm
- SPL
- 93dB
- Pe
- 500W
- BL
- 11.3T·m
- Vd
- 2192cm³
- Qts
- 0.60
- Vas
- 390L
Acoustic Elegance IB18AU-4 is an 18-inch 4 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 28 Hz, Qts 0.60, Vas 389.8 L, Xmax 18 mm, sensitivity 93.3 dB, plus 2192 cm³ Vd and 43 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
- 28Hz
- Qts
- 0.60
- Qes
- 0.66
- Qms
- 6.0
- Vas
- 389.8L
- Re
- 2.8Ω
- Le
- 0.41mH
Motor and cone
- BL
- 11.3T·m
- Sd
- 1218cm²
- Mms
- 170g
- Xmax
- 18mm
- Vd †
- 2192cm³
Power and response
- Sensitivity †
- 93.3dB
- Manufacturer sensitivity
- 93.3dB
- Power
- 500W
- Nominal power
- 500W
- Impedance
- 4Ω
- EBP †
- 43 · Leans sealed
Other published values
- Cms
- 0.18mm/N
- Rms
- 5.03kg/s
- Xmech
- 25
† Calculated by bits from the published values
What this validation status means
Everything else Acoustic Elegance lists
LF · Primary · 18″
- BL
- 11.3T·m
- Fs
- 28Hz
- Le
- 0.41mH
- Re
- 2.8Ω
- Sd
- 1218cm²
- Cms
- 0.18mm/N
- Mms
- 170g
- Qes
- 0.66
- Qms
- 6.0
- Qts
- 0.60
- Rms
- 5.03kg/s
- SPL
- 93.3dB
- Vas
- 389.8L
- Xmax
- 18mm
- Xmech
- 25
- Power
- 500W
- Impedance
- 4Ω
- Sensitivity
- 93.3dB
- Nominal power
- 500W
- Calculated sensitivity †
- 93.3dB
- Manufacturer sensitivity
- 93.3dB
02
Compare
Same-size drivers, compared with the IB18AU-4. Clear differences are green when better and red when worse.
This driverIB18AU-4
Best price
–
Fs
28 Hz
Qts
0.60
Vas
389.8 L
BL
11.3 T·m
Xmax
18 mm
Sensitivity
93.3 dB
Power
500 W
SB AudienceBIANCO-18SW450
£135.53Fs28 Hz –
Qts0.45 −25%, better
Vas370.4 L −5%
BL18.8 T·m +66%, better
Xmax10.9 mm −39%, worse
Sensitivity94.4 dB +1.1
SB AudienceBIANCO-18SW500
£151.79Fs30 Hz +6%
Qts0.52 −13%, better
Vas334.8 L −14%, better
BL19.8 T·m +75%, better
Xmax9.2 mm −49%, worse
Sensitivity94.3 dB +1
Beyma18WRS600
£185.00Fs30 Hz +6%
Qts0.47 −21%, better
Vas354 L −9%
BL19 T·m +68%, better
Xmax8.5 mm −53%, worse
Sensitivity95 dB +1.7
EminenceKILOMAX PRO-18A
£241.03Fs32 Hz +13%, worse
Qts0.47 −21%, better
Vas331.5 L −15%, better
BL17.2 T·m +52%, better
Xmax10 mm −44%, worse
Sensitivity95.5 dB +2.2, better
Precision DevicesPD.186/3
£266.00Fs34 Hz +20%, worse
Qts0.52 −13%, better
Vas192.2 L −51%, better
BL22.2 T·m +96%, better
Xmax10.5 mm −42%, worse
Sensitivity93.5 dB –
PRV Audio18SW2400
£297.05Fs36 Hz +28%, worse
Qts0.56 −6%
Vas192.8 L −51%, better
BL22.5 T·m +99%, better
Xmax12.5 mm −31%, worse
Sensitivity94 dB +0.7
SB AudienceNERO-18OBN500D
£339.49Fs22 Hz −22%, better
Qts0.90 +51%, worse
Vas662 L +70%, worse
BL10.9 T·m −4%
Xmax16 mm −11%, worse
Sensitivity90.1 dB −3.2, worse
Dayton AudioUMII18-22
£381.93Fs22 Hz −22%, better
Qts0.53 −11%, better
Vas248.2 L −36%, better
BL19.2 T·m +70%, better
Xmax28 mm +56%, better
Sensitivity88 dB −5.3, worse
BMS18N862
£576.35Fs25 Hz −12%, better
Qts0.34 −43%, better
Vas312 L −20%, better
BL25.5 T·m +126%, better
Xmax19 mm +6%
Sensitivity93.4 dB –
Acoustic EleganceIB18AU-8
No current priceFs28 Hz –
Qts0.59 –
Vas389.8 L –
BL16 T·m +41%, better
Xmax18 mm –
Sensitivity93.3 dB –
Acoustic EleganceIB18HT-4
No current priceFs18 Hz −35%, better
Qts0.57 −5%
Vas632.1 L +62%, worse
BL11.3 T·m –
Xmax18 mm –
Sensitivity90 dB −3.3, worse
Acoustic EleganceIB18HT-8
No current priceFs18 Hz −35%, better
Qts0.57 −5%
Vas632.1 L +62%, worse
BL16 T·m +41%, better
Xmax18 mm –
Sensitivity90 dB −3.3, worse
PeerlessFSL-1830R09-08
No current priceFs33 Hz +16%, worse
Qts0.58 −3%
Vas220 L −44%, better
BL21.1 T·m +87%, better
Xmax15.9 mm −12%, worse
Sensitivity93.2 dB –
CIARE18.00SW
No current priceFs36 Hz +27%, worse
Qts0.61 –
Vas94 L −76%, better
BL20 T·m +77%, better
Xmax14 mm −22%, worse
Sensitivity90 dB −3.3, worse
P.AudioEX18-1000S
No current priceFs38 Hz +34%, worse
Qts0.61 –
Vas190.6 L −51%, better
BL20.1 T·m +78%, better
Xmax5.3 mm −71%, worse
Sensitivity94.1 dB +0.8
P.AudioP180/2243
No current priceFs35 Hz +23%, worse
Qts0.59 –
Vas159.1 L −59%, better
BL20.1 T·m +78%, better
Xmax8.5 mm −53%, worse
Sensitivity92.2 dB −1.1
P.AudioGST-181500-V3
No current priceFs40 Hz +41%, worse
Qts0.60 –
Vas92.2 L −76%, better
BL26.8 T·m +137%, better
Xmax9 mm −50%, worse
Sensitivity91.7 dB −1.6
P.AudioSD18-1700EL
No current priceFs45 Hz +59%, worse
Qts0.59 –
Vas99.7 L −74%, better
BL25.9 T·m +129%, better
Xmax4.8 mm −73%, worse
Sensitivity93.6 dB –
BishopSoundBWP18/8
No current priceFs43 Hz +51%, worse
Qts0.64 +8%
Vas120.9 L −69%, better
BL24.1 T·m +113%, better
Xmax12 mm −33%, worse
Sensitivity93.5 dB –
BishopSoundBDP18/8
No current priceFs40 Hz +40%, worse
Qts0.56 −7%
Vas178.1 L −54%, better
BL23.0 T·m +103%, better
Xmax11.3 mm −37%, worse
Sensitivity94.8 dB +1.5
P.AudioC18-1000-V4
No current priceFs35 Hz +23%, worse
Qts0.56 −7%
Vas183.7 L −53%, better
BL22.5 T·m +99%, better
Xmax9.5 mm −47%, worse
Sensitivity93.4 dB –
BMS18N860
No current priceFs25 Hz −12%, better
Qts0.37 −38%, better
Vas304 L −22%, better
BL24.9 T·m +120%, better
Xmax19 mm +6%
Sensitivity92.7 dB −0.6
P.AudioIMF
No current priceFs33 Hz +16%, worse
Qts0.50 −16%, better
Vas240.1 L −38%, better
BL20.2 T·m +78%, better
Xmax7.5 mm −58%, worse
Sensitivity93.7 dB –
FaneIMPERIUM 18XL
No current priceFs36 Hz +27%, worse
Qts0.53 −11%, better
Vas205 L −47%, better
BL20.4 T·m +80%, better
Xmax10.5 mm −42%, worse
Sensitivity94.4 dB +1.1
P.AudioGST-181200-V3
No current priceFs35 Hz +23%, worse
Qts0.54 −10%
Vas180.2 L −54%, better
BL22.8 T·m +102%, better
Xmax6 mm −67%, worse
Sensitivity93.3 dB –
P.AudioC18-1200
No current priceFs38 Hz +34%, worse
Qts0.55 −8%
Vas136.4 L −65%, better
BL25.1 T·m +122%, better
Xmax9.5 mm −47%, worse
Sensitivity93.2 dB –
P.AudioC18-650EL-V4
No current priceFs35 Hz +23%, worse
Qts0.68 +13%, worse
Vas127.0 L −67%, better
BL22.1 T·m +96%, better
Xmax7 mm −61%, worse
Sensitivity90.9 dB −2.4, worse
CIARECSD184-22
No current priceFs37 Hz +30%, worse
Qts0.53 −11%, better
Vas141 L −64%, better
BL18.5 T·m +64%, better
Xmax13 mm −28%, worse
Sensitivity92.9 dB –
Sica18 F 3 CP
No current priceFs32 Hz +11%, worse
Qts0.44 −26%, better
Vas321 L −18%, better
BL17.2 T·m +52%, better
Xmax6.5 mm −64%, worse
Sensitivity94.9 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.