GRS18PT-8
£64.18Fs23 Hz −30%, better
Qts0.54 +8%
Vas475.7 L +98%, worse
BL19.5 T·m −3%
Xmax7.8 mm +4%
Sensitivity92 dB −1.7
18-inch LF driver · IMF series · 99 mm voice coil · 800 W
P.Audio IMF 8Ω
8 Ω · 35–1000 Hz
No current price
- Fs
- 33Hz
- Xmax
- 7.5mm
- SPL
- 94dB
- Pe
- 800W
- BL
- 20.2T·m
- Vd
- 919cm³
- Qts
- 0.50
- Vas
- 240L
P.Audio IMF is an 18-inch 8 ohm LF driver rated at 800 W RMS. The validated T/S data includes Fs 33 Hz, Qts 0.50, Vas 240.1 L, Xmax 7.5 mm, sensitivity 93.7 dB, plus 919 cm³ Vd and 56 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
- 33Hz
- Qts
- 0.50
- Qes
- 0.59
- Qms
- 3.1
- Vas
- 240.1L
- Re
- 5.7Ω
- Le
- 769.58mH
Motor and cone
- BL
- 20.2T·m
- Sd
- 1225cm²
- Mms
- 205g
- Xmax
- 7.5mm
- Vd †
- 919cm³
- Voice coil
- 99mm
- Flux density
- 0.90T
Power and response
- Sensitivity †
- 93.7dB
- Manufacturer sensitivity
- 93dB
- Power
- 800W
- Nominal power
- 800W
- Impedance
- 8Ω
- Range
- 35–1000Hz
- EBP †
- 56 · Sealed or vented
Size and mounting
- Diameter
- 461mm
- Cutout
- 420mm
- Depth
- 185mm
- Weight
- 13.8kg
Other published values
- Cms
- 0.11mm/N
- Power Program
- 1600
Other dimensions
- Mounting Depth
- 185
- Mounting Diameter
- 440
† Calculated by bits from the published values
What this validation status means
Everything else P.Audio lists
LF · Primary · 18″
- BL
- 20.2T·m
- Fs
- 33Hz
- Le
- 769.58mH
- Re
- 5.7Ω
- Sd
- 1225cm²
- Cms
- 0.11mm/N
- Mms
- 205g
- Qes
- 0.59
- Qms
- 3.1
- Qts
- 0.50
- SPL
- 93.7dB
- Vas
- 240.1L
- Xmax
- 7.5mm
- Power
- 800W
- Impedance
- 8Ω
- Flux density
- 0.90T
- Sensitivity
- 93dB
- Low limit
- 35Hz
- Nominal power
- 800W
- Power Program
- 1600
- Calculated sensitivity †
- 93.7dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 93dB
- Voice coil
- 99mm
- Weight
- 13.8kg
- Diameter
- 461mm
- Depth
- 185mm
- Mounting Depth
- 185
- Cutout
- 420mm
- Mounting Diameter
- 440
02
Compare
Same-size drivers, compared with the IMF. Clear differences are green when better and red when worse.
This driverIMF
Best price
–
Fs
33 Hz
Qts
0.50
Vas
240.1 L
BL
20.2 T·m
Xmax
7.5 mm
Sensitivity
93.7 dB
Power
800 W
SB AudienceBIANCO-18SW500
£151.79Fs30 Hz −9%
Qts0.52 +4%
Vas334.8 L +39%, worse
BL19.8 T·m –
Xmax9.2 mm +23%, better
Sensitivity94.3 dB +0.6
Beyma18WRS600
£169.00Fs30 Hz −9%
Qts0.47 −6%
Vas354 L +47%, worse
BL19 T·m −6%
Xmax8.5 mm +13%, better
Sensitivity95 dB +1.3
SB AudienceROSSO-18SW800
£187.71Fs33 Hz –
Qts0.46 −8%
Vas258.1 L +7%
BL21 T·m +4%
Xmax11.3 mm +51%, better
Sensitivity94.9 dB +1.2
SB AudienceROSSO-18SW750
£200.80Fs36 Hz +9%
Qts0.43 −14%, better
Vas206.9 L −14%, better
BL23.3 T·m +16%, better
Xmax8.8 mm +18%, better
Sensitivity95.3 dB +1.6
B&C18PS100
£203.00Fs30 Hz −9%
Qts0.39 −22%, better
Vas245 L –
BL22.5 T·m +12%, better
Xmax8 mm +7%
Sensitivity94.1 dB –
Beyma18LX60V2S
£217.42Fs35 Hz +6%
Qts0.48 −4%
Vas236 L –
BL21.8 T·m +8%
Xmax8 mm +7%
Sensitivity95.1 dB +1.4
Precision DevicesPD.186/3
£259.00Fs34 Hz +4%
Qts0.52 +4%
Vas192.2 L −20%, better
BL22.2 T·m +10%, better
Xmax10.5 mm +40%, better
Sensitivity93.5 dB –
PRV Audio18SW2400
£291.80Fs36 Hz +10%
Qts0.56 +12%, worse
Vas192.8 L −20%, better
BL22.5 T·m +12%, better
Xmax12.5 mm +67%, better
Sensitivity94 dB –
BMS18N830V2
£347.59Fs31 Hz −6%
Qts0.37 −26%, better
Vas262 L +9%
BL22.4 T·m +11%, better
Xmax8 mm +7%
Sensitivity95 dB +1.3
Sica18 PF 4
£354.33Fs38 Hz +15%, worse
Qts0.43 −14%, better
Vas147.3 L −39%, better
BL24.6 T·m +22%, better
Xmax8 mm +7%
Sensitivity94.4 dB +0.7
Dayton AudioUMII18-22
£375.18Fs22 Hz −33%, better
Qts0.53 +6%
Vas248.2 L +3%
BL19.2 T·m −5%
Xmax28 mm +273%, better
Sensitivity88 dB −5.7, worse
P.Audio18FT-100SW
No current priceFs35 Hz +6%
Qts0.47 −6%
Vas222.9 L −7%
BL24.2 T·m +20%, better
Xmax7.5 mm –
Sensitivity94.8 dB +1.1
FaneIMPERIUM 18XL
No current priceFs36 Hz +9%
Qts0.53 +6%
Vas205 L −15%, better
BL20.4 T·m –
Xmax10.5 mm +40%, better
Sensitivity94.4 dB +0.7
REDCATT18FIND-2
No current priceFs34 Hz +3%
Qts0.46 −8%
Vas221 L −8%
BL21.3 T·m +6%
Xmax5.8 mm −22%, worse
Sensitivity94.5 dB +0.8
P.AudioGST-181200-V3
No current priceFs35 Hz +6%
Qts0.54 +8%
Vas180.2 L −25%, better
BL22.8 T·m +13%, better
Xmax6 mm −20%, worse
Sensitivity93.3 dB –
No photo
PHL Audio7081
No current priceFs34 Hz +3%
Qts0.41 −18%, better
Vas267.6 L +11%, worse
BL22.7 T·m +13%, better
Xmax7.5 mm –
Sensitivity95.8 dB +2.1, better
P.AudioC18-650EL-V3
No current priceFs41 Hz +24%, worse
Qts0.52 +4%
Vas179.1 L −25%, better
BL21.5 T·m +6%
Xmax5.3 mm −30%, worse
Sensitivity95.5 dB +1.8
PeerlessFSL-1830R09-08
No current priceFs33 Hz –
Qts0.58 +16%, worse
Vas220 L −8%
BL21.1 T·m +5%
Xmax15.9 mm +112%, better
Sensitivity93.2 dB −0.5
P.AudioP180/2243
No current priceFs35 Hz +6%
Qts0.59 +18%, worse
Vas159.1 L −34%, better
BL20.1 T·m –
Xmax8.5 mm +13%, better
Sensitivity92.2 dB −1.5
P.AudioC18-1000-V4
No current priceFs35 Hz +6%
Qts0.56 +11%, worse
Vas183.7 L −23%, better
BL22.5 T·m +12%, better
Xmax9.5 mm +27%, better
Sensitivity93.4 dB –
CelestionTF1835
No current priceFs37 Hz +12%, worse
Qts0.54 +7%
Vas148.3 L −38%, better
BL21.8 T·m +8%
Xmax10 mm +33%, better
Sensitivity93.1 dB −0.6
Sica18 F 3 CP
No current priceFs32 Hz −4%
Qts0.44 −12%, better
Vas321 L +34%, worse
BL17.2 T·m −15%, worse
Xmax6.5 mm −13%, worse
Sensitivity94.9 dB +1.2
CIARECSD184-22
No current priceFs37 Hz +12%, worse
Qts0.53 +6%
Vas141 L −41%, better
BL18.5 T·m −8%
Xmax13 mm +73%, better
Sensitivity92.9 dB −0.8
BishopSoundBDP18/8
No current priceFs40 Hz +20%, worse
Qts0.56 +12%, worse
Vas178.1 L −26%, better
BL23.0 T·m +14%, better
Xmax11.3 mm +51%, better
Sensitivity94.8 dB +1.1
Oberton18B450
No current priceFs34 Hz +4%
Qts0.34 −32%, better
Vas241.6 L –
BL22.1 T·m +10%
Xmax7.3 mm −3%
Sensitivity96.4 dB +2.7, better
P.Audio18BM-1000S
No current priceFs35 Hz +6%
Qts0.40 −20%, better
Vas212.1 L −12%, better
BL23.8 T·m +18%, better
Xmax8 mm +7%
Sensitivity95.3 dB +1.6
CelestionERPROX18E
No current priceFs32 Hz −3%
Qts0.43 −13%, better
Vas246.2 L –
BL23.7 T·m +17%, better
Xmax9.5 mm +27%, better
Sensitivity94.4 dB +0.7
PRV Audio18SW2000
No current priceFs32 Hz –
Qts0.45 −10%
Vas289.9 L +21%, worse
BL22.1 T·m +10%
Xmax9.6 mm +28%, better
Sensitivity95.2 dB +1.5
P.AudioEX18-1000S
No current priceFs38 Hz +15%, worse
Qts0.61 +22%, worse
Vas190.6 L −21%, better
BL20.1 T·m –
Xmax5.3 mm −30%, worse
Sensitivity94.1 dB –
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.