GRS8PT-8
£24.83Fs59 Hz −26%, better
Qts0.55 +10%, worse
Vas20.1 L +78%, worse
BL10.2 T·m –
Xmax6.5 mm +189%, better
Sensitivity90.5 dB −1.9
8-inch LF driver · 51 mm voice coil · 200 W
REDCATT 81FIND 8Ω
8 Ω
No current price
- Fs
- 80Hz
- Xmax
- 2.3mm
- SPL
- 92dB
- Pe
- 200W
- BL
- 10.2T·m
- Vd
- 48cm³
- Qts
- 0.50
- Vas
- 11L
REDCATT 81FIND is an 8-inch 8 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 80 Hz, Qts 0.50, Vas 11.3 L, Xmax 2.3 mm, sensitivity 92.4 dB, plus 48 cm³ Vd and 151 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
- 80Hz
- Qts
- 0.50
- Qes
- 0.53
- Qms
- 8.3
- Vas
- 11.3L
- Re
- 4.7Ω
- Le
- 0.44mH
Motor and cone
- BL
- 10.2T·m
- Sd
- 214cm²
- Mms
- 23g
- Xmax
- 2.3mm
- Vd †
- 48cm³
- Voice coil
- 51mm
Power and response
- Sensitivity †
- 92.4dB
- Manufacturer sensitivity
- 94.7dB
- Power
- 200W
- Impedance
- 8Ω
- EBP †
- 151 · Leans vented
Size and mounting
- Diameter
- 209mm
- Cutout
- 180mm
- Bolt circle
- 197mm
- Weight
- 2.8kg
Other published values
- Xmech
- 10.25
- Power Peak
- 800
Other dimensions
- Mounting Depth
- 91.5
Sensitivity shows 92.4 dB, calculated from the T/S values. REDCATT publishes 94.7 dB, 2.3 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else REDCATT lists
LF · Primary · 8″
- BL
- 10.2T·m
- Fs
- 80Hz
- Le
- 0.44mH
- Re
- 4.7Ω
- Sd
- 214cm²
- Mms
- 23g
- Qes
- 0.53
- Qms
- 8.3
- Qts
- 0.50
- SPL
- 92.4dB
- Vas
- 11.3L
- Xmax
- 2.3mm
- Xmech
- 10.25
- Power
- 200W
- Impedance
- 8Ω
- Power Peak
- 800
- Sensitivity
- 94.7dB
- Calculated sensitivity †
- 92.4dB
- Manufacturer sensitivity
- 94.7dB
- Voice coil
- 51mm
- Weight
- 2.8kg
- Diameter
- 209mm
- Mounting Depth
- 91.5
- Cutout
- 180mm
- Bolt circle
- 197mm
02
Compare
Same-size drivers, compared with the 81FIND. Clear differences are green when better and red when worse.
This driver81FIND
Best price
–
Fs
80 Hz
Qts
0.50
Vas
11.3 L
BL
10.2 T·m
Xmax
2.3 mm
Sensitivity
92.4 dB
Power
200 W
SB AudienceBIANCO-8MW125
£37.54Fs89 Hz +11%, worse
Qts0.55 +10%, worse
Vas10.1 L −11%, better
BL11.3 T·m +11%, better
Xmax6.4 mm +185%, better
Sensitivity93 dB +0.6
Dayton AudioMB820-8
£37.62Fs69 Hz −14%, better
Qts0.46 −8%
Vas15.8 L +40%, worse
BL9.6 T·m −6%
Xmax4 mm +78%, better
Sensitivity92 dB –
Beyma8CMV2
£44.94Fs75 Hz −6%
Qts0.52 +4%
Vas14.6 L +29%, worse
BL9.6 T·m −6%
Xmax5.7 mm +153%, better
Sensitivity92.5 dB –
Dayton AudioPA200-8
£45.15Fs55 Hz −31%, better
Qts0.48 −4%
Vas26.6 L +135%, worse
BL9.3 T·m −9%
Xmax3 mm +33%, better
Sensitivity91.5 dB −0.9
PeerlessGBS-200F35CP02-04
£54.66Fs42 Hz −48%, better
Qts0.44 −12%, better
Vas13.9 L +23%, worse
BL11.7 T·m +15%, better
Xmax7.8 mm +245%, better
Sensitivity85.4 dB −7, worse
FaitalPROW8N8-150
£55.00Fs76 Hz −5%
Qts0.52 +4%
Vas14.4 L +27%, worse
BL9.9 T·m –
Xmax5.5 mm +145%, better
Sensitivity92.3 dB –
FaitalPRO8FE400
£55.51Fs100 Hz +25%, worse
Qts0.53 +6%
Vas9.4 L −17%, better
BL10.5 T·m –
Xmax4.8 mm +112%, better
Sensitivity94.1 dB +1.7
GRS8SW-4HE-8
£72.60Fs25 Hz −69%, better
Qts0.45 −10%
Vas31.7 L +181%, worse
BL10.5 T·m –
Xmax10.8 mm +380%, better
Sensitivity81.9 dB −10.5, worse
Beyma8MI100
£73.79Fs90 Hz +13%, worse
Qts0.45 −10%
Vas12 L +6%
BL11.5 T·m +13%, better
Xmax3 mm +33%, better
Sensitivity94.6 dB +2.2, better
CelestionFTR08-2011D
£99.00Fs86 Hz +8%
Qts0.44 −13%, better
Vas9.0 L −20%, better
BL12.7 T·m +25%, better
Xmax5.5 mm +144%, better
Sensitivity92.3 dB –
CelestionNTR08-2011D
£125.00Fs85 Hz +6%
Qts0.44 −13%, better
Vas10.3 L −9%
BL12.0 T·m +17%, better
Xmax6 mm +167%, better
Sensitivity92.7 dB –
FaitalPRO8PR150
£136.70Fs75 Hz −6%
Qts0.48 −4%
Vas16.2 L +43%, worse
BL10.4 T·m –
Xmax5 mm +122%, better
Sensitivity93.1 dB +0.7
WavecorSW215WA01
£149.47Fs33 Hz −59%, better
Qts0.49 –
Vas26 L +130%, worse
BL8.4 T·m −17%, worse
Xmax10 mm +344%, better
Sensitivity84.7 dB −7.7, worse
Dayton AudioE180HE-44
£162.29Fs35 Hz −56%, better
Qts0.46 −8%
Vas16.1 L +43%, worse
BL9.6 T·m −6%
Xmax14.7 mm +553%, better
Sensitivity83.1 dB −9.3, worse
WavecorSW182BD04
£164.52Fs37 Hz −53%, better
Qts0.49 –
Vas12.7 L +12%, worse
BL10.2 T·m –
Xmax7 mm +211%, better
Sensitivity83.1 dB −9.3, worse
VoltSB220.1
£285.12Fs27 Hz −66%, better
Qts0.49 –
Vas37.4 L +231%, worse
BL9.7 T·m −5%
Xmax12 mm +433%, better
Sensitivity83.5 dB −8.9, worse
LavoceCPF082.00K
No current priceFs93 Hz +16%, worse
Qts0.46 −8%
Vas11.1 L –
BL10.9 T·m +7%
Xmax3.3 mm +47%, better
Sensitivity94.4 dB +2, better
No photo
PHL Audio2560-3
No current priceFs79 Hz –
Qts0.45 −10%
Vas10.7 L −5%
BL10.4 T·m –
Xmax5.5 mm +144%, better
Sensitivity92.3 dB –
CIAREPM203
No current priceFs91 Hz +14%, worse
Qts0.54 +8%
Vas10 L −12%, better
BL10.1 T·m –
Xmax4.4 mm +96%, better
Sensitivity92.7 dB –
CIAREPM200N
No current priceFs99 Hz +24%, worse
Qts0.50 –
Vas7.7 L −32%, better
BL11.2 T·m +10%
Xmax3.5 mm +56%, better
Sensitivity93.1 dB +0.7
Beyma8CX300FE
No current priceFs89 Hz +11%, worse
Qts0.55 +10%, worse
Vas10.8 L −4%
BL9.6 T·m −6%
Xmax6 mm +167%, better
Sensitivity92.9 dB +0.5
No photo
PHL Audio2001
No current priceFs77 Hz −4%
Qts0.53 +6%
Vas13.8 L +22%, worse
BL9.5 T·m −7%
Xmax5.5 mm +144%, better
Sensitivity92.2 dB –
No photo
PHL Audio2001NDU
No current priceFs77 Hz −4%
Qts0.53 +6%
Vas13.8 L +22%, worse
BL9.5 T·m −7%
Xmax5.5 mm +144%, better
Sensitivity92.2 dB –
CIARECM200N
No current priceFs94 Hz +18%, worse
Qts0.46 −8%
Vas8.8 L −22%, better
BL8.6 T·m −16%, worse
Xmax3.8 mm +69%, better
Sensitivity93.5 dB +1.1
FaitalPRO8HX210
No current priceFs83 Hz +4%
Qts0.44 −12%, better
Vas10.1 L −11%, better
BL11.9 T·m +16%, better
Xmax6.5 mm +190%, better
Sensitivity92.7 dB –
Supravox215 RTF 64 BI-CÔNE
No current priceFs57 Hz −29%, better
Qts0.46 −8%
Vas80 L +608%, worse
BL6.5 T·m −36%, worse
Xmax2.3 mm –
Sensitivity96.5 dB +4.1, better
MonacorSP-8/150PA
No current priceFs88 Hz +10%, worse
Qts0.43 −14%, better
Vas12 L +6%
BL12.6 T·m +24%, better
Xmax1.3 mm −44%, worse
Sensitivity94.3 dB +1.9
LavoceNBASS08-20
No current priceFs55 Hz −31%, better
Qts0.48 −4%
Vas18.4 L +63%, worse
BL11.3 T·m +11%, better
Xmax6.5 mm +189%, better
Sensitivity89.9 dB −2.5, worse
Cube AudioF8 NEO V2
No current priceFs39 Hz −51%, better
Qts0.47 −6%
Vas45 L +298%, worse
BL9.5 T·m −7%
Xmax3 mm +33%, better
Sensitivity89.5 dB −2.9, worse
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 |
|---|---|---|---|---|
Lautsprecherteile Lange Lieferzeit (bis zu 120 Tage) | £35.89 | Special order | Visit shop at Lautsprecherteile |