Dayton AudioPCS175-8
£11.21 · 16% less, betterFs56 Hz −19%, better
Qts0.83 −5%
Vas0.5 L −95%, better
BL5.6 T·m −8%
Xmax2.3 mm −25%, worse
Sensitivity71.1 dB −15.7, worse
6.5-inch LF driver · 38 mm voice coil · 60 W
GRS 6PR-8 8Ω
8 Ω · 60–8000 Hz
£13.36
SteadySoundImports · 33 in stock · Ships from Netherlands · All 1 offer
- Fs
- 69Hz
- Xmax
- 3mm
- SPL
- 87dB
- Pe
- 60W
- BL
- 6.1T·m
- Vd
- 42cm³
- Qts
- 0.87
- Vas
- 11L
GRS 6PR-8 is a 6.5-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 69 Hz, Qts 0.87, Vas 10.6 L, Xmax 3 mm, sensitivity 86.8 dB, plus 42 cm³ Vd and 59 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 £13.36.
The published T/S values agree with each other
Thiele/Small
- Fs
- 69Hz
- Qts
- 0.87
- Qes
- 1.16
- Qms
- 3.5
- Vas
- 10.6L
- Re
- 7.1Ω
- Le
- 1.10mH
Motor and cone
- BL
- 6.1T·m
- Sd
- 140cm²
- Mms
- 14g
- Xmax
- 3mm
- Vd †
- 42cm³
- Voice coil
- 38mm
Power and response
- Sensitivity †
- 86.8dB
- Manufacturer sensitivity
- 87dB
- Power
- 60W
- Impedance
- 8Ω
- Range
- 60–8000Hz
- EBP †
- 59 · Sealed or vented
Size and mounting
- Diameter
- 165.1mm
- Cutout
- 142.9mm
- Depth
- 77.8mm
Other published values
- Cms
- 0.38mm/N
- Power Peak
- 85
† Calculated by bits from the published values
What this validation status means
Everything else GRS lists
LF · Primary · 6.5″
- BL
- 6.1T·m
- Fs
- 69Hz
- Le
- 1.10mH
- Re
- 7.1Ω
- Sd
- 140cm²
- Cms
- 0.38mm/N
- Mms
- 14g
- Qes
- 1.16
- Qms
- 3.5
- Qts
- 0.87
- SPL
- 86.8dB
- Vas
- 10.6L
- Xmax
- 3mm
- Power
- 60W
- Impedance
- 8Ω
- Power Peak
- 85
- Sensitivity
- 87dB
- Low limit
- 60Hz
- Calculated sensitivity †
- 86.8dB
- High limit
- 8000Hz
- Manufacturer sensitivity
- 87dB
- Voice coil
- 38mm
- Diameter
- 165.1mm
- Depth
- 77.8mm
- Cutout
- 142.9mm
02
Compare
Same-size drivers, compared with the 6PR-8. Clear differences are green when better and red when worse.
This driver6PR-8
Best price
£13.36
Fs
69 Hz
Qts
0.87
Vas
10.6 L
BL
6.1 T·m
Xmax
3 mm
Sensitivity
86.8 dB
Power
60 W
GRS6PT-8
£15.70 · 18% more, worseFs94 Hz +36%, worse
Qts0.72 −17%, better
Vas9.5 L −11%, better
BL6.4 T·m +5%
Xmax4.2 mm +40%, better
Sensitivity91.7 dB +4.9, better
VisatonBG 17
£18.25 · 37% more, worseFs120 Hz +74%, worse
Qts0.74 −15%, better
Vas8.2 L −23%, better
BL5.7 T·m −7%
Xmax1.5 mm −50%, worse
Sensitivity93.6 dB +6.8, better
REDCATT61FHM-2
£19.93 · 49% more, worseFs44 Hz −36%, better
Qts0.52 −40%, better
Vas14.4 L +36%, worse
BL6.0 T·m –
Xmax3.2 mm +7%
Sensitivity85.3 dB −1.5
PRV Audio6MR200A-4
£20.13 · 51% more, worseFs138 Hz +100%, worse
Qts0.97 +11%, worse
Vas3.9 L −63%, better
BL4.9 T·m −19%, worse
Xmax2.6 mm −13%, worse
Sensitivity91.8 dB +5, better
PRV Audio6MB200-4
£22.37 · 68% more, worseFs124 Hz +79%, worse
Qts0.97 +11%, worse
Vas4.0 L −63%, better
BL5.8 T·m −5%
Xmax4.8 mm +60%, better
Sensitivity90.7 dB +3.9, better
PRV Audio6MR250B-4
£26.11 · 96% more, worseFs143 Hz +107%, worse
Qts0.82 −6%
Vas4 L −62%, better
BL5.8 T·m −5%
Xmax3.3 mm +8%
Sensitivity93.4 dB +6.6, better
MonacorSPH-174KE
£29.31 · 119% more, worseFs42 Hz −39%, better
Qts0.51 −41%, better
Vas26 L +145%, worse
BL5.9 T·m −3%
Xmax3 mm –
Sensitivity86.8 dB –
PRV Audio6FR200
£47.27 · 254% more, worseFs112 Hz +62%, worse
Qts1.29 +48%, worse
Vas6.9 L −35%, better
BL5.2 T·m −15%, worse
Xmax3.5 mm +17%, better
Sensitivity90.4 dB +3.6, better
WavecorWF146WA06
£53.11 · 298% more, worseFs40 Hz −42%, better
Qts0.36 −59%, better
Vas16.6 L +57%, worse
BL6.3 T·m +3%
Xmax3 mm –
Sensitivity86.5 dB –
WavecorWF146WA02
£57.60 · 331% more, worseFs58 Hz −16%, better
Qts0.51 −41%, better
Vas10 L −6%
BL6.4 T·m +5%
Xmax3 mm –
Sensitivity87.6 dB +0.8
WavecorWF146WA01
£57.60 · 331% more, worseFs56 Hz −19%, better
Qts0.42 −52%, better
Vas10 L −6%
BL5.1 T·m −16%, worse
Xmax3 mm –
Sensitivity87.9 dB +1.1
B&C6CXN36
£116.15 · 770% more, worseFs90 Hz +30%, worse
Qts0.95 +9%
Vas7.5 L −29%, better
BL5.3 T·m −12%, worse
Xmax5 mm +67%, better
Sensitivity88.7 dB +1.9
Scanspeak15M/4531K00
£150.70 · 1028% more, worseFs42 Hz −39%, better
Qts0.27 −69%, better
Vas16 L +51%, worse
BL6 T·m –
Xmax3 mm –
Sensitivity88.3 dB +1.5
Scanspeak18M/8631T00
£192.54 · 1342% more, worseFs65 Hz −6%
Qts0.71 −18%, better
Vas14 L +32%, worse
BL6.5 T·m +7%
Xmax3 mm –
Sensitivity88.7 dB +1.9
Scanspeak18M/4631T00
£192.54 · 1342% more, worseFs65 Hz −6%
Qts0.60 −31%, better
Vas14 L +32%, worse
BL5.6 T·m −8%
Xmax3 mm –
Sensitivity89.6 dB +2.8, better
PRV Audio6MR400-NDY-4
No current priceFs178 Hz +158%, worse
Qts0.87 –
Vas2.4 L −77%, better
BL6.0 T·m –
Xmax3.3 mm +8%
Sensitivity93.7 dB +6.9, better
No photo
LavoceCSF061.21
No current priceFs90 Hz +30%, worse
Qts0.67 −23%, better
Vas8.5 L −20%, better
BL6.1 T·m –
Xmax3.2 mm +7%
Sensitivity91 dB +4.2, better
CelestionFTX0617
No current priceFs100 Hz +45%, worse
Qts0.74 −15%, better
Vas7.4 L −30%, better
BL6.6 T·m +8%
Xmax3.5 mm +17%, better
Sensitivity91 dB +4.2, better
Dayton AudioE150MR-8
No current priceFs74 Hz +7%
Qts0.58 −33%, better
Vas8 L −25%, better
BL6.1 T·m –
Xmax2.7 mm −10%
Sensitivity88.9 dB +2.1, better
PRV Audio6MR200A
No current priceFs114 Hz +65%, worse
Qts1.17 +34%, worse
Vas3.2 L −70%, better
BL6.3 T·m –
Xmax2.6 mm −13%, worse
Sensitivity87.7 dB +0.9
PRV Audio69FR250-4
No current priceFs82 Hz +19%, worse
Qts0.70 −20%, better
Vas13.9 L +31%, worse
BL6.1 T·m –
Xmax3.5 mm +17%, better
Sensitivity92.2 dB +5.4, better
JensenC6V-4
No current priceFs110 Hz +59%, worse
Qts0.91 +5%
Vas6.1 L −42%, better
BL4.1 T·m −33%, worse
Xmax0.5 mm −83%, worse
Sensitivity90.3 dB +3.5, better
PRV Audio6MR400CF-4
No current priceFs131 Hz +90%, worse
Qts0.76 −13%, better
Vas4.1 L −61%, better
BL6.3 T·m +4%
Xmax3.5 mm +17%, better
Sensitivity92.8 dB +6, better
CIARECXE174
No current priceFs65 Hz −6%
Qts0.93 +7%
Vas15 L +42%, worse
BL3.3 T·m −45%, worse
Xmax2.1 mm −30%, worse
Sensitivity87.5 dB +0.7
Eighteen Sound6NMB900
No current priceFs95 Hz +38%, worse
Qts0.32 −63%, better
Vas10.3 L –
BL8.5 T·m +39%, better
Xmax3 mm –
Sensitivity95.9 dB +9.1, better
AccutonC168-6-990
No current priceFs55 Hz −20%, better
Qts0.21 −76%, better
Vas10.3 L –
BL11.7 T·m +91%, better
Xmax3 mm –
Sensitivity90.9 dB +4.1, better
REDCATT61XR
No current priceFs64 Hz −7%
Qts0.72 −17%, better
Vas8.6 L −19%, better
BL4.8 T·m −22%, worse
Xmax8.1 mm +170%, better
Sensitivity85.7 dB −1.1
PRV Audio6MB400-4
No current priceFs125 Hz +81%, worse
Qts0.52 −40%, better
Vas5.3 L −50%, better
BL6.6 T·m +8%
Xmax3 mm –
Sensitivity94.7 dB +7.9, better
No photo
PHL Audio1660NDM-SQ2
No current priceFs360 Hz +422%, worse
Qts0.90 +3%
Vas0.5 L −95%, better
BL12.5 T·m +105%, better
Xmax2.5 mm −17%, worse
Sensitivity95.8 dB +9, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports4.8 out of 519 ratings · Checked 25 Oct 2026Read reviews on SoundImports
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
SoundImports Import VAT and duty may apply | £13.36, the lowest price | 33 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr