GRS6SMP-8
£21.15 · 16% less, betterFs47 Hz –
Qts0.45 −4%
Vas14.5 L −28%, better
BL8.4 T·m +21%, better
Xmax5 mm −8%
Sensitivity86.5 dB −1.5
6.5-inch LF driver · SDS series · 60 W
Peerless SDS-P830657 8Ω
8 Ω
£25.30
44%SoundImports · 324 in stock · Ships from Netherlands · All 3 offers
- Fs
- 48Hz
- Xmax
- 5.5mm
- SPL
- 88dB
- Pe
- 60W
- BL
- 6.9T·m
- Vd
- 77cm³
- Qts
- 0.47
- Vas
- 20L
Peerless SDS-P830657 is a 6.5-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 48 Hz, Qts 0.47, Vas 20.1 L, Xmax 5.5 mm, sensitivity 88 dB, plus 77 cm³ Vd and 85 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 £25.30.
The published T/S values agree with each other
Thiele/Small
- Fs
- 48Hz
- Qts
- 0.47
- Qes
- 0.56
- Qms
- 2.7
- Vas
- 20.1L
- Re
- 5.9Ω
- Le
- 0.59mH
Motor and cone
- BL
- 6.9T·m
- Sd
- 141cm²
- Mms
- 15g
- Xmax
- 5.5mm
- Vd †
- 77cm³
Power and response
- Sensitivity †
- 88dB
- Manufacturer sensitivity
- 89dB
- Power
- 60W
- Impedance
- 8Ω
- EBP †
- 85 · Sealed or vented
Size and mounting
- Weight
- 0.8kg
Other published values
- Cms
- 0.72mm/N
Sensitivity shows 88.0 dB, calculated from the T/S values. Peerless publishes 89.0 dB, 1.0 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Peerless lists
LF · Primary · 6.496062992125984″
- BL
- 6.9T·m
- Fs
- 48Hz
- Le
- 0.59mH
- Re
- 5.9Ω
- Sd
- 141cm²
- Cms
- 0.72mm/N
- Mms
- 15g
- Qes
- 0.56
- Qms
- 2.7
- Qts
- 0.47
- SPL
- 88dB
- Vas
- 20.1L
- Xmax
- 5.5mm
- Power
- 60W
- Impedance
- 8Ω
- Sensitivity
- 89dB
- Calculated sensitivity †
- 88dB
- Manufacturer sensitivity
- 89dB
- Weight
- 0.8kg
02
Compare
Same-size drivers, compared with the SDS-P830657. Clear differences are green when better and red when worse.
This driverSDS-P830657
Best price
£25.30
Fs
48 Hz
Qts
0.47
Vas
20.1 L
BL
6.9 T·m
Xmax
5.5 mm
Sensitivity
88 dB
Power
60 W
FaitalPRO6FE125
£26.87 · 6% more, worseFs61 Hz +27%, worse
Qts0.55 +17%, worse
Vas15.1 L −25%, better
BL6.8 T·m –
Xmax5.3 mm −4%
Sensitivity89.6 dB +1.6
FaitalPRO6FE100
£27.18 · 7% more, worseFs61 Hz +27%, worse
Qts0.55 +17%, worse
Vas15.1 L −25%, better
BL6.8 T·m –
Xmax5.3 mm −4%
Sensitivity89.6 dB +1.6
CIAREHW159
£32.10 · 27% more, worseFs53 Hz +10%, worse
Qts0.49 +4%
Vas19.4 L −3%
BL6.3 T·m −9%
Xmax5.8 mm +6%
Sensitivity88.8 dB +0.8
REDCATT61FHM-1
£40.21 · 59% more, worseFs37 Hz −23%, better
Qts0.49 +4%
Vas28.2 L +40%, worse
BL6.6 T·m −5%
Xmax6.3 mm +15%, better
Sensitivity86.4 dB −1.6
CIAREHW161N
£43.93 · 74% more, worseFs47 Hz –
Qts0.37 −21%, better
Vas19.9 L –
BL7.4 T·m +7%
Xmax5 mm −8%
Sensitivity88.6 dB +0.6
Beyma6B30
£50.65 · 100% more, worseFs56 Hz +17%, worse
Qts0.50 +6%
Vas15.6 L −22%, better
BL6.8 T·m –
Xmax5.5 mm –
Sensitivity88.6 dB +0.6
Scanspeak18W/8424G00
£54.21 · 114% more, worseFs54 Hz +13%, worse
Qts0.45 −4%
Vas20.3 L –
BL6.6 T·m −5%
Xmax2.6 mm −52%, worse
Sensitivity90 dB +2, better
Sica6.5 H 1.5 CP
£56.52 · 123% more, worseFs45 Hz −5%
Qts0.42 −11%, better
Vas20.2 L –
BL7.0 T·m –
Xmax6 mm +10%
Sensitivity88.2 dB –
Scanspeak18W/8434G00
£57.57 · 128% more, worseFs50 Hz +4%
Qts0.43 −9%
Vas19.5 L –
BL7.2 T·m +4%
Xmax4.2 mm −23%, worse
Sensitivity89.3 dB +1.3
MonacorSPH-175HQ
£69.27 · 174% more, worseFs39 Hz −19%, better
Qts0.42 −11%, better
Vas33 L +64%, worse
BL6.4 T·m −8%
Xmax5.5 mm –
Sensitivity88 dB –
Dayton AudioRS180-4
£70.20 · 177% more, worseFs38 Hz −20%, better
Qts0.46 –
Vas21.2 L +5%
BL4.7 T·m −32%, worse
Xmax6 mm +10%
Sensitivity85.1 dB −2.9, worse
Dayton AudioRS180S-8
£79.33 · 214% more, worseFs38 Hz −21%, better
Qts0.36 −23%, better
Vas23 L +14%, worse
BL7.3 T·m +5%
Xmax6 mm +10%
Sensitivity86 dB −2, worse
FountekFW168K
£88.66 · 250% more, worseFs49 Hz –
Qts0.43 −9%
Vas15.1 L −25%, better
BL7.9 T·m +14%, better
Xmax5 mm −8%
Sensitivity87.2 dB −0.8
SEASH1217-08 CA18RLY
£91.43 · 261% more, worseFs42 Hz −13%, better
Qts0.47 –
Vas32 L +59%, worse
BL5.6 T·m −19%, worse
Xmax5 mm −8%
Sensitivity88.3 dB –
£126.74 · 401% more, worse
Fs43 Hz −10%, better
Qts0.37 −21%, better
Vas22 L +9%
BL6.9 T·m –
Xmax6 mm +10%
Sensitivity87.9 dB –
Scanspeak15W/8530K01
£157.04 · 521% more, worseFs38 Hz −21%, better
Qts0.50 +6%
Vas17 L −15%, better
BL5.8 T·m −16%, worse
Xmax6.5 mm +19%, better
Sensitivity84.3 dB −3.7, worse
AccutonC168-6-890
£929.25 · 3573% more, worseFs41 Hz −15%, better
Qts0.44 −6%
Vas15 L −25%, better
BL7.5 T·m +8%
Xmax5 mm −8%
Sensitivity85.3 dB −2.7, worse
HiViS6.5RMKII
No current priceFs52 Hz +8%
Qts0.48 –
Vas15.7 L −22%, better
BL6.4 T·m −8%
Xmax5.8 mm +6%
Sensitivity88.1 dB –
Tang BandW6-1916
No current priceFs60 Hz +25%, worse
Qts0.46 –
Vas23.7 L +18%, worse
BL5.8 T·m −16%, worse
Xmax5 mm −8%
Sensitivity91.2 dB +3.2, better
HiViS6.5
No current priceFs47 Hz –
Qts0.42 −11%, better
Vas18.4 L −8%
BL6.4 T·m −8%
Xmax5.8 mm +6%
Sensitivity88.1 dB –
HiViF6N
No current priceFs48 Hz –
Qts0.43 −9%
Vas19.1 L −5%
BL7.3 T·m +5%
Xmax4.5 mm −18%, worse
Sensitivity88.7 dB +0.7
HiViE6.5N
No current priceFs43 Hz −10%, better
Qts0.40 −15%, better
Vas21 L +4%
BL7.1 T·m +3%
Xmax4.3 mm −22%, worse
Sensitivity87.2 dB −0.8
HiViSS6.5R
No current priceFs42 Hz −13%, better
Qts0.39 −17%, better
Vas21.6 L +7%
BL6.5 T·m −6%
Xmax5.8 mm +6%
Sensitivity87.7 dB –
CIARECW170
No current priceFs55 Hz +15%, worse
Qts0.47 –
Vas18 L −10%, better
BL4.6 T·m −33%, worse
Xmax4.3 mm −21%, worse
Sensitivity89.3 dB +1.3
WavecorWF182BD11
No current priceFs34 Hz −29%, better
Qts0.42 −11%, better
Vas24.3 L +21%, worse
BL8.2 T·m +18%, better
Xmax5.5 mm –
Sensitivity85.4 dB −2.6, worse
WavecorWF182BD19
No current priceFs34 Hz −29%, better
Qts0.42 −11%, better
Vas24.3 L +21%, worse
BL8.2 T·m +18%, better
Xmax5.5 mm –
Sensitivity85.4 dB −2.6, worse
Lii AudioFAST 6
No current priceFs63 Hz +31%, worse
Qts0.46 −3%
Vas22.9 L +14%, worse
BL4.3 T·m −38%, worse
Xmax6 mm +10%
Sensitivity92.5 dB +4.5, better
HiViD6.8B
No current priceFs43 Hz −10%, better
Qts0.45 −4%
Vas13.5 L −33%, better
BL8.9 T·m +29%, better
Xmax5.3 mm –
Sensitivity85.4 dB −2.6, worse
HiViW6
No current priceFs40 Hz −17%, better
Qts0.52 +11%, worse
Vas25.1 L +25%, worse
BL6.7 T·m −3%
Xmax4.3 mm −21%, worse
Sensitivity86 dB −2, worse
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 520 ratings · Checked 13 Oct 2026Read reviews on SoundImports
- Parts Express5.0 out of 54 ratings · Checked 13 Oct 2026Read reviews on Parts Express
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 | £25.30, the lowest price | 324 in stock | Visit shop at SoundImports | |
Willys-Hifi | £29.52 | 17% above the lowest price | Out of stock | Visit shop at Willys-Hifi |
Parts Express Import VAT and duty may apply | £17.57 | Back order | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr