GRS6PT-8
£15.70 · 73% less, betterFs94 Hz +119%, worse
Qts0.72 +243%, worse
Vas9.5 L −26%, better
BL6.4 T·m +8%
Xmax4.2 mm –
Sensitivity91.7 dB +3, better
6-inch LF driver · Discovery series · 32 mm voice coil · 60 W
Scanspeak 15W/4434G00 4Ω
4 Ω
£61.74
6.2%Falcon Acoustics · In stock · All 5 offers
- Fs
- 43Hz
- Xmax
- 4.3mm
- SPL
- 89dB
- Pe
- 60W
- BL
- 5.9T·m
- Vd
- 34cm³
- Qts
- 0.21
- Vas
- 13L
Scanspeak 15W/4434G00 is a 6-inch 4 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 43 Hz, Qts 0.21, Vas 12.8 L, Xmax 4.3 mm, sensitivity 88.7 dB, plus 34 cm³ Vd and 195 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 £58.57.
The published T/S values agree with each other
Thiele/Small
- Fs
- 43Hz
- Qts
- 0.21
- Qes
- 0.22
- Qms
- 3.7
- Vas
- 12.8L
- Re
- 3Ω
- Le
- 0.50mH
Motor and cone
- BL
- 5.9T·m
- Sd
- 80cm²
- Mms
- 10g
- Xmax
- 4.3mm
- Vd †
- 34cm³
- Voice coil
- 32mm
Power and response
- Sensitivity †
- 88.7dB
- Manufacturer sensitivity
- 89.5dB
- Power
- 60W
- Impedance
- 4Ω
- Min. impedance
- 4.1Ω
- EBP †
- 195 · Leans vented
Size and mounting
- Diameter
- 150mm
Other published values
- Cms
- 1.43mm/N
- Rms
- 0.70kg/s
- Xmech
- 8
- Power Peak
- 120
† Calculated by bits from the published values
What this validation status means
Everything else Scanspeak lists
LF · Primary · 6″
- BL
- 5.9T·m
- Fs
- 43Hz
- Le
- 0.50mH
- Re
- 3Ω
- Sd
- 80cm²
- Cms
- 1.43mm/N
- Mms
- 10g
- Qes
- 0.22
- Qms
- 3.7
- Qts
- 0.21
- Rms
- 0.70kg/s
- SPL
- 88.7dB
- Vas
- 12.8L
- Xmax
- 4.3mm
- Xmech
- 8
- Power
- 60W
- Impedance
- 4Ω
- Power Peak
- 120
- Sensitivity
- 89.5dB
- Calculated sensitivity †
- 88.7dB
- Manufacturer sensitivity
- 89.5dB
- Min. impedance
- 4.1Ω
- Voice coil
- 32mm
- Diameter
- 150mm
02
Compare
Same-size drivers, compared with the 15W/4434G00. Clear differences are green when better and red when worse.
This driver15W/4434G00
Best price
£58.57
Fs
43 Hz
Qts
0.21
Vas
12.8 L
BL
5.9 T·m
Xmax
4.3 mm
Sensitivity
88.7 dB
Power
60 W
SB AcousticsSB13PFC25-8
£22.98 · 61% less, betterFs45 Hz +5%
Qts0.33 +57%, worse
Vas13.4 L +5%
BL6.2 T·m +5%
Xmax4.5 mm +5%
Sensitivity87 dB −1.7
SB AcousticsSB13PFCR25-8
£22.98 · 61% less, betterFs45 Hz +5%
Qts0.33 +57%, worse
Vas13.4 L +5%
BL6.2 T·m +5%
Xmax4.5 mm +5%
Sensitivity87 dB −1.7
SB AcousticsSB13PFC25-4
£22.98 · 61% less, betterFs44 Hz –
Qts0.29 +38%, worse
Vas13.4 L +5%
BL5.3 T·m −10%, worse
Xmax4.5 mm +5%
Sensitivity87.4 dB −1.3
SB AcousticsSB13PFCR25-4
£22.98 · 61% less, betterFs44 Hz –
Qts0.29 +38%, worse
Vas13.4 L +5%
BL5.3 T·m −10%, worse
Xmax4.5 mm +5%
Sensitivity87.4 dB −1.3
SB AcousticsSB13PFCR25-4-COAX
£44.29 · 24% less, betterFs43 Hz –
Qts0.27 +29%, worse
Vas14.4 L +12%, worse
BL5.1 T·m −14%, worse
Xmax4.7 mm +8%
Sensitivity87.8 dB −0.9
SB AcousticsSB13PFC25-4-COAX
£46.01 · 21% less, betterFs43 Hz –
Qts0.27 +29%, worse
Vas14.4 L +12%, worse
BL5.1 T·m −14%, worse
Xmax4.7 mm +8%
Sensitivity87.8 dB −0.9
CIARECW162
£47.61 · 19% less, betterFs40 Hz −7%
Qts0.21 –
Vas26 L +103%, worse
BL7.4 T·m +25%, better
Xmax7 mm +63%, better
Sensitivity90.6 dB +1.9
Scanspeak15W/4424G00
£53.55 · 9% less, betterFs46 Hz +7%
Qts0.24 +14%, worse
Vas13.8 L +8%
BL5.2 T·m −12%, worse
Xmax2.8 mm −35%, worse
Sensitivity89.2 dB +0.5
Scanspeak15W/8434G00
£56.10 · 4% lessFs45 Hz +5%
Qts0.25 +19%, worse
Vas12.8 L –
BL7.3 T·m +24%, better
Xmax4.2 mm –
Sensitivity88.4 dB –
CIAREHWB130
£61.12 · 4% moreFs46 Hz +7%
Qts0.28 +33%, worse
Vas12.5 L –
BL5.6 T·m −5%
Xmax4.5 mm +5%
Sensitivity88.3 dB –
CIARECX171
£78.29 · 34% more, worseFs67 Hz +56%, worse
Qts0.55 +162%, worse
Vas13.6 L +6%
BL4.6 T·m −22%, worse
Xmax4.3 mm –
Sensitivity90 dB +1.3
WavecorWF152BD13
£98.00 · 67% more, worseFs50 Hz +16%, worse
Qts0.33 +57%, worse
Vas9.2 L −28%, better
BL6.3 T·m +8%
Xmax4.5 mm +5%
Sensitivity87.3 dB −1.4
Eighteen Sound6ND430
£109.14 · 86% more, worseFs64 Hz +49%, worse
Qts0.24 +14%, worse
Vas12.2 L −5%
BL7.8 T·m +32%, better
Xmax5 mm +16%, better
Sensitivity93.1 dB +4.4, better
WavecorWF152BD09
£109.96 · 88% more, worseFs52 Hz +21%, worse
Qts0.34 +62%, worse
Vas8.6 L −33%, better
BL5.8 T·m –
Xmax4.5 mm +5%
Sensitivity87.4 dB −1.3
WavecorWF152BD03
£142.76 · 144% more, worseFs56 Hz +29%, worse
Qts0.35 +67%, worse
Vas9.2 L −28%, better
BL5.8 T·m –
Xmax4.5 mm +5%
Sensitivity88.4 dB –
PRV Audio6MR600X-NDY
£188.35 · 222% more, worseFs95 Hz +121%, worse
Qts0.22 +5%
Vas5.6 L −57%, better
BL15.8 T·m +168%, better
Xmax3.5 mm −19%, worse
Sensitivity95.4 dB +6.7, better
Scanspeak15WU/4741T00
£261.31 · 346% more, worseFs34 Hz −21%, better
Qts0.23 +10%
Vas20 L +56%, worse
BL6 T·m –
Xmax9 mm +109%, better
Sensitivity87 dB −1.7
£293.02 · 400% more, worse
Fs38 Hz −12%, better
Qts0.36 +71%, worse
Vas14 L +9%
BL5.5 T·m −7%
Xmax4 mm −7%
Sensitivity84.5 dB −4.2, worse
£385.12 · 558% more, worse
Fs38 Hz −12%, better
Qts0.42 +100%, worse
Vas14 L +9%
BL5.1 T·m −14%, worse
Xmax4 mm −7%
Sensitivity83.9 dB −4.8, worse
AccutonC173-6-096
£837.27 · 1330% more, worseFs50 Hz +16%, worse
Qts0.22 +5%
Vas17.0 L +33%, worse
BL11.4 T·m +93%, better
Xmax5 mm +16%, better
Sensitivity91.5 dB +2.8, better
Dayton AudioPS65LP-4
No current priceFs67 Hz +57%, worse
Qts0.24 +14%, worse
Vas17.3 L +35%, worse
BL6 T·m –
Xmax4 mm −7%
Sensitivity95.1 dB +6.4, better
AccutonC168-6-990
No current priceFs55 Hz +28%, worse
Qts0.21 –
Vas10.3 L −20%, better
BL11.7 T·m +98%, better
Xmax3 mm −30%, worse
Sensitivity90.9 dB +2.2, better
WavecorWF152BD06
No current priceFs45 Hz +3%
Qts0.29 +38%, worse
Vas11.5 L −10%, better
BL6.3 T·m +8%
Xmax4.5 mm +5%
Sensitivity87.3 dB −1.4
WavecorWF152BD14
No current priceFs45 Hz +3%
Qts0.29 +38%, worse
Vas11.5 L −10%, better
BL6.3 T·m +8%
Xmax4.5 mm +5%
Sensitivity87.3 dB −1.4
Lii AudioST-5
No current priceFs56 Hz +30%, worse
Qts0.66 +215%, worse
Vas14.3 L +12%, worse
BL5.8 T·m –
Xmax4 mm −7%
Sensitivity86.7 dB −2, worse
CIAREHWL130
No current priceFs53 Hz +23%, worse
Qts0.43 +105%, worse
Vas11.2 L −13%, better
BL5.8 T·m –
Xmax4 mm −7%
Sensitivity87.6 dB −1.1
WavecorWF152BD10
No current priceFs49 Hz +14%, worse
Qts0.32 +52%, worse
Vas9.6 L −25%, better
BL5.8 T·m –
Xmax4.5 mm +5%
Sensitivity87.4 dB −1.3
HiViD6.4+
No current priceFs44 Hz –
Qts0.36 +71%, worse
Vas13.9 L +9%
BL6.6 T·m +12%, better
Xmax4 mm −7%
Sensitivity86.5 dB −2.2, worse
Dayton AudioCFC180-4
No current priceFs52 Hz +21%, worse
Qts0.43 +105%, worse
Vas11.5 L −10%, better
BL6.8 T·m +15%, better
Xmax4 mm −7%
Sensitivity87.1 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
- SoundImports5.0 out of 51 rating · Checked 26 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 |
|---|---|---|---|---|
Falcon Acoustics | £61.74, the lowest price | In stock | Visit shop at Falcon Acoustics | |
Willys-Hifi | £65.84 | 6.6% above the lowest price | Stock not listed | Visit shop at Willys-Hifi |
SoundImports Import VAT and duty may apply | £58.57 | 24 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 1 OctWillys-Hifi£67.95 → £65.84Down 3.1% from £67.95
- 4 AugWillys-Hifi£65.95 → £67.95Up 3.0% from £65.95
- 2 JulWillys-Hifi£64.95 → £65.95Up 1.5% from £64.95