CelestionTF1525
£79.00 · 55% less, betterFs48 Hz +130%, worse
Qts0.49 –
Vas148.4 L −24%, better
BL14.6 T·m −12%, worse
Xmax4.5 mm −63%, worse
Sensitivity96.6 dB +9.6, better
15-inch LF driver · 64 mm voice coil · 300 W
GRS 15SSW-4HE 4Ω
4 Ω · 20–300 Hz
£175.79
SteadySoundImports · 29 in stock · Ships from Netherlands · All 1 offer
- Fs
- 21Hz
- Xmax
- 12.3mm
- SPL
- 87dB
- Pe
- 300W
- BL
- 16.6T·m
- Vd
- 1008cm³
- Qts
- 0.49
- Vas
- 197L
GRS 15SSW-4HE is a 15-inch 4 ohm LF driver rated at 300 W RMS. The validated T/S data includes Fs 21 Hz, Qts 0.49, Vas 196.5 L, Xmax 12.3 mm, sensitivity 87 dB, plus 1008 cm³ Vd and 38 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 £175.79.
The published T/S values agree with each other
Thiele/Small
- Fs
- 21Hz
- Qts
- 0.49
- Qes
- 0.55
- Qms
- 4.3
- Vas
- 196.5L
- Re
- 4.2Ω
- Le
- 3.70mH
Motor and cone
- BL
- 16.6T·m
- Sd
- 819cm²
- Mms
- 284g
- Xmax
- 12.3mm
- Vd †
- 1008cm³
- Voice coil
- 64mm
Power and response
- Sensitivity †
- 87dB
- Manufacturer sensitivity
- 90dB
- Power
- 300W
- Impedance
- 4Ω
- Range
- 20–300Hz
- EBP †
- 38 · Leans sealed
Size and mounting
- Diameter
- 389.9mm
- Cutout
- 353.8mm
- Bolt circle
- 373.4mm
- Depth
- 188.0mm
Other published values
- Cms
- 0.21mm/N
- Power Peak
- 600
Sensitivity shows 87.0 dB, calculated from the T/S values. GRS publishes 90.0 dB, 3.0 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else GRS lists
LF · Primary · 15″
- BL
- 16.6T·m
- Fs
- 21Hz
- Le
- 3.70mH
- Re
- 4.2Ω
- Sd
- 819cm²
- Cms
- 0.21mm/N
- Mms
- 284g
- Qes
- 0.55
- Qms
- 4.3
- Qts
- 0.49
- SPL
- 87dB
- Vas
- 196.5L
- Xmax
- 12.3mm
- Power
- 300W
- Impedance
- 4Ω
- Power Peak
- 600
- Sensitivity
- 90dB
- Low limit
- 20Hz
- Calculated sensitivity †
- 87dB
- High limit
- 300Hz
- Manufacturer sensitivity
- 90dB
- Voice coil
- 64mm
- Diameter
- 389.9mm
- Depth
- 188.0mm
- Cutout
- 353.8mm
- Bolt circle
- 373.4mm
02
Compare
Same-size drivers, compared with the 15SSW-4HE. Clear differences are green when better and red when worse.
This driver15SSW-4HE
Best price
£175.79
Fs
21 Hz
Qts
0.49
Vas
196.5 L
BL
16.6 T·m
Xmax
12.3 mm
Sensitivity
87 dB
Power
300 W
SB AudienceBIANCO-15MW200
£79.50 · 55% less, betterFs44 Hz +113%, worse
Qts0.58 +18%, worse
Vas153.3 L −22%, better
BL15.9 T·m −4%
Xmax5.9 mm −52%, worse
Sensitivity95.3 dB +8.3, better
SB AudienceBIANCO-15W200
£93.10 · 47% less, betterFs47 Hz +127%, worse
Qts0.54 +10%, worse
Vas123.5 L −37%, better
BL17 T·m –
Xmax8.5 mm −31%, worse
Sensitivity95.5 dB +8.5, better
SB AudienceBIANCO-15MW350
£94.10 · 46% less, betterFs39 Hz +88%, worse
Qts0.48 –
Vas157.5 L −20%, better
BL16.9 T·m –
Xmax7.4 mm −40%, worse
Sensitivity94.8 dB +7.8, better
Beyma15CMV2
£95.00 · 46% less, betterFs49 Hz +137%, worse
Qts0.49 –
Vas104 L −47%, better
BL18.8 T·m +13%, better
Xmax7 mm −43%, worse
Sensitivity95.5 dB +8.5, better
CelestionTF1525E
£99.00 · 44% less, betterFs48 Hz +129%, worse
Qts0.47 −3%
Vas141.8 L −28%, better
BL17.8 T·m +7%
Xmax5.3 mm −57%, worse
Sensitivity96.6 dB +9.6, better
MonacorTF1525E/4
£113.03 · 36% less, betterFs48 Hz +129%, worse
Qts0.47 −3%
Vas141.8 L −28%, better
BL17.8 T·m +7%
Xmax5.3 mm −57%, worse
Sensitivity96.6 dB +9.6, better
SB AudienceBIANCO-15OB350
£117.18 · 33% less, betterFs34 Hz +64%, worse
Qts0.57 +16%, worse
Vas212.7 L +8%
BL16.5 T·m –
Xmax11.0 mm −10%, worse
Sensitivity93.5 dB +6.5, better
SB AudienceBIANCO-15SW400
£126.45 · 28% less, betterFs41 Hz +98%, worse
Qts0.48 –
Vas111.5 L −43%, better
BL19.8 T·m +19%, better
Xmax9.2 mm −25%, worse
Sensitivity94 dB +7, better
RCFL15P530
£144.13 · 18% less, betterFs45 Hz +117%, worse
Qts0.48 –
Vas160 L −19%, better
BL15.3 T·m −8%
Xmax7 mm −43%, worse
Sensitivity96.6 dB +9.6, better
Eighteen Sound15W500
£145.52 · 17% less, betterFs50 Hz +142%, worse
Qts0.52 +6%
Vas189 L −4%
BL12.6 T·m −24%, worse
Xmax4 mm −67%, worse
Sensitivity98.4 dB +11.4, better
FaitalPRO15PR300
£150.63 · 14% less, betterFs35 Hz +69%, worse
Qts0.48 –
Vas220.1 L +12%, worse
BL15.6 T·m −6%
Xmax5.2 mm −57%, worse
Sensitivity94.8 dB +7.8, better
Beyma15MCS500
£151.47 · 14% less, betterFs46 Hz +122%, worse
Qts0.48 –
Vas134 L −32%, better
BL17.6 T·m +6%
Xmax8 mm −35%, worse
Sensitivity96.2 dB +9.2, better
Sica15 PFS 3
£183.37 · 4% moreFs39 Hz +88%, worse
Qts0.45 −8%
Vas135.5 L −31%, better
BL17.5 T·m +5%
Xmax7 mm −43%, worse
Sensitivity93.9 dB +6.9, better
EminenceKAPPALITE 3015LF
£199.00 · 13% more, worseFs44 Hz +113%, worse
Qts0.46 −6%
Vas150.9 L −23%, better
BL17 T·m –
Xmax9.6 mm −22%, worse
Sensitivity96.3 dB +9.3, better
SB AudienceNERO-15MWN700D
£205.00 · 17% more, worseFs41 Hz +100%, worse
Qts0.46 −6%
Vas145.9 L −26%, better
BL17.7 T·m +7%
Xmax7.3 mm −41%, worse
Sensitivity95.4 dB +8.4, better
CIARE15.00SW
£226.15 · 29% more, worseFs29 Hz +40%, worse
Qts0.41 −16%, better
Vas113 L −42%, better
BL18.4 T·m +11%, better
Xmax13.5 mm +10%
Sensitivity90 dB +3, better
B&C15FHX76
£249.00 · 42% more, worseFs40 Hz +93%, worse
Qts0.43 −12%, better
Vas186 L −5%
BL15.5 T·m −7%
Xmax7 mm −43%, worse
Sensitivity96.1 dB +9.1, better
B&C15FCX76
£301.96 · 72% more, worseFs40 Hz +93%, worse
Qts0.44 −10%, better
Vas187 L −5%
BL15.6 T·m −6%
Xmax7.5 mm −39%, worse
Sensitivity96.1 dB +9.1, better
Dayton AudioRSS390HF-4
£318.09 · 81% more, worseFs20 Hz −6%
Qts0.43 −12%, better
Vas212 L +8%
BL15 T·m −10%
Xmax14 mm +14%, better
Sensitivity87 dB –
P.Audio15BMA-500B
No current priceFs51 Hz +146%, worse
Qts0.49 –
Vas121.2 L −38%, better
BL17.2 T·m +4%
Xmax5 mm −59%, worse
Sensitivity96.9 dB +9.9, better
P.Audio15BMA-400B
No current priceFs44 Hz +113%, worse
Qts0.46 −6%
Vas159.8 L −19%, better
BL16 T·m −4%
Xmax3.8 mm −70%, worse
Sensitivity96.5 dB +9.5, better
JensenBS15N350A-8
No current priceFs45 Hz +117%, worse
Qts0.46 −6%
Vas163.1 L −17%, better
BL15.2 T·m −8%
Xmax5.5 mm −55%, worse
Sensitivity96.8 dB +9.8, better
JensenBP15250-8
No current priceFs47 Hz +127%, worse
Qts0.51 +4%
Vas133.1 L −32%, better
BL15.3 T·m −8%
Xmax3.4 mm −72%, worse
Sensitivity95.8 dB +8.8, better
PRV Audio15SW2000-4
No current priceFs47 Hz +126%, worse
Qts0.44 −10%, better
Vas84.4 L −57%, better
BL18.2 T·m +10%
Xmax12.5 mm –
Sensitivity94.9 dB +7.9, better
EminenceFS15.30A8
No current priceFs45 Hz +117%, worse
Qts0.47 −4%
Vas133 L −32%, better
BL18.2 T·m +10%
Xmax7 mm −43%, worse
Sensitivity96 dB +9, better
LavoceFBASS15-20
No current priceFs40 Hz +93%, worse
Qts0.53 +8%
Vas234.4 L +19%, worse
BL12.8 T·m −23%, worse
Xmax4.3 mm −65%, worse
Sensitivity96.2 dB +9.2, better
P.AudioC15-400B-V2
No current priceFs42 Hz +103%, worse
Qts0.55 +12%, worse
Vas142.0 L −28%, better
BL15.6 T·m −6%
Xmax3.3 mm −74%, worse
Sensitivity94.4 dB +7.4, better
Acoustic EleganceSBP15-8
No current priceFs21 Hz –
Qts0.43 −12%, better
Vas364 L +85%, worse
BL16 T·m −4%
Xmax14 mm +14%, better
Sensitivity90.8 dB +3.8, better
Beyma15CXA400FE
No current priceFs40 Hz +93%, worse
Qts0.42 −14%, better
Vas191 L –
BL18.2 T·m +10%
Xmax6 mm −51%, worse
Sensitivity96.6 dB +9.6, better
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 54 ratings · Checked 24 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 | £175.79, the lowest price | 29 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr