GRS15PT-8
£52.97 · 62% less, betterFs28 Hz −33%, better
Qts0.41 –
Vas242.1 L –
BL20.2 T·m +39%, better
Xmax7.8 mm +81%, better
Sensitivity92.9 dB −5.3, worse
15-inch LF driver · DELTA PRO series · 400 W
Eminence DELTA PRO 15A 8Ω
8 Ω · 54–4200 Hz
£140.27
SteadyParts Express · 5 in stock · Ships from United States · All 3 offers
- Fs
- 42Hz
- Xmax
- 4.3mm
- SPL
- 98dB
- Pe
- 400W
- BL
- 14.5T·m
- Vd
- 368cm³
- Qts
- 0.40
- Vas
- 244L
Eminence DELTA PRO 15A is a 15-inch 8 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.40, Vas 243.5 L, Xmax 4.3 mm, sensitivity 98.2 dB, plus 368 cm³ Vd and 95 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 £140.27.
The published T/S values agree with each other
Thiele/Small
- Fs
- 42Hz
- Qts
- 0.40
- Qes
- 0.44
- Qms
- 4.7
- Vas
- 243.5L
- Re
- 5.7Ω
- Le
- 0.83mH
Motor and cone
- BL
- 14.5T·m
- Sd
- 856cm²
- Mms
- 61g
- Xmax
- 4.3mm
- Vd †
- 368cm³
Power and response
- Sensitivity †
- 98.2dB
- Manufacturer sensitivity
- 101.6dB
- Power
- 400W
- Impedance
- 8Ω
- Range
- 54–4200Hz
- EBP †
- 95 · Sealed or vented
Size and mounting
- Diameter
- 389.1mm
- Cutout
- 355.6mm
- Bolt circle
- 369.8mm
- Depth
- 153.9mm
- Weight
- 7.7kg
Other published values
- Cms
- 0.24mm/N
- Xmech
- 13.7
- Power Program
- 800
Sensitivity shows 98.2 dB, calculated from the T/S values. Eminence publishes 101.6 dB, 3.4 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eminence lists
LF · Primary · 15″
- BL
- 14.5T·m
- Fs
- 42Hz
- Le
- 0.83mH
- Re
- 5.7Ω
- Sd
- 856cm²
- Cms
- 0.24mm/N
- Mms
- 61g
- Qes
- 0.44
- Qms
- 4.7
- Qts
- 0.40
- SPL
- 98.2dB
- Vas
- 243.5L
- Xmax
- 4.3mm
- Xmech
- 13.7
- Power
- 400W
- Impedance
- 8Ω
- Sensitivity
- 101.6dB
- Low limit
- 54Hz
- Power Program
- 800
- Calculated sensitivity †
- 98.2dB
- High limit
- 4200Hz
- Manufacturer sensitivity
- 101.6dB
- Weight
- 7.7kg
- Diameter
- 389.1mm
- Depth
- 153.9mm
- Cutout
- 355.6mm
- Bolt circle
- 369.8mm
02
Compare
Same-size drivers, compared with the DELTA PRO 15A. Clear differences are green when better and red when worse.
This driverDELTA PRO 15A
Best price
£140.27
Fs
42 Hz
Qts
0.40
Vas
243.5 L
BL
14.5 T·m
Xmax
4.3 mm
Sensitivity
98.2 dB
Power
400 W
REDCATT154FIND
£82.98 · 41% less, betterFs38 Hz −10%
Qts0.40 –
Vas187.2 L −23%, better
BL18.1 T·m +25%, better
Xmax4.5 mm +5%
Sensitivity95.8 dB −2.4, worse
P.Audio15BM-300B-V3
£100.00 · 29% less, betterFs48 Hz +14%, worse
Qts0.40 –
Vas123.3 L −49%, better
BL19.2 T·m +32%, better
Xmax3.9 mm −9%
Sensitivity97 dB −1.2
EminenceKAPPA-15A
£125.35 · 11% less, betterFs33 Hz −21%, better
Qts0.32 −20%, better
Vas321.3 L +32%, worse
BL15.7 T·m +8%
Xmax4 mm −7%
Sensitivity97.5 dB −0.7
EminenceKAPPA PRO-15A
£138.03 · 2% lessFs47 Hz +12%, worse
Qts0.38 −5%
Vas167.7 L −31%, better
BL16.6 T·m +14%, better
Xmax3.2 mm −26%, worse
Sensitivity98.4 dB –
FaitalPRO15PR300
£150.80 · 8% more, worseFs35 Hz −17%, better
Qts0.48 +20%, worse
Vas220.1 L −10%
BL15.6 T·m +8%
Xmax5.2 mm +22%, better
Sensitivity94.8 dB −3.4, worse
REDCATT152FIND-2
£159.68 · 14% more, worseFs44 Hz +5%
Qts0.37 −8%
Vas128.5 L −47%, better
BL18.3 T·m +26%, better
Xmax4.5 mm +3%
Sensitivity96.6 dB −1.6
FaitalPRO15PR450
£165.97 · 18% more, worseFs35 Hz −17%, better
Qts0.35 −13%, better
Vas235.6 L −3%
BL16.6 T·m +14%, better
Xmax6 mm +40%, better
Sensitivity96.4 dB −1.8
CelestionFTR15-3070C
£166.00 · 18% more, worseFs41 Hz –
Qts0.38 −5%
Vas187.6 L −23%, better
BL17.3 T·m +20%, better
Xmax5.5 mm +28%, better
Sensitivity96.9 dB −1.3
Dayton AudioDCS385-4
£167.56 · 19% more, worseFs18 Hz −58%, better
Qts0.39 –
Vas311 L +28%, worse
BL15.4 T·m +6%
Xmax9.3 mm +116%, better
Sensitivity88 dB −10.2, worse
Eighteen Sound15W750
£186.09 · 33% more, worseFs39 Hz −7%
Qts0.37 −8%
Vas218 L −10%, better
BL17.6 T·m +21%, better
Xmax8 mm +86%, better
Sensitivity97.2 dB −1
Eighteen Sound15MB606
£216.00 · 54% more, worseFs43 Hz –
Qts0.35 −13%, better
Vas223 L −8%
BL15.1 T·m +4%
Xmax4.5 mm +5%
Sensitivity98.8 dB +0.6
B&C15FHX76
£249.00 · 78% more, worseFs40 Hz −5%
Qts0.43 +7%
Vas186 L −24%, better
BL15.5 T·m +7%
Xmax7 mm +63%, better
Sensitivity96.1 dB −2.1, worse
B&C15FCX76
£301.96 · 115% more, worseFs40 Hz −5%
Qts0.44 +10%
Vas187 L −23%, better
BL15.6 T·m +8%
Xmax7.5 mm +74%, better
Sensitivity96.1 dB −2.1, worse
Dayton AudioRSS390HF-4
£318.44 · 127% more, worseFs20 Hz −54%, better
Qts0.43 +7%
Vas212 L −13%, better
BL15 T·m +3%
Xmax14 mm +226%, better
Sensitivity87 dB −11.2, worse
Supravox380-2000 LC
£950.28 · 577% more, worseFs27 Hz −35%, better
Qts0.38 −4%
Vas461.0 L +89%, worse
BL14.4 T·m –
Xmax7 mm +63%, better
Sensitivity95.7 dB −2.5, worse
CelestionTF1530SL
No current priceFs46 Hz +10%, worse
Qts0.39 –
Vas140.1 L −42%, better
BL17.0 T·m +17%, better
Xmax4 mm −7%
Sensitivity96.9 dB −1.3
No current price
Fs37 Hz −12%, better
Qts0.39 –
Vas236 L −3%
BL15.9 T·m +10%
Xmax6.5 mm +51%, better
Sensitivity96.6 dB −1.6
P.Audio15BM-500B-V3
No current priceFs41 Hz –
Qts0.37 −8%
Vas183.4 L −25%, better
BL17.8 T·m +22%, better
Xmax4.8 mm +12%, better
Sensitivity96.9 dB −1.3
Sica15 S 3 PL
No current priceFs33 Hz −21%, better
Qts0.38 −5%
Vas230 L −6%
BL17.1 T·m +18%, better
Xmax8 mm +86%, better
Sensitivity95.3 dB −2.9, worse
P.Audio15BM-400B-V3
No current priceFs48 Hz +14%, worse
Qts0.40 –
Vas123.3 L −49%, better
BL19.2 T·m +32%, better
Xmax3.9 mm −9%
Sensitivity97 dB −1.2
LavoceFBASS15-20
No current priceFs40 Hz −5%
Qts0.53 +33%, worse
Vas234.4 L −4%
BL12.8 T·m −12%, worse
Xmax4.3 mm –
Sensitivity96.2 dB −2, worse
P.Audio15BMA-400B
No current priceFs44 Hz +5%
Qts0.46 +15%, worse
Vas159.8 L −34%, better
BL16 T·m +10%, better
Xmax3.8 mm −13%, worse
Sensitivity96.5 dB −1.7
P.AudioEX15-500S
No current priceFs45 Hz +7%
Qts0.43 +7%
Vas136 L −44%, better
BL18.8 T·m +30%, better
Xmax4.5 mm +5%
Sensitivity96.2 dB −2, worse
Sica15 CX 3 PL P
No current priceFs45 Hz +6%
Qts0.40 –
Vas152.4 L −37%, better
BL17.3 T·m +19%, better
Xmax5.5 mm +28%, better
Sensitivity97.1 dB −1.1
Sica15 CX 3 PL T
No current priceFs45 Hz +6%
Qts0.40 –
Vas152.4 L −37%, better
BL17.3 T·m +19%, better
Xmax5.5 mm +28%, better
Sensitivity97.1 dB −1.1
REDCATT152FIND-1
No current priceFs37 Hz −12%, better
Qts0.44 +10%
Vas119 L −51%, better
BL18.4 T·m +27%, better
Xmax4.5 mm +5%
Sensitivity93.2 dB −5, worse
Beyma15CXA400FE
No current priceFs40 Hz −5%
Qts0.42 +5%
Vas191 L −22%, better
BL18.2 T·m +26%, better
Xmax6 mm +40%, better
Sensitivity96.6 dB −1.6
EminenceCANNABASS CB3015N-8
No current priceFs41 Hz −3%
Qts0.39 –
Vas162.9 L −33%, better
BL17.8 T·m +22%, better
Xmax7.2 mm +68%, better
Sensitivity96.1 dB −2.1, worse
P.AudioE15-300S-V2
No current priceFs44 Hz +5%
Qts0.36 −10%, better
Vas156.2 L −36%, better
BL20.1 T·m +38%, better
Xmax4.3 mm –
Sensitivity97.5 dB −0.7
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.6 out of 516 ratings · Checked 22 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 |
|---|---|---|---|---|
Parts Express Import VAT and duty may apply | £140.27, the lowest price | 5 in stock | Visit shop at Parts Express | |
Lean Audio | £153.34 | 9.3% above the lowest price | Out of stock | Visit shop at Lean Audio |
Best price over time
Tracked since 11 Sep