CelestionTF1525
£79.00 · 29% less, betterFs48 Hz +19%, worse
Qts0.49 −7%
Vas148.4 L −45%, better
BL14.6 T·m +10%, better
Xmax4.5 mm +67%, better
Sensitivity96.6 dB –
15-inch LF driver · DELTA series · 400 W
Eminence DELTA-15A 8Ω
8 Ω · 48–4000 Hz
£149.00
35%Thomann · In stock · All 6 offers
- Fs
- 40Hz
- Xmax
- 2.7mm
- SPL
- 97dB
- Pe
- 400W
- BL
- 13.2T·m
- Vd
- 233cm³
- Qts
- 0.53
- Vas
- 271L
Eminence DELTA-15A is a 15-inch 8 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 40 Hz, Qts 0.53, Vas 270.7 L, Xmax 2.7 mm, sensitivity 96.9 dB, plus 233 cm³ Vd and 70 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 £110.70.
The published T/S values agree with each other
Thiele/Small
- Fs
- 40Hz
- Qts
- 0.53
- Qes
- 0.57
- Qms
- 8.1
- Vas
- 270.7L
- Re
- 6.3Ω
- Le
- 0.64mH
Motor and cone
- BL
- 13.2T·m
- Sd
- 865cm²
- Mms
- 62g
- Xmax
- 2.7mm
- Vd †
- 233cm³
Power and response
- Sensitivity †
- 96.9dB
- Manufacturer sensitivity
- 100dB
- Power
- 400W
- Impedance
- 8Ω
- Range
- 48–4000Hz
- EBP †
- 70 · Sealed or vented
Size and mounting
- Diameter
- 384.8mm
- Cutout
- 352.3mm
- Bolt circle
- 369.8mm
- Depth
- 153.7mm
- Weight
- 5.6kg
Other published values
- Cms
- 0.26mm/N
- Xmech
- 11.1
- Power Program
- 800
Sensitivity shows 96.9 dB, calculated from the T/S values. Eminence publishes 100.0 dB, 3.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eminence lists
LF · Primary · 15″
- BL
- 13.2T·m
- Fs
- 40Hz
- Le
- 0.64mH
- Re
- 6.3Ω
- Sd
- 865cm²
- Cms
- 0.26mm/N
- Mms
- 62g
- Qes
- 0.57
- Qms
- 8.1
- Qts
- 0.53
- SPL
- 96.9dB
- Vas
- 270.7L
- Xmax
- 2.7mm
- Xmech
- 11.1
- Power
- 400W
- Impedance
- 8Ω
- Sensitivity
- 100dB
- Low limit
- 48Hz
- Power Program
- 800
- Calculated sensitivity †
- 96.9dB
- High limit
- 4000Hz
- Manufacturer sensitivity
- 100dB
- Weight
- 5.6kg
- Diameter
- 384.8mm
- Depth
- 153.7mm
- Cutout
- 352.3mm
- Bolt circle
- 369.8mm
02
Compare
Same-size drivers, compared with the DELTA-15A. Clear differences are green when better and red when worse.
This driverDELTA-15A
Best price
£110.70
Fs
40 Hz
Qts
0.53
Vas
270.7 L
BL
13.2 T·m
Xmax
2.7 mm
Sensitivity
96.9 dB
Power
400 W
SB AudienceBIANCO-15MW200
£79.50 · 28% less, betterFs44 Hz +10%, worse
Qts0.58 +9%
Vas153.3 L −43%, better
BL15.9 T·m +20%, better
Xmax5.9 mm +119%, better
Sensitivity95.3 dB −1.6
EminenceBETA-15A
£85.00 · 23% less, betterFs35 Hz −13%, better
Qts0.58 +9%
Vas334.6 L +24%, worse
BL11.5 T·m −13%, worse
Xmax4 mm +48%, better
Sensitivity95.6 dB −1.3
£92.00 · 17% less, better
Fs41 Hz –
Qts0.57 +8%
Vas210 L −22%, better
BL13.5 T·m –
Xmax4.6 mm +70%, better
Sensitivity95.7 dB −1.2
SB AudienceBIANCO-15W200
£93.10 · 16% less, betterFs47 Hz +18%, worse
Qts0.54 –
Vas123.5 L −54%, better
BL17 T·m +29%, better
Xmax8.5 mm +216%, better
Sensitivity95.5 dB −1.4
PRV Audio15W1000
£104.62 · 5% less, betterFs40 Hz –
Qts0.68 +28%, worse
Vas206.1 L −24%, better
BL14.5 T·m +10%, better
Xmax6.4 mm +136%, better
Sensitivity94.7 dB −2.2, worse
REDCATT15FHW
£108.01 · 2% lessFs24 Hz −40%, better
Qts0.60 +13%, worse
Vas221.2 L −18%, better
BL15.8 T·m +20%, better
Xmax4.8 mm +80%, better
Sensitivity88.9 dB −8, worse
EminenceDELTA 15LF-4
£113.70 · 3% moreFs40 Hz –
Qts0.49 −8%
Vas253.9 L −6%
BL10.3 T·m −22%, worse
Xmax6.0 mm +121%, better
Sensitivity96.9 dB –
SB AudienceBIANCO-15OB350
£117.18 · 6% more, worseFs34 Hz −15%, better
Qts0.57 +8%
Vas212.7 L −21%, better
BL16.5 T·m +25%, better
Xmax11.0 mm +308%, better
Sensitivity93.5 dB −3.4, worse
EminenceKAPPA 15C
£125.67 · 14% more, worseFs31 Hz −23%, better
Qts0.25 −53%, better
Vas329.9 L +22%, worse
BL14.7 T·m +11%, better
Xmax2.4 mm −11%, worse
Sensitivity98 dB +1.1
EminenceLEGEND CA154
£132.42 · 20% more, worseFs51 Hz +28%, worse
Qts0.49 −8%
Vas108.2 L −60%, better
BL12.2 T·m −7%
Xmax5 mm +85%, better
Sensitivity96.3 dB −0.6
EminenceDELTA PRO 15A
£140.63 · 27% more, worseFs42 Hz +5%
Qts0.40 −25%, better
Vas243.5 L −10%, better
BL14.5 T·m +10%
Xmax4.3 mm +59%, better
Sensitivity98.2 dB +1.3
RCFL15P530
£144.13 · 30% more, worseFs45 Hz +13%, worse
Qts0.48 −9%
Vas160 L −41%, better
BL15.3 T·m +16%, better
Xmax7 mm +159%, better
Sensitivity96.6 dB –
Eighteen Sound15W500
£145.52 · 31% more, worseFs50 Hz +25%, worse
Qts0.52 –
Vas189 L −30%, better
BL12.6 T·m −5%
Xmax4 mm +48%, better
Sensitivity98.4 dB +1.5
FaitalPRO15PR300
£150.63 · 36% more, worseFs35 Hz −13%, better
Qts0.48 −9%
Vas220.1 L −19%, better
BL15.6 T·m +18%, better
Xmax5.2 mm +94%, better
Sensitivity94.8 dB −2.1, worse
BishopSoundBWP15/4/V2
£159.00 · 44% more, worseFs44 Hz +10%, worse
Qts0.47 −11%, better
Vas89.2 L −67%, better
BL14.8 T·m +12%, better
Xmax7 mm +159%, better
Sensitivity94 dB −2.9, worse
EminenceLEGEND BP 1525
£161.00 · 45% more, worseFs32 Hz −20%, better
Qts0.48 −9%
Vas397 L +47%, worse
BL13.1 T·m –
Xmax6.2 mm +130%, better
Sensitivity96.2 dB −0.7
GRS15SSW-4HE
£175.79 · 59% more, worseFs21 Hz −48%, better
Qts0.49 −8%
Vas196.5 L −27%, better
BL16.6 T·m +26%, better
Xmax12.3 mm +356%, better
Sensitivity87 dB −9.9, worse
B&C15FHX76
£249.00 · 125% more, worseFs40 Hz –
Qts0.43 −19%, better
Vas186 L −31%, better
BL15.5 T·m +17%, better
Xmax7 mm +159%, better
Sensitivity96.1 dB −0.8
PRV Audio15SW2000
£251.15 · 127% more, worseFs53 Hz +32%, worse
Qts0.55 +4%
Vas61.5 L −77%, better
BL23.2 T·m +76%, better
Xmax12.5 mm +363%, better
Sensitivity94.1 dB −2.8, worse
B&C15FCX76
£301.96 · 173% more, worseFs40 Hz –
Qts0.44 −17%, better
Vas187 L −31%, better
BL15.6 T·m +18%, better
Xmax7.5 mm +178%, better
Sensitivity96.1 dB −0.8
Dayton AudioRSS390HF-4
£318.09 · 187% more, worseFs20 Hz −51%, better
Qts0.43 −19%, better
Vas212 L −22%, better
BL15 T·m +14%, better
Xmax14 mm +419%, better
Sensitivity87 dB −9.9, worse
PeerlessSTW-350F188PR01-04
£485.60 · 339% more, worseFs23 Hz −43%, better
Qts0.53 –
Vas31.4 L −88%, better
BL22.4 T·m +70%, better
Xmax22.4 mm +730%, better
Sensitivity80.5 dB −16.4, worse
LavoceFBASS15-20
No current priceFs40 Hz –
Qts0.53 –
Vas234.4 L −13%, better
BL12.8 T·m −3%
Xmax4.3 mm +59%, better
Sensitivity96.2 dB −0.7
P.AudioC15-400B-V2
No current priceFs42 Hz +5%
Qts0.55 +4%
Vas142.0 L −48%, better
BL15.6 T·m +18%, better
Xmax3.3 mm +20%, better
Sensitivity94.4 dB −2.5, worse
JensenBP15250-8
No current priceFs47 Hz +18%, worse
Qts0.51 −4%
Vas133.1 L −51%, better
BL15.3 T·m +16%, better
Xmax3.4 mm +26%, better
Sensitivity95.8 dB −1.1
PRV Audio15W700
No current priceFs32 Hz −21%, better
Qts0.62 +17%, worse
Vas308.1 L +14%, worse
BL14.0 T·m +6%
Xmax6.9 mm +154%, better
Sensitivity93.8 dB −3.1, worse
JensenBS15N350A-8
No current priceFs45 Hz +13%, worse
Qts0.46 −13%, better
Vas163.1 L −40%, better
BL15.2 T·m +15%, better
Xmax5.5 mm +104%, better
Sensitivity96.8 dB –
Acoustic EleganceIB15AU-8
No current priceFs20 Hz −49%, better
Qts0.62 +17%, worse
Vas387 L +43%, worse
BL12.5 T·m −5%
Xmax18 mm +567%, better
Sensitivity88.8 dB −8.1, worse
P.Audio15BMA-400B
No current priceFs44 Hz +10%, worse
Qts0.46 −13%, better
Vas159.8 L −41%, better
BL16 T·m +21%, better
Xmax3.8 mm +39%, better
Sensitivity96.5 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann4.5 out of 5128 ratings · Checked 26 Oct 2026Read reviews on Thomann
- Parts Express4.6 out of 517 ratings · Checked 26 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 |
|---|---|---|---|---|
Thomann | £149.00, the lowest price | In stock | Visit shop at Thomann | |
Blue Aran 4-6 weeks | £110.00 | Usually available in 4-6 weeks | Visit shop at Blue Aran | |
Lean Audio | £115.07 | Out of stock | Visit shop at Lean Audio | |
Lean Business | £115.07 | Out of stock | Visit shop at Lean Business | |
Parts Express Import VAT and duty may apply | £110.70 | 20 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 6 OctThomann£153.00 → £149.00Down 2.6% from £153.00
- 28 SepThomann£152.00 → £153.00Up 0.7% from £152.00
- 20 SepThomann£153.00 → £152.00Down 0.7% from £153.00