PeerlessFSL-1520R02-08
£66.20 · 22% less, betterFs43 Hz +23%, worse
Qts0.70 +21%, worse
Vas203 L −39%, better
BL11.8 T·m –
Xmax6.0 mm +49%, better
Sensitivity95.4 dB –
15-inch LF driver · BETA series · 300 W
Eminence BETA-15A 8Ω
8 Ω · 45–3700 Hz
£85.00
SteadyBlue Aran · 8+ in stock · All 5 offers
- Fs
- 35Hz
- Xmax
- 4mm
- SPL
- 96dB
- Pe
- 300W
- BL
- 11.5T·m
- Vd
- 329cm³
- Qts
- 0.58
- Vas
- 335L
Eminence BETA-15A is a 15-inch 8 ohm LF driver rated at 300 W RMS. The validated T/S data includes Fs 35 Hz, Qts 0.58, Vas 334.6 L, Xmax 4 mm, sensitivity 95.6 dB, plus 329 cm³ Vd and 56 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 £85.00.
The published T/S values agree with each other
Thiele/Small
- Fs
- 35Hz
- Qts
- 0.58
- Qes
- 0.63
- Qms
- 8.1
- Vas
- 334.6L
- Re
- 6.3Ω
- Le
- 1.10mH
Motor and cone
- BL
- 11.5T·m
- Sd
- 824cm²
- Mms
- 60g
- Xmax
- 4mm
- Vd †
- 329cm³
Power and response
- Sensitivity †
- 95.6dB
- Manufacturer sensitivity
- 98.2dB
- Power
- 300W
- Impedance
- 8Ω
- Range
- 45–3700Hz
- EBP †
- 56 · Sealed or vented
Size and mounting
- Diameter
- 384.8mm
- Cutout
- 352.3mm
- Bolt circle
- 369.8mm
- Depth
- 153.7mm
- Weight
- 4.0kg
Other published values
- Cms
- 0.35mm/N
- Xmech
- 11.6
- Power Program
- 600
Sensitivity shows 95.6 dB, calculated from the T/S values. Eminence publishes 98.2 dB, 2.6 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eminence lists
LF · Primary · 15″
- BL
- 11.5T·m
- Fs
- 35Hz
- Le
- 1.10mH
- Re
- 6.3Ω
- Sd
- 824cm²
- Cms
- 0.35mm/N
- Mms
- 60g
- Qes
- 0.63
- Qms
- 8.1
- Qts
- 0.58
- SPL
- 95.6dB
- Vas
- 334.6L
- Xmax
- 4mm
- Xmech
- 11.6
- Power
- 300W
- Impedance
- 8Ω
- Sensitivity
- 98.2dB
- Low limit
- 45Hz
- Power Program
- 600
- Calculated sensitivity †
- 95.6dB
- High limit
- 3700Hz
- Manufacturer sensitivity
- 98.2dB
- Weight
- 4.0kg
- Diameter
- 384.8mm
- Depth
- 153.7mm
- Cutout
- 352.3mm
- Bolt circle
- 369.8mm
02
Compare
Same-size drivers, compared with the BETA-15A. Clear differences are green when better and red when worse.
This driverBETA-15A
Best price
£85.00
Fs
35 Hz
Qts
0.58
Vas
334.6 L
BL
11.5 T·m
Xmax
4 mm
Sensitivity
95.6 dB
Power
300 W
CelestionTF1525
£79.00 · 7% less, betterFs48 Hz +36%, worse
Qts0.49 −15%, better
Vas148.4 L −56%, better
BL14.6 T·m +27%, better
Xmax4.5 mm +13%, better
Sensitivity96.6 dB +1
SB AudienceBIANCO-15MW200
£79.50 · 6% less, betterFs44 Hz +26%, worse
Qts0.58 –
Vas153.3 L −54%, better
BL15.9 T·m +38%, better
Xmax5.9 mm +48%, better
Sensitivity95.3 dB –
£92.00 · 8% more, worse
Fs41 Hz +17%, worse
Qts0.57 –
Vas210 L −37%, better
BL13.5 T·m +18%, better
Xmax4.6 mm +15%, better
Sensitivity95.7 dB –
MonacorSP-382PA
£92.94 · 9% more, worseFs25 Hz −29%, better
Qts0.75 +29%, worse
Vas270 L −19%, better
BL10.9 T·m −5%
Xmax3.5 mm −13%, worse
Sensitivity88.3 dB −7.3, worse
REDCATT15FHW
£108.01 · 27% more, worseFs24 Hz −31%, better
Qts0.60 +3%
Vas221.2 L −34%, better
BL15.8 T·m +37%, better
Xmax4.8 mm +21%, better
Sensitivity88.9 dB −6.7, worse
EminenceDELTA-15A
£110.70 · 30% more, worseFs40 Hz +14%, worse
Qts0.53 −9%
Vas270.7 L −19%, better
BL13.2 T·m +15%, better
Xmax2.7 mm −32%, worse
Sensitivity96.9 dB +1.3
EminenceDELTA 15B
£110.70 · 30% more, worseFs45 Hz +29%, worse
Qts0.61 +5%
Vas204 L −39%, better
BL17.6 T·m +53%, better
Xmax1.6 mm −60%, worse
Sensitivity96.5 dB +0.9
EminenceDELTA 15LF-4
£113.70 · 34% more, worseFs40 Hz +14%, worse
Qts0.49 −16%, better
Vas253.9 L −24%, better
BL10.3 T·m −10%, worse
Xmax6.0 mm +49%, better
Sensitivity96.9 dB +1.3
SB AudienceBIANCO-15OB350
£117.18 · 38% more, worseFs34 Hz –
Qts0.57 –
Vas212.7 L −36%, better
BL16.5 T·m +43%, better
Xmax11.0 mm +176%, better
Sensitivity93.5 dB −2.1, worse
EminenceKAPPA-15A
£125.67 · 48% more, worseFs33 Hz −6%
Qts0.32 −45%, better
Vas321.3 L −4%
BL15.7 T·m +37%, better
Xmax4 mm –
Sensitivity97.5 dB +1.9
EminenceLEGEND CA154
£132.42 · 56% more, worseFs51 Hz +46%, worse
Qts0.49 −16%, better
Vas108.2 L −68%, better
BL12.2 T·m +6%
Xmax5 mm +25%, better
Sensitivity96.3 dB +0.7
EminenceDELTA PRO 15A
£140.63 · 65% more, worseFs42 Hz +20%, worse
Qts0.40 −31%, better
Vas243.5 L −27%, better
BL14.5 T·m +26%, better
Xmax4.3 mm +7%
Sensitivity98.2 dB +2.6, better
Eighteen Sound15W500
£145.52 · 71% more, worseFs50 Hz +43%, worse
Qts0.52 −10%, better
Vas189 L −44%, better
BL12.6 T·m +10%
Xmax4 mm –
Sensitivity98.4 dB +2.8, better
EminenceLEGEND BP 1525
£161.00 · 89% more, worseFs32 Hz −9%
Qts0.48 −17%, better
Vas397 L +19%, worse
BL13.1 T·m +14%, better
Xmax6.2 mm +55%, better
Sensitivity96.2 dB +0.6
B&C15BG76
£262.92 · 209% more, worseFs44 Hz +26%, worse
Qts0.56 −3%
Vas68.4 L −80%, better
BL21.7 T·m +89%, better
Xmax9.6 mm +140%, better
Sensitivity91.8 dB −3.8, worse
LavoceFBASS15-20
No current priceFs40 Hz +14%, worse
Qts0.53 −9%
Vas234.4 L −30%, better
BL12.8 T·m +11%, better
Xmax4.3 mm +7%
Sensitivity96.2 dB +0.6
Acoustic EleganceIB15AU-8
No current priceFs20 Hz −42%, better
Qts0.62 +7%
Vas387 L +16%, worse
BL12.5 T·m +9%
Xmax18 mm +350%, better
Sensitivity88.8 dB −6.8, worse
PRV Audio15W700
No current priceFs32 Hz −9%
Qts0.62 +7%
Vas308.1 L −8%
BL14.0 T·m +21%, better
Xmax6.9 mm +72%, better
Sensitivity93.8 dB −1.8
Acoustic EleganceIB15AU-4
No current priceFs20 Hz −42%, better
Qts0.62 +7%
Vas387 L +16%, worse
BL8.8 T·m −24%, worse
Xmax18 mm +350%, better
Sensitivity88.8 dB −6.8, worse
No current price
Fs48 Hz +37%, worse
Qts0.70 +21%, worse
Vas203 L −39%, better
BL11 T·m −4%
Xmax3.5 mm −13%, worse
Sensitivity96.8 dB +1.2
P.AudioC15-400B-V2
No current priceFs42 Hz +20%, worse
Qts0.55 −5%
Vas142.0 L −58%, better
BL15.6 T·m +35%, better
Xmax3.3 mm −19%, worse
Sensitivity94.4 dB −1.2
Acoustic EleganceSBP15-4
No current priceFs21 Hz −39%, better
Qts0.43 −26%, better
Vas364 L +9%
BL11.1 T·m −3%
Xmax14 mm +250%, better
Sensitivity90.8 dB −4.8, worse
P.AudioGST-151200-V3
No current priceFs44 Hz +26%, worse
Qts0.51 −12%, better
Vas76.8 L −77%, better
BL23.1 T·m +101%, better
Xmax4.1 mm +3%
Sensitivity92.9 dB −2.7, worse
JensenBP15250-8
No current priceFs47 Hz +34%, worse
Qts0.51 −12%, better
Vas133.1 L −60%, better
BL15.3 T·m +33%, better
Xmax3.4 mm −15%, worse
Sensitivity95.8 dB –
Acoustic EleganceTD15M-4
No current priceFs35 Hz –
Qts0.33 −43%, better
Vas312 L −7%
BL11.8 T·m –
Xmax6 mm +50%, better
Sensitivity97.7 dB +2.1, better
Acoustic EleganceIB15HT-8
No current priceFs16 Hz −54%, better
Qts0.70 +21%, worse
Vas440 L +32%, worse
BL12.5 T·m +9%
Xmax18 mm +350%, better
Sensitivity85.7 dB −9.9, worse
SB AudienceNERO-15OBN450D
No current priceFs25 Hz −29%, better
Qts0.80 +38%, worse
Vas319 L −5%
BL11 T·m −4%
Xmax16 mm +300%, better
Sensitivity89.4 dB −6.2, worse
LavoceLBASS15-15
No current priceFs37 Hz +6%
Qts0.74 +28%, worse
Vas284.8 L −15%, better
BL9.9 T·m −14%, worse
Xmax4.7 mm +18%, better
Sensitivity94.2 dB −1.4
B&C15CLX64
No current priceFs37 Hz +6%
Qts0.75 +29%, worse
Vas227 L −32%, better
BL11.5 T·m –
Xmax5.3 mm +32%, better
Sensitivity93.6 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
- Parts Express4.7 out of 522 ratings · Checked 24 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 |
|---|---|---|---|---|
Blue Aran | £85.00, the lowest price | 8+ in stock | Visit shop at Blue Aran | |
Lean Business | £99.00 | 17% above the lowest price | Stock not listed | Visit shop at Lean Business |
Lean Audio | £103.09 | 21% above the lowest price | Out of stock | Visit shop at Lean Audio |
Parts Express Import VAT and duty may apply | £107.71 | 27% above the lowest price | 3 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 18 JulBlue Aran£95.00 → £85.00Down 11% from £95.00