EminenceBETA-15A
£85.00Fs35 Hz −23%, better
Qts0.58 −41%, better
Vas334.6 L −5%
BL11.5 T·m +76%, better
Xmax4 mm −20%, worse
Sensitivity95.6 dB –
15.5-inch LF driver · Fast series · 38 mm voice coil
Lii Audio FAST 15 8Ω
8 Ω · 46–15000 Hz
No current price
- Fs
- 46Hz
- Xmax
- 5mm
- SPL
- 96dB
- Pe
- –
- BL
- 6.5T·m
- Vd
- 441cm³
- Qts
- 0.99
- Vas
- 352L
Published graphs
Lii Audio FAST 15 is a 15.5-inch 8 ohm LF driver. The validated T/S data includes Fs 46 Hz, Qts 0.99, Vas 351.7 L, Xmax 5 mm, sensitivity 95.8 dB, plus 441 cm³ Vd and 33 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 46Hz
- Qts
- 0.99
- Qes
- 1.38
- Qms
- 3.5
- Vas
- 351.7L
- Re
- 7.8Ω
Motor and cone
- BL
- 6.5T·m
- Sd
- 881cm²
- Mms
- 38g
- Xmax
- 5mm
- Vd †
- 441cm³
- Voice coil
- 38mm
Power and response
- Sensitivity †
- 95.8dB
- Manufacturer sensitivity
- 95.7dB
- Impedance
- 8Ω
- Range
- 46–15000Hz
- EBP †
- 33 · Leans sealed
Size and mounting
- Diameter
- 390mm
Other published values
- Power Peak
- 80
† Calculated by bits from the published values
What this validation status means
Everything else Lii Audio lists
LF · Primary · 15.5″
- BL
- 6.5T·m
- Fs
- 46Hz
- Re
- 7.8Ω
- Sd
- 881cm²
- Mms
- 38g
- Qes
- 1.38
- Qms
- 3.5
- Qts
- 0.99
- SPL
- 95.8dB
- Vas
- 351.7L
- Xmax
- 5mm
- Impedance
- 8Ω
- Power Peak
- 80
- Sensitivity
- 95.7dB
- Low limit
- 46Hz
- Calculated sensitivity †
- 95.8dB
- High limit
- 15000Hz
- Manufacturer sensitivity
- 95.7dB
- Voice coil
- 38mm
- Diameter
- 390mm
02
Compare
Same-size drivers, compared with the FAST 15. Clear differences are green when better and red when worse.
This driverFAST 15
Best price
–
Fs
46 Hz
Qts
0.99
Vas
351.7 L
BL
6.5 T·m
Xmax
5 mm
Sensitivity
95.8 dB
Power
–
Dayton AudioDC380-8
£86.88Fs19 Hz −59%, better
Qts0.30 −70%, better
Vas391.4 L +11%, worse
BL20.4 T·m +213%, better
Xmax4.3 mm −13%, worse
Sensitivity90.9 dB −4.9, worse
£94.00
Fs41 Hz −10%
Qts0.57 −42%, better
Vas210 L −40%, better
BL13.5 T·m +107%, better
Xmax4.6 mm −8%
Sensitivity95.7 dB –
Dayton AudioPA380-8
£105.77Fs32 Hz −31%, better
Qts0.27 −73%, better
Vas175 L −50%, better
BL25.8 T·m +296%, better
Xmax5 mm –
Sensitivity95.1 dB −0.7
EminenceALPHA-15A
£105.77Fs41 Hz −10%
Qts1.26 +27%, worse
Vas260 L −26%, better
BL7.7 T·m +18%, better
Xmax3.8 mm −24%, worse
Sensitivity92.7 dB −3.1, worse
REDCATT15FHW
£108.98Fs24 Hz −47%, better
Qts0.60 −39%, better
Vas221.2 L −37%, better
BL15.8 T·m +142%, better
Xmax4.8 mm −3%
Sensitivity88.9 dB −6.9, worse
EminenceDELTA 15LFA
£114.84Fs39 Hz −14%, better
Qts0.48 −51%, better
Vas241 L −31%, better
BL14.6 T·m +124%, better
Xmax4.8 mm −4%
Sensitivity96.4 dB +0.6
EminenceKAPPA-15A
£126.93Fs33 Hz −27%, better
Qts0.32 −68%, better
Vas321.3 L −9%
BL15.7 T·m +141%, better
Xmax4 mm −20%, worse
Sensitivity97.5 dB +1.7
EminenceLEGEND CA154
£132.42Fs51 Hz +12%, worse
Qts0.49 −50%, better
Vas108.2 L −69%, better
BL12.2 T·m +87%, better
Xmax5 mm –
Sensitivity96.3 dB +0.5
EminenceDELTA PRO 15A
£142.04Fs42 Hz −8%
Qts0.40 −60%, better
Vas243.5 L −31%, better
BL14.5 T·m +122%, better
Xmax4.3 mm −14%, worse
Sensitivity98.2 dB +2.4, better
FaitalPRO15PR300
£151.98Fs35 Hz −23%, better
Qts0.48 −51%, better
Vas220.1 L −37%, better
BL15.6 T·m +139%, better
Xmax5.2 mm +5%
Sensitivity94.8 dB −1
EminenceLEGEND BP 1525
£163.00Fs32 Hz −30%, better
Qts0.48 −51%, better
Vas397 L +13%, worse
BL13.1 T·m +100%, better
Xmax6.2 mm +24%, better
Sensitivity96.2 dB –
FaitalPRO15PR400
£168.12Fs35 Hz −23%, better
Qts0.32 −68%, better
Vas248.9 L −29%, better
BL16.7 T·m +156%, better
Xmax5.8 mm +15%, better
Sensitivity97 dB +1.2
EminenceOMEGA PRO-15A
£170.00Fs33 Hz −27%, better
Qts0.32 −68%, better
Vas258.5 L −27%, better
BL17.5 T·m +168%, better
Xmax4.8 mm −4%
Sensitivity96.5 dB +0.7
B&C15PLB76
£180.79Fs42 Hz −8%
Qts0.25 −75%, better
Vas164 L −53%, better
BL22.1 T·m +239%, better
Xmax5 mm –
Sensitivity98.7 dB +2.9, better
LavoceWAF154.03
£183.53Fs40 Hz −12%, better
Qts0.26 −74%, better
Vas166.6 L −53%, better
BL23.5 T·m +261%, better
Xmax5.2 mm +4%
Sensitivity97.8 dB +2, better
Eighteen Sound15MB606
£217.70Fs43 Hz −5%
Qts0.35 −65%, better
Vas223 L −37%, better
BL15.1 T·m +132%, better
Xmax4.5 mm −10%, worse
Sensitivity98.8 dB +3, better
SB AudienceNERO-15OBN450D
£295.64Fs25 Hz −45%, better
Qts0.80 −19%, better
Vas319 L −9%
BL11 T·m +69%, better
Xmax16 mm +220%, better
Sensitivity89.4 dB −6.4, worse
LavoceLBASS15-15
No current priceFs37 Hz −19%, better
Qts0.74 −25%, better
Vas284.8 L −19%, better
BL9.9 T·m +52%, better
Xmax4.7 mm −6%
Sensitivity94.2 dB −1.6
MonacorSP-15A/402PA
No current priceFs36 Hz −21%, better
Qts0.31 −69%, better
Vas235 L −33%, better
BL19.9 T·m +205%, better
Xmax5 mm –
Sensitivity97.2 dB +1.4
CelestionNTR15-3018E
No current priceFs35 Hz −23%, better
Qts0.28 −71%, better
Vas207.3 L −41%, better
BL21.1 T·m +223%, better
Xmax5 mm –
Sensitivity96.7 dB +0.9
B&C15CLX64
No current priceFs37 Hz −19%, better
Qts0.75 −24%, better
Vas227 L −35%, better
BL11.5 T·m +76%, better
Xmax5.3 mm +6%
Sensitivity93.6 dB −2.2, worse
Acoustic EleganceTD15M-4
No current priceFs35 Hz −24%, better
Qts0.33 −67%, better
Vas312 L −11%, better
BL11.8 T·m +81%, better
Xmax6 mm +20%, better
Sensitivity97.7 dB +1.9
Acoustic EleganceTD15M-8
No current priceFs35 Hz −24%, better
Qts0.33 −67%, better
Vas312 L −11%, better
BL17 T·m +161%, better
Xmax6 mm +20%, better
Sensitivity97.7 dB +1.9
EminenceLEGEND 1518
No current priceFs82 Hz +80%, worse
Qts0.93 −6%
Vas65.4 L −81%, better
BL14.1 T·m +116%, better
Xmax0.8 mm −84%, worse
Sensitivity97.5 dB +1.7
P.Audio15BM-500B-V3
No current priceFs41 Hz −10%
Qts0.37 −63%, better
Vas183.4 L −48%, better
BL17.8 T·m +172%, better
Xmax4.8 mm −4%
Sensitivity96.9 dB +1.1
BMS15S420
No current priceFs40 Hz −13%, better
Qts0.25 −75%, better
Vas152 L −57%, better
BL25.5 T·m +291%, better
Xmax5 mm –
Sensitivity97.7 dB +1.9
P.Audio15BMA-500B
No current priceFs51 Hz +12%, worse
Qts0.49 −50%, better
Vas121.2 L −66%, better
BL17.2 T·m +164%, better
Xmax5 mm –
Sensitivity96.9 dB +1.1
P.AudioP-15N-V3
No current priceFs45 Hz –
Qts0.31 −69%, better
Vas101.9 L −71%, better
BL25.3 T·m +288%, better
Xmax5 mm –
Sensitivity96.7 dB +0.9
LavoceFBASS15-20
No current priceFs40 Hz −12%, better
Qts0.53 −46%, better
Vas234.4 L −33%, better
BL12.8 T·m +96%, better
Xmax4.3 mm −14%, worse
Sensitivity96.2 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
No current price found. Pricing may appear after the next vendor refresh.