EminenceKAPPA-15LFA
£143.62 · 34% less, betterFs39 Hz −5%
Qts0.38 +9%
Vas159 L +3%
BL18.6 T·m −10%
Xmax5.5 mm –
Sensitivity95.6 dB −1
15-inch LF driver · 77 mm voice coil · 500 W
BMS 15N620 8Ω
8 Ω · 35–2500 Hz
£216.43
SteadyLean Audio · 2 in stock · All 2 offers
- Fs
- 41Hz
- Xmax
- 5.5mm
- SPL
- 97dB
- Pe
- 500W
- BL
- 20.6T·m
- Vd
- 484cm³
- Qts
- 0.35
- Vas
- 154L
BMS 15N620 is a 15-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 41 Hz, Qts 0.35, Vas 154 L, Xmax 5.5 mm, sensitivity 96.6 dB, plus 484 cm³ Vd and 111 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 £216.43.
The published T/S values agree with each other
Thiele/Small
- Fs
- 41Hz
- Qts
- 0.35
- Qes
- 0.37
- Qms
- 5.9
- Vas
- 154L
- Re
- 5.7Ω
- Le
- 0.65mH
Motor and cone
- BL
- 20.6T·m
- Sd
- 880cm²
- Mms
- 109g
- Xmax
- 5.5mm
- Vd †
- 484cm³
- Voice coil
- 77mm
Power and response
- Sensitivity †
- 96.6dB
- Manufacturer sensitivity
- 98dB
- Power
- 500W
- Impedance
- 8Ω
- Range
- 35–2500Hz
- EBP †
- 111 · Leans vented
Size and mounting
- Diameter
- 388mm
- Cutout
- 358mm
- Bolt circle
- 371mm
- Depth
- 174mm
- Weight
- 3.7kg
Other published values
- Cms
- 0.14mm/N
Sensitivity shows 96.6 dB, calculated from the T/S values. BMS publishes 98.0 dB, 1.4 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else BMS lists
LF
- BL
- 20.6T·m
- Fs
- 41Hz
- Le
- 0.65mH
- Re
- 5.7Ω
- Sd
- 880cm²
- Cms
- 0.14mm/N
- Mms
- 109g
- Qes
- 0.37
- Qms
- 5.9
- Qts
- 0.35
- SPL
- 96.6dB
- Vas
- 154L
- Xmax
- 5.5mm
- Power
- 500W
- Impedance
- 8Ω
- Sensitivity
- 98dB
- Low limit
- 35Hz
- Calculated sensitivity †
- 96.6dB
- High limit
- 2500Hz
- Manufacturer sensitivity
- 98dB
- Voice coil
- 77mm
- 10. basket
- Cast Aluminum
- 20. bl factor
- BL 20.6 Tesla m
- 1. application
- Low-Middle
- 18. moving mass
- Mms 0.109 kg
- 13. dc resistance
- Re 5.7 Ohm
- 9. magnet gap depth
- 8 mm
- 17. equivalent volume
- Vas 154 L
- 2. nominal impendance
- 8 Ohm
- 5. frequency response
- 35 – 2500 Hz
- 6. voice coil diameter
- 77 (3″) mm
- 7. voice coil material
- Cu
- 12. resonance frequency
- Fs 41 Hz
- 14. mechanical q factor
- Qms 5.9
- 15. electrical q factor
- Qes 0.37
- 16. total quality factor
- Qts 0.35
- 19. mechanical complience
- Cms 0.14 mm / N
- 21. effective piston area
- Sd 0.0880 m²
- 22. max. linear excursion
- Xmax +/- 5.5 mm
- 23. voice coil inductance
- Le1k 0.65 mH
- 4. sensitivity (1 w / 1 m)
- 98 dB
- 3. power handling aes noise
- 500 W
- 8. voice coil winding depth
- 19 mm
- 11. effect. diaphragm diameter d
- 335 mm
02
Compare
Same-size drivers, compared with the 15N620. Clear differences are green when better and red when worse.
This driver15N620
Best price
£216.43
Fs
41 Hz
Qts
0.35
Vas
154 L
BL
20.6 T·m
Xmax
5.5 mm
Sensitivity
96.6 dB
Power
500 W
REDCATT152FIND-2
£159.51 · 26% less, betterFs44 Hz +7%
Qts0.37 +6%
Vas128.5 L −17%, better
BL18.3 T·m −11%, worse
Xmax4.5 mm −19%, worse
Sensitivity96.6 dB –
CelestionFTR15-3070C
£166.00 · 23% less, betterFs41 Hz –
Qts0.38 +9%
Vas187.6 L +22%, worse
BL17.3 T·m −16%, worse
Xmax5.5 mm –
Sensitivity96.9 dB –
B&C15CLA76
£170.21 · 21% less, betterFs40 Hz –
Qts0.30 −14%, better
Vas176 L +14%, worse
BL19.8 T·m −4%
Xmax5.5 mm –
Sensitivity97.6 dB +1
REDCATT15FPM
£184.17 · 15% less, betterFs41 Hz –
Qts0.36 –
Vas134.9 L −12%, better
BL21.3 T·m +3%
Xmax4.5 mm −18%, worse
Sensitivity95.9 dB −0.7
FaitalPRO15FH530
£200.12 · 8% less, betterFs39 Hz −5%
Qts0.35 –
Vas140.6 L −9%
BL20.7 T·m –
Xmax9.3 mm +68%, better
Sensitivity95.7 dB −0.9
Beyma15MCB700
£207.83 · 4% lessFs44 Hz +7%
Qts0.34 –
Vas148 L −4%
BL20 T·m –
Xmax7 mm +27%, better
Sensitivity97.5 dB +0.9
B&C15NDL88
£225.24 · 4% moreFs45 Hz +10%
Qts0.34 –
Vas126 L −18%, better
BL20.1 T·m –
Xmax8 mm +45%, better
Sensitivity97.1 dB +0.5
Eighteen Sound15NW530
£243.16 · 12% more, worseFs43 Hz +5%
Qts0.33 −6%
Vas154 L –
BL22 T·m +7%
Xmax7.5 mm +36%, better
Sensitivity97.5 dB +0.9
BMS15C262
£254.59 · 18% more, worseFs43 Hz +4%
Qts0.34 –
Vas138 L −10%, better
BL20.6 T·m –
Xmax2.5 mm −55%, worse
Sensitivity96.7 dB –
Eighteen Sound15MB1000
£259.50 · 20% more, worseFs48 Hz +17%, worse
Qts0.31 −11%, better
Vas132.5 L −14%, better
BL21 T·m –
Xmax6 mm +9%
Sensitivity98.6 dB +2, better
BMS15CN682
£384.52 · 78% more, worseFs41 Hz –
Qts0.36 –
Vas137 L −11%, better
BL20.6 T·m –
Xmax5.5 mm –
Sensitivity95.9 dB −0.7
Beyma15CXA400ND
£401.87 · 86% more, worseFs40 Hz –
Qts0.36 –
Vas196 L +27%, worse
BL19 T·m −8%
Xmax6 mm +9%
Sensitivity97.1 dB +0.5
Eighteen Sound15NCX750
£454.74 · 110% more, worseFs49 Hz +20%, worse
Qts0.37 +6%
Vas141 L −8%
BL18.4 T·m −11%, worse
Xmax5.5 mm –
Sensitivity98.2 dB +1.6
Eighteen Sound15NCX750H
£470.84 · 118% more, worseFs49 Hz +20%, worse
Qts0.37 +6%
Vas141 L −8%
BL18.5 T·m −10%, worse
Xmax5.5 mm –
Sensitivity98.2 dB +1.6
BMS15CN680
No current priceFs41 Hz –
Qts0.36 –
Vas137 L −11%, better
BL20.6 T·m –
Xmax5.5 mm –
Sensitivity95.9 dB −0.7
P.Audio15FT-76MB
No current priceFs42 Hz –
Qts0.35 –
Vas150.9 L –
BL20.4 T·m –
Xmax4.7 mm −15%, worse
Sensitivity96.8 dB –
Sica15 FE 3 CP
No current priceFs40 Hz –
Qts0.33 −6%
Vas170.4 L +11%, worse
BL19.1 T·m −7%
Xmax5.5 mm –
Sensitivity97.2 dB +0.6
Oberton15XL400
No current priceFs49 Hz +19%, worse
Qts0.34 −4%
Vas140 L −9%
BL18.9 T·m −8%
Xmax5.3 mm −5%
Sensitivity98.7 dB +2.1, better
P.AudioP150/2227
No current priceFs45 Hz +10%
Qts0.34 –
Vas117.9 L −23%, better
BL22.5 T·m +9%
Xmax5.5 mm –
Sensitivity96.9 dB –
P.AudioE15-300S-V2
No current priceFs44 Hz +7%
Qts0.36 –
Vas156.2 L –
BL20.1 T·m –
Xmax4.3 mm −23%, worse
Sensitivity97.5 dB +0.9
RCFMB15N301
No current priceFs48 Hz +17%, worse
Qts0.37 +6%
Vas134 L −13%, better
BL19.2 T·m −7%
Xmax6 mm +9%
Sensitivity97.8 dB +1.2
LavoceNBASS15-30
No current priceFs42 Hz –
Qts0.36 –
Vas143.1 L −7%
BL19.2 T·m −7%
Xmax6.6 mm +20%, better
Sensitivity96.5 dB –
Eighteen Sound15W1301
No current priceFs48 Hz +17%, worse
Qts0.32 −9%
Vas123 L −20%, better
BL22.3 T·m +8%
Xmax6 mm +9%
Sensitivity97.7 dB +1.1
P.Audio15NX-76MB
No current priceFs40 Hz –
Qts0.34 –
Vas115.6 L −25%, better
BL21.4 T·m +4%
Xmax4.8 mm −14%, worse
Sensitivity95.3 dB −1.3
Oberton15CX
No current priceFs38 Hz −7%
Qts0.35 –
Vas163.8 L +6%
BL18.4 T·m −10%, worse
Xmax7 mm +27%, better
Sensitivity95.9 dB −0.7
No current price
Fs38 Hz −7%
Qts0.35 –
Vas201 L +31%, worse
BL17.5 T·m −15%, worse
Xmax6 mm +9%
Sensitivity96.5 dB –
Sica15 CX 3 PL P
No current priceFs45 Hz +9%
Qts0.40 +14%, worse
Vas152.4 L –
BL17.3 T·m −16%, worse
Xmax5.5 mm –
Sensitivity97.1 dB +0.5
Sica15 CX 3 PL T
No current priceFs45 Hz +9%
Qts0.40 +14%, worse
Vas152.4 L –
BL17.3 T·m −16%, worse
Xmax5.5 mm –
Sensitivity97.1 dB +0.5
Oberton15MB35
No current priceFs48 Hz +16%, worse
Qts0.34 −4%
Vas115.1 L −25%, better
BL20.1 T·m –
Xmax6.8 mm +23%, better
Sensitivity97.6 dB +1
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Audio | £216.43, the lowest price | 2 in stock | Visit shop at Lean Audio |
Best price over time
Tracked since 1 Apr