15-inch LF driver · 77 mm voice coil · 500 W

BMS 15CN680 8Ω

Name: BMS 15CN680 8 Ohm
Brand: BMS
SKU: 15CN680

8 Ω · 40–20000 Hz

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 41Hz
Xmax: 5.5mm
SPL: 96dB
Pe: 500W
BL: 20.6T·m
Vd: 459cm³
Qts: 0.36
Vas: 137L

See all 25 specs

Specifications

Published by BMS

Manufacturer page

Datasheet PDF

BMS 15CN680 is a 15-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 41 Hz, Qts 0.36, Vas 137 L, Xmax 5.5 mm, sensitivity 95.9 dB, plus 459 cm³ Vd and 107 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: 41Hz
Qts: 0.36
Qes: 0.38
Qms: 6.3
Vas: 137L
Re: 5.7Ω

Motor and cone

BL: 20.6T·m
Sd: 834cm²
Mms: 110g
Xmax: 5.5mm
Vd †: 459cm³
Voice coil: 77mm

Power and response

Sensitivity †: 95.9dB
Manufacturer sensitivity: 98dB
Power: 500W
Impedance: 8Ω
Range: 40–20000Hz
EBP †: 107 · Leans vented

Size and mounting

Diameter: 388mm
Cutout: 358mm
Bolt circle: 371mm
Depth: 203mm
Weight: 5.3kg

Other published values

Cms: 0.14mm/N
High limit: 2000Hz

Sensitivity shows 95.9 dB, calculated from the T/S values. BMS publishes 98.0 dB, 2.1 dB apart.

Excursion and motor values come from the LF section; the frequency range spans every section.

† Calculated by bits from the published values

What this validation status means

Components and manufacturer details

LF

BL: 20.6T·m
Fs: 41Hz
Re: 5.7Ω
Sd: 834cm²
Cms: 0.14mm/N
Mms: 110g
Qes: 0.38
Qms: 6.3
Qts: 0.36
SPL: 95.9dB
Vas: 137L
Xmax: 5.5mm
Power: 500W
Impedance: 8Ω
Sensitivity: 98dB
Low limit: 40Hz
Calculated sensitivity †: 95.9dB
High limit: 2000Hz
Manufacturer sensitivity: 98dB
Voice coil: 77mm
10. basket: Cast Aluminum
20. bl factor: BL 20.6 Tesla m
1. application: 2-way Transducer
18. moving mass: Mms 0.110 kg
13. dc resistance: Re 5.7 Ohm
9. magnet gap depth: 8 mm
17. equivalent volume: Vas 137 L
2. nominal impendance: 8 Ohm
5. frequency response: 40 – 2000 Hz
6. voice coil diameter: 77 (3″) mm
7. voice coil material: Cu
12. resonance frequency: Fs 40.7 Hz
14. mechanical q factor: Qms 6.28
15. electrical q factor: Qes 0.38
16. total quality factor: Qts 0.36
19. mechanical complience: Cms 0.14 mm / N
21. effective piston area: Sd 0.0834 m²
22. max. linear excursion: Xmax +/- 5.5 mm
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

HF

SPL: 113dB
Power: 80W
Impedance: 8Ω
Power Peak: 450
Sensitivity: 113dB
Low limit: 600Hz
High limit: 20000Hz
Manufacturer sensitivity: 113dB
Crossover: 1200Hz
3. peak power: 450 W
9. fluchs density: 2.2 T
5. frequency range: 600 – 20000 Hz
8. magnet material: Neodymium
1. nominal impendance: 8 Ohm
11. voice coil former: Kapton TM
2. power handling aes: 80 W
12. diaphragm material: Polyester
7. voice coil diameter: 80° x 60° (1.75″) mm
10. voice coil material: Copper Clad Aluminium
6. recommended crossover: 1200 Hz
4. sensitivity (1 w / 1 m): 113 dB

Compare

Same-size drivers, compared with the 15CN680. Clear differences are green when better and red when worse.

This driver15CN680

Best price

–

41 Hz

Qts

0.36

Vas

137 L

20.6 T·m

Xmax

5.5 mm

Sensitivity

95.9 dB

Power

500 W

EminenceKAPPA-15LFA

£143.62

Fs39 Hz −4%

Qts0.38 +6%

Vas159 L +16%

BL18.6 T·m −10%

Xmax5.5 mm –

Sensitivity95.6 dB –

REDCATT152FIND-2

£159.51

Fs44 Hz +8%

Qts0.37 –

Vas128.5 L −6%

BL18.3 T·m −11%

Xmax4.5 mm −19%

Sensitivity96.6 dB +0.7

REDCATT15FPM

£184.17

Fs41 Hz –

Qts0.36 –

Vas134.9 L –

BL21.3 T·m +3%

Xmax4.5 mm −18%

Sensitivity95.9 dB –

CIAREPW396

£186.72

Fs43 Hz +6%

Qts0.41 +14%

Vas129 L −6%

BL20.5 T·m –

Xmax6.5 mm +18%

Sensitivity96 dB –

FaitalPRO15FH530

£200.12

Fs39 Hz −4%

Qts0.35 –

Vas140.6 L –

BL20.7 T·m –

Xmax9.3 mm +68%

Sensitivity95.7 dB –

Beyma15MCB700

£207.83

Fs44 Hz +8%

Qts0.34 −6%

Vas148 L +8%

BL20 T·m –

Xmax7 mm +27%

Sensitivity97.5 dB +1.6

BMS15N620

£216.43

Fs41 Hz –

Qts0.35 –

Vas154 L +12%

BL20.6 T·m –

Xmax5.5 mm –

Sensitivity96.6 dB +0.7

B&C15NDL88

£225.24

Fs45 Hz +11%

Qts0.34 −6%

Vas126 L −8%

BL20.1 T·m –

Xmax8 mm +45%

Sensitivity97.1 dB +1.2

BMS15C262

£254.59

Fs43 Hz +4%

Qts0.34 −6%

Vas138 L –

BL20.6 T·m –

Xmax2.5 mm −55%

Sensitivity96.7 dB +0.8

Eighteen Sound15MB1000

£259.50

Fs48 Hz +18%

Qts0.31 −14%

Vas132.5 L −3%

BL21 T·m –

Xmax6 mm +9%

Sensitivity98.6 dB +2.7

BMS15CN682

£384.52

Fs41 Hz –

Qts0.36 –

Vas137 L –

BL20.6 T·m –

Xmax5.5 mm –

Sensitivity95.9 dB –

Beyma15CXA400ND

£401.87

Fs40 Hz –

Qts0.36 –

Vas196 L +43%

BL19 T·m −8%

Xmax6 mm +9%

Sensitivity97.1 dB +1.2

Eighteen Sound15NCX750

£454.74

Fs49 Hz +20%

Qts0.37 –

Vas141 L –

BL18.4 T·m −11%

Xmax5.5 mm –

Sensitivity98.2 dB +2.3

Eighteen Sound15NCX750H

£470.84

Fs49 Hz +20%

Qts0.37 –

Vas141 L –

BL18.5 T·m −10%

Xmax5.5 mm –

Sensitivity98.2 dB +2.3

RCFMB15N301

No current price

Fs48 Hz +18%

Qts0.37 –

Vas134 L –

BL19.2 T·m −7%

Xmax6 mm +9%

Sensitivity97.8 dB +1.9

P.Audio15FT-76MB

No current price

Fs42 Hz +3%

Qts0.35 –

Vas150.9 L +10%

BL20.4 T·m –

Xmax4.7 mm −15%

Sensitivity96.8 dB +0.9

Oberton15XL400

No current price

Fs49 Hz +20%

Qts0.34 −6%

Vas140 L –

BL18.9 T·m −8%

Xmax5.3 mm −5%

Sensitivity98.7 dB +2.8

P.AudioP150/2227

No current price

Fs45 Hz +11%

Qts0.34 −6%

Vas117.9 L −14%

BL22.5 T·m +9%

Xmax5.5 mm –

Sensitivity96.9 dB +1

LavoceNBASS15-30

No current price

Fs42 Hz +3%

Qts0.36 –

Vas143.1 L +4%

BL19.2 T·m −7%

Xmax6.6 mm +20%

Sensitivity96.5 dB +0.6

P.AudioE15-300S-V2

No current price

Fs44 Hz +8%

Qts0.36 –

Vas156.2 L +14%

BL20.1 T·m –

Xmax4.3 mm −23%

Sensitivity97.5 dB +1.6

Sica15 FE 3 CP

No current price

Fs40 Hz –

Qts0.33 −8%

Vas170.4 L +24%

BL19.1 T·m −7%

Xmax5.5 mm –

Sensitivity97.2 dB +1.3

Eighteen Sound15W1301

No current price

Fs48 Hz +18%

Qts0.32 −11%

Vas123 L −10%

BL22.3 T·m +8%

Xmax6 mm +9%

Sensitivity97.7 dB +1.8

P.Audio15NX-76MB

No current price

Fs40 Hz –

Qts0.34 −6%

Vas115.6 L −16%

BL21.4 T·m +4%

Xmax4.8 mm −14%

Sensitivity95.3 dB −0.6

Oberton15H4CX72

No current price

Fs56 Hz +38%

Qts0.37 –

Vas113.1 L −17%

BL18.2 T·m −12%

Xmax4.5 mm −18%

Sensitivity99.3 dB +3.4

Oberton15NCX

No current price

Fs44 Hz +7%

Qts0.36 –

Vas138.4 L –

BL18.6 T·m −10%

Xmax7.8 mm +41%

Sensitivity96.9 dB +1

Sica15 CX 3 PL P

No current price

Fs45 Hz +9%

Qts0.40 +11%

Vas152.4 L +11%

BL17.3 T·m −16%

Xmax5.5 mm –

Sensitivity97.1 dB +1.2

Sica15 CX 3 PL T

No current price

Fs45 Hz +9%

Qts0.40 +11%

Vas152.4 L +11%

BL17.3 T·m −16%

Xmax5.5 mm –

Sensitivity97.1 dB +1.2

RCFM15P550

No current price

Fs45 Hz +11%

Qts0.37 –

Vas140 L –

BL19.8 T·m −4%

Xmax7 mm +27%

Sensitivity97 dB +1.1

P.AudioC15-600EL-V3

No current price

Fs45 Hz +11%

Qts0.40 +11%

Vas94.6 L −31%

BL20.4 T·m –

Xmax5.3 mm −5%

Sensitivity95 dB −0.9

Sica15 N 3 PL

No current price

Fs47 Hz +15%

Qts0.37 –

Vas140.4 L –

BL18.4 T·m −10%

Xmax10 mm +82%

Sensitivity98 dB +2.1

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Lean Audio Checked 26 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£384.52		Back order	Visit shop at Lean Audio

bits00 AUDIO

15-inch LF driver · 77 mm voice coil · 500 W

BMS 15CN680 8Ω

8 Ω · 40–20000 Hz

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 41Hz
Xmax: 5.5mm
SPL: 96dB
Pe: 500W
BL: 20.6T·m
Vd: 459cm³
Qts: 0.36
Vas: 137L

See all 25 specs

Specifications

Published by BMS

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 41Hz
Qts: 0.36
Qes: 0.38
Qms: 6.3
Vas: 137L
Re: 5.7Ω

Motor and cone

BL: 20.6T·m
Sd: 834cm²
Mms: 110g
Xmax: 5.5mm
Vd †: 459cm³
Voice coil: 77mm

Power and response

Sensitivity †: 95.9dB
Manufacturer sensitivity: 98dB
Power: 500W
Impedance: 8Ω
Range: 40–20000Hz
EBP †: 107 · Leans vented

Size and mounting

Diameter: 388mm
Cutout: 358mm
Bolt circle: 371mm
Depth: 203mm
Weight: 5.3kg

Other published values

Cms: 0.14mm/N
High limit: 2000Hz

Sensitivity shows 95.9 dB, calculated from the T/S values. BMS publishes 98.0 dB, 2.1 dB apart.

Excursion and motor values come from the LF section; the frequency range spans every section.

† Calculated by bits from the published values

What this validation status means

Components and manufacturer details

LF

BL: 20.6T·m
Fs: 41Hz
Re: 5.7Ω
Sd: 834cm²
Cms: 0.14mm/N
Mms: 110g
Qes: 0.38
Qms: 6.3
Qts: 0.36
SPL: 95.9dB
Vas: 137L
Xmax: 5.5mm
Power: 500W
Impedance: 8Ω
Sensitivity: 98dB
Low limit: 40Hz
Calculated sensitivity †: 95.9dB
High limit: 2000Hz
Manufacturer sensitivity: 98dB
Voice coil: 77mm
10. basket: Cast Aluminum
20. bl factor: BL 20.6 Tesla m
1. application: 2-way Transducer
18. moving mass: Mms 0.110 kg
13. dc resistance: Re 5.7 Ohm
9. magnet gap depth: 8 mm
17. equivalent volume: Vas 137 L
2. nominal impendance: 8 Ohm
5. frequency response: 40 – 2000 Hz
6. voice coil diameter: 77 (3″) mm
7. voice coil material: Cu
12. resonance frequency: Fs 40.7 Hz
14. mechanical q factor: Qms 6.28
15. electrical q factor: Qes 0.38
16. total quality factor: Qts 0.36
19. mechanical complience: Cms 0.14 mm / N
21. effective piston area: Sd 0.0834 m²
22. max. linear excursion: Xmax +/- 5.5 mm
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

HF

SPL: 113dB
Power: 80W
Impedance: 8Ω
Power Peak: 450
Sensitivity: 113dB
Low limit: 600Hz
High limit: 20000Hz
Manufacturer sensitivity: 113dB
Crossover: 1200Hz
3. peak power: 450 W
9. fluchs density: 2.2 T
5. frequency range: 600 – 20000 Hz
8. magnet material: Neodymium
1. nominal impendance: 8 Ohm
11. voice coil former: Kapton TM
2. power handling aes: 80 W
12. diaphragm material: Polyester
7. voice coil diameter: 80° x 60° (1.75″) mm
10. voice coil material: Copper Clad Aluminium
6. recommended crossover: 1200 Hz
4. sensitivity (1 w / 1 m): 113 dB

Compare

Same-size drivers, compared with the 15CN680. Clear differences are green when better and red when worse.

This driver15CN680

Best price

–

41 Hz

Qts

0.36

Vas

137 L

20.6 T·m

Xmax

5.5 mm

Sensitivity

95.9 dB

Power

500 W

EminenceKAPPA-15LFA

£143.62

Fs39 Hz −4%

Qts0.38 +6%

Vas159 L +16%

BL18.6 T·m −10%

Xmax5.5 mm –

Sensitivity95.6 dB –

REDCATT152FIND-2

£159.51

Fs44 Hz +8%

Qts0.37 –

Vas128.5 L −6%

BL18.3 T·m −11%

Xmax4.5 mm −19%

Sensitivity96.6 dB +0.7

REDCATT15FPM

£184.17

Fs41 Hz –

Qts0.36 –

Vas134.9 L –

BL21.3 T·m +3%

Xmax4.5 mm −18%

Sensitivity95.9 dB –

CIAREPW396

£186.72

Fs43 Hz +6%

Qts0.41 +14%

Vas129 L −6%

BL20.5 T·m –

Xmax6.5 mm +18%

Sensitivity96 dB –

FaitalPRO15FH530

£200.12

Fs39 Hz −4%

Qts0.35 –

Vas140.6 L –

BL20.7 T·m –

Xmax9.3 mm +68%

Sensitivity95.7 dB –

Beyma15MCB700

£207.83

Fs44 Hz +8%

Qts0.34 −6%

Vas148 L +8%

BL20 T·m –

Xmax7 mm +27%

Sensitivity97.5 dB +1.6

BMS15N620

£216.43

Fs41 Hz –

Qts0.35 –

Vas154 L +12%

BL20.6 T·m –

Xmax5.5 mm –

Sensitivity96.6 dB +0.7

B&C15NDL88

£225.24

Fs45 Hz +11%

Qts0.34 −6%

Vas126 L −8%

BL20.1 T·m –

Xmax8 mm +45%

Sensitivity97.1 dB +1.2

BMS15C262

£254.59

Fs43 Hz +4%

Qts0.34 −6%

Vas138 L –

BL20.6 T·m –

Xmax2.5 mm −55%

Sensitivity96.7 dB +0.8

Eighteen Sound15MB1000

£259.50

Fs48 Hz +18%

Qts0.31 −14%

Vas132.5 L −3%

BL21 T·m –

Xmax6 mm +9%

Sensitivity98.6 dB +2.7

BMS15CN682

£384.52

Fs41 Hz –

Qts0.36 –

Vas137 L –

BL20.6 T·m –

Xmax5.5 mm –

Sensitivity95.9 dB –

Beyma15CXA400ND

£401.87

Fs40 Hz –

Qts0.36 –

Vas196 L +43%

BL19 T·m −8%

Xmax6 mm +9%

Sensitivity97.1 dB +1.2

Eighteen Sound15NCX750

£454.74

Fs49 Hz +20%

Qts0.37 –

Vas141 L –

BL18.4 T·m −11%

Xmax5.5 mm –

Sensitivity98.2 dB +2.3

Eighteen Sound15NCX750H

£470.84

Fs49 Hz +20%

Qts0.37 –

Vas141 L –

BL18.5 T·m −10%

Xmax5.5 mm –

Sensitivity98.2 dB +2.3

RCFMB15N301

No current price

Fs48 Hz +18%

Qts0.37 –

Vas134 L –

BL19.2 T·m −7%

Xmax6 mm +9%

Sensitivity97.8 dB +1.9

P.Audio15FT-76MB

No current price

Fs42 Hz +3%

Qts0.35 –

Vas150.9 L +10%

BL20.4 T·m –

Xmax4.7 mm −15%

Sensitivity96.8 dB +0.9

Oberton15XL400

No current price

Fs49 Hz +20%

Qts0.34 −6%

Vas140 L –

BL18.9 T·m −8%

Xmax5.3 mm −5%

Sensitivity98.7 dB +2.8

P.AudioP150/2227

No current price

Fs45 Hz +11%

Qts0.34 −6%

Vas117.9 L −14%

BL22.5 T·m +9%

Xmax5.5 mm –

Sensitivity96.9 dB +1

LavoceNBASS15-30

No current price

Fs42 Hz +3%

Qts0.36 –

Vas143.1 L +4%

BL19.2 T·m −7%

Xmax6.6 mm +20%

Sensitivity96.5 dB +0.6

P.AudioE15-300S-V2

No current price

Fs44 Hz +8%

Qts0.36 –

Vas156.2 L +14%

BL20.1 T·m –

Xmax4.3 mm −23%

Sensitivity97.5 dB +1.6

Sica15 FE 3 CP

No current price

Fs40 Hz –

Qts0.33 −8%

Vas170.4 L +24%

BL19.1 T·m −7%

Xmax5.5 mm –

Sensitivity97.2 dB +1.3

Eighteen Sound15W1301

No current price

Fs48 Hz +18%

Qts0.32 −11%

Vas123 L −10%

BL22.3 T·m +8%

Xmax6 mm +9%

Sensitivity97.7 dB +1.8

P.Audio15NX-76MB

No current price

Fs40 Hz –

Qts0.34 −6%

Vas115.6 L −16%

BL21.4 T·m +4%

Xmax4.8 mm −14%

Sensitivity95.3 dB −0.6

Oberton15H4CX72

No current price

Fs56 Hz +38%

Qts0.37 –

Vas113.1 L −17%

BL18.2 T·m −12%

Xmax4.5 mm −18%

Sensitivity99.3 dB +3.4

Oberton15NCX

No current price

Fs44 Hz +7%

Qts0.36 –

Vas138.4 L –

BL18.6 T·m −10%

Xmax7.8 mm +41%

Sensitivity96.9 dB +1

Sica15 CX 3 PL P

No current price

Fs45 Hz +9%

Qts0.40 +11%

Vas152.4 L +11%

BL17.3 T·m −16%

Xmax5.5 mm –

Sensitivity97.1 dB +1.2

Sica15 CX 3 PL T

No current price

Fs45 Hz +9%

Qts0.40 +11%

Vas152.4 L +11%

BL17.3 T·m −16%

Xmax5.5 mm –

Sensitivity97.1 dB +1.2

RCFM15P550

No current price

Fs45 Hz +11%

Qts0.37 –

Vas140 L –

BL19.8 T·m −4%

Xmax7 mm +27%

Sensitivity97 dB +1.1

P.AudioC15-600EL-V3

No current price

Fs45 Hz +11%

Qts0.40 +11%

Vas94.6 L −31%

BL20.4 T·m –

Xmax5.3 mm −5%

Sensitivity95 dB −0.9

Sica15 N 3 PL

No current price

Fs47 Hz +15%

Qts0.37 –

Vas140.4 L –

BL18.4 T·m −10%

Xmax10 mm +82%

Sensitivity98 dB +2.1

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Lean Audio Checked 26 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£384.52		Back order	Visit shop at Lean Audio