15-inch LF driver · ROSSO series

SB Audience ROSSO-15W400 8Ω

Name: SB Audience ROSSO-15W400 8 Ohm
Brand: SB Audience
SKU: ROSSO-15W400
Availability: InStock

8 Ω

£134.56

Steady

Lean Audio · 2 in stock · All 2 offers

Open in 00 Simulator

Fs: 44Hz
Xmax: 8.3mm
SPL: 98dB
Pe: –
BL: 21.5T·m
Vd: 750cm³
Qts: 0.33
Vas: 140L

See all 18 specs

Specifications

Published by SB Audience

Manufacturer page

Datasheet PDF

SB Audience ROSSO-15W400 is a 15-inch 8 ohm LF driver. The validated T/S data includes Fs 44 Hz, Qts 0.33, Vas 140.1 L, Xmax 8.3 mm, sensitivity 97.5 dB, plus 750 cm³ Vd and 129 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 £134.56.

The published T/S values agree with each other

Thiele/Small

Fs: 44Hz
Qts: 0.33
Qes: 0.34
Qms: 11.2
Vas: 140.1L
Re: 5.2Ω
Le: 1mH

Motor and cone

BL: 21.5T·m
Sd: 908cm²
Mms: 108g
Xmax: 8.3mm
Vd †: 750cm³

Power and response

Sensitivity †: 97.5dB
Impedance: 8Ω
Min. impedance: 5.2Ω
EBP †: 129 · Leans vented

Other published values

Cms: 0.12mm/N
Rms: 2.68kg/s

† Calculated by bits from the published values

What this validation status means

Everything else SB Audience lists

LF · Primary · 15″

BL: 21.5T·m
Fs: 44Hz
Le: 1mH
Re: 5.2Ω
Sd: 908cm²
Cms: 0.12mm/N
Mms: 108g
Qes: 0.34
Qms: 11.2
Qts: 0.33
Rms: 2.68kg/s
SPL: 97.5dB
Vas: 140.1L
Xmax: 8.3mm
Impedance: 8Ω
Calculated sensitivity †: 97.5dB
Min. impedance: 5.2Ω

Compare

Same-size drivers, compared with the ROSSO-15W400. Clear differences are green when better and red when worse.

This driverROSSO-15W400

Best price

£134.56

44 Hz

Qts

0.33

Vas

140.1 L

21.5 T·m

Xmax

8.3 mm

Sensitivity

97.5 dB

Power

–

B&C15CL76

£128.88 · 4% less

Fs42 Hz −5%

Qts0.33 –

Vas135 L −4%

BL21 T·m –

Xmax7 mm −15%

Sensitivity96.7 dB −0.8

SB AudienceROSSO-15MW500

£173.91 · 29% more

Fs42 Hz −5%

Qts0.33 –

Vas121.3 L −13%

BL23.2 T·m +8%

Xmax8.4 mm –

Sensitivity96.1 dB −1.4

BMS15S330

£194.97 · 45% more

Fs39 Hz −11%

Qts0.32 −3%

Vas152 L +8%

BL23 T·m +7%

Xmax8 mm −3%

Sensitivity96.3 dB −1.2

FaitalPRO15FH530

£201.91 · 50% more

Fs39 Hz −11%

Qts0.35 +6%

Vas140.6 L –

BL20.7 T·m −4%

Xmax9.3 mm +12%

Sensitivity95.7 dB −1.8

Beyma15MCB700

£208.98 · 55% more

Fs44 Hz –

Qts0.34 +3%

Vas148 L +6%

BL20 T·m −7%

Xmax7 mm −15%

Sensitivity97.5 dB –

Precision DevicesPD.154C001

£222.00 · 65% more

Fs45 Hz –

Qts0.31 −6%

Vas128 L −9%

BL25.5 T·m +19%

Xmax8.2 mm –

Sensitivity97.4 dB –

B&C15NDL88

£227.25 · 69% more

Fs45 Hz –

Qts0.34 +3%

Vas126 L −10%

BL20.1 T·m −7%

Xmax8 mm −3%

Sensitivity97.1 dB –

Beyma15MC700ND

£228.79 · 70% more

Fs49 Hz +11%

Qts0.31 −6%

Vas105 L −25%

BL22.6 T·m +5%

Xmax7 mm −15%

Sensitivity97.6 dB –

Sica15 PF 3

£236.50 · 76% more

Fs45 Hz –

Qts0.31 −6%

Vas117.6 L −16%

BL21.9 T·m –

Xmax8 mm −3%

Sensitivity97.1 dB –

RCFMB15X351

£238.26 · 77% more

Fs46 Hz +5%

Qts0.31 −6%

Vas114 L −19%

BL22.8 T·m +6%

Xmax7 mm −15%

Sensitivity97.3 dB –

Eighteen Sound15NW530

£243.16 · 81% more

Fs43 Hz –

Qts0.33 –

Vas154 L +10%

BL22 T·m –

Xmax7.5 mm −9%

Sensitivity97.5 dB –

FaitalPRO15FX560

£245.00 · 82% more

Fs38 Hz −14%

Qts0.30 −9%

Vas159 L +13%

BL21.5 T·m –

Xmax9.4 mm +14%

Sensitivity96.5 dB −1

BMS15C262

£254.59 · 89% more

Fs43 Hz −3%

Qts0.34 +3%

Vas138 L –

BL20.6 T·m −4%

Xmax2.5 mm −70%

Sensitivity96.7 dB −0.8

Eighteen Sound15MB1000

£259.50 · 93% more

Fs48 Hz +9%

Qts0.31 −6%

Vas132.5 L −5%

BL21 T·m –

Xmax6 mm −27%

Sensitivity98.6 dB +1.1

Sica15 PFS 4

£269.49 · 100% more

Fs39 Hz −11%

Qts0.34 +3%

Vas103.9 L −26%

BL24.2 T·m +13%

Xmax8 mm −3%

Sensitivity94.2 dB −3.3

Sica15 S 4 PL

£303.29 · 125% more

Fs40 Hz −10%

Qts0.32 −3%

Vas127.6 L −9%

BL22.5 T·m +5%

Xmax10 mm +21%

Sensitivity95.8 dB −1.7

Eighteen Sound15NLW9500

£380.16 · 183% more

Fs35 Hz −20%

Qts0.32 −3%

Vas163 L +16%

BL21.6 T·m –

Xmax9 mm +9%

Sensitivity95.2 dB −2.3

B&C15CXN88

£494.86 · 268% more

Fs47 Hz +7%

Qts0.30 −9%

Vas124 L −11%

BL20.1 T·m −6%

Xmax9.5 mm +15%

Sensitivity98.2 dB +0.7

Eighteen Sound15NCX910

£497.18 · 269% more

Fs55 Hz +25%

Qts0.33 –

Vas107 L −24%

BL21 T·m –

Xmax7 mm −15%

Sensitivity99.2 dB +1.7

Eighteen Sound15NTLW2500

No current price

Fs45 Hz –

Qts0.30 −9%

Vas143 L –

BL21.2 T·m –

Xmax8 mm −3%

Sensitivity98.3 dB +0.8

Oberton15HCX3572

No current price

Fs46 Hz +5%

Qts0.34 +3%

Vas140.7 L –

BL18.8 T·m −13%

Xmax7.3 mm −12%

Sensitivity98 dB +0.5

Eighteen Sound15NCX910BE

No current price

Fs55 Hz +25%

Qts0.33 –

Vas107 L −24%

BL21 T·m –

Xmax7 mm −15%

Sensitivity99.2 dB +1.7

Eighteen Sound15NCX910N

No current price

Fs55 Hz +25%

Qts0.33 –

Vas107 L −24%

BL21 T·m –

Xmax7 mm −15%

Sensitivity99.2 dB +1.7

Oberton15MB500

No current price

Fs42 Hz −6%

Qts0.34 –

Vas161.5 L +15%

BL18.5 T·m −14%

Xmax7.8 mm −6%

Sensitivity97.2 dB –

Oberton15NMB500

No current price

Fs45 Hz –

Qts0.29 −12%

Vas128.0 L −9%

BL21.3 T·m –

Xmax7.8 mm −6%

Sensitivity97.9 dB –

Oberton15NXL701

No current price

Fs43 Hz –

Qts0.30 −9%

Vas127.1 L −9%

BL21.7 T·m –

Xmax9.3 mm +12%

Sensitivity97.3 dB –

PeerlessNCP-1540R01-08

No current price

Fs54 Hz +23%

Qts0.32 −3%

Vas86.5 L −38%

BL23.9 T·m +11%

Xmax8.2 mm –

Sensitivity98.2 dB +0.7

Oberton15NCX

No current price

Fs44 Hz –

Qts0.36 +9%

Vas138.4 L –

BL18.6 T·m −14%

Xmax7.8 mm −6%

Sensitivity96.9 dB −0.6

Oberton15MB35

No current price

Fs48 Hz +8%

Qts0.34 –

Vas115.1 L −18%

BL20.1 T·m −7%

Xmax6.8 mm −18%

Sensitivity97.6 dB –

Sica15 PNS 4

No current price

Fs37 Hz −15%

Qts0.35 +6%

Vas116.3 L −17%

BL22.7 T·m +6%

Xmax9 mm +9%

Sensitivity94 dB −3.5

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 13 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£134.56, the lowest price		2 in stock	Visit shop at Lean Audio
SoundImports Checked 13 Oct 2026 · Ships from Netherlands · Source: inc VAT Import VAT and duty may apply	£168.92	26% above the lowest price	2 in stock	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr

bits00 AUDIO

15-inch LF driver · ROSSO series

SB Audience ROSSO-15W400 8Ω

8 Ω

£134.56

Steady

Lean Audio · 2 in stock · All 2 offers

Open in 00 Simulator

Fs: 44Hz
Xmax: 8.3mm
SPL: 98dB
Pe: –
BL: 21.5T·m
Vd: 750cm³
Qts: 0.33
Vas: 140L

See all 18 specs

Specifications

Published by SB Audience

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 44Hz
Qts: 0.33
Qes: 0.34
Qms: 11.2
Vas: 140.1L
Re: 5.2Ω
Le: 1mH

Motor and cone

BL: 21.5T·m
Sd: 908cm²
Mms: 108g
Xmax: 8.3mm
Vd †: 750cm³

Power and response

Sensitivity †: 97.5dB
Impedance: 8Ω
Min. impedance: 5.2Ω
EBP †: 129 · Leans vented

Other published values

Cms: 0.12mm/N
Rms: 2.68kg/s

† Calculated by bits from the published values

What this validation status means

Everything else SB Audience lists

LF · Primary · 15″

BL: 21.5T·m
Fs: 44Hz
Le: 1mH
Re: 5.2Ω
Sd: 908cm²
Cms: 0.12mm/N
Mms: 108g
Qes: 0.34
Qms: 11.2
Qts: 0.33
Rms: 2.68kg/s
SPL: 97.5dB
Vas: 140.1L
Xmax: 8.3mm
Impedance: 8Ω
Calculated sensitivity †: 97.5dB
Min. impedance: 5.2Ω

Compare

Same-size drivers, compared with the ROSSO-15W400. Clear differences are green when better and red when worse.

This driverROSSO-15W400

Best price

£134.56

44 Hz

Qts

0.33

Vas

140.1 L

21.5 T·m

Xmax

8.3 mm

Sensitivity

97.5 dB

Power

–

B&C15CL76

£128.88 · 4% less

Fs42 Hz −5%

Qts0.33 –

Vas135 L −4%

BL21 T·m –

Xmax7 mm −15%

Sensitivity96.7 dB −0.8

SB AudienceROSSO-15MW500

£173.91 · 29% more

Fs42 Hz −5%

Qts0.33 –

Vas121.3 L −13%

BL23.2 T·m +8%

Xmax8.4 mm –

Sensitivity96.1 dB −1.4

BMS15S330

£194.97 · 45% more

Fs39 Hz −11%

Qts0.32 −3%

Vas152 L +8%

BL23 T·m +7%

Xmax8 mm −3%

Sensitivity96.3 dB −1.2

FaitalPRO15FH530

£201.91 · 50% more

Fs39 Hz −11%

Qts0.35 +6%

Vas140.6 L –

BL20.7 T·m −4%

Xmax9.3 mm +12%

Sensitivity95.7 dB −1.8

Beyma15MCB700

£208.98 · 55% more

Fs44 Hz –

Qts0.34 +3%

Vas148 L +6%

BL20 T·m −7%

Xmax7 mm −15%

Sensitivity97.5 dB –

Precision DevicesPD.154C001

£222.00 · 65% more

Fs45 Hz –

Qts0.31 −6%

Vas128 L −9%

BL25.5 T·m +19%

Xmax8.2 mm –

Sensitivity97.4 dB –

B&C15NDL88

£227.25 · 69% more

Fs45 Hz –

Qts0.34 +3%

Vas126 L −10%

BL20.1 T·m −7%

Xmax8 mm −3%

Sensitivity97.1 dB –

Beyma15MC700ND

£228.79 · 70% more

Fs49 Hz +11%

Qts0.31 −6%

Vas105 L −25%

BL22.6 T·m +5%

Xmax7 mm −15%

Sensitivity97.6 dB –

Sica15 PF 3

£236.50 · 76% more

Fs45 Hz –

Qts0.31 −6%

Vas117.6 L −16%

BL21.9 T·m –

Xmax8 mm −3%

Sensitivity97.1 dB –

RCFMB15X351

£238.26 · 77% more

Fs46 Hz +5%

Qts0.31 −6%

Vas114 L −19%

BL22.8 T·m +6%

Xmax7 mm −15%

Sensitivity97.3 dB –

Eighteen Sound15NW530

£243.16 · 81% more

Fs43 Hz –

Qts0.33 –

Vas154 L +10%

BL22 T·m –

Xmax7.5 mm −9%

Sensitivity97.5 dB –

FaitalPRO15FX560

£245.00 · 82% more

Fs38 Hz −14%

Qts0.30 −9%

Vas159 L +13%

BL21.5 T·m –

Xmax9.4 mm +14%

Sensitivity96.5 dB −1

BMS15C262

£254.59 · 89% more

Fs43 Hz −3%

Qts0.34 +3%

Vas138 L –

BL20.6 T·m −4%

Xmax2.5 mm −70%

Sensitivity96.7 dB −0.8

Eighteen Sound15MB1000

£259.50 · 93% more

Fs48 Hz +9%

Qts0.31 −6%

Vas132.5 L −5%

BL21 T·m –

Xmax6 mm −27%

Sensitivity98.6 dB +1.1

Sica15 PFS 4

£269.49 · 100% more

Fs39 Hz −11%

Qts0.34 +3%

Vas103.9 L −26%

BL24.2 T·m +13%

Xmax8 mm −3%

Sensitivity94.2 dB −3.3

Sica15 S 4 PL

£303.29 · 125% more

Fs40 Hz −10%

Qts0.32 −3%

Vas127.6 L −9%

BL22.5 T·m +5%

Xmax10 mm +21%

Sensitivity95.8 dB −1.7

Eighteen Sound15NLW9500

£380.16 · 183% more

Fs35 Hz −20%

Qts0.32 −3%

Vas163 L +16%

BL21.6 T·m –

Xmax9 mm +9%

Sensitivity95.2 dB −2.3

B&C15CXN88

£494.86 · 268% more

Fs47 Hz +7%

Qts0.30 −9%

Vas124 L −11%

BL20.1 T·m −6%

Xmax9.5 mm +15%

Sensitivity98.2 dB +0.7

Eighteen Sound15NCX910

£497.18 · 269% more

Fs55 Hz +25%

Qts0.33 –

Vas107 L −24%

BL21 T·m –

Xmax7 mm −15%

Sensitivity99.2 dB +1.7

Eighteen Sound15NTLW2500

No current price

Fs45 Hz –

Qts0.30 −9%

Vas143 L –

BL21.2 T·m –

Xmax8 mm −3%

Sensitivity98.3 dB +0.8

Oberton15HCX3572

No current price

Fs46 Hz +5%

Qts0.34 +3%

Vas140.7 L –

BL18.8 T·m −13%

Xmax7.3 mm −12%

Sensitivity98 dB +0.5

Eighteen Sound15NCX910BE

No current price

Fs55 Hz +25%

Qts0.33 –

Vas107 L −24%

BL21 T·m –

Xmax7 mm −15%

Sensitivity99.2 dB +1.7

Eighteen Sound15NCX910N

No current price

Fs55 Hz +25%

Qts0.33 –

Vas107 L −24%

BL21 T·m –

Xmax7 mm −15%

Sensitivity99.2 dB +1.7

Oberton15MB500

No current price

Fs42 Hz −6%

Qts0.34 –

Vas161.5 L +15%

BL18.5 T·m −14%

Xmax7.8 mm −6%

Sensitivity97.2 dB –

Oberton15NMB500

No current price

Fs45 Hz –

Qts0.29 −12%

Vas128.0 L −9%

BL21.3 T·m –

Xmax7.8 mm −6%

Sensitivity97.9 dB –

Oberton15NXL701

No current price

Fs43 Hz –

Qts0.30 −9%

Vas127.1 L −9%

BL21.7 T·m –

Xmax9.3 mm +12%

Sensitivity97.3 dB –

PeerlessNCP-1540R01-08

No current price

Fs54 Hz +23%

Qts0.32 −3%

Vas86.5 L −38%

BL23.9 T·m +11%

Xmax8.2 mm –

Sensitivity98.2 dB +0.7

Oberton15NCX

No current price

Fs44 Hz –

Qts0.36 +9%

Vas138.4 L –

BL18.6 T·m −14%

Xmax7.8 mm −6%

Sensitivity96.9 dB −0.6

Oberton15MB35

No current price

Fs48 Hz +8%

Qts0.34 –

Vas115.1 L −18%

BL20.1 T·m −7%

Xmax6.8 mm −18%

Sensitivity97.6 dB –

Sica15 PNS 4

No current price

Fs37 Hz −15%

Qts0.35 +6%

Vas116.3 L −17%

BL22.7 T·m +6%

Xmax9 mm +9%

Sensitivity94 dB −3.5

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 13 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£134.56, the lowest price		2 in stock	Visit shop at Lean Audio
SoundImports Checked 13 Oct 2026 · Ships from Netherlands · Source: inc VAT Import VAT and duty may apply	£168.92	26% above the lowest price	2 in stock	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr