B&C15CL76
£125.46 · 58% less, betterFs42 Hz –
Qts0.25 +14%, worse
Vas140 L −27%, better
BL19.1 T·m −15%, worse
Xmax7 mm +17%, better
Sensitivity97.9 dB −1.8
15-inch LF driver · 89 mm voice coil · 650 W
RCF MB15N351 8Ω
8 Ω · 40–3000 Hz
£299.00
15%Thomann · In stock · All 3 offers
- Fs
- 42Hz
- Xmax
- 6mm
- SPL
- 100dB
- Pe
- 650W
- BL
- 22.5T·m
- Vd
- 540cm³
- Qts
- 0.22
- Vas
- 191L
RCF MB15N351 is a 15-inch 8 ohm LF driver rated at 650 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.22, Vas 191 L, Xmax 6 mm, sensitivity 99.7 dB, plus 540 cm³ Vd and 175 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 £299.00.
The published T/S values agree with each other
Thiele/Small
- Fs
- 42Hz
- Qts
- 0.22
- Qes
- 0.24
- Qms
- 4
- Vas
- 191L
- Re
- 5.6Ω
- Le
- 1.65mH
Motor and cone
- BL
- 22.5T·m
- Sd
- 900cm²
- Mms
- 80g
- Xmax
- 6mm
- Vd †
- 540cm³
- Voice coil
- 89mm
Power and response
- Sensitivity †
- 99.7dB
- Manufacturer sensitivity
- 100dB
- Power
- 650W
- Impedance
- 8Ω
- Min. impedance
- 6.8Ω
- Range
- 40–3000Hz
- EBP †
- 175 · Leans vented
Size and mounting
- Diameter
- 393mm
- Cutout
- 354mm
- Bolt circle
- 376mm
- Weight
- 5.2kg
Other published values
- Xmech
- 39
- Power Program
- 1300
† Calculated by bits from the published values
What this validation status means
Everything else RCF lists
LF · Primary · 15″
- BL
- 22.5T·m
- Fs
- 42Hz
- Le
- 1.65mH
- Re
- 5.6Ω
- Sd
- 900cm²
- Mms
- 80g
- Qes
- 0.24
- Qms
- 4
- Qts
- 0.22
- SPL
- 99.7dB
- Vas
- 191L
- Xmax
- 6mm
- Xmech
- 39
- Power
- 650W
- Impedance
- 8Ω
- Sensitivity
- 100dB
- Low limit
- 40Hz
- Power Program
- 1300
- Calculated sensitivity †
- 99.7dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 100dB
- Min. impedance
- 6.8Ω
- Voice coil
- 89mm
- Weight
- 5.2kg
- Diameter
- 393mm
- Cutout
- 354mm
- Bolt circle
- 376mm
02
Compare
Same-size drivers, compared with the MB15N351. Clear differences are green when better and red when worse.
This driverMB15N351
Best price
£299.00
Fs
42 Hz
Qts
0.22
Vas
191 L
BL
22.5 T·m
Xmax
6 mm
Sensitivity
99.7 dB
Power
650 W
B&C15NDL76
£175.62 · 41% less, betterFs37 Hz −12%, better
Qts0.22 –
Vas195 L –
BL22.5 T·m –
Xmax7 mm +17%, better
Sensitivity98.2 dB −1.5
B&C15FW76
£178.98 · 40% less, betterFs40 Hz −5%
Qts0.21 −5%
Vas138 L −28%, better
BL26.2 T·m +16%, better
Xmax7 mm +17%, better
Sensitivity98.1 dB −1.6
B&C15PLB76
£179.82 · 40% less, betterFs42 Hz –
Qts0.25 +14%, worse
Vas164 L −14%, better
BL22.1 T·m –
Xmax5 mm −17%, worse
Sensitivity98.7 dB −1
B&C15PS76
£184.00 · 38% less, betterFs38 Hz −10%
Qts0.26 +18%, worse
Vas164 L −14%, better
BL22.1 T·m –
Xmax7.5 mm +25%, better
Sensitivity97.1 dB −2.6, worse
Eighteen Sound15W930
£193.05 · 35% less, betterFs33 Hz −21%, better
Qts0.22 –
Vas240 L +26%, worse
BL22.1 T·m –
Xmax7.5 mm +25%, better
Sensitivity97.8 dB −1.9
FaitalPRO15FH510
£199.98 · 33% less, betterFs35 Hz −17%, better
Qts0.26 +18%, worse
Vas191.8 L –
BL21 T·m −7%
Xmax9.3 mm +54%, better
Sensitivity96.9 dB −2.8, worse
B&C15PL100
£205.87 · 31% less, betterFs37 Hz −12%, better
Qts0.20 −9%
Vas154 L −19%, better
BL26.8 T·m +19%, better
Xmax7 mm +17%, better
Sensitivity97.7 dB −2, worse
B&C15NW76
£233.82 · 22% less, betterFs42 Hz –
Qts0.22 –
Vas130 L −32%, better
BL25.5 T·m +13%, better
Xmax8 mm +33%, better
Sensitivity98.2 dB −1.5
B&C15NW100
£250.40 · 16% less, betterFs33 Hz −21%, better
Qts0.22 –
Vas139 L −27%, better
BL28 T·m +24%, better
Xmax9 mm +50%, better
Sensitivity95.4 dB −4.3, worse
Eighteen Sound15ND930
£266.78 · 11% less, betterFs36 Hz −14%, better
Qts0.22 –
Vas206 L +8%
BL23.8 T·m +6%
Xmax7.5 mm +25%, better
Sensitivity98.2 dB −1.5
Sica15 K 3 PL
£273.09 · 9% less, betterFs40 Hz −5%
Qts0.27 +23%, worse
Vas166.1 L −13%, better
BL21.4 T·m −5%
Xmax6.5 mm +8%
Sensitivity97.8 dB −1.9
Eighteen Sound15NMB1000
£285.89 · 4% lessFs46 Hz +10%
Qts0.24 +9%
Vas124 L −35%, better
BL25.2 T·m +12%, better
Xmax6.5 mm +8%
Sensitivity99 dB −0.7
CIARENDH15-4S
£289.95 · 3% lessFs28 Hz −33%, better
Qts0.25 +14%, worse
Vas220 L +15%, worse
BL24.2 T·m +8%
Xmax11.5 mm +92%, better
Sensitivity94.7 dB −5, worse
Beyma15P80ND
£320.67 · 7% more, worseFs39 Hz −7%
Qts0.21 −5%
Vas184 L −4%
BL23.8 T·m +6%
Xmax7.5 mm +25%, better
Sensitivity99 dB −0.7
Beyma15MLEX1000ND
£329.97 · 10% more, worseFs38 Hz −10%
Qts0.21 −5%
Vas167 L −13%, better
BL26 T·m +16%, better
Xmax11 mm +83%, better
Sensitivity98.4 dB −1.3
RCFLF15N401
£333.00 · 11% more, worseFs34 Hz −19%, better
Qts0.22 –
Vas160 L −16%, better
BL27.8 T·m +24%, better
Xmax9 mm +50%, better
Sensitivity96.4 dB −3.3, worse
Precision DevicesPD.153ER/2
No current priceFs40 Hz −5%
Qts0.21 −5%
Vas218.8 L +15%, worse
BL22.4 T·m –
Xmax5.7 mm −5%
Sensitivity100.1 dB –
Oberton15XL600
No current priceFs41 Hz –
Qts0.22 –
Vas150.3 L −21%, better
BL24.7 T·m +10%
Xmax5.3 mm −13%, worse
Sensitivity98.7 dB −1
Oberton15XL601
No current priceFs41 Hz –
Qts0.22 –
Vas150.3 L −21%, better
BL24.7 T·m +10%
Xmax5.3 mm −13%, worse
Sensitivity98.7 dB −1
Precision DevicesPD.153C001
No current priceFs38 Hz −10%
Qts0.22 –
Vas196 L –
BL24.2 T·m +8%
Xmax7.7 mm +28%, better
Sensitivity98.7 dB −1
PeerlessFSL-1530R01-08
No current priceFs41 Hz –
Qts0.24 +9%
Vas180 L −6%
BL21.8 T·m −3%
Xmax4.7 mm −22%, worse
Sensitivity99 dB −0.7
CelestionCF1540F
No current priceFs29 Hz −31%, better
Qts0.23 +7%
Vas227.9 L +19%, worse
BL23.1 T·m –
Xmax8.6 mm +43%, better
Sensitivity95.7 dB −4, worse
RCFCX15N351
No current priceFs55 Hz +31%, worse
Qts0.26 +18%, worse
Vas110 L −42%, better
BL23.5 T·m +4%
Xmax6 mm –
Sensitivity100.3 dB +0.6
Oberton15NB451
No current priceFs40 Hz −6%
Qts0.26 +17%, worse
Vas145.2 L −24%, better
BL22.9 T·m –
Xmax7 mm +17%, better
Sensitivity97.4 dB −2.3, worse
CelestionFTX1530
No current priceFs43 Hz –
Qts0.28 +25%, worse
Vas172.1 L −10%
BL20.2 T·m −10%, worse
Xmax6 mm –
Sensitivity98.5 dB −1.2
Eighteen Sound15W600
No current priceFs38 Hz −10%
Qts0.29 +32%, worse
Vas183 L −4%
BL20.5 T·m −9%
Xmax6.5 mm +8%
Sensitivity97.3 dB −2.4, worse
CelestionFTR15-4080F
No current priceFs38 Hz −10%
Qts0.25 +13%, worse
Vas163.1 L −15%, better
BL23.5 T·m +5%
Xmax8.5 mm +42%, better
Sensitivity97.2 dB −2.5, worse
FaneCOLOSSUS 15SB
No current priceFs41 Hz –
Qts0.29 +32%, worse
Vas151 L −21%, better
BL22.5 T·m –
Xmax6.5 mm +8%
Sensitivity97.4 dB −2.3, worse
Precision DevicesPD.153C002
No current priceFs38 Hz −10%
Qts0.25 +13%, worse
Vas263 L +38%, worse
BL18.9 T·m −16%, worse
Xmax6.8 mm +13%, better
Sensitivity99.4 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann5.0 out of 512 ratings · Checked 21 Oct 2026Read reviews on Thomann
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Thomann | £299.00, the lowest price | In stock | Visit shop at Thomann | |
Blue Aran approx 2 months | £261.07 | Ordered on Request (approx 2 months) | Visit shop at Blue Aran | |
Audio Video Parts Import VAT and duty may apply | £223.84 | Special order | Visit shop at Audio Video Parts |
Best price over time
Tracked since 1 Apr
Recent changes
- 6 SepThomann£304.00 → £299.00Down 1.6% from £304.00
- 29 AugThomann£305.00 → £304.00Down 0.3% from £305.00
- 26 AugThomann£304.00 → £305.00Up 0.3% from £304.00