B&C12CL76
£136.00 · 34% less, betterFs48 Hz +6%
Qts0.21 +5%
Vas59 L −15%, better
BL22.4 T·m −4%
Xmax6 mm +33%, better
Sensitivity96.8 dB –
12-inch LF driver · 77 mm voice coil · 500 W
BMS 12S320 8Ω
8 Ω · 45–2500 Hz
£204.98
SteadyLean Audio · 2 in stock · All 1 offer
- Fs
- 45Hz
- Xmax
- 4.5mm
- SPL
- 97dB
- Pe
- 500W
- BL
- 23.3T·m
- Vd
- 239cm³
- Qts
- 0.20
- Vas
- 70L
BMS 12S320 is a 12-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 45 Hz, Qts 0.20, Vas 69.5 L, Xmax 4.5 mm, sensitivity 96.9 dB, plus 239 cm³ Vd and 216 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 £204.98.
The published T/S values agree with each other
Thiele/Small
- Fs
- 45Hz
- Qts
- 0.20
- Qes
- 0.21
- Qms
- 4.2
- Vas
- 69.5L
- Re
- 5.7Ω
- Le
- 0.75mH
Motor and cone
- BL
- 23.3T·m
- Sd
- 531cm²
- Mms
- 69g
- Xmax
- 4.5mm
- Vd †
- 239cm³
- Voice coil
- 77mm
Power and response
- Sensitivity †
- 96.9dB
- Manufacturer sensitivity
- 98dB
- Power
- 500W
- Impedance
- 8Ω
- Range
- 45–2500Hz
- EBP †
- 216 · Leans vented
Size and mounting
- Diameter
- 318mm
- Cutout
- 284mm
- Bolt circle
- 300mm
- Depth
- 149mm
- Weight
- 8.1kg
Other published values
- Cms
- 0.18mm/N
Sensitivity shows 96.9 dB, calculated from the T/S values. BMS publishes 98.0 dB, 1.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else BMS lists
LF
- BL
- 23.3T·m
- Fs
- 45Hz
- Le
- 0.75mH
- Re
- 5.7Ω
- Sd
- 531cm²
- Cms
- 0.18mm/N
- Mms
- 69g
- Qes
- 0.21
- Qms
- 4.2
- Qts
- 0.20
- SPL
- 96.9dB
- Vas
- 69.5L
- Xmax
- 4.5mm
- Power
- 500W
- Impedance
- 8Ω
- Sensitivity
- 98dB
- Low limit
- 45Hz
- Calculated sensitivity †
- 96.9dB
- High limit
- 2500Hz
- Manufacturer sensitivity
- 98dB
- Voice coil
- 77mm
- 10. basket
- Cast Aluminum
- 20. bl factor
- BL 23.3 Tesla m
- 1. application
- Compact 2- or 3-way
- 18. moving mass
- Mms 0.069 kg
- 13. dc resistance
- Re 5.7 Ohm
- 9. magnet gap depth
- 10 mm
- 17. equivalent volume
- Vas 69.5 L
- 2. nominal impendance
- 8 Ohm
- 5. frequency response
- 45 – 2500 Hz
- 6. voice coil diameter
- 77 (3″) mm
- 7. voice coil material
- Cu
- 12. resonance frequency
- Fs 45.4 Hz
- 14. mechanical q factor
- Qms 4.2
- 15. electrical q factor
- Qes 0.21
- 16. total quality factor
- Qts 0.2
- 19. mechanical complience
- Cms 0.176 mm / N
- 21. effective piston area
- Sd 0.0531 m²
- 22. max. linear excursion
- Xmax +/- 4.5 mm
- 23. voice coil inductance
- Le1k 0.75 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
- 260 mm
02
Compare
Same-size drivers, compared with the 12S320. Clear differences are green when better and red when worse.
This driver12S320
Best price
£204.98
Fs
45 Hz
Qts
0.20
Vas
69.5 L
BL
23.3 T·m
Xmax
4.5 mm
Sensitivity
96.9 dB
Power
500 W
B&C12MH32
£137.65 · 33% less, betterFs53 Hz +17%, worse
Qts0.19 −5%
Vas63 L −9%
BL22.3 T·m −4%
Xmax5 mm +11%, better
Sensitivity98.7 dB +1.8
PRV Audio12MR1200X
£149.54 · 27% less, betterFs53 Hz +16%, worse
Qts0.21 +5%
Vas71.8 L +3%
BL22 T·m −6%
Xmax4.5 mm –
Sensitivity99 dB +2.1, better
B&C12PLB76
£149.88 · 27% less, betterFs50 Hz +10%, worse
Qts0.23 +15%, worse
Vas75 L +8%
BL18.6 T·m −20%, worse
Xmax5 mm +11%, better
Sensitivity97.9 dB +1
Beyma12MI100
£153.44 · 25% less, betterFs58 Hz +28%, worse
Qts0.22 +10%
Vas64 L −8%
BL21.6 T·m −7%
Xmax3 mm −33%, worse
Sensitivity99.4 dB +2.5, better
B&C12NDL76
£165.79 · 19% less, betterFs50 Hz +10%, worse
Qts0.20 –
Vas73 L +5%
BL20.1 T·m −14%, worse
Xmax7 mm +56%, better
Sensitivity98.4 dB +1.5
Eighteen Sound12MB700
£171.65 · 16% less, betterFs49 Hz +8%
Qts0.19 −5%
Vas101 L +45%, worse
BL17.8 T·m −24%, worse
Xmax4.5 mm –
Sensitivity99.8 dB +2.9, better
Eighteen Sound12MB1000
£204.35 · Same priceFs54 Hz +19%, worse
Qts0.18 −10%, better
Vas60 L −14%, better
BL23.5 T·m –
Xmax2.5 mm −44%, worse
Sensitivity98.8 dB +1.9
Sica12 F 4 CP
£216.86 · 6% more, worseFs46 Hz –
Qts0.20 –
Vas52 L −25%, better
BL26.0 T·m +12%, better
Xmax6 mm +33%, better
Sensitivity95.8 dB −1.1
RCFMB12N351
£225.00 · 10% more, worseFs55 Hz +21%, worse
Qts0.20 –
Vas61 L −12%, better
BL22.5 T·m −3%
Xmax6 mm +33%, better
Sensitivity98.9 dB +2, better
Eighteen Sound12ND710
£240.31 · 17% more, worseFs52 Hz +15%, worse
Qts0.20 –
Vas92 L +32%, worse
BL18 T·m −23%, worse
Xmax5 mm +11%, better
Sensitivity100.1 dB +3.2, better
Beyma12P80FE
£247.64 · 21% more, worseFs48 Hz +6%
Qts0.21 +5%
Vas61 L −12%, better
BL23 T·m –
Xmax7.5 mm +67%, better
Sensitivity96.9 dB –
Eighteen Sound12ND930
£248.59 · 21% more, worseFs50 Hz +10%, worse
Qts0.21 +5%
Vas70 L –
BL21.2 T·m −9%
Xmax6.5 mm +44%, better
Sensitivity98 dB +1.1
Eighteen Sound12NMB1000
£252.00 · 23% more, worseFs54 Hz +19%, worse
Qts0.19 −5%
Vas58 L −17%, better
BL24.4 T·m +5%
Xmax3.5 mm −22%, worse
Sensitivity98.8 dB +1.9
Eighteen Sound12ND610
£266.78 · 30% more, worseFs50 Hz +10%, worse
Qts0.21 +5%
Vas85 L +22%, worse
BL27.9 T·m +20%, better
Xmax3.5 mm −22%, worse
Sensitivity98.9 dB +2, better
BMS12N802
£271.01 · 32% more, worseFs43 Hz −5%
Qts0.24 +20%, worse
Vas65 L −6%
BL22.3 T·m −5%
Xmax4.5 mm –
Sensitivity95.2 dB −1.7
BMS12C362
£287.08 · 40% more, worseFs46 Hz –
Qts0.20 –
Vas60.6 L −13%, better
BL23.2 T·m –
Xmax4.5 mm –
Sensitivity96.7 dB –
Beyma12P80ND
£375.61 · 83% more, worseFs47 Hz +4%
Qts0.19 −5%
Vas65 L −6%
BL23.7 T·m –
Xmax7.5 mm +67%, better
Sensitivity97.3 dB –
No photo
PHL Audio4051
No current priceFs49 Hz +8%
Qts0.20 –
Vas85.2 L +23%, worse
BL20.9 T·m −10%, worse
Xmax5 mm +11%, better
Sensitivity98.8 dB +1.9
Eighteen Sound12MB710
No current priceFs46 Hz –
Qts0.20 –
Vas81 L +17%, worse
BL20.5 T·m −12%, worse
Xmax5 mm +11%, better
Sensitivity98 dB +1.1
Eighteen Sound12MB720
No current priceFs46 Hz –
Qts0.20 –
Vas81 L +17%, worse
BL20.5 T·m −12%, worse
Xmax5 mm +11%, better
Sensitivity98 dB +1.1
Eighteen Sound12MB810
No current priceFs46 Hz –
Qts0.20 –
Vas81 L +17%, worse
BL20.5 T·m −12%, worse
Xmax5 mm +11%, better
Sensitivity98 dB +1.1
Oberton12NXL400
No current priceFs49 Hz +7%
Qts0.20 –
Vas79.2 L +14%, worse
BL20.6 T·m −12%, worse
Xmax5.3 mm +17%, better
Sensitivity98.5 dB +1.6
Eighteen Sound12ND940
No current priceFs49 Hz +8%
Qts0.20 –
Vas64.8 L −7%
BL22.2 T·m −5%
Xmax7.6 mm +69%, better
Sensitivity97.8 dB +0.9
RCFMB12N405
No current priceFs52 Hz +15%, worse
Qts0.20 –
Vas53 L −24%, better
BL23.5 T·m –
Xmax7 mm +56%, better
Sensitivity97.5 dB +0.6
Oberton12NB450
No current priceFs46 Hz –
Qts0.20 –
Vas72.6 L +4%
BL20.3 T·m −13%, worse
Xmax7.8 mm +72%, better
Sensitivity97.5 dB +0.6
Oberton12NB400
No current priceFs44 Hz −4%
Qts0.18 −10%, better
Vas70.5 L –
BL20.3 T·m −13%, worse
Xmax5.3 mm +17%, better
Sensitivity97.1 dB –
RCFCX12N351
No current priceFs58 Hz +28%, worse
Qts0.20 –
Vas47 L −32%, better
BL25 T·m +7%
Xmax6 mm +33%, better
Sensitivity98.4 dB +1.5
Eighteen Sound12MB777
No current priceFs49 Hz +8%
Qts0.19 −5%
Vas101 L +45%, worse
BL17.8 T·m −24%, worse
Xmax4.5 mm –
Sensitivity99.8 dB +2.9, better
No photo
PHL Audio4330NDU
No current priceFs36 Hz −21%, better
Qts0.22 +10%
Vas82.6 L +19%, worse
BL22 T·m −6%
Xmax8 mm +78%, better
Sensitivity94.3 dB −2.6, worse
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 | £204.98, the lowest price | 2 in stock | Visit shop at Lean Audio |
Best price over time
Tracked since 1 Apr