- Net volume
- 60L
- Tuning
- 75Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
12-inch LF driver · 320K series · 38 mm voice coil · 120 W
B&C 320K/C-A 16Ω
80–16000 Hz
£209.86
SteadyJP Leisure · In stock · All 3 offers
- Fs
- 82Hz
- Xmax
- 2mm
- SPL
- 99dB
- Pe
- 120W
- BL
- 16.8T·m
- Vd
- 104cm³
- Qts
- 0.59
- Vas
- 52L
Published graphs
B&C 320K/C-A is a 12-inch 16 ohm LF driver rated at 120 W RMS. The validated T/S data includes Fs 82 Hz, Qts 0.59, Vas 52 L, Xmax 2 mm, sensitivity 98.8 dB, plus 104 cm³ Vd and 134 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 £209.86.
The published T/S values agree with each other
Thiele/Small
- Fs
- 82Hz
- Qts
- 0.59
- Qes
- 0.61
- Qms
- 14
- Vas
- 52L
- Re
- 12Ω
- Le
- 2.20mH
Motor and cone
- BL
- 16.8T·m
- Sd
- 522cm²
- Mms
- 28g
- Xmax
- 2mm
- Vd †
- 104cm³
- Voice coil
- 38mm
- Flux density
- 1.40T
Power and response
- Sensitivity †
- 98.8dB
- Manufacturer sensitivity
- 100dB
- Power
- 120W
- Nominal power
- 120W
- Impedance
- 16Ω
- Min. impedance
- 13.6Ω
- Range
- 80–16000Hz
- EBP †
- 134 · Leans vented
Size and mounting
- Diameter
- 316mm
- Cutout
- 286mm
- Bolt circle
- 298mm
- Depth
- 136mm
- Weight
- 4.6kg
Sensitivity shows 98.8 dB, calculated from the T/S values. B&C publishes 100.0 dB, 1.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 16.8T·m
- Fs
- 82Hz
- Le
- 2.20mH
- Re
- 12Ω
- Sd
- 522cm²
- Mms
- 28g
- Qes
- 0.61
- Qms
- 14
- Qts
- 0.59
- SPL
- 98.8dB
- Vas
- 52L
- Xmax
- 2mm
- Power
- 120W
- Impedance
- 16Ω
- Flux density
- 1.40T
- Sensitivity
- 100dB
- Low limit
- 80Hz
- Nominal power
- 120W
- Calculated sensitivity †
- 98.8dB
- High limit
- 16000Hz
- Manufacturer sensitivity
- 100dB
- Min. impedance
- 13.6Ω
- Voice coil
- 38mm
- Weight
- 4.6kg
- Diameter
- 316mm
- Depth
- 136mm
- Cutout
- 286mm
- Bolt circle
- 298mm
- Bl
- 16.8 Tm
- Fs
- 82 Hz
- Le
- 2.2 mH
- Re
- 12 Ω
- Sd
- 522 cm² (80.91 in²)
- Ebp
- 134 Hz
- Mms
- 28 g
- Qes
- 0.61
- Qms
- 14
- Qts
- 0.59
- Vas
- 52 dm³ (1.84 ft³)
- Η0
- 4.4 %
- Cone
- RCK320KC16A
- Xmax
- 2 mm
- Depth
- 136 mm (5.35 in)
- Spider
- Single
- Cone shape
- Radial
- Net weight
- 4.6 kg (10.14 lb)
- Pole design
- Straight Pole
- Sensitivity
- 100 dB
- Flux density
- 1.4 T
- Shipping box
- 360x360x200 mm (14.17x14.17x7.87 in)
- Winding depth
- 9 mm (0.37 in)
- Shipping units
- 1 pcs
- Surround shape
- Accordion
- Former material
- Kraft Paper
- Frequency range
- 80 Hz - 16000 Hz
- Magnet material
- Ferrite
- Shipping weight
- 5.5 kg (12.13 lb)
- Nominal diameter
- 320 mm (12 in)
- Overall diameter
- 316 mm (12.44 in)
- Winding material
- Copper
- Minimum impedance
- 13.6 Ω
- Nominal impedance
- 16 Ω
- Magnetic gap depth
- 9 mm (0.35 in)
- Recommended tuning
- 75 Hz
- Voice coil diameter
- 38 mm (1.5 in)
- Bolt circle diameter
- 298 mm (11.73 in)
- Recommended enclosure
- 60 dm³ (2.12 ft³)
- Woofer cone treatment
- None
- Baffle cutout diameter
- 286 mm (11.26 in)
- Nominal power handling
- 120 W
- Continuous power handling
- 240 W
- Flange and gasket thickness
- 12 mm (0.47 in)
- Air volume occupied by driver
- 3 dm³ (0.11 ft³)
B&C’s suggested box
From B&C’s 320K/C-A page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 320K/C-A. Clear differences are green when better and red when worse.
This driver320K/C-A
Best price
£209.86
Fs
82 Hz
Qts
0.59
Vas
52 L
BL
16.8 T·m
Xmax
2 mm
Sensitivity
98.8 dB
Power
120 W
PeerlessFSL-1220R02-08
£59.63 · 72% less, betterFs62 Hz −24%, better
Qts0.55 −7%
Vas61.1 L +18%, worse
BL13.3 T·m −21%, worse
Xmax5.1 mm +154%, better
Sensitivity96 dB −2.8, worse
CelestionTRUVOX 1225
£90.10 · 57% less, betterFs60 Hz −26%, better
Qts0.62 +6%
Vas54.1 L +4%
BL13.5 T·m −20%, worse
Xmax4.8 mm +138%, better
Sensitivity94.4 dB −4.4, worse
EminenceLEGEND GB128
£105.00 · 50% less, betterFs86 Hz +5%
Qts0.65 +10%, worse
Vas43.9 L −16%, better
BL12 T·m −29%, worse
Xmax0.8 mm −60%, worse
Sensitivity98.2 dB −0.6
EminenceTEXAS HEAT
£110.95 · 47% less, betterFs79 Hz −4%
Qts0.65 +10%, worse
Vas50.9 L –
BL12.8 T·m −24%, worse
Xmax0.8 mm −60%, worse
Sensitivity97.7 dB −1.1
SB AudienceNERO-12MWN400D
£211.70 · Same priceFs66 Hz −20%, better
Qts0.52 −12%, better
Vas31.1 L −40%, better
BL17.8 T·m +6%
Xmax7.1 mm +257%, better
Sensitivity94.1 dB −4.7, worse
VisatonPAW 30 ND
£222.00 · 6% more, worseFs52 Hz −37%, better
Qts0.46 −22%, better
Vas55.4 L +7%
BL15.4 T·m −8%
Xmax9 mm +350%, better
Sensitivity93.9 dB −4.9, worse
EminenceGA-SC59
£233.76 · 11% more, worseFs89 Hz +9%
Qts0.61 +3%
Vas41.2 L −21%, better
BL13.6 T·m −19%, worse
Xmax1.6 mm −19%, worse
Sensitivity98.7 dB –
B&C12CLX64
£236.92 · 13% more, worseFs54 Hz −34%, better
Qts0.57 −3%
Vas74 L +42%, worse
BL11.9 T·m −29%, worse
Xmax5.5 mm +175%, better
Sensitivity94.8 dB −4, worse
Dayton AudioUMII12-22
£254.04 · 21% more, worseFs31 Hz −62%, better
Qts0.56 −5%
Vas53 L –
BL14.8 T·m −12%, worse
Xmax22 mm +1000%, better
Sensitivity85.5 dB −13.3, worse
WavecorSW312WA06
£442.53 · 111% more, worseFs29 Hz −65%, better
Qts0.57 −3%
Vas61 L +17%, worse
BL18.4 T·m +10%
Xmax11.5 mm +475%, better
Sensitivity86 dB −12.8, worse
WavecorSW312WA05
No current priceFs29 Hz −65%, better
Qts0.57 −3%
Vas61 L +17%, worse
BL18.4 T·m +10%
Xmax11.5 mm +475%, better
Sensitivity86 dB −12.8, worse
EminenceGA-SC64
No current priceFs88 Hz +7%
Qts0.58 –
Vas45.0 L −14%, better
BL13.8 T·m −18%, worse
Xmax1.2 mm −39%, worse
Sensitivity99.1 dB –
LavoceWSF121.70G
No current priceFs82 Hz –
Qts0.59 –
Vas41 L −21%, better
BL13.6 T·m −19%, worse
Xmax2.7 mm +35%, better
Sensitivity97.6 dB −1.2
REDCATT121FIND
No current priceFs63 Hz −23%, better
Qts0.60 –
Vas49.8 L −4%
BL12.9 T·m −23%, worse
Xmax3.8 mm +88%, better
Sensitivity94.9 dB −3.9, worse
EminenceGUIT-FIDDLE
No current priceFs82 Hz –
Qts0.56 −5%
Vas57.8 L +11%, worse
BL13.1 T·m −22%, worse
Xmax0.8 mm −61%, worse
Sensitivity99.4 dB +0.6
P.AudioEX12-300S
No current priceFs66 Hz −20%, better
Qts0.54 −8%
Vas45.9 L −12%, better
BL13.7 T·m −18%, worse
Xmax3.1 mm +55%, better
Sensitivity95.2 dB −3.6, worse
CelestionTF1230
No current priceFs59 Hz −28%, better
Qts0.52 −13%, better
Vas51.1 L –
BL13.0 T·m −23%, worse
Xmax5 mm +150%, better
Sensitivity94.1 dB −4.7, worse
P.AudioGST-12500-V3
No current priceFs56 Hz −32%, better
Qts0.48 −19%, better
Vas52.9 L –
BL15.7 T·m −7%
Xmax3.3 mm +63%, better
Sensitivity94.6 dB −4.2, worse
JensenC12K-2-16
No current priceFs85 Hz +4%
Qts0.59 –
Vas42.1 L −19%, better
BL17.2 T·m –
Xmax1 mm −50%, worse
Sensitivity99.5 dB +0.7
No current price
Fs50 Hz −39%, better
Qts0.51 −14%, better
Vas66 L +27%, worse
BL16.4 T·m –
Xmax5.5 mm +175%, better
Sensitivity94 dB −4.8, worse
FaitalPRO12PR310
No current priceFs55 Hz −33%, better
Qts0.67 +14%, worse
Vas65.1 L +25%, worse
BL17.3 T·m –
Xmax4.9 mm +146%, better
Sensitivity93.9 dB −4.9, worse
EminenceSWAMP THANG
No current priceFs97 Hz +18%, worse
Qts0.53 −10%, better
Vas41.3 L −21%, better
BL14.2 T·m −15%, worse
Xmax0.8 mm −60%, worse
Sensitivity100.4 dB +1.6
CelestionTF1218
No current priceFs59 Hz −28%, better
Qts0.52 −13%, better
Vas83.0 L +60%, worse
BL11.2 T·m −33%, worse
Xmax2 mm –
Sensitivity96.5 dB −2.3, worse
JensenC12K-2-8
No current priceFs79 Hz −4%
Qts0.47 −20%, better
Vas43.1 L −17%, better
BL14.7 T·m −12%, worse
Xmax1 mm −50%, worse
Sensitivity97.4 dB −1.4
Sica12 PFS 3
No current priceFs43 Hz −48%, better
Qts0.47 −20%, better
Vas58.5 L +13%, worse
BL15.9 T·m −5%
Xmax7 mm +250%, better
Sensitivity91.6 dB −7.2, worse
P.Audio12BMA-300B
No current priceFs61 Hz −26%, better
Qts0.49 −17%, better
Vas54.4 L +5%
BL13.7 T·m −18%, worse
Xmax4 mm +100%, better
Sensitivity95.7 dB −3.1, worse
JensenJN12-80TRS-8
No current priceFs72 Hz −13%, better
Qts0.55 −7%
Vas56.5 L +9%
BL12.2 T·m −28%, worse
Xmax1 mm −50%, worse
Sensitivity96.7 dB −2.1, worse
VisatonPAW 30 ND - 8 OHM
No current priceFs52 Hz −37%, better
Qts0.46 −22%, better
Vas55.4 L +7%
BL15.4 T·m −8%
Xmax9 mm +350%, better
Sensitivity93.9 dB −4.9, worse
JensenMOD12-130-16
No current priceFs92 Hz +12%, worse
Qts0.73 +24%, worse
Vas31.6 L −39%, better
BL17.1 T·m –
Xmax2 mm –
Sensitivity98.2 dB −0.6
CelestionFTR12-2565D
No current priceFs60 Hz −26%, better
Qts0.42 −29%, better
Vas49.1 L −5%
BL15.4 T·m −8%
Xmax4 mm +100%, better
Sensitivity95.3 dB −3.5, 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 |
|---|---|---|---|---|
JP Leisure | £209.86, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £209.86 | In stock | Visit shop at JP Leisure | |
Blue Aran 3-5 months | £228.98 | 9.1% above the lowest price | Usually available in 3-5 months | Visit shop at Blue Aran |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£212.05 → £209.86Down 1.0% from £212.05
- 23 JunBlue Aran£229.15 → £228.98Down 0.1% from £229.15
- 5 JunBlue Aran£223.97 → £229.15Up 2.3% from £223.97