LavoceWSF122.50
£75.52Fs49 Hz +7%
Qts0.33 –
Vas70.2 L –
BL17.2 T·m +7%
Xmax4.7 mm −26%, worse
Sensitivity95.8 dB +1.7
12-inch LF driver · 64 mm voice coil · 500 W
REDCATT 121XR 8Ω
8 Ω
No price for delivery to the UK
- Fs
- 46Hz
- Xmax
- 6.3mm
- SPL
- 94dB
- Pe
- 500W
- BL
- 16T·m
- Vd
- 337cm³
- Qts
- 0.33
- Vas
- 69L
REDCATT 121XR is a 12-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 46 Hz, Qts 0.33, Vas 69.1 L, Xmax 6.3 mm, sensitivity 94.1 dB, plus 337 cm³ Vd and 110 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
- 46Hz
- Qts
- 0.33
- Qes
- 0.42
- Qms
- 1.6
- Vas
- 69.1L
- Re
- 5.6Ω
- Le
- 0.16mH
Motor and cone
- BL
- 16T·m
- Sd
- 531cm²
- Mms
- 67g
- Xmax
- 6.3mm
- Vd †
- 337cm³
- Voice coil
- 64mm
Power and response
- Sensitivity †
- 94.1dB
- Manufacturer sensitivity
- 95.8dB
- Power
- 500W
- Impedance
- 8Ω
- EBP †
- 110 · Leans vented
Size and mounting
- Diameter
- 320mm
- Cutout
- 281mm
- Bolt circle
- 299mm
- Weight
- 5.1kg
Other published values
- Xmech
- 29.85
- Power Peak
- 2000
Other dimensions
- Mounting Depth
- 172.5
Sensitivity shows 94.1 dB, calculated from the T/S values. REDCATT publishes 95.8 dB, 1.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else REDCATT lists
LF · Primary · 12″
- BL
- 16T·m
- Fs
- 46Hz
- Le
- 0.16mH
- Re
- 5.6Ω
- Sd
- 531cm²
- Mms
- 67g
- Qes
- 0.42
- Qms
- 1.6
- Qts
- 0.33
- SPL
- 94.1dB
- Vas
- 69.1L
- Xmax
- 6.3mm
- Xmech
- 29.85
- Power
- 500W
- Impedance
- 8Ω
- Power Peak
- 2000
- Sensitivity
- 95.8dB
- Calculated sensitivity †
- 94.1dB
- Manufacturer sensitivity
- 95.8dB
- Voice coil
- 64mm
- Weight
- 5.1kg
- Diameter
- 320mm
- Mounting Depth
- 172.5
- Cutout
- 281mm
- Bolt circle
- 299mm
02
Compare
Same-size drivers, compared with the 121XR. Clear differences are green when better and red when worse.
This driver121XR
Best price
–
Fs
46 Hz
Qts
0.33
Vas
69.1 L
BL
16 T·m
Xmax
6.3 mm
Sensitivity
94.1 dB
Power
500 W
CelestionTF1225E
£99.00Fs53 Hz +14%, worse
Qts0.33 –
Vas67.7 L –
BL17.7 T·m +10%, better
Xmax5.3 mm −17%, worse
Sensitivity96.3 dB +2.2, better
LavoceWSN122.50
£100.53Fs53 Hz +15%, worse
Qts0.36 +9%
Vas69.4 L –
BL15.8 T·m –
Xmax4.7 mm −26%, worse
Sensitivity96.3 dB +2.2, better
MonacorTF1225E/8
£105.60Fs53 Hz +14%, worse
Qts0.33 –
Vas67 L −3%
BL17.7 T·m +10%, better
Xmax5 mm −21%, worse
Sensitivity96.3 dB +2.2, better
Dayton AudioDSA315-8
£105.77Fs24 Hz −47%, better
Qts0.33 –
Vas147 L +113%, worse
BL16.1 T·m –
Xmax5.5 mm −13%, worse
Sensitivity89.2 dB −4.9, worse
PRV Audio12MB1000FT
£120.82Fs53 Hz +15%, worse
Qts0.37 +12%, worse
Vas74.6 L +8%
BL16.5 T·m +3%
Xmax6.9 mm +8%
Sensitivity96.6 dB +2.5, better
CelestionCF1230BMB
£145.00Fs43 Hz −6%
Qts0.38 +15%, worse
Vas60.7 L −12%, better
BL18.4 T·m +15%, better
Xmax7 mm +10%, better
Sensitivity92.8 dB −1.3
Sica12 PF 3
£168.12Fs47 Hz –
Qts0.39 +18%, worse
Vas76.5 L +11%, worse
BL15.4 T·m −4%
Xmax5.5 mm −13%, worse
Sensitivity94.8 dB +0.7
Eighteen Sound12W700
£179.00Fs58 Hz +26%, worse
Qts0.36 +9%
Vas55 L −20%, better
BL17.7 T·m +11%, better
Xmax6.5 mm –
Sensitivity96.7 dB +2.6, better
EminenceKAPPALITE 3012HO
£188.89Fs52 Hz +13%, worse
Qts0.32 −3%
Vas81.1 L +17%, worse
BL15.9 T·m –
Xmax6.2 mm –
Sensitivity97.4 dB +3.3, better
B&C12FCX76
£294.14Fs47 Hz –
Qts0.34 +3%
Vas82 L +19%, worse
BL15.6 T·m –
Xmax5 mm −21%, worse
Sensitivity95.9 dB +1.8
FaitalPRO12HX240
£328.63Fs56 Hz +22%, worse
Qts0.37 +12%, worse
Vas61.1 L −12%, better
BL16 T·m –
Xmax7.4 mm +16%, better
Sensitivity96.5 dB +2.4, better
CelestionCNX1230
No current priceFs54 Hz +17%, worse
Qts0.34 –
Vas68.4 L –
BL16.3 T·m –
Xmax6.5 mm –
Sensitivity96.8 dB +2.7, better
LavoceCAF123.00T
No current priceFs53 Hz +15%, worse
Qts0.36 +9%
Vas71.4 L +3%
BL15.2 T·m −5%
Xmax6 mm −6%
Sensitivity96.4 dB +2.3, better
LavoceCAF123.00TH
No current priceFs53 Hz +15%, worse
Qts0.36 +9%
Vas71.4 L +3%
BL15.2 T·m −5%
Xmax6 mm −6%
Sensitivity96.4 dB +2.3, better
Eighteen Sound12MB606
No current priceFs50 Hz +9%
Qts0.32 −3%
Vas84 L +22%, worse
BL16 T·m –
Xmax6.5 mm –
Sensitivity96.9 dB +2.8, better
Sica12 S 3 PL
No current priceFs42 Hz −9%
Qts0.34 +3%
Vas76.9 L +11%, worse
BL16.8 T·m +5%
Xmax7 mm +10%, better
Sensitivity94 dB –
PRV Audio12MB2000FT
No current priceFs56 Hz +21%, worse
Qts0.32 −3%
Vas66.9 L −3%
BL17.7 T·m +11%, better
Xmax6 mm −6%
Sensitivity97.5 dB +3.4, better
CIARE12.75W1
No current priceFs49 Hz +7%
Qts0.33 –
Vas67 L −3%
BL18.9 T·m +18%, better
Xmax6 mm −6%
Sensitivity95.7 dB +1.6
Oberton12NMB35
No current priceFs54 Hz +18%, worse
Qts0.36 +9%
Vas54.3 L −21%, better
BL17 T·m +6%
Xmax6.8 mm +6%
Sensitivity95.7 dB +1.6
Eighteen Sound12W600
No current priceFs50 Hz +9%
Qts0.30 −9%
Vas73 L +6%
BL17.3 T·m +8%
Xmax6.5 mm –
Sensitivity96.6 dB +2.5, better
CelestionTF1230SL
No current priceFs57 Hz +23%, worse
Qts0.39 +18%, worse
Vas53.8 L −22%, better
BL15.7 T·m –
Xmax6 mm −6%
Sensitivity95.6 dB +1.5
P.Audio12BM-500B
No current priceFs52 Hz +13%, worse
Qts0.35 +6%
Vas69.8 L –
BL16.6 T·m +4%
Xmax4.8 mm −24%, worse
Sensitivity96.3 dB +2.2, better
P.Audio12BMA-500B
No current priceFs57 Hz +24%, worse
Qts0.34 +3%
Vas61.4 L −11%, better
BL16.7 T·m +4%
Xmax5 mm −21%, worse
Sensitivity97 dB +2.9, better
PRV Audio12MB2000FT-NDY
No current priceFs55 Hz +20%, worse
Qts0.30 −9%
Vas71.5 L +3%
BL17.7 T·m +11%, better
Xmax6 mm −6%
Sensitivity97.9 dB +3.8, better
Oberton12CX
No current priceFs51 Hz +11%, worse
Qts0.35 +5%
Vas58.5 L −15%, better
BL17.4 T·m +9%
Xmax5.3 mm −17%, worse
Sensitivity95.4 dB +1.3
MonacorSP-12A/302PA
No current priceFs50 Hz +9%
Qts0.34 +3%
Vas77 L +11%, worse
BL17.0 T·m +6%
Xmax5 mm −21%, worse
Sensitivity96.4 dB +2.3, better
MonacorSP-312CX
No current priceFs55 Hz +20%, worse
Qts0.33 –
Vas64 L −7%
BL16.9 T·m +6%
Xmax3 mm −53%, worse
Sensitivity96.7 dB +2.6, better
No photo
PHL Audio4511
No current priceFs48 Hz +4%
Qts0.40 +21%, worse
Vas74.1 L +7%
BL15.1 T·m −6%
Xmax7 mm +10%, better
Sensitivity94.6 dB +0.5
Oberton12HCX
No current priceFs53 Hz +14%, worse
Qts0.33 –
Vas55.5 L −20%, better
BL17.8 T·m +11%, better
Xmax5.3 mm −17%, worse
Sensitivity95.6 dB +1.5
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
None of the shops we track lists delivery to the UK at checkout.