PeerlessFSL-1220R02-08
£59.63 · Same priceFs62 Hz +5%
Qts0.55 +6%
Vas61.1 L +3%
BL13.3 T·m +30%, better
Xmax5.1 mm +174%, better
Sensitivity96 dB +0.6
12-inch LF driver · 51 mm voice coil · 250 W
REDCATT 121FIND 4Ω
£59.72
Lautsprecherteile · 8 in stock · All 1 offer
- Fs
- 59Hz
- Xmax
- 1.9mm
- SPL
- 95dB
- Pe
- 250W
- BL
- 10.2T·m
- Vd
- 98cm³
- Qts
- 0.52
- Vas
- 59L
REDCATT 121FIND is a 12-inch 4 ohm LF driver rated at 250 W RMS. The validated T/S data includes Fs 59 Hz, Qts 0.52, Vas 59.1 L, Xmax 1.9 mm, sensitivity 95.4 dB, plus 98 cm³ Vd and 105 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £59.72.
The published T/S values agree with each other
Thiele/Small
- Fs
- 59Hz
- Qts
- 0.52
- Qes
- 0.56
- Qms
- 7.3
- Vas
- 59.1L
- Re
- 3.1Ω
- Le
- 0.32mH
Motor and cone
- BL
- 10.2T·m
- Sd
- 531cm²
- Mms
- 49g
- Xmax
- 1.9mm
- Vd †
- 98cm³
- Voice coil
- 51mm
Power and response
- Sensitivity †
- 95.4dB
- Manufacturer sensitivity
- 96.4dB
- Power
- 250W
- Impedance
- 4Ω
- EBP †
- 105 · Leans vented
Size and mounting
- Diameter
- 320mm
- Cutout
- 282mm
- Bolt circle
- 302mm
- Weight
- 4.6kg
Other published values
- Xmech
- 9.85
- Power Peak
- 1000
Other dimensions
- Mounting Depth
- 124
Sensitivity shows 95.4 dB, calculated from the T/S values. REDCATT publishes 96.4 dB, 1.0 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else REDCATT lists
LF · Primary · 12″
- BL
- 10.2T·m
- Fs
- 59Hz
- Le
- 0.32mH
- Re
- 3.1Ω
- Sd
- 531cm²
- Mms
- 49g
- Qes
- 0.56
- Qms
- 7.3
- Qts
- 0.52
- SPL
- 95.4dB
- Vas
- 59.1L
- Xmax
- 1.9mm
- Xmech
- 9.85
- Power
- 250W
- Impedance
- 4Ω
- Power Peak
- 1000
- Sensitivity
- 96.4dB
- Calculated sensitivity †
- 95.4dB
- Manufacturer sensitivity
- 96.4dB
- Voice coil
- 51mm
- Weight
- 4.6kg
- Diameter
- 320mm
- Mounting Depth
- 124
- Cutout
- 282mm
- Bolt circle
- 302mm
02
Compare
Same-size drivers, compared with the 121FIND. Clear differences are green when better and red when worse.
This driver121FIND
Best price
£59.72
Fs
59 Hz
Qts
0.52
Vas
59.1 L
BL
10.2 T·m
Xmax
1.9 mm
Sensitivity
95.4 dB
Power
250 W
SB AudienceBIANCO-12MW200
£68.29 · 14% more, worseFs51 Hz −14%, better
Qts0.49 −6%
Vas62.9 L +6%
BL14.7 T·m +44%, better
Xmax7.0 mm +277%, better
Sensitivity94.2 dB −1.2
Beyma12CMV3
£79.05 · 32% more, worseFs52 Hz −12%, better
Qts0.55 +6%
Vas85 L +44%, worse
BL12.3 T·m +21%, better
Xmax7 mm +278%, better
Sensitivity95.2 dB –
EminenceBETA 12CX
£95.30 · 60% more, worseFs47 Hz −20%, better
Qts0.48 −8%
Vas120.9 L +105%, worse
BL10.8 T·m +6%
Xmax3.5 mm +89%, better
Sensitivity95.9 dB +0.5
EminenceDELTA-12LFC
£105.78 · 77% more, worseFs52 Hz −12%, better
Qts0.44 −15%, better
Vas63.7 L +8%
BL10.9 T·m +7%
Xmax4.8 mm +159%, better
Sensitivity94.8 dB −0.6
B&C320K/C-A
£107.29 · 80% more, worseFs82 Hz +39%, worse
Qts0.50 −4%
Vas53 L −10%, better
BL12.2 T·m +20%, better
Xmax2 mm +8%
Sensitivity99.5 dB +4.1, better
EminenceLEGEND BP 122
£120.00 · 101% more, worseFs35 Hz −41%, better
Qts0.54 +4%
Vas157.4 L +166%, worse
BL10.6 T·m +3%
Xmax6.2 mm +235%, better
Sensitivity92.8 dB −2.6, worse
B&C12CLX64
£236.92 · 297% more, worseFs54 Hz −8%
Qts0.57 +10%
Vas74 L +25%, worse
BL11.9 T·m +16%, better
Xmax5.5 mm +197%, better
Sensitivity94.8 dB −0.6
WavecorSW312WA06
£446.09 · 647% more, worseFs29 Hz −51%, better
Qts0.57 +10%
Vas61 L +3%
BL18.4 T·m +80%, better
Xmax11.5 mm +522%, better
Sensitivity86 dB −9.4, worse
FaitalPRO12FE400
No current priceFs55 Hz −7%
Qts0.52 –
Vas69.1 L +17%, worse
BL10.2 T·m –
Xmax5.4 mm +193%, better
Sensitivity95.2 dB –
CelestionTF1218
No current priceFs59 Hz –
Qts0.52 –
Vas83.0 L +41%, worse
BL11.2 T·m +10%, better
Xmax2 mm +8%
Sensitivity96.5 dB +1.1
EminenceDELTALITE 2512
No current priceFs53 Hz −10%
Qts0.52 –
Vas67.4 L +14%, worse
BL11.6 T·m +14%, better
Xmax4.9 mm +165%, better
Sensitivity94 dB −1.4
EminenceGUIT-FIDDLE
No current priceFs82 Hz +39%, worse
Qts0.56 +8%
Vas57.8 L –
BL13.1 T·m +29%, better
Xmax0.8 mm −57%, worse
Sensitivity99.4 dB +4, better
LavoceLBASS12-15
No current priceFs38 Hz −36%, better
Qts0.48 −8%
Vas160.9 L +172%, worse
BL10.1 T·m –
Xmax4.7 mm +154%, better
Sensitivity94 dB −1.4
No current price
Fs50 Hz −15%, better
Qts0.51 –
Vas66 L +12%, worse
BL16.4 T·m +60%, better
Xmax5.5 mm +197%, better
Sensitivity94 dB −1.4
CelestionTF1230
No current priceFs59 Hz –
Qts0.52 –
Vas51.1 L −14%, better
BL13.0 T·m +27%, better
Xmax5 mm +170%, better
Sensitivity94.1 dB −1.3
P.Audio12BMA-300B
No current priceFs61 Hz +3%
Qts0.49 −6%
Vas54.4 L −8%
BL13.7 T·m +34%, better
Xmax4 mm +116%, better
Sensitivity95.7 dB –
Acoustic EleganceSBP12-4
No current priceFs24 Hz −60%, better
Qts0.48 −8%
Vas160 L +171%, worse
BL10.5 T·m –
Xmax14 mm +657%, better
Sensitivity87.9 dB −7.5, worse
JensenJN12-80TRS-8
No current priceFs72 Hz +22%, worse
Qts0.55 +6%
Vas56.5 L −4%
BL12.2 T·m +19%, better
Xmax1 mm −46%, worse
Sensitivity96.7 dB +1.3
CIAREFXI12
No current priceFs55 Hz −7%
Qts0.44 −15%, better
Vas70 L +18%, worse
BL10.7 T·m +5%
Xmax5 mm +170%, better
Sensitivity96.2 dB +0.8
HiViSS12
No current priceFs33 Hz −44%, better
Qts0.55 +6%
Vas105.9 L +79%, worse
BL10.7 T·m +5%
Xmax7.3 mm +295%, better
Sensitivity90 dB −5.4, worse
WavecorSW312WA05
No current priceFs29 Hz −51%, better
Qts0.57 +10%
Vas61 L +3%
BL18.4 T·m +80%, better
Xmax11.5 mm +522%, better
Sensitivity86 dB −9.4, worse
Acoustic EleganceIB12AU-4
No current priceFs24 Hz −59%, better
Qts0.51 –
Vas160 L +171%, worse
BL8.8 T·m −14%, worse
Xmax18 mm +873%, better
Sensitivity87.8 dB −7.6, worse
EminenceSWAMP THANG
No current priceFs97 Hz +64%, worse
Qts0.53 –
Vas41.3 L −30%, better
BL14.2 T·m +39%, better
Xmax0.8 mm −57%, worse
Sensitivity100.4 dB +5, better
Sica12 PFS 3
No current priceFs43 Hz −27%, better
Qts0.47 −10%
Vas58.5 L –
BL15.9 T·m +56%, better
Xmax7 mm +278%, better
Sensitivity91.6 dB −3.8, worse
WavecorSW312WA03
No current priceFs28 Hz −53%, better
Qts0.48 −8%
Vas61 L +3%
BL14.5 T·m +42%, better
Xmax11.5 mm +522%, better
Sensitivity86.3 dB −9.1, worse
WavecorSW312WA04
No current priceFs28 Hz −53%, better
Qts0.48 −8%
Vas61 L +3%
BL14.5 T·m +42%, better
Xmax11.5 mm +522%, better
Sensitivity86.3 dB −9.1, worse
JensenN12D-4
No current priceFs63 Hz +6%
Qts0.37 −29%, better
Vas63.8 L +8%
BL10.1 T·m –
Xmax1 mm −46%, worse
Sensitivity97.4 dB +2, better
CIARECMI320ND
No current priceFs53 Hz −10%, better
Qts0.43 −17%, better
Vas70 L +18%, worse
BL10.6 T·m +4%
Xmax5 mm +170%, better
Sensitivity95.8 dB –
JensenJN12-100TRS-8
No current priceFs72 Hz +22%, worse
Qts0.52 –
Vas55.9 L −5%
BL12.9 T·m +27%, better
Xmax1 mm −46%, worse
Sensitivity96.5 dB +1.1
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 |
|---|---|---|---|---|
Lautsprecherteile | £59.72, the lowest price | 8 in stock | Visit shop at Lautsprecherteile |
Best price over time
Tracked since 1 Oct