12-inch LF driver · CSF122 series · 65 mm voice coil · 300 W

Lavoce CSF122.50K 8Ω

Name: Lavoce CSF122.50K 8 Ohm
Brand: Lavoce
SKU: CSF122.50K
Availability: InStock

8 Ω · 45–20000 Hz

£168.20

Steady

Blue Aran · 6 in stock · All 1 offer

Open in 00 Simulator

Fs: 47Hz
Xmax: 6.3mm
SPL: 95dB
Pe: 300W
BL: 13.9T·m
Vd: 332cm³
Qts: 0.42
Vas: 90L

See all 25 specs

Published graphs

Specifications

Published by Lavoce

Manufacturer page

Lavoce CSF122.50K is a 12-inch 8 ohm LF driver rated at 300 W RMS. The validated T/S data includes Fs 47 Hz, Qts 0.42, Vas 89.8 L, Xmax 6.3 mm, sensitivity 95.2 dB, plus 332 cm³ Vd and 104 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 £168.20.

The published T/S values agree with each other

Thiele/Small

Fs: 47Hz
Qts: 0.42
Qes: 0.45
Qms: 5.8
Vas: 89.8L
Re: 5.8Ω
Le: 0.46mH

Motor and cone

BL: 13.9T·m
Sd: 531cm²
Mms: 51g
Xmax: 6.3mm
Vd †: 332cm³
Voice coil: 65mm

Power and response

Sensitivity †: 95.2dB
Manufacturer sensitivity: 97dB
Power: 300W
Impedance: 8Ω
Min. impedance: 6.6Ω
Range: 45–20000Hz
EBP †: 104 · Leans vented

Size and mounting

Weight: 5.6kg

Other published values

Cms: 0.23mm/N
Xmech: 10.25
Power Program: 600
High limit: 4000Hz

Sensitivity shows 95.2 dB, calculated from the T/S values. Lavoce publishes 97.0 dB, 1.8 dB apart.

Excursion and motor values come from the LF section; the frequency range spans every section.

† Calculated by bits from the published values

What this validation status means

Components and manufacturer details

LF

BL: 13.9T·m
Fs: 47Hz
Le: 0.46mH
Re: 5.8Ω
Sd: 531cm²
Cms: 0.23mm/N
Mms: 51g
Qes: 0.45
Qms: 5.8
Qts: 0.42
SPL: 95.2dB
Vas: 89.8L
Xmax: 6.3mm
Xmech: 10.25
Power: 300W
Impedance: 8Ω
Sensitivity: 97dB
Low limit: 45Hz
Power Program: 600
Calculated sensitivity †: 95.2dB
High limit: 4000Hz
Manufacturer sensitivity: 97dB
Min. impedance: 6.6Ω
Voice coil: 65mm
Weight: 5.6kg

HF

SPL: 105dB
Power: 60W
Impedance: 8Ω
Flux density: 1.65T
Sensitivity: 105dB
Low limit: 1000Hz
Power Program: 120
High limit: 20000Hz
Throat: 25mm
Manufacturer sensitivity: 105dB
Min. impedance: 7.6Ω
Voice coil: 44mm
Crossover: 1600Hz

Compare

Same-size drivers, compared with the CSF122.50K. Clear differences are green when better and red when worse.

This driverCSF122.50K

Best price

£168.20

47 Hz

Qts

0.42

Vas

89.8 L

13.9 T·m

Xmax

6.3 mm

Sensitivity

95.2 dB

Power

300 W

CelestionTF1220

£63.48 · 62% less

Fs56 Hz +19%

Qts0.39 −7%

Vas72.8 L −19%

BL13.9 T·m –

Xmax4 mm −36%

Sensitivity96.6 dB +1.4

PRV Audio12W750A

£63.52 · 62% less

Fs60 Hz +27%

Qts0.43 –

Vas81 L −10%

BL14.3 T·m –

Xmax3.6 mm −42%

Sensitivity98 dB +2.8

PRV Audio12W800A

£67.26 · 60% less

Fs50 Hz +6%

Qts0.47 +12%

Vas93.9 L +5%

BL12.7 T·m −9%

Xmax5.7 mm −8%

Sensitivity95.8 dB +0.6

CelestionK12H-100TC

£69.50 · 59% less

Fs56 Hz +18%

Qts0.40 −5%

Vas72.0 L −20%

BL13.6 T·m –

Xmax3 mm −52%

Sensitivity96.2 dB +1

GRS12SW-4HE

£70.29 · 58% less

Fs22 Hz −53%

Qts0.43 –

Vas80.4 L −10%

BL16.2 T·m +17%

Xmax12.5 mm +100%

Sensitivity84.5 dB −10.7

PeerlessFSL-1225R02-08

£71.81 · 57% less

Fs63 Hz +34%

Qts0.44 +5%

Vas54.8 L −39%

BL14.9 T·m +7%

Xmax5.3 mm −16%

Sensitivity96.5 dB +1.3

FaneSOVEREIGN 12-300/2

£72.00 · 57% less

Fs47 Hz –

Qts0.40 −5%

Vas80 L −11%

BL15.6 T·m +12%

Xmax5 mm −20%

Sensitivity94.9 dB –

CIAREFXI12

£96.29 · 43% less

Fs55 Hz +17%

Qts0.44 +5%

Vas70 L −22%

BL13.9 T·m –

Xmax5 mm −20%

Sensitivity95.8 dB +0.6

EminenceDELTA-12A

£98.74 · 41% less

Fs55 Hz +17%

Qts0.43 –

Vas81.3 L −9%

BL13.5 T·m –

Xmax2.4 mm −62%

Sensitivity96.7 dB +1.5

Dayton AudioDCS305-4

£116.39 · 31% less

Fs24 Hz −49%

Qts0.40 −5%

Vas92.3 L –

BL13.7 T·m –

Xmax9.3 mm +49%

Sensitivity86.9 dB −8.3

FaitalPRO12PR310

£135.00 · 20% less

Fs54 Hz +15%

Qts0.40 −5%

Vas73.5 L −18%

BL14.4 T·m +4%

Xmax4.9 mm −21%

Sensitivity96.5 dB +1.3

FaitalPRO12PR300

£135.81 · 19% less

Fs50 Hz +6%

Qts0.36 −14%

Vas92.6 L +3%

BL14.1 T·m –

Xmax4.9 mm −21%

Sensitivity97 dB +1.8

CIARECMI320ND

£149.07 · 11% less

Fs53 Hz +13%

Qts0.43 –

Vas70 L −22%

BL10.6 T·m −24%

Xmax5 mm −20%

Sensitivity95.8 dB +0.6

FaitalPRO12PR320

£154.90 · 8% less

Fs42 Hz −11%

Qts0.37 −12%

Vas113.3 L +26%

BL13.5 T·m –

Xmax7.4 mm +18%

Sensitivity95.4 dB –

Sica12 PF 3

£166.62 · Same price

Fs47 Hz –

Qts0.39 −7%

Vas76.5 L −15%

BL15.4 T·m +11%

Xmax5.5 mm −12%

Sensitivity94.8 dB –

Sica12 SR 3 PL

£208.49 · 24% more

Fs36 Hz −23%

Qts0.42 –

Vas60.4 L −33%

BL17.0 T·m +22%

Xmax7 mm +12%

Sensitivity90 dB −5.2

CelestionFTX1225

£239.00 · 42% more

Fs47 Hz –

Qts0.40 −6%

Vas84.6 L −6%

BL14 T·m –

Xmax6 mm −4%

Sensitivity95.1 dB –

FaitalPRO12HX230

£250.31 · 49% more

Fs55 Hz +17%

Qts0.43 –

Vas67.7 L −25%

BL14.1 T·m –

Xmax7.4 mm +18%

Sensitivity95.9 dB +0.7

Dayton AudioRSS315HF-4

£251.11 · 49% more

Fs24 Hz −49%

Qts0.39 −7%

Vas84.1 L −6%

BL14.0 T·m –

Xmax14.3 mm +129%

Sensitivity86.3 dB −8.9

LavoceCAF123.00T

£257.89 · 53% more

Fs53 Hz +13%

Qts0.36 −14%

Vas71.4 L −20%

BL15.2 T·m +9%

Xmax6 mm −4%

Sensitivity96.4 dB +1.2

LavoceCAF123.00TH

£268.19 · 59% more

Fs53 Hz +13%

Qts0.36 −14%

Vas71.4 L −20%

BL15.2 T·m +9%

Xmax6 mm −4%

Sensitivity96.4 dB +1.2

JensenBS12N250A-8

No current price

Fs47 Hz –

Qts0.43 –

Vas81.3 L −9%

BL14.4 T·m +3%

Xmax5.5 mm −12%

Sensitivity94.8 dB –

No photo

PHL Audio4511

No current price

Fs48 Hz –

Qts0.40 −5%

Vas74.1 L −17%

BL15.1 T·m +9%

Xmax7 mm +12%

Sensitivity94.6 dB −0.6

CIAREHSB322

No current price

Fs35 Hz −26%

Qts0.42 –

Vas83 L −8%

BL12 T·m −14%

Xmax7.5 mm +20%

Sensitivity90.8 dB −4.4

CelestionTF1230SL

No current price

Fs57 Hz +21%

Qts0.39 −7%

Vas53.8 L −40%

BL15.7 T·m +13%

Xmax6 mm −4%

Sensitivity95.6 dB –

Sica12 C 2 CP

No current price

Fs58 Hz +24%

Qts0.45 +7%

Vas74.3 L −17%

BL13.7 T·m –

Xmax4.5 mm −28%

Sensitivity96.8 dB +1.6

FaneCOLOSSUS 12MBN

No current price

Fs55 Hz +17%

Qts0.40 −6%

Vas56 L −38%

BL16.6 T·m +19%

Xmax5.5 mm −12%

Sensitivity95.3 dB –

REDCATT121XR

No current price

Fs46 Hz –

Qts0.33 −21%

Vas69.1 L −23%

BL16 T·m +15%

Xmax6.3 mm –

Sensitivity94.1 dB −1.1

JensenBS10N250A-8

No current price

Fs58 Hz +23%

Qts0.43 –

Vas30.9 L −66%

BL12.9 T·m −7%

Xmax5 mm −20%

Sensitivity93.2 dB −2

PRV Audio12MR1000

No current price

Fs49 Hz +5%

Qts0.39 −7%

Vas92.3 L –

BL15.9 T·m +14%

Xmax3 mm −52%

Sensitivity96.5 dB +1.3

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Blue Aran Checked 24 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£168.20, the lowest price		6 in stock	Visit shop at Blue Aran

Best price over time

Tracked since 1 Apr

bits00 AUDIO

12-inch LF driver · CSF122 series · 65 mm voice coil · 300 W

Lavoce CSF122.50K 8Ω

8 Ω · 45–20000 Hz

£168.20

Steady

Blue Aran · 6 in stock · All 1 offer

Open in 00 Simulator

Fs: 47Hz
Xmax: 6.3mm
SPL: 95dB
Pe: 300W
BL: 13.9T·m
Vd: 332cm³
Qts: 0.42
Vas: 90L

See all 25 specs

Published graphs

Specifications

Published by Lavoce

Manufacturer page

The published T/S values agree with each other

Thiele/Small

Fs: 47Hz
Qts: 0.42
Qes: 0.45
Qms: 5.8
Vas: 89.8L
Re: 5.8Ω
Le: 0.46mH

Motor and cone

BL: 13.9T·m
Sd: 531cm²
Mms: 51g
Xmax: 6.3mm
Vd †: 332cm³
Voice coil: 65mm

Power and response

Sensitivity †: 95.2dB
Manufacturer sensitivity: 97dB
Power: 300W
Impedance: 8Ω
Min. impedance: 6.6Ω
Range: 45–20000Hz
EBP †: 104 · Leans vented

Size and mounting

Weight: 5.6kg

Other published values

Cms: 0.23mm/N
Xmech: 10.25
Power Program: 600
High limit: 4000Hz

Sensitivity shows 95.2 dB, calculated from the T/S values. Lavoce publishes 97.0 dB, 1.8 dB apart.

Excursion and motor values come from the LF section; the frequency range spans every section.

† Calculated by bits from the published values

What this validation status means

Components and manufacturer details

LF

BL: 13.9T·m
Fs: 47Hz
Le: 0.46mH
Re: 5.8Ω
Sd: 531cm²
Cms: 0.23mm/N
Mms: 51g
Qes: 0.45
Qms: 5.8
Qts: 0.42
SPL: 95.2dB
Vas: 89.8L
Xmax: 6.3mm
Xmech: 10.25
Power: 300W
Impedance: 8Ω
Sensitivity: 97dB
Low limit: 45Hz
Power Program: 600
Calculated sensitivity †: 95.2dB
High limit: 4000Hz
Manufacturer sensitivity: 97dB
Min. impedance: 6.6Ω
Voice coil: 65mm
Weight: 5.6kg

HF

SPL: 105dB
Power: 60W
Impedance: 8Ω
Flux density: 1.65T
Sensitivity: 105dB
Low limit: 1000Hz
Power Program: 120
High limit: 20000Hz
Throat: 25mm
Manufacturer sensitivity: 105dB
Min. impedance: 7.6Ω
Voice coil: 44mm
Crossover: 1600Hz

Compare

Same-size drivers, compared with the CSF122.50K. Clear differences are green when better and red when worse.

This driverCSF122.50K

Best price

£168.20

47 Hz

Qts

0.42

Vas

89.8 L

13.9 T·m

Xmax

6.3 mm

Sensitivity

95.2 dB

Power

300 W

CelestionTF1220

£63.48 · 62% less

Fs56 Hz +19%

Qts0.39 −7%

Vas72.8 L −19%

BL13.9 T·m –

Xmax4 mm −36%

Sensitivity96.6 dB +1.4

PRV Audio12W750A

£63.52 · 62% less

Fs60 Hz +27%

Qts0.43 –

Vas81 L −10%

BL14.3 T·m –

Xmax3.6 mm −42%

Sensitivity98 dB +2.8

PRV Audio12W800A

£67.26 · 60% less

Fs50 Hz +6%

Qts0.47 +12%

Vas93.9 L +5%

BL12.7 T·m −9%

Xmax5.7 mm −8%

Sensitivity95.8 dB +0.6

CelestionK12H-100TC

£69.50 · 59% less

Fs56 Hz +18%

Qts0.40 −5%

Vas72.0 L −20%

BL13.6 T·m –

Xmax3 mm −52%

Sensitivity96.2 dB +1

GRS12SW-4HE

£70.29 · 58% less

Fs22 Hz −53%

Qts0.43 –

Vas80.4 L −10%

BL16.2 T·m +17%

Xmax12.5 mm +100%

Sensitivity84.5 dB −10.7

PeerlessFSL-1225R02-08

£71.81 · 57% less

Fs63 Hz +34%

Qts0.44 +5%

Vas54.8 L −39%

BL14.9 T·m +7%

Xmax5.3 mm −16%

Sensitivity96.5 dB +1.3

FaneSOVEREIGN 12-300/2

£72.00 · 57% less

Fs47 Hz –

Qts0.40 −5%

Vas80 L −11%

BL15.6 T·m +12%

Xmax5 mm −20%

Sensitivity94.9 dB –

CIAREFXI12

£96.29 · 43% less

Fs55 Hz +17%

Qts0.44 +5%

Vas70 L −22%

BL13.9 T·m –

Xmax5 mm −20%

Sensitivity95.8 dB +0.6

EminenceDELTA-12A

£98.74 · 41% less

Fs55 Hz +17%

Qts0.43 –

Vas81.3 L −9%

BL13.5 T·m –

Xmax2.4 mm −62%

Sensitivity96.7 dB +1.5

Dayton AudioDCS305-4

£116.39 · 31% less

Fs24 Hz −49%

Qts0.40 −5%

Vas92.3 L –

BL13.7 T·m –

Xmax9.3 mm +49%

Sensitivity86.9 dB −8.3

FaitalPRO12PR310

£135.00 · 20% less

Fs54 Hz +15%

Qts0.40 −5%

Vas73.5 L −18%

BL14.4 T·m +4%

Xmax4.9 mm −21%

Sensitivity96.5 dB +1.3

FaitalPRO12PR300

£135.81 · 19% less

Fs50 Hz +6%

Qts0.36 −14%

Vas92.6 L +3%

BL14.1 T·m –

Xmax4.9 mm −21%

Sensitivity97 dB +1.8

CIARECMI320ND

£149.07 · 11% less

Fs53 Hz +13%

Qts0.43 –

Vas70 L −22%

BL10.6 T·m −24%

Xmax5 mm −20%

Sensitivity95.8 dB +0.6

FaitalPRO12PR320

£154.90 · 8% less

Fs42 Hz −11%

Qts0.37 −12%

Vas113.3 L +26%

BL13.5 T·m –

Xmax7.4 mm +18%

Sensitivity95.4 dB –

Sica12 PF 3

£166.62 · Same price

Fs47 Hz –

Qts0.39 −7%

Vas76.5 L −15%

BL15.4 T·m +11%

Xmax5.5 mm −12%

Sensitivity94.8 dB –

Sica12 SR 3 PL

£208.49 · 24% more

Fs36 Hz −23%

Qts0.42 –

Vas60.4 L −33%

BL17.0 T·m +22%

Xmax7 mm +12%

Sensitivity90 dB −5.2

CelestionFTX1225

£239.00 · 42% more

Fs47 Hz –

Qts0.40 −6%

Vas84.6 L −6%

BL14 T·m –

Xmax6 mm −4%

Sensitivity95.1 dB –

FaitalPRO12HX230

£250.31 · 49% more

Fs55 Hz +17%

Qts0.43 –

Vas67.7 L −25%

BL14.1 T·m –

Xmax7.4 mm +18%

Sensitivity95.9 dB +0.7

Dayton AudioRSS315HF-4

£251.11 · 49% more

Fs24 Hz −49%

Qts0.39 −7%

Vas84.1 L −6%

BL14.0 T·m –

Xmax14.3 mm +129%

Sensitivity86.3 dB −8.9

LavoceCAF123.00T

£257.89 · 53% more

Fs53 Hz +13%

Qts0.36 −14%

Vas71.4 L −20%

BL15.2 T·m +9%

Xmax6 mm −4%

Sensitivity96.4 dB +1.2

LavoceCAF123.00TH

£268.19 · 59% more

Fs53 Hz +13%

Qts0.36 −14%

Vas71.4 L −20%

BL15.2 T·m +9%

Xmax6 mm −4%

Sensitivity96.4 dB +1.2

JensenBS12N250A-8

No current price

Fs47 Hz –

Qts0.43 –

Vas81.3 L −9%

BL14.4 T·m +3%

Xmax5.5 mm −12%

Sensitivity94.8 dB –

No photo

PHL Audio4511

No current price

Fs48 Hz –

Qts0.40 −5%

Vas74.1 L −17%

BL15.1 T·m +9%

Xmax7 mm +12%

Sensitivity94.6 dB −0.6

CIAREHSB322

No current price

Fs35 Hz −26%

Qts0.42 –

Vas83 L −8%

BL12 T·m −14%

Xmax7.5 mm +20%

Sensitivity90.8 dB −4.4

CelestionTF1230SL

No current price

Fs57 Hz +21%

Qts0.39 −7%

Vas53.8 L −40%

BL15.7 T·m +13%

Xmax6 mm −4%

Sensitivity95.6 dB –

Sica12 C 2 CP

No current price

Fs58 Hz +24%

Qts0.45 +7%

Vas74.3 L −17%

BL13.7 T·m –

Xmax4.5 mm −28%

Sensitivity96.8 dB +1.6

FaneCOLOSSUS 12MBN

No current price

Fs55 Hz +17%

Qts0.40 −6%

Vas56 L −38%

BL16.6 T·m +19%

Xmax5.5 mm −12%

Sensitivity95.3 dB –

REDCATT121XR

No current price

Fs46 Hz –

Qts0.33 −21%

Vas69.1 L −23%

BL16 T·m +15%

Xmax6.3 mm –

Sensitivity94.1 dB −1.1

JensenBS10N250A-8

No current price

Fs58 Hz +23%

Qts0.43 –

Vas30.9 L −66%

BL12.9 T·m −7%

Xmax5 mm −20%

Sensitivity93.2 dB −2

PRV Audio12MR1000

No current price

Fs49 Hz +5%

Qts0.39 −7%

Vas92.3 L –

BL15.9 T·m +14%

Xmax3 mm −52%

Sensitivity96.5 dB +1.3

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Blue Aran Checked 24 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£168.20, the lowest price		6 in stock	Visit shop at Blue Aran

Best price over time

Tracked since 1 Apr