12-inch LF driver · FTX1225 series · 45 mm voice coil · 60 W

Celestion FTX1225 8Ω

Name: Celestion FTX1225 8 Ohm
Brand: Celestion
SKU: FTX1225
Availability: InStock

8 Ω · 1000–20000 Hz

£239.00

Steady

Lean Audio · 1 in stock · All 1 offer

Open in 00 Simulator

Fs: 47Hz
Xmax: 6mm
SPL: 95dB
Pe: 60W
BL: 14T·m
Vd: 319cm³
Qts: 0.40
Vas: 85L

See all 27 specs

Published graphs

Specifications

Published by Celestion

Manufacturer page

Datasheet PDF

Celestion FTX1225 is a 12-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 47 Hz, Qts 0.40, Vas 84.6 L, Xmax 6 mm, sensitivity 95.1 dB, plus 319 cm³ Vd and 108 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 £239.00.

The published T/S values agree with each other

Thiele/Small

Fs: 47Hz
Qts: 0.40
Qes: 0.44
Qms: 4.2
Vas: 84.6L
Re: 5.4Ω
Le: 3.36mH

Motor and cone

BL: 14T·m
Sd: 531cm²
Mms: 54g
Xmax: 6mm
Vd †: 319cm³
Voice coil: 45mm

Power and response

Sensitivity †: 95.1dB
Manufacturer sensitivity: 104dB
Power: 60W
Impedance: 8Ω
Range: 1000–20000Hz
EBP †: 108 · Leans vented

Size and mounting

Diameter: 318mm
Cutout: 286mm
Bolt circle: 304mm
Depth: 168mm
Weight: 5.9kg

Other published values

Cms: 0.21mm/N
Rms: 3.77kg/s
Power Program: 120

Sensitivity shows 95.1 dB, calculated from the T/S values. Celestion publishes 104.0 dB, 8.9 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 · Primary · 12″

BL: 14T·m
Fs: 47Hz
Le: 3.36mH
Re: 5.4Ω
Sd: 531cm²
Cms: 0.21mm/N
Mms: 54g
Qes: 0.44
Qms: 4.2
Qts: 0.40
Rms: 3.77kg/s
SPL: 95.1dB
Vas: 84.6L
Xmax: 6mm
Power: 60W
Impedance: 8Ω
Sensitivity: 104dB
Low limit: 1000Hz
Power Program: 120
Calculated sensitivity †: 95.1dB
High limit: 20000Hz
Manufacturer sensitivity: 104dB
Voice coil: 45mm
Weight: 5.9kg
Diameter: 318mm
Depth: 168mm
Cutout: 286mm
Bolt circle: 304mm

Compare

Same-size drivers, compared with the FTX1225. Clear differences are green when better and red when worse.

This driverFTX1225

Best price

£239.00

47 Hz

Qts

0.40

Vas

84.6 L

14 T·m

Xmax

6 mm

Sensitivity

95.1 dB

Power

60 W

CelestionTF1220

£63.48 · 73% less

Fs56 Hz +18%

Qts0.39 –

Vas72.8 L −14%

BL13.9 T·m –

Xmax4 mm −33%

Sensitivity96.6 dB +1.5

PRV Audio12W750A

£63.52 · 73% less

Fs60 Hz +27%

Qts0.43 +9%

Vas81 L −4%

BL14.3 T·m –

Xmax3.6 mm −40%

Sensitivity98 dB +2.9

PRV Audio12W800A

£67.26 · 72% less

Fs50 Hz +5%

Qts0.47 +19%

Vas93.9 L +11%

BL12.7 T·m −9%

Xmax5.7 mm −5%

Sensitivity95.8 dB +0.7

CelestionK12H-100TC

£69.50 · 71% less

Fs56 Hz +18%

Qts0.40 –

Vas72.0 L −15%

BL13.6 T·m −3%

Xmax3 mm −50%

Sensitivity96.2 dB +1.1

PeerlessFSL-1225R02-08

£71.81 · 70% less

Fs63 Hz +33%

Qts0.44 +11%

Vas54.8 L −35%

BL14.9 T·m +6%

Xmax5.3 mm −12%

Sensitivity96.5 dB +1.4

FaneSOVEREIGN 12-300/2

£72.00 · 70% less

Fs47 Hz –

Qts0.40 –

Vas80 L −5%

BL15.6 T·m +11%

Xmax5 mm −17%

Sensitivity94.9 dB –

FaitalPRO12FE300

£76.11 · 68% less

Fs47 Hz –

Qts0.44 +11%

Vas81.4 L −4%

BL10.9 T·m −22%

Xmax5.5 mm −9%

Sensitivity94.8 dB –

CelestionTF1225

£83.50 · 65% less

Fs56 Hz +18%

Qts0.37 −7%

Vas67.3 L −20%

BL14.3 T·m –

Xmax4.5 mm −25%

Sensitivity96.4 dB +1.3

CIAREFXI12

£96.29 · 60% less

Fs55 Hz +16%

Qts0.44 +11%

Vas70 L −17%

BL13.9 T·m –

Xmax5 mm −17%

Sensitivity95.8 dB +0.7

EminenceDELTA-12A

£98.74 · 59% less

Fs55 Hz +16%

Qts0.43 +9%

Vas81.3 L −4%

BL13.5 T·m −4%

Xmax2.4 mm −60%

Sensitivity96.7 dB +1.6

Dayton AudioDCS305-4

£116.39 · 51% less

Fs24 Hz −49%

Qts0.40 –

Vas92.3 L +9%

BL13.7 T·m –

Xmax9.3 mm +55%

Sensitivity86.9 dB −8.2

PRV Audio12MB1000FT

£119.62 · 50% less

Fs53 Hz +11%

Qts0.37 −7%

Vas74.6 L −12%

BL16.5 T·m +18%

Xmax6.9 mm +15%

Sensitivity96.6 dB +1.5

FaitalPRO12PR310

£135.00 · 44% less

Fs54 Hz +14%

Qts0.40 –

Vas73.5 L −13%

BL14.4 T·m –

Xmax4.9 mm −18%

Sensitivity96.5 dB +1.4

FaitalPRO12PR300

£135.81 · 43% less

Fs50 Hz +6%

Qts0.36 −9%

Vas92.6 L +9%

BL14.1 T·m –

Xmax4.9 mm −18%

Sensitivity97 dB +1.9

CIARECMI320ND

£149.07 · 38% less

Fs53 Hz +12%

Qts0.43 +9%

Vas70 L −17%

BL10.6 T·m −24%

Xmax5 mm −17%

Sensitivity95.8 dB +0.7

Sica12 PF 3

£166.62 · 30% less

Fs47 Hz –

Qts0.39 –

Vas76.5 L −10%

BL15.4 T·m +10%

Xmax5.5 mm −8%

Sensitivity94.8 dB –

LavoceCSF122.50K

£168.20 · 30% less

Fs47 Hz –

Qts0.42 +6%

Vas89.8 L +6%

BL13.9 T·m –

Xmax6.3 mm +4%

Sensitivity95.2 dB –

FaitalPRO12HX230

£250.31 · 5% more

Fs55 Hz +16%

Qts0.43 +9%

Vas67.7 L −20%

BL14.1 T·m –

Xmax7.4 mm +23%

Sensitivity95.9 dB +0.8

Dayton AudioRSS315HF-4

£251.11 · 5% more

Fs24 Hz −49%

Qts0.39 –

Vas84.1 L –

BL14.0 T·m –

Xmax14.3 mm +138%

Sensitivity86.3 dB −8.8

LavoceCAF123.00T

£257.89 · 8% more

Fs53 Hz +12%

Qts0.36 −9%

Vas71.4 L −16%

BL15.2 T·m +9%

Xmax6 mm –

Sensitivity96.4 dB +1.3

LavoceCAF123.00TH

£268.19 · 12% more

Fs53 Hz +12%

Qts0.36 −9%

Vas71.4 L −16%

BL15.2 T·m +9%

Xmax6 mm –

Sensitivity96.4 dB +1.3

JensenBS12N250A-8

No current price

Fs47 Hz –

Qts0.43 +9%

Vas81.3 L −4%

BL14.4 T·m –

Xmax5.5 mm −8%

Sensitivity94.8 dB –

CelestionTF1230SL

No current price

Fs57 Hz +20%

Qts0.39 –

Vas53.8 L −36%

BL15.7 T·m +12%

Xmax6 mm –

Sensitivity95.6 dB +0.5

No photo

PHL Audio4511

No current price

Fs48 Hz –

Qts0.40 –

Vas74.1 L −12%

BL15.1 T·m +8%

Xmax7 mm +17%

Sensitivity94.6 dB −0.5

FaneCOLOSSUS 12MBN

No current price

Fs55 Hz +16%

Qts0.40 –

Vas56 L −34%

BL16.6 T·m +19%

Xmax5.5 mm −8%

Sensitivity95.3 dB –

REDCATT121XR

No current price

Fs46 Hz –

Qts0.33 −17%

Vas69.1 L −18%

BL16 T·m +14%

Xmax6.3 mm +6%

Sensitivity94.1 dB −1

CIAREHSB322

No current price

Fs35 Hz −26%

Qts0.42 +6%

Vas83 L –

BL12 T·m −14%

Xmax7.5 mm +25%

Sensitivity90.8 dB −4.3

Oberton12CX1

No current price

Fs58 Hz +22%

Qts0.37 −7%

Vas68.5 L −19%

BL13.9 T·m –

Xmax4.3 mm −29%

Sensitivity97.2 dB +2.1

Sica12 L1 2.5 SL

No current price

Fs48 Hz –

Qts0.36 −9%

Vas81.8 L −3%

BL14.2 T·m –

Xmax3.7 mm −38%

Sensitivity95.7 dB +0.6

PRV Audio12MR1000

No current price

Fs49 Hz +4%

Qts0.39 –

Vas92.3 L +9%

BL15.9 T·m +14%

Xmax3 mm −50%

Sensitivity96.5 dB +1.4

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
Lean Audio Checked 26 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£239.00, the lowest price		1 in stock	Visit shop at Lean Audio

Best price over time

Tracked since 1 Apr

bits00 AUDIO

12-inch LF driver · FTX1225 series · 45 mm voice coil · 60 W

Celestion FTX1225 8Ω

8 Ω · 1000–20000 Hz

£239.00

Steady

Lean Audio · 1 in stock · All 1 offer

Open in 00 Simulator

Fs: 47Hz
Xmax: 6mm
SPL: 95dB
Pe: 60W
BL: 14T·m
Vd: 319cm³
Qts: 0.40
Vas: 85L

See all 27 specs

Published graphs

Specifications

Published by Celestion

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 47Hz
Qts: 0.40
Qes: 0.44
Qms: 4.2
Vas: 84.6L
Re: 5.4Ω
Le: 3.36mH

Motor and cone

BL: 14T·m
Sd: 531cm²
Mms: 54g
Xmax: 6mm
Vd †: 319cm³
Voice coil: 45mm

Power and response

Sensitivity †: 95.1dB
Manufacturer sensitivity: 104dB
Power: 60W
Impedance: 8Ω
Range: 1000–20000Hz
EBP †: 108 · Leans vented

Size and mounting

Diameter: 318mm
Cutout: 286mm
Bolt circle: 304mm
Depth: 168mm
Weight: 5.9kg

Other published values

Cms: 0.21mm/N
Rms: 3.77kg/s
Power Program: 120

Sensitivity shows 95.1 dB, calculated from the T/S values. Celestion publishes 104.0 dB, 8.9 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 · Primary · 12″

BL: 14T·m
Fs: 47Hz
Le: 3.36mH
Re: 5.4Ω
Sd: 531cm²
Cms: 0.21mm/N
Mms: 54g
Qes: 0.44
Qms: 4.2
Qts: 0.40
Rms: 3.77kg/s
SPL: 95.1dB
Vas: 84.6L
Xmax: 6mm
Power: 60W
Impedance: 8Ω
Sensitivity: 104dB
Low limit: 1000Hz
Power Program: 120
Calculated sensitivity †: 95.1dB
High limit: 20000Hz
Manufacturer sensitivity: 104dB
Voice coil: 45mm
Weight: 5.9kg
Diameter: 318mm
Depth: 168mm
Cutout: 286mm
Bolt circle: 304mm

Compare

Same-size drivers, compared with the FTX1225. Clear differences are green when better and red when worse.

This driverFTX1225

Best price

£239.00

47 Hz

Qts

0.40

Vas

84.6 L

14 T·m

Xmax

6 mm

Sensitivity

95.1 dB

Power

60 W

CelestionTF1220

£63.48 · 73% less

Fs56 Hz +18%

Qts0.39 –

Vas72.8 L −14%

BL13.9 T·m –

Xmax4 mm −33%

Sensitivity96.6 dB +1.5

PRV Audio12W750A

£63.52 · 73% less

Fs60 Hz +27%

Qts0.43 +9%

Vas81 L −4%

BL14.3 T·m –

Xmax3.6 mm −40%

Sensitivity98 dB +2.9

PRV Audio12W800A

£67.26 · 72% less

Fs50 Hz +5%

Qts0.47 +19%

Vas93.9 L +11%

BL12.7 T·m −9%

Xmax5.7 mm −5%

Sensitivity95.8 dB +0.7

CelestionK12H-100TC

£69.50 · 71% less

Fs56 Hz +18%

Qts0.40 –

Vas72.0 L −15%

BL13.6 T·m −3%

Xmax3 mm −50%

Sensitivity96.2 dB +1.1

PeerlessFSL-1225R02-08

£71.81 · 70% less

Fs63 Hz +33%

Qts0.44 +11%

Vas54.8 L −35%

BL14.9 T·m +6%

Xmax5.3 mm −12%

Sensitivity96.5 dB +1.4

FaneSOVEREIGN 12-300/2

£72.00 · 70% less

Fs47 Hz –

Qts0.40 –

Vas80 L −5%

BL15.6 T·m +11%

Xmax5 mm −17%

Sensitivity94.9 dB –

FaitalPRO12FE300

£76.11 · 68% less

Fs47 Hz –

Qts0.44 +11%

Vas81.4 L −4%

BL10.9 T·m −22%

Xmax5.5 mm −9%

Sensitivity94.8 dB –

CelestionTF1225

£83.50 · 65% less

Fs56 Hz +18%

Qts0.37 −7%

Vas67.3 L −20%

BL14.3 T·m –

Xmax4.5 mm −25%

Sensitivity96.4 dB +1.3

CIAREFXI12

£96.29 · 60% less

Fs55 Hz +16%

Qts0.44 +11%

Vas70 L −17%

BL13.9 T·m –

Xmax5 mm −17%

Sensitivity95.8 dB +0.7

EminenceDELTA-12A

£98.74 · 59% less

Fs55 Hz +16%

Qts0.43 +9%

Vas81.3 L −4%

BL13.5 T·m −4%

Xmax2.4 mm −60%

Sensitivity96.7 dB +1.6

Dayton AudioDCS305-4

£116.39 · 51% less

Fs24 Hz −49%

Qts0.40 –

Vas92.3 L +9%

BL13.7 T·m –

Xmax9.3 mm +55%

Sensitivity86.9 dB −8.2

PRV Audio12MB1000FT

£119.62 · 50% less

Fs53 Hz +11%

Qts0.37 −7%

Vas74.6 L −12%

BL16.5 T·m +18%

Xmax6.9 mm +15%

Sensitivity96.6 dB +1.5

FaitalPRO12PR310

£135.00 · 44% less

Fs54 Hz +14%

Qts0.40 –

Vas73.5 L −13%

BL14.4 T·m –

Xmax4.9 mm −18%

Sensitivity96.5 dB +1.4

FaitalPRO12PR300

£135.81 · 43% less

Fs50 Hz +6%

Qts0.36 −9%

Vas92.6 L +9%

BL14.1 T·m –

Xmax4.9 mm −18%

Sensitivity97 dB +1.9

CIARECMI320ND

£149.07 · 38% less

Fs53 Hz +12%

Qts0.43 +9%

Vas70 L −17%

BL10.6 T·m −24%

Xmax5 mm −17%

Sensitivity95.8 dB +0.7

Sica12 PF 3

£166.62 · 30% less

Fs47 Hz –

Qts0.39 –

Vas76.5 L −10%

BL15.4 T·m +10%

Xmax5.5 mm −8%

Sensitivity94.8 dB –

LavoceCSF122.50K

£168.20 · 30% less

Fs47 Hz –

Qts0.42 +6%

Vas89.8 L +6%

BL13.9 T·m –

Xmax6.3 mm +4%

Sensitivity95.2 dB –

FaitalPRO12HX230

£250.31 · 5% more

Fs55 Hz +16%

Qts0.43 +9%

Vas67.7 L −20%

BL14.1 T·m –

Xmax7.4 mm +23%

Sensitivity95.9 dB +0.8

Dayton AudioRSS315HF-4

£251.11 · 5% more

Fs24 Hz −49%

Qts0.39 –

Vas84.1 L –

BL14.0 T·m –

Xmax14.3 mm +138%

Sensitivity86.3 dB −8.8

LavoceCAF123.00T

£257.89 · 8% more

Fs53 Hz +12%

Qts0.36 −9%

Vas71.4 L −16%

BL15.2 T·m +9%

Xmax6 mm –

Sensitivity96.4 dB +1.3

LavoceCAF123.00TH

£268.19 · 12% more

Fs53 Hz +12%

Qts0.36 −9%

Vas71.4 L −16%

BL15.2 T·m +9%

Xmax6 mm –

Sensitivity96.4 dB +1.3

JensenBS12N250A-8

No current price

Fs47 Hz –

Qts0.43 +9%

Vas81.3 L −4%

BL14.4 T·m –

Xmax5.5 mm −8%

Sensitivity94.8 dB –

CelestionTF1230SL

No current price

Fs57 Hz +20%

Qts0.39 –

Vas53.8 L −36%

BL15.7 T·m +12%

Xmax6 mm –

Sensitivity95.6 dB +0.5

No photo

PHL Audio4511

No current price

Fs48 Hz –

Qts0.40 –

Vas74.1 L −12%

BL15.1 T·m +8%

Xmax7 mm +17%

Sensitivity94.6 dB −0.5

FaneCOLOSSUS 12MBN

No current price

Fs55 Hz +16%

Qts0.40 –

Vas56 L −34%

BL16.6 T·m +19%

Xmax5.5 mm −8%

Sensitivity95.3 dB –

REDCATT121XR

No current price

Fs46 Hz –

Qts0.33 −17%

Vas69.1 L −18%

BL16 T·m +14%

Xmax6.3 mm +6%

Sensitivity94.1 dB −1

CIAREHSB322

No current price

Fs35 Hz −26%

Qts0.42 +6%

Vas83 L –

BL12 T·m −14%

Xmax7.5 mm +25%

Sensitivity90.8 dB −4.3

Oberton12CX1

No current price

Fs58 Hz +22%

Qts0.37 −7%

Vas68.5 L −19%

BL13.9 T·m –

Xmax4.3 mm −29%

Sensitivity97.2 dB +2.1

Sica12 L1 2.5 SL

No current price

Fs48 Hz –

Qts0.36 −9%

Vas81.8 L −3%

BL14.2 T·m –

Xmax3.7 mm −38%

Sensitivity95.7 dB +0.6

PRV Audio12MR1000

No current price

Fs49 Hz +4%

Qts0.39 –

Vas92.3 L +9%

BL15.9 T·m +14%

Xmax3 mm −50%

Sensitivity96.5 dB +1.4

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
Lean Audio Checked 26 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£239.00, the lowest price		1 in stock	Visit shop at Lean Audio

Best price over time

Tracked since 1 Apr