8-inch LF driver · FTX0820 series · 34 mm voice coil · 40 W

Celestion FTX0820 8Ω

Name: Celestion FTX0820 8 Ohm
Brand: Celestion
SKU: FTX0820
Availability: InStock

8 Ω · 1500–20000 Hz

£139.00

Steady

Lean Audio · 2 in stock · All 2 offers

Open in 00 Simulator

Fs: 79Hz
Xmax: 4mm
SPL: 95dB
Pe: 40W
BL: 14.6T·m
Vd: 91cm³
Qts: 0.28
Vas: 13L

See all 27 specs

Published graphs

Specifications

Published by Celestion

Manufacturer page

Datasheet PDF

Celestion FTX0820 is an 8-inch 8 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 79 Hz, Qts 0.28, Vas 13.1 L, Xmax 4 mm, sensitivity 95.2 dB, plus 91 cm³ Vd and 254 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 £139.00.

The published T/S values agree with each other

Thiele/Small

Fs: 79Hz
Qts: 0.28
Qes: 0.31
Qms: 2.8
Vas: 13.1L
Re: 5.8Ω
Le: 0.62mH

Motor and cone

BL: 14.6T·m
Sd: 227cm²
Mms: 23g
Xmax: 4mm
Vd †: 91cm³
Voice coil: 34mm

Power and response

Sensitivity †: 95.2dB
Manufacturer sensitivity: 103dB
Power: 40W
Impedance: 8Ω
Range: 1500–20000Hz
EBP †: 254 · Leans vented

Size and mounting

Diameter: 225mm
Cutout: 187mm
Bolt circle: 210mm
Depth: 123mm
Weight: 4.1kg

Other published values

Cms: 0.18mm/N
Rms: 4.01kg/s
Power Program: 80

Sensitivity shows 95.2 dB, calculated from the T/S values. Celestion publishes 103.0 dB, 7.8 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 · Primary · 8″

BL: 14.6T·m
Fs: 79Hz
Le: 0.62mH
Re: 5.8Ω
Sd: 227cm²
Cms: 0.18mm/N
Mms: 23g
Qes: 0.31
Qms: 2.8
Qts: 0.28
Rms: 4.01kg/s
SPL: 95.2dB
Vas: 13.1L
Xmax: 4mm
Power: 40W
Impedance: 8Ω
Sensitivity: 103dB
Low limit: 1500Hz
Power Program: 80
Calculated sensitivity †: 95.2dB
High limit: 20000Hz
Manufacturer sensitivity: 103dB
Voice coil: 34mm
Weight: 4.1kg
Diameter: 225mm
Depth: 123mm
Cutout: 187mm
Bolt circle: 210mm

Compare

Same-size drivers, compared with the FTX0820. Clear differences are green when better and red when worse.

This driverFTX0820

Best price

£139.00

79 Hz

Qts

0.28

Vas

13.1 L

14.6 T·m

Xmax

4 mm

Sensitivity

95.2 dB

Power

40 W

CIAREFXI8

£67.65 · 51% less

Fs81 Hz –

Qts0.29 +4%

Vas13 L –

BL13.3 T·m −9%

Xmax4.5 mm +13%

Sensitivity95.4 dB –

Beyma8WRS300

£75.41 · 46% less

Fs65 Hz −18%

Qts0.28 –

Vas15 L +14%

BL15.2 T·m +4%

Xmax6 mm +50%

Sensitivity93.4 dB −1.8

Sica8 FE 2.5 CP

£82.89 · 40% less

Fs73 Hz −7%

Qts0.28 –

Vas15.6 L +19%

BL13.0 T·m −11%

Xmax4 mm –

Sensitivity95.1 dB –

Beyma8WR300

£90.05 · 35% less

Fs65 Hz −18%

Qts0.27 −3%

Vas15 L +14%

BL15.5 T·m +6%

Xmax6 mm +50%

Sensitivity93.6 dB −1.6

Sica8 C 2 CP

£92.02 · 34% less

Fs79 Hz –

Qts0.30 +8%

Vas14.7 L +12%

BL13.5 T·m −7%

Xmax3.5 mm −13%

Sensitivity95.5 dB –

FaitalPRO8PR210

£100.24 · 28% less

Fs65 Hz −18%

Qts0.29 +4%

Vas15.4 L +17%

BL13.5 T·m −7%

Xmax6.9 mm +73%

Sensitivity93.2 dB −2

CIARENDI8

£103.24 · 26% less

Fs81 Hz –

Qts0.33 +18%

Vas13 L –

BL12.8 T·m −12%

Xmax4.5 mm +13%

Sensitivity94.9 dB –

Eighteen Sound8M400F

£114.19 · 18% less

Fs89 Hz +13%

Qts0.26 −7%

Vas13.7 L +4%

BL13.1 T·m −10%

Xmax3 mm −25%

Sensitivity97.4 dB +2.2

B&C8FG64

£120.57 · 13% less

Fs51 Hz −35%

Qts0.31 +11%

Vas15 L +14%

BL15.8 T·m +9%

Xmax7 mm +75%

Sensitivity90 dB −5.2

Sica8 N 2.5 PL

£124.76 · 10% less

Fs77 Hz –

Qts0.30 +8%

Vas13.7 L +4%

BL12.9 T·m −11%

Xmax3.5 mm −13%

Sensitivity94.8 dB –

PRV Audio8MB700FT-NDY

£127.10 · 9% less

Fs70 Hz −11%

Qts0.30 +8%

Vas18.8 L +43%

BL12.8 T·m −12%

Xmax3.6 mm −9%

Sensitivity94.9 dB –

BMS8S215

£137.66 · Same price

Fs88 Hz +11%

Qts0.31 +11%

Vas11.0 L −16%

BL13.6 T·m −7%

Xmax4.3 mm +6%

Sensitivity95.6 dB –

RCFMB8N251

£149.04 · 7% more

Fs68 Hz −14%

Qts0.25 −10%

Vas13 L –

BL15.2 T·m +4%

Xmax5 mm +25%

Sensitivity94 dB −1.2

Sica8 K 3 PL

£158.25 · 14% more

Fs68 Hz −14%

Qts0.25 −10%

Vas12.2 L −7%

BL16.1 T·m +11%

Xmax5 mm +25%

Sensitivity93.6 dB −1.6

BMS8N515

£171.89 · 24% more

Fs88 Hz +11%

Qts0.30 +8%

Vas11.0 L −16%

BL13.8 T·m −5%

Xmax4 mm –

Sensitivity95.7 dB +0.5

FaitalPRO8HX200

£225.24 · 62% more

Fs76 Hz −4%

Qts0.30 +8%

Vas13.1 L –

BL13.8 T·m −5%

Xmax4.9 mm +23%

Sensitivity94.7 dB −0.5

FaitalPRO8HX230

£233.61 · 68% more

Fs70 Hz −11%

Qts0.29 +4%

Vas14.7 L +12%

BL15 T·m +3%

Xmax6.2 mm +54%

Sensitivity94.1 dB −1.1

BMS8CN552

£262.59 · 89% more

Fs88 Hz +11%

Qts0.29 +4%

Vas10.1 L −23%

BL13.4 T·m −8%

Xmax4 mm –

Sensitivity95.6 dB –

FaitalPRO8HX240

£278.82 · 101% more

Fs70 Hz −11%

Qts0.30 +8%

Vas12.9 L –

BL13.8 T·m −5%

Xmax6.2 mm +54%

Sensitivity93.6 dB −1.6

PRV Audio8MR600X-NDY

No current price

Fs88 Hz +11%

Qts0.29 +4%

Vas12.6 L −4%

BL15.2 T·m +4%

Xmax3.8 mm −6%

Sensitivity96.5 dB +1.3

REDCATT8NPM

No current price

Fs79 Hz –

Qts0.29 +4%

Vas10.9 L −17%

BL14.2 T·m –

Xmax3.7 mm −7%

Sensitivity94.4 dB −0.8

Oberton8NMB250V4

No current price

Fs82 Hz +4%

Qts0.26 −8%

Vas10.9 L −17%

BL14.3 T·m –

Xmax4.5 mm +13%

Sensitivity95.5 dB –

REDCATT81NPM-2

No current price

Fs69 Hz −12%

Qts0.28 –

Vas10.3 L −22%

BL19.3 T·m +33%

Xmax4.0 mm –

Sensitivity92.7 dB −2.5

Dayton Audio8MB200N-8

No current price

Fs94 Hz +19%

Qts0.32 +15%

Vas8.8 L −33%

BL14.4 T·m –

Xmax3.9 mm –

Sensitivity95.2 dB –

P.Audio8NX-65MB

No current price

Fs80 Hz –

Qts0.29 +4%

Vas8.2 L −38%

BL18 T·m +24%

Xmax3.8 mm −6%

Sensitivity93.3 dB −1.9

LavoceCAN082.00K

No current price

Fs72 Hz −9%

Qts0.27 −3%

Vas15.1 L +15%

BL13.2 T·m −10%

Xmax6.7 mm +68%

Sensitivity94.8 dB –

Sica8 CX 2.5 PL P

No current price

Fs74 Hz −6%

Qts0.28 –

Vas16.2 L +23%

BL12.3 T·m −15%

Xmax5 mm +25%

Sensitivity95.1 dB –

Acoustic EleganceTD8M-8

No current price

Fs76 Hz −4%

Qts0.26 −7%

Vas11.3 L −14%

BL15.5 T·m +6%

Xmax3 mm −25%

Sensitivity94.6 dB −0.6

No photo

PHL Audio2440

No current price

Fs77 Hz –

Qts0.31 +11%

Vas13.1 L –

BL12.8 T·m −12%

Xmax5 mm +25%

Sensitivity94.5 dB −0.7

Oberton8NB201

No current price

Fs71 Hz −10%

Qts0.24 −12%

Vas12.5 L −4%

BL14.4 T·m –

Xmax5.3 mm +31%

Sensitivity94.4 dB −0.8

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%	£139.00, the lowest price		2 in stock	Visit shop at Lean Audio
Lean Business Checked 15 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£139.00		Stock not listed	Visit shop at Lean Business

Best price over time

Tracked since 1 Apr

bits00 AUDIO

8-inch LF driver · FTX0820 series · 34 mm voice coil · 40 W

Celestion FTX0820 8Ω

8 Ω · 1500–20000 Hz

£139.00

Steady

Lean Audio · 2 in stock · All 2 offers

Open in 00 Simulator

Fs: 79Hz
Xmax: 4mm
SPL: 95dB
Pe: 40W
BL: 14.6T·m
Vd: 91cm³
Qts: 0.28
Vas: 13L

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: 79Hz
Qts: 0.28
Qes: 0.31
Qms: 2.8
Vas: 13.1L
Re: 5.8Ω
Le: 0.62mH

Motor and cone

BL: 14.6T·m
Sd: 227cm²
Mms: 23g
Xmax: 4mm
Vd †: 91cm³
Voice coil: 34mm

Power and response

Sensitivity †: 95.2dB
Manufacturer sensitivity: 103dB
Power: 40W
Impedance: 8Ω
Range: 1500–20000Hz
EBP †: 254 · Leans vented

Size and mounting

Diameter: 225mm
Cutout: 187mm
Bolt circle: 210mm
Depth: 123mm
Weight: 4.1kg

Other published values

Cms: 0.18mm/N
Rms: 4.01kg/s
Power Program: 80

Sensitivity shows 95.2 dB, calculated from the T/S values. Celestion publishes 103.0 dB, 7.8 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 · Primary · 8″

BL: 14.6T·m
Fs: 79Hz
Le: 0.62mH
Re: 5.8Ω
Sd: 227cm²
Cms: 0.18mm/N
Mms: 23g
Qes: 0.31
Qms: 2.8
Qts: 0.28
Rms: 4.01kg/s
SPL: 95.2dB
Vas: 13.1L
Xmax: 4mm
Power: 40W
Impedance: 8Ω
Sensitivity: 103dB
Low limit: 1500Hz
Power Program: 80
Calculated sensitivity †: 95.2dB
High limit: 20000Hz
Manufacturer sensitivity: 103dB
Voice coil: 34mm
Weight: 4.1kg
Diameter: 225mm
Depth: 123mm
Cutout: 187mm
Bolt circle: 210mm

Compare

Same-size drivers, compared with the FTX0820. Clear differences are green when better and red when worse.

This driverFTX0820

Best price

£139.00

79 Hz

Qts

0.28

Vas

13.1 L

14.6 T·m

Xmax

4 mm

Sensitivity

95.2 dB

Power

40 W

CIAREFXI8

£67.65 · 51% less

Fs81 Hz –

Qts0.29 +4%

Vas13 L –

BL13.3 T·m −9%

Xmax4.5 mm +13%

Sensitivity95.4 dB –

Beyma8WRS300

£75.41 · 46% less

Fs65 Hz −18%

Qts0.28 –

Vas15 L +14%

BL15.2 T·m +4%

Xmax6 mm +50%

Sensitivity93.4 dB −1.8

Sica8 FE 2.5 CP

£82.89 · 40% less

Fs73 Hz −7%

Qts0.28 –

Vas15.6 L +19%

BL13.0 T·m −11%

Xmax4 mm –

Sensitivity95.1 dB –

Beyma8WR300

£90.05 · 35% less

Fs65 Hz −18%

Qts0.27 −3%

Vas15 L +14%

BL15.5 T·m +6%

Xmax6 mm +50%

Sensitivity93.6 dB −1.6

Sica8 C 2 CP

£92.02 · 34% less

Fs79 Hz –

Qts0.30 +8%

Vas14.7 L +12%

BL13.5 T·m −7%

Xmax3.5 mm −13%

Sensitivity95.5 dB –

FaitalPRO8PR210

£100.24 · 28% less

Fs65 Hz −18%

Qts0.29 +4%

Vas15.4 L +17%

BL13.5 T·m −7%

Xmax6.9 mm +73%

Sensitivity93.2 dB −2

CIARENDI8

£103.24 · 26% less

Fs81 Hz –

Qts0.33 +18%

Vas13 L –

BL12.8 T·m −12%

Xmax4.5 mm +13%

Sensitivity94.9 dB –

Eighteen Sound8M400F

£114.19 · 18% less

Fs89 Hz +13%

Qts0.26 −7%

Vas13.7 L +4%

BL13.1 T·m −10%

Xmax3 mm −25%

Sensitivity97.4 dB +2.2

B&C8FG64

£120.57 · 13% less

Fs51 Hz −35%

Qts0.31 +11%

Vas15 L +14%

BL15.8 T·m +9%

Xmax7 mm +75%

Sensitivity90 dB −5.2

Sica8 N 2.5 PL

£124.76 · 10% less

Fs77 Hz –

Qts0.30 +8%

Vas13.7 L +4%

BL12.9 T·m −11%

Xmax3.5 mm −13%

Sensitivity94.8 dB –

PRV Audio8MB700FT-NDY

£127.10 · 9% less

Fs70 Hz −11%

Qts0.30 +8%

Vas18.8 L +43%

BL12.8 T·m −12%

Xmax3.6 mm −9%

Sensitivity94.9 dB –

BMS8S215

£137.66 · Same price

Fs88 Hz +11%

Qts0.31 +11%

Vas11.0 L −16%

BL13.6 T·m −7%

Xmax4.3 mm +6%

Sensitivity95.6 dB –

RCFMB8N251

£149.04 · 7% more

Fs68 Hz −14%

Qts0.25 −10%

Vas13 L –

BL15.2 T·m +4%

Xmax5 mm +25%

Sensitivity94 dB −1.2

Sica8 K 3 PL

£158.25 · 14% more

Fs68 Hz −14%

Qts0.25 −10%

Vas12.2 L −7%

BL16.1 T·m +11%

Xmax5 mm +25%

Sensitivity93.6 dB −1.6

BMS8N515

£171.89 · 24% more

Fs88 Hz +11%

Qts0.30 +8%

Vas11.0 L −16%

BL13.8 T·m −5%

Xmax4 mm –

Sensitivity95.7 dB +0.5

FaitalPRO8HX200

£225.24 · 62% more

Fs76 Hz −4%

Qts0.30 +8%

Vas13.1 L –

BL13.8 T·m −5%

Xmax4.9 mm +23%

Sensitivity94.7 dB −0.5

FaitalPRO8HX230

£233.61 · 68% more

Fs70 Hz −11%

Qts0.29 +4%

Vas14.7 L +12%

BL15 T·m +3%

Xmax6.2 mm +54%

Sensitivity94.1 dB −1.1

BMS8CN552

£262.59 · 89% more

Fs88 Hz +11%

Qts0.29 +4%

Vas10.1 L −23%

BL13.4 T·m −8%

Xmax4 mm –

Sensitivity95.6 dB –

FaitalPRO8HX240

£278.82 · 101% more

Fs70 Hz −11%

Qts0.30 +8%

Vas12.9 L –

BL13.8 T·m −5%

Xmax6.2 mm +54%

Sensitivity93.6 dB −1.6

PRV Audio8MR600X-NDY

No current price

Fs88 Hz +11%

Qts0.29 +4%

Vas12.6 L −4%

BL15.2 T·m +4%

Xmax3.8 mm −6%

Sensitivity96.5 dB +1.3

REDCATT8NPM

No current price

Fs79 Hz –

Qts0.29 +4%

Vas10.9 L −17%

BL14.2 T·m –

Xmax3.7 mm −7%

Sensitivity94.4 dB −0.8

Oberton8NMB250V4

No current price

Fs82 Hz +4%

Qts0.26 −8%

Vas10.9 L −17%

BL14.3 T·m –

Xmax4.5 mm +13%

Sensitivity95.5 dB –

REDCATT81NPM-2

No current price

Fs69 Hz −12%

Qts0.28 –

Vas10.3 L −22%

BL19.3 T·m +33%

Xmax4.0 mm –

Sensitivity92.7 dB −2.5

Dayton Audio8MB200N-8

No current price

Fs94 Hz +19%

Qts0.32 +15%

Vas8.8 L −33%

BL14.4 T·m –

Xmax3.9 mm –

Sensitivity95.2 dB –

P.Audio8NX-65MB

No current price

Fs80 Hz –

Qts0.29 +4%

Vas8.2 L −38%

BL18 T·m +24%

Xmax3.8 mm −6%

Sensitivity93.3 dB −1.9

LavoceCAN082.00K

No current price

Fs72 Hz −9%

Qts0.27 −3%

Vas15.1 L +15%

BL13.2 T·m −10%

Xmax6.7 mm +68%

Sensitivity94.8 dB –

Sica8 CX 2.5 PL P

No current price

Fs74 Hz −6%

Qts0.28 –

Vas16.2 L +23%

BL12.3 T·m −15%

Xmax5 mm +25%

Sensitivity95.1 dB –

Acoustic EleganceTD8M-8

No current price

Fs76 Hz −4%

Qts0.26 −7%

Vas11.3 L −14%

BL15.5 T·m +6%

Xmax3 mm −25%

Sensitivity94.6 dB −0.6

No photo

PHL Audio2440

No current price

Fs77 Hz –

Qts0.31 +11%

Vas13.1 L –

BL12.8 T·m −12%

Xmax5 mm +25%

Sensitivity94.5 dB −0.7

Oberton8NB201

No current price

Fs71 Hz −10%

Qts0.24 −12%

Vas12.5 L −4%

BL14.4 T·m –

Xmax5.3 mm +31%

Sensitivity94.4 dB −0.8

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%	£139.00, the lowest price		2 in stock	Visit shop at Lean Audio
Lean Business Checked 15 Oct 2026 · 8 Ω · Source: inc VAT · 20%	£139.00		Stock not listed	Visit shop at Lean Business

Best price over time

Tracked since 1 Apr