6.5-inch LF driver · 38 mm voice coil · 120 W

Sica 6.5 H 1.5 CP 8Ω

Name: Sica 6.5 H 1.5 CP 8 Ohm
Brand: Sica
SKU: 6.5 H 1.5 CP
Availability: InStock

8 Ω

£89.39

SoundImports · 4 in stock · Ships from Netherlands · All 2 offers

Open in 00 Simulator

Fs: 45Hz
Xmax: 6mm
SPL: 88dB
Pe: 120W
BL: 7.0T·m
Vd: 74cm³
Qts: 0.42
Vas: 20L

See all 26 specs

Specifications

Published by Sica

Manufacturer page

Datasheet PDF

Sica 6.5 H 1.5 CP is a 6.5-inch 8 ohm LF driver rated at 120 W RMS. The validated T/S data includes Fs 45 Hz, Qts 0.42, Vas 20.2 L, Xmax 6 mm, sensitivity 88.2 dB, plus 74 cm³ Vd and 99 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 £55.91.

The published T/S values agree with each other

Thiele/Small

Fs: 45Hz
Qts: 0.42
Qes: 0.46
Qms: 5.2
Vas: 20.2L
Re: 6.1Ω
Le: 0.48mH

Motor and cone

BL: 7.0T·m
Sd: 123cm²
Mms: 13g
Xmax: 6mm
Vd †: 74cm³
Voice coil: 38mm
Flux density: 0.90T

Power and response

Sensitivity †: 88.2dB
Manufacturer sensitivity: 89.4dB
Power: 120W
Impedance: 8Ω
EBP †: 99 · Sealed or vented

Size and mounting

Diameter: 175mm
Cutout: 143mm
Bolt circle: 164.2mm
Depth: 77.5mm
Weight: 1.6kg

Other published values

Cms: 0.94mm/N
Power Program: 240

Sensitivity shows 88.2 dB, calculated from the T/S values. Sica publishes 89.4 dB, 1.2 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Sica lists

LF · Primary · 6.5″

BL: 7.0T·m
Fs: 45Hz
Le: 0.48mH
Re: 6.1Ω
Sd: 123cm²
Cms: 0.94mm/N
Mms: 13g
Qes: 0.46
Qms: 5.2
Qts: 0.42
SPL: 88.2dB
Vas: 20.2L
Xmax: 6mm
Power: 120W
Impedance: 8Ω
Flux density: 0.90T
Sensitivity: 89.4dB
Power Program: 240
Calculated sensitivity †: 88.2dB
Manufacturer sensitivity: 89.4dB
Voice coil: 38mm
Weight: 1.6kg
Diameter: 175mm
Depth: 77.5mm
Cutout: 143mm
Bolt circle: 164.2mm

Compare

Same-size drivers, compared with the 6.5 H 1.5 CP. Clear differences are green when better and red when worse.

This driver6.5 H 1.5 CP

Best price

£55.91

45 Hz

Qts

0.42

Vas

20.2 L

7.0 T·m

Xmax

6 mm

Sensitivity

88.2 dB

Power

120 W

Dayton AudioGF180-4

£18.63 · 67% less

Fs49 Hz +8%

Qts0.42 –

Vas16.5 L −18%

BL6.5 T·m −7%

Xmax4 mm −33%

Sensitivity88.1 dB –

PeerlessSDS-P830657

£25.03 · 55% less

Fs48 Hz +6%

Qts0.47 +12%

Vas20.1 L –

BL6.9 T·m –

Xmax5.5 mm −9%

Sensitivity88 dB –

PeerlessHDS-P835025

£36.89 · 34% less

Fs43 Hz −5%

Qts0.42 –

Vas19 L −6%

BL8.6 T·m +23%

Xmax7.4 mm +23%

Sensitivity87.1 dB −1.1

Dayton AudioDC160-4

£37.53 · 33% less

Fs39 Hz −14%

Qts0.43 –

Vas15 L −26%

BL7.0 T·m –

Xmax3.4 mm −43%

Sensitivity84.6 dB −3.6

Dayton AudioSIG180-4

£40.97 · 27% less

Fs41 Hz −11%

Qts0.38 −10%

Vas23.2 L +15%

BL6.6 T·m −6%

Xmax5 mm −17%

Sensitivity87.8 dB –

CIAREHW161N

£43.46 · 22% less

Fs47 Hz +4%

Qts0.37 −12%

Vas19.9 L –

BL7.4 T·m +6%

Xmax5 mm −17%

Sensitivity88.6 dB –

SB AcousticsSB17NRX2C35-8

£55.41 · Same price

Fs37 Hz −20%

Qts0.42 –

Vas27 L +34%

BL6.3 T·m −11%

Xmax5.5 mm −8%

Sensitivity86.5 dB −1.7

Scanspeak18W/8434G00

£57.57 · 3% more

Fs50 Hz +10%

Qts0.43 –

Vas19.5 L −3%

BL7.2 T·m –

Xmax4.2 mm −30%

Sensitivity89.3 dB +1.1

CIAREHW172

£62.68 · 12% more

Fs46 Hz –

Qts0.37 −12%

Vas20 L –

BL7.6 T·m +8%

Xmax4.5 mm −25%

Sensitivity88.4 dB –

SB AcousticsSB17NAC35-8

£70.62 · 26% more

Fs32 Hz −31%

Qts0.42 –

Vas33 L +63%

BL6.2 T·m −12%

Xmax5.5 mm −8%

Sensitivity85.6 dB −2.6

Dayton AudioRS180P-8

£70.96 · 27% more

Fs46 Hz –

Qts0.34 −19%

Vas22 L +9%

BL7.2 T·m –

Xmax6 mm –

Sensitivity88.8 dB +0.6

Dayton AudioRS180S-8

£78.48 · 40% more

Fs38 Hz −17%

Qts0.36 −14%

Vas23 L +14%

BL7.3 T·m +4%

Xmax6 mm –

Sensitivity86 dB −2.2

SEASH1571-08 U18RNX/P

£143.75 · 157% more

Fs43 Hz −5%

Qts0.37 −12%

Vas22 L +9%

BL6.9 T·m –

Xmax6 mm –

Sensitivity87.9 dB –

RS SpeakersMW 174.38 FIBONACCI

£145.42 · 160% more

Fs46 Hz –

Qts0.39 −7%

Vas18.7 L −7%

BL7.0 T·m –

Xmax4.5 mm −25%

Sensitivity88.3 dB –

Scanspeak15W/8531K00

£150.70 · 170% more

Fs39 Hz −14%

Qts0.38 −10%

Vas16.7 L −17%

BL6.6 T·m −6%

Xmax6.5 mm +8%

Sensitivity85.8 dB −2.4

Scanspeak15W/8530K00

£157.03 · 181% more

Fs39 Hz −14%

Qts0.39 −7%

Vas16 L −21%

BL6.6 T·m −6%

Xmax6.5 mm +8%

Sensitivity85.5 dB −2.7

Scanspeak18W/8542-10

£157.04 · 181% more

Fs43 Hz −5%

Qts0.35 −17%

Vas26 L +29%

BL6.9 T·m –

Xmax6.5 mm +8%

Sensitivity88.7 dB +0.5

WavecorSW182BD03

£160.89 · 188% more

Fs35 Hz −23%

Qts0.44 +5%

Vas12.7 L −37%

BL7.6 T·m +8%

Xmax7 mm +17%

Sensitivity82.9 dB −5.3

SEASE0076-08 W19NX001

£585.00 · 946% more

Fs34 Hz −25%

Qts0.41 –

Vas24 L +19%

BL8.3 T·m +18%

Xmax7 mm +17%

Sensitivity85.2 dB −3

AccutonC168-6-890

£919.31 · 1544% more

Fs41 Hz −10%

Qts0.44 +5%

Vas15 L −26%

BL7.5 T·m +7%

Xmax5 mm −17%

Sensitivity85.3 dB −2.9

HiViS6.5

No current price

Fs47 Hz +4%

Qts0.42 –

Vas18.4 L −9%

BL6.4 T·m −9%

Xmax5.8 mm −3%

Sensitivity88.1 dB –

HiViSS6.5R

No current price

Fs42 Hz −7%

Qts0.39 −7%

Vas21.6 L +7%

BL6.5 T·m −7%

Xmax5.8 mm −3%

Sensitivity87.7 dB −0.5

RS SpeakersW 174.38 FIBONACCI

No current price

Fs38 Hz −17%

Qts0.38 −10%

Vas22.9 L +13%

BL7.2 T·m +3%

Xmax6 mm –

Sensitivity87 dB −1.2

HiViSS6.5

No current price

Fs42 Hz −7%

Qts0.39 −7%

Vas24.8 L +23%

BL6.4 T·m −9%

Xmax5.8 mm −3%

Sensitivity88.1 dB –

HiViS6.5R

No current price

Fs41 Hz −10%

Qts0.38 −10%

Vas23.2 L +15%

BL6.5 T·m −7%

Xmax5.8 mm −3%

Sensitivity87.8 dB –

HiViF6N

No current price

Fs48 Hz +6%

Qts0.43 –

Vas19.1 L −5%

BL7.3 T·m +4%

Xmax4.5 mm −25%

Sensitivity88.7 dB +0.5

WavecorWF182BD11

No current price

Fs34 Hz −25%

Qts0.42 –

Vas24.3 L +20%

BL8.2 T·m +17%

Xmax5.5 mm −8%

Sensitivity85.4 dB −2.8

WavecorWF182BD19

No current price

Fs34 Hz −25%

Qts0.42 –

Vas24.3 L +20%

BL8.2 T·m +17%

Xmax5.5 mm −8%

Sensitivity85.4 dB −2.8

CelestionNTR06-1705D

No current price

Fs49 Hz +8%

Qts0.38 −10%

Vas21.4 L +6%

BL8.2 T·m +16%

Xmax6 mm –

Sensitivity90 dB +1.8

HiViE6.5N

No current price

Fs43 Hz −5%

Qts0.40 −5%

Vas21 L +4%

BL7.1 T·m –

Xmax4.3 mm −29%

Sensitivity87.2 dB −1

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
SoundImports Checked 4 Nov 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£89.39, the lowest price		4 in stock	Visit shop at SoundImports

Best price over time

Tracked since 4 Nov

bits00 AUDIO

6.5-inch LF driver · 38 mm voice coil · 120 W

Sica 6.5 H 1.5 CP 8Ω

8 Ω

£89.39

SoundImports · 4 in stock · Ships from Netherlands · All 2 offers

Open in 00 Simulator

Fs: 45Hz
Xmax: 6mm
SPL: 88dB
Pe: 120W
BL: 7.0T·m
Vd: 74cm³
Qts: 0.42
Vas: 20L

See all 26 specs

Specifications

Published by Sica

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 45Hz
Qts: 0.42
Qes: 0.46
Qms: 5.2
Vas: 20.2L
Re: 6.1Ω
Le: 0.48mH

Motor and cone

BL: 7.0T·m
Sd: 123cm²
Mms: 13g
Xmax: 6mm
Vd †: 74cm³
Voice coil: 38mm
Flux density: 0.90T

Power and response

Sensitivity †: 88.2dB
Manufacturer sensitivity: 89.4dB
Power: 120W
Impedance: 8Ω
EBP †: 99 · Sealed or vented

Size and mounting

Diameter: 175mm
Cutout: 143mm
Bolt circle: 164.2mm
Depth: 77.5mm
Weight: 1.6kg

Other published values

Cms: 0.94mm/N
Power Program: 240

Sensitivity shows 88.2 dB, calculated from the T/S values. Sica publishes 89.4 dB, 1.2 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Sica lists

LF · Primary · 6.5″

BL: 7.0T·m
Fs: 45Hz
Le: 0.48mH
Re: 6.1Ω
Sd: 123cm²
Cms: 0.94mm/N
Mms: 13g
Qes: 0.46
Qms: 5.2
Qts: 0.42
SPL: 88.2dB
Vas: 20.2L
Xmax: 6mm
Power: 120W
Impedance: 8Ω
Flux density: 0.90T
Sensitivity: 89.4dB
Power Program: 240
Calculated sensitivity †: 88.2dB
Manufacturer sensitivity: 89.4dB
Voice coil: 38mm
Weight: 1.6kg
Diameter: 175mm
Depth: 77.5mm
Cutout: 143mm
Bolt circle: 164.2mm

Compare

Same-size drivers, compared with the 6.5 H 1.5 CP. Clear differences are green when better and red when worse.

This driver6.5 H 1.5 CP

Best price

£55.91

45 Hz

Qts

0.42

Vas

20.2 L

7.0 T·m

Xmax

6 mm

Sensitivity

88.2 dB

Power

120 W

Dayton AudioGF180-4

£18.63 · 67% less

Fs49 Hz +8%

Qts0.42 –

Vas16.5 L −18%

BL6.5 T·m −7%

Xmax4 mm −33%

Sensitivity88.1 dB –

PeerlessSDS-P830657

£25.03 · 55% less

Fs48 Hz +6%

Qts0.47 +12%

Vas20.1 L –

BL6.9 T·m –

Xmax5.5 mm −9%

Sensitivity88 dB –

PeerlessHDS-P835025

£36.89 · 34% less

Fs43 Hz −5%

Qts0.42 –

Vas19 L −6%

BL8.6 T·m +23%

Xmax7.4 mm +23%

Sensitivity87.1 dB −1.1

Dayton AudioDC160-4

£37.53 · 33% less

Fs39 Hz −14%

Qts0.43 –

Vas15 L −26%

BL7.0 T·m –

Xmax3.4 mm −43%

Sensitivity84.6 dB −3.6

Dayton AudioSIG180-4

£40.97 · 27% less

Fs41 Hz −11%

Qts0.38 −10%

Vas23.2 L +15%

BL6.6 T·m −6%

Xmax5 mm −17%

Sensitivity87.8 dB –

CIAREHW161N

£43.46 · 22% less

Fs47 Hz +4%

Qts0.37 −12%

Vas19.9 L –

BL7.4 T·m +6%

Xmax5 mm −17%

Sensitivity88.6 dB –

SB AcousticsSB17NRX2C35-8

£55.41 · Same price

Fs37 Hz −20%

Qts0.42 –

Vas27 L +34%

BL6.3 T·m −11%

Xmax5.5 mm −8%

Sensitivity86.5 dB −1.7

Scanspeak18W/8434G00

£57.57 · 3% more

Fs50 Hz +10%

Qts0.43 –

Vas19.5 L −3%

BL7.2 T·m –

Xmax4.2 mm −30%

Sensitivity89.3 dB +1.1

CIAREHW172

£62.68 · 12% more

Fs46 Hz –

Qts0.37 −12%

Vas20 L –

BL7.6 T·m +8%

Xmax4.5 mm −25%

Sensitivity88.4 dB –

SB AcousticsSB17NAC35-8

£70.62 · 26% more

Fs32 Hz −31%

Qts0.42 –

Vas33 L +63%

BL6.2 T·m −12%

Xmax5.5 mm −8%

Sensitivity85.6 dB −2.6

Dayton AudioRS180P-8

£70.96 · 27% more

Fs46 Hz –

Qts0.34 −19%

Vas22 L +9%

BL7.2 T·m –

Xmax6 mm –

Sensitivity88.8 dB +0.6

Dayton AudioRS180S-8

£78.48 · 40% more

Fs38 Hz −17%

Qts0.36 −14%

Vas23 L +14%

BL7.3 T·m +4%

Xmax6 mm –

Sensitivity86 dB −2.2

SEASH1571-08 U18RNX/P

£143.75 · 157% more

Fs43 Hz −5%

Qts0.37 −12%

Vas22 L +9%

BL6.9 T·m –

Xmax6 mm –

Sensitivity87.9 dB –

RS SpeakersMW 174.38 FIBONACCI

£145.42 · 160% more

Fs46 Hz –

Qts0.39 −7%

Vas18.7 L −7%

BL7.0 T·m –

Xmax4.5 mm −25%

Sensitivity88.3 dB –

Scanspeak15W/8531K00

£150.70 · 170% more

Fs39 Hz −14%

Qts0.38 −10%

Vas16.7 L −17%

BL6.6 T·m −6%

Xmax6.5 mm +8%

Sensitivity85.8 dB −2.4

Scanspeak15W/8530K00

£157.03 · 181% more

Fs39 Hz −14%

Qts0.39 −7%

Vas16 L −21%

BL6.6 T·m −6%

Xmax6.5 mm +8%

Sensitivity85.5 dB −2.7

Scanspeak18W/8542-10

£157.04 · 181% more

Fs43 Hz −5%

Qts0.35 −17%

Vas26 L +29%

BL6.9 T·m –

Xmax6.5 mm +8%

Sensitivity88.7 dB +0.5

WavecorSW182BD03

£160.89 · 188% more

Fs35 Hz −23%

Qts0.44 +5%

Vas12.7 L −37%

BL7.6 T·m +8%

Xmax7 mm +17%

Sensitivity82.9 dB −5.3

SEASE0076-08 W19NX001

£585.00 · 946% more

Fs34 Hz −25%

Qts0.41 –

Vas24 L +19%

BL8.3 T·m +18%

Xmax7 mm +17%

Sensitivity85.2 dB −3

AccutonC168-6-890

£919.31 · 1544% more

Fs41 Hz −10%

Qts0.44 +5%

Vas15 L −26%

BL7.5 T·m +7%

Xmax5 mm −17%

Sensitivity85.3 dB −2.9

HiViS6.5

No current price

Fs47 Hz +4%

Qts0.42 –

Vas18.4 L −9%

BL6.4 T·m −9%

Xmax5.8 mm −3%

Sensitivity88.1 dB –

HiViSS6.5R

No current price

Fs42 Hz −7%

Qts0.39 −7%

Vas21.6 L +7%

BL6.5 T·m −7%

Xmax5.8 mm −3%

Sensitivity87.7 dB −0.5

RS SpeakersW 174.38 FIBONACCI

No current price

Fs38 Hz −17%

Qts0.38 −10%

Vas22.9 L +13%

BL7.2 T·m +3%

Xmax6 mm –

Sensitivity87 dB −1.2

HiViSS6.5

No current price

Fs42 Hz −7%

Qts0.39 −7%

Vas24.8 L +23%

BL6.4 T·m −9%

Xmax5.8 mm −3%

Sensitivity88.1 dB –

HiViS6.5R

No current price

Fs41 Hz −10%

Qts0.38 −10%

Vas23.2 L +15%

BL6.5 T·m −7%

Xmax5.8 mm −3%

Sensitivity87.8 dB –

HiViF6N

No current price

Fs48 Hz +6%

Qts0.43 –

Vas19.1 L −5%

BL7.3 T·m +4%

Xmax4.5 mm −25%

Sensitivity88.7 dB +0.5

WavecorWF182BD11

No current price

Fs34 Hz −25%

Qts0.42 –

Vas24.3 L +20%

BL8.2 T·m +17%

Xmax5.5 mm −8%

Sensitivity85.4 dB −2.8

WavecorWF182BD19

No current price

Fs34 Hz −25%

Qts0.42 –

Vas24.3 L +20%

BL8.2 T·m +17%

Xmax5.5 mm −8%

Sensitivity85.4 dB −2.8

CelestionNTR06-1705D

No current price

Fs49 Hz +8%

Qts0.38 −10%

Vas21.4 L +6%

BL8.2 T·m +16%

Xmax6 mm –

Sensitivity90 dB +1.8

HiViE6.5N

No current price

Fs43 Hz −5%

Qts0.40 −5%

Vas21 L +4%

BL7.1 T·m –

Xmax4.3 mm −29%

Sensitivity87.2 dB −1

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
SoundImports Checked 4 Nov 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£89.39, the lowest price		4 in stock	Visit shop at SoundImports

Best price over time

Tracked since 4 Nov