7.25-inch LF driver · vKi series · 250 W

Kartesian SUB185_VKI 4Ω

Name: Kartesian SUB185_VKI 4 Ohm
Brand: Kartesian
SKU: SUB185_VKI

4 Ω · 25–1500 Hz

No current price

View offers

Open in 00 Simulator

Fs: 28Hz
Xmax: 15mm
SPL: 85dB
Pe: 250W
BL: 6.9T·m
Vd: 269cm³
Qts: 0.41
Vas: 39L

See all 20 specs

Specifications

Published by Kartesian

Manufacturer page

Datasheet PDF

Kartesian SUB185_VKI is a 7.25-inch 4 ohm LF driver rated at 250 W RMS. The validated T/S data includes Fs 28 Hz, Qts 0.41, Vas 38.6 L, Xmax 15 mm, sensitivity 84.8 dB, plus 269 cm³ Vd and 62 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.

The published T/S values agree with each other

Thiele/Small

Fs: 28Hz
Qts: 0.41
Qes: 0.45
Qms: 3.8
Vas: 38.6L
Re: 3.2Ω
Le: 0.19mH

Motor and cone

BL: 6.9T·m
Sd: 179cm²
Mms: 38g
Xmax: 15mm
Vd †: 269cm³

Power and response

Sensitivity †: 84.8dB
Manufacturer sensitivity: 89dB
Power: 250W
Impedance: 4Ω
Range: 25–1500Hz
EBP †: 62 · Sealed or vented

Size and mounting

Diameter: 185mm

Other published values

Rms: 1.39kg/s

Sensitivity shows 84.8 dB, calculated from the T/S values. Kartesian publishes 89.0 dB, 4.2 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Kartesian lists

LF · Primary · 7.283464566929134″

BL: 6.9T·m
Fs: 28Hz
Le: 0.19mH
Re: 3.2Ω
Sd: 179cm²
Mms: 38g
Qes: 0.45
Qms: 3.8
Qts: 0.41
Rms: 1.39kg/s
SPL: 84.8dB
Vas: 38.6L
Xmax: 15mm
Power: 250W
Impedance: 4Ω
Sensitivity: 89dB
Low limit: 25Hz
Calculated sensitivity †: 84.8dB
High limit: 1500Hz
Manufacturer sensitivity: 89dB
Diameter: 185mm

Compare

Same-size drivers, compared with the SUB185_VKI. Clear differences are green when better and red when worse.

This driverSUB185_VKI

Best price

–

28 Hz

Qts

0.41

Vas

38.6 L

6.9 T·m

Xmax

15 mm

Sensitivity

84.8 dB

Power

250 W

Dayton AudioSD215A-88

£50.20

Fs31 Hz +11%

Qts0.39 −5%

Vas38.2 L –

BL7.7 T·m +11%

Xmax6 mm −60%

Sensitivity86.1 dB +1.3

HiViF8

£52.71

Fs37 Hz +32%

Qts0.40 –

Vas38.8 L –

BL10.3 T·m +49%

Xmax5 mm −67%

Sensitivity88.5 dB +3.7

Sica6.5 H 1.5 CP

£56.02

Fs45 Hz +62%

Qts0.42 –

Vas20.2 L −48%

BL7.0 T·m –

Xmax6 mm −60%

Sensitivity88.2 dB +3.4

Scanspeak18W/8434G00

£57.57

Fs50 Hz +79%

Qts0.43 +5%

Vas19.5 L −49%

BL7.2 T·m +4%

Xmax4.2 mm −72%

Sensitivity89.3 dB +4.5

CIAREHW203

£58.61

Fs39 Hz +39%

Qts0.42 –

Vas48.9 L +27%

BL8.1 T·m +17%

Xmax4.5 mm −70%

Sensitivity89.8 dB +5

MonacorSPH-176

£58.80

Fs39 Hz +39%

Qts0.37 −10%

Vas27 L −30%

BL7.7 T·m +11%

Xmax5.5 mm −63%

Sensitivity87.6 dB +2.8

REDCATT8FR

£66.10

Fs53 Hz +89%

Qts0.38 −8%

Vas36.8 L −5%

BL7.9 T·m +14%

Xmax5.8 mm −61%

Sensitivity93.4 dB +8.6

Dayton AudioRS225-4

£67.31

Fs33 Hz +18%

Qts0.41 –

Vas46.4 L +20%

BL6.4 T·m −8%

Xmax6 mm −60%

Sensitivity87.1 dB +2.3

Dayton AudioRS225P-4A

£67.31

Fs38 Hz +35%

Qts0.38 −7%

Vas45.8 L +19%

BL6.4 T·m −8%

Xmax6 mm −60%

Sensitivity89.1 dB +4.3

MonacorSPH-175HQ

£68.66

Fs39 Hz +39%

Qts0.42 –

Vas33 L −15%

BL6.4 T·m −8%

Xmax5.5 mm −63%

Sensitivity88 dB +3.2

REDCATT8FHM

£83.69

Fs38 Hz +36%

Qts0.39 −5%

Vas32.1 L −17%

BL8.2 T·m +18%

Xmax5 mm −67%

Sensitivity88.4 dB +3.6

SEASH1571-08 U18RNX/P

£125.61

Fs43 Hz +54%

Qts0.37 −10%

Vas22 L −43%

BL6.9 T·m –

Xmax6 mm −60%

Sensitivity87.9 dB +3.1

RS SpeakersMW 174.38 FIBONACCI

£145.69

Fs46 Hz +63%

Qts0.39 −5%

Vas18.7 L −52%

BL7.0 T·m –

Xmax4.5 mm −70%

Sensitivity88.3 dB +3.5

SEASH1794-08 FEA18RCZ

£152.39

Fs42 Hz +50%

Qts0.39 −5%

Vas31 L −20%

BL6.6 T·m −5%

Xmax3 mm −80%

Sensitivity89.4 dB +4.6

Scanspeak18W/8542-10

£157.04

Fs43 Hz +54%

Qts0.35 −15%

Vas26 L −33%

BL6.9 T·m –

Xmax6.5 mm −57%

Sensitivity88.7 dB +3.9

WavecorWF223BD01

£205.39

Fs33 Hz +16%

Qts0.39 −5%

Vas45 L +17%

BL7.7 T·m +11%

Xmax6.5 mm −57%

Sensitivity87.9 dB +3.1

Scanspeak18WU/8747T00

£284.64

Fs36 Hz +29%

Qts0.38 −7%

Vas36.2 L −6%

BL7.4 T·m +7%

Xmax9 mm −40%

Sensitivity88 dB +3.2

Scanspeak18WU/8741T00

£300.68

Fs35 Hz +25%

Qts0.39 −5%

Vas37.1 L −4%

BL7.3 T·m +5%

Xmax9 mm −40%

Sensitivity87.6 dB +2.8

Scanspeak18WU/4741T00

£304.20

Fs34 Hz +21%

Qts0.36 −12%

Vas38.4 L –

BL5.9 T·m −15%

Xmax9 mm −40%

Sensitivity87.9 dB +3.1

SEASE0018-08S W18E001

£376.75

Fs34 Hz +21%

Qts0.42 –

Vas30 L −22%

BL6.6 T·m −5%

Xmax5 mm −67%

Sensitivity85.8 dB +1

SEASE0117-08 W19NX004

£502.34

Fs33 Hz +18%

Qts0.39 −5%

Vas33 L −15%

BL7.9 T·m +14%

Xmax7 mm −53%

Sensitivity86.5 dB +1.7

SEASE0076-08 W19NX001

£586.08

Fs34 Hz +21%

Qts0.41 –

Vas24 L −38%

BL8.3 T·m +20%

Xmax7 mm −53%

Sensitivity85.2 dB –

CIARECW202

No current price

Fs40 Hz +43%

Qts0.41 –

Vas48 L +24%

BL6.5 T·m −6%

Xmax6.5 mm −57%

Sensitivity90.1 dB +5.3

Supravox165 GMF

No current price

Fs70 Hz +150%

Qts0.39 −5%

Vas40 L +4%

BL5.6 T·m −19%

Xmax6 mm −60%

Sensitivity97.2 dB +12.4

HiViSS6.5

No current price

Fs42 Hz +50%

Qts0.39 −5%

Vas24.8 L −36%

BL6.4 T·m −8%

Xmax5.8 mm −61%

Sensitivity88.1 dB +3.3

CIARECMI160

No current price

Fs70 Hz +150%

Qts0.41 –

Vas7.8 L −80%

BL7.2 T·m +4%

Xmax4.5 mm −70%

Sensitivity89.8 dB +5

CIARECME201

No current price

Fs60 Hz +114%

Qts0.40 –

Vas21.5 L −44%

BL7.5 T·m +8%

Xmax4.5 mm −70%

Sensitivity92.3 dB +7.5

HiViSS6.5R

No current price

Fs42 Hz +50%

Qts0.39 −5%

Vas21.6 L −44%

BL6.5 T·m −6%

Xmax5.8 mm −61%

Sensitivity87.7 dB +2.9

HiViS8-98R

No current price

Fs33 Hz +18%

Qts0.42 –

Vas65.2 L +69%

BL6.9 T·m –

Xmax6 mm −60%

Sensitivity89 dB +4.2

HiViE6.5N

No current price

Fs43 Hz +54%

Qts0.40 –

Vas21 L −46%

BL7.1 T·m +3%

Xmax4.3 mm −72%

Sensitivity87.2 dB +2.4

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

No current price found. Pricing may appear after the next vendor refresh.

bits00 AUDIO

7.25-inch LF driver · vKi series · 250 W

Kartesian SUB185_VKI 4Ω

4 Ω · 25–1500 Hz

No current price

View offers

Open in 00 Simulator

Fs: 28Hz
Xmax: 15mm
SPL: 85dB
Pe: 250W
BL: 6.9T·m
Vd: 269cm³
Qts: 0.41
Vas: 39L

See all 20 specs

Specifications

Published by Kartesian

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 28Hz
Qts: 0.41
Qes: 0.45
Qms: 3.8
Vas: 38.6L
Re: 3.2Ω
Le: 0.19mH

Motor and cone

BL: 6.9T·m
Sd: 179cm²
Mms: 38g
Xmax: 15mm
Vd †: 269cm³

Power and response

Sensitivity †: 84.8dB
Manufacturer sensitivity: 89dB
Power: 250W
Impedance: 4Ω
Range: 25–1500Hz
EBP †: 62 · Sealed or vented

Size and mounting

Diameter: 185mm

Other published values

Rms: 1.39kg/s

Sensitivity shows 84.8 dB, calculated from the T/S values. Kartesian publishes 89.0 dB, 4.2 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Kartesian lists

LF · Primary · 7.283464566929134″

BL: 6.9T·m
Fs: 28Hz
Le: 0.19mH
Re: 3.2Ω
Sd: 179cm²
Mms: 38g
Qes: 0.45
Qms: 3.8
Qts: 0.41
Rms: 1.39kg/s
SPL: 84.8dB
Vas: 38.6L
Xmax: 15mm
Power: 250W
Impedance: 4Ω
Sensitivity: 89dB
Low limit: 25Hz
Calculated sensitivity †: 84.8dB
High limit: 1500Hz
Manufacturer sensitivity: 89dB
Diameter: 185mm

Compare

Same-size drivers, compared with the SUB185_VKI. Clear differences are green when better and red when worse.

This driverSUB185_VKI

Best price

–

28 Hz

Qts

0.41

Vas

38.6 L

6.9 T·m

Xmax

15 mm

Sensitivity

84.8 dB

Power

250 W

Dayton AudioSD215A-88

£50.20

Fs31 Hz +11%

Qts0.39 −5%

Vas38.2 L –

BL7.7 T·m +11%

Xmax6 mm −60%

Sensitivity86.1 dB +1.3

HiViF8

£52.71

Fs37 Hz +32%

Qts0.40 –

Vas38.8 L –

BL10.3 T·m +49%

Xmax5 mm −67%

Sensitivity88.5 dB +3.7

Sica6.5 H 1.5 CP

£56.02

Fs45 Hz +62%

Qts0.42 –

Vas20.2 L −48%

BL7.0 T·m –

Xmax6 mm −60%

Sensitivity88.2 dB +3.4

Scanspeak18W/8434G00

£57.57

Fs50 Hz +79%

Qts0.43 +5%

Vas19.5 L −49%

BL7.2 T·m +4%

Xmax4.2 mm −72%

Sensitivity89.3 dB +4.5

CIAREHW203

£58.61

Fs39 Hz +39%

Qts0.42 –

Vas48.9 L +27%

BL8.1 T·m +17%

Xmax4.5 mm −70%

Sensitivity89.8 dB +5

MonacorSPH-176

£58.80

Fs39 Hz +39%

Qts0.37 −10%

Vas27 L −30%

BL7.7 T·m +11%

Xmax5.5 mm −63%

Sensitivity87.6 dB +2.8

REDCATT8FR

£66.10

Fs53 Hz +89%

Qts0.38 −8%

Vas36.8 L −5%

BL7.9 T·m +14%

Xmax5.8 mm −61%

Sensitivity93.4 dB +8.6

Dayton AudioRS225-4

£67.31

Fs33 Hz +18%

Qts0.41 –

Vas46.4 L +20%

BL6.4 T·m −8%

Xmax6 mm −60%

Sensitivity87.1 dB +2.3

Dayton AudioRS225P-4A

£67.31

Fs38 Hz +35%

Qts0.38 −7%

Vas45.8 L +19%

BL6.4 T·m −8%

Xmax6 mm −60%

Sensitivity89.1 dB +4.3

MonacorSPH-175HQ

£68.66

Fs39 Hz +39%

Qts0.42 –

Vas33 L −15%

BL6.4 T·m −8%

Xmax5.5 mm −63%

Sensitivity88 dB +3.2

REDCATT8FHM

£83.69

Fs38 Hz +36%

Qts0.39 −5%

Vas32.1 L −17%

BL8.2 T·m +18%

Xmax5 mm −67%

Sensitivity88.4 dB +3.6

SEASH1571-08 U18RNX/P

£125.61

Fs43 Hz +54%

Qts0.37 −10%

Vas22 L −43%

BL6.9 T·m –

Xmax6 mm −60%

Sensitivity87.9 dB +3.1

RS SpeakersMW 174.38 FIBONACCI

£145.69

Fs46 Hz +63%

Qts0.39 −5%

Vas18.7 L −52%

BL7.0 T·m –

Xmax4.5 mm −70%

Sensitivity88.3 dB +3.5

SEASH1794-08 FEA18RCZ

£152.39

Fs42 Hz +50%

Qts0.39 −5%

Vas31 L −20%

BL6.6 T·m −5%

Xmax3 mm −80%

Sensitivity89.4 dB +4.6

Scanspeak18W/8542-10

£157.04

Fs43 Hz +54%

Qts0.35 −15%

Vas26 L −33%

BL6.9 T·m –

Xmax6.5 mm −57%

Sensitivity88.7 dB +3.9

WavecorWF223BD01

£205.39

Fs33 Hz +16%

Qts0.39 −5%

Vas45 L +17%

BL7.7 T·m +11%

Xmax6.5 mm −57%

Sensitivity87.9 dB +3.1

Scanspeak18WU/8747T00

£284.64

Fs36 Hz +29%

Qts0.38 −7%

Vas36.2 L −6%

BL7.4 T·m +7%

Xmax9 mm −40%

Sensitivity88 dB +3.2

Scanspeak18WU/8741T00

£300.68

Fs35 Hz +25%

Qts0.39 −5%

Vas37.1 L −4%

BL7.3 T·m +5%

Xmax9 mm −40%

Sensitivity87.6 dB +2.8

Scanspeak18WU/4741T00

£304.20

Fs34 Hz +21%

Qts0.36 −12%

Vas38.4 L –

BL5.9 T·m −15%

Xmax9 mm −40%

Sensitivity87.9 dB +3.1

SEASE0018-08S W18E001

£376.75

Fs34 Hz +21%

Qts0.42 –

Vas30 L −22%

BL6.6 T·m −5%

Xmax5 mm −67%

Sensitivity85.8 dB +1

SEASE0117-08 W19NX004

£502.34

Fs33 Hz +18%

Qts0.39 −5%

Vas33 L −15%

BL7.9 T·m +14%

Xmax7 mm −53%

Sensitivity86.5 dB +1.7

SEASE0076-08 W19NX001

£586.08

Fs34 Hz +21%

Qts0.41 –

Vas24 L −38%

BL8.3 T·m +20%

Xmax7 mm −53%

Sensitivity85.2 dB –

CIARECW202

No current price

Fs40 Hz +43%

Qts0.41 –

Vas48 L +24%

BL6.5 T·m −6%

Xmax6.5 mm −57%

Sensitivity90.1 dB +5.3

Supravox165 GMF

No current price

Fs70 Hz +150%

Qts0.39 −5%

Vas40 L +4%

BL5.6 T·m −19%

Xmax6 mm −60%

Sensitivity97.2 dB +12.4

HiViSS6.5

No current price

Fs42 Hz +50%

Qts0.39 −5%

Vas24.8 L −36%

BL6.4 T·m −8%

Xmax5.8 mm −61%

Sensitivity88.1 dB +3.3

CIARECMI160

No current price

Fs70 Hz +150%

Qts0.41 –

Vas7.8 L −80%

BL7.2 T·m +4%

Xmax4.5 mm −70%

Sensitivity89.8 dB +5

CIARECME201

No current price

Fs60 Hz +114%

Qts0.40 –

Vas21.5 L −44%

BL7.5 T·m +8%

Xmax4.5 mm −70%

Sensitivity92.3 dB +7.5

HiViSS6.5R

No current price

Fs42 Hz +50%

Qts0.39 −5%

Vas21.6 L −44%

BL6.5 T·m −6%

Xmax5.8 mm −61%

Sensitivity87.7 dB +2.9

HiViS8-98R

No current price

Fs33 Hz +18%

Qts0.42 –

Vas65.2 L +69%

BL6.9 T·m –

Xmax6 mm −60%

Sensitivity89 dB +4.2

HiViE6.5N

No current price

Fs43 Hz +54%

Qts0.40 –

Vas21 L −46%

BL7.1 T·m +3%

Xmax4.3 mm −72%

Sensitivity87.2 dB +2.4

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

No current price found. Pricing may appear after the next vendor refresh.