8-inch LF driver · SP series · 50 mm voice coil · 150 W

Monacor SP-308CX 8Ω

Name: Monacor SP-308CX 8 Ohm
Brand: Monacor
SKU: SP-308CX

8 Ω · 3–3000 Hz

No current price

View offers

Open in 00 Simulator

Fs: 80Hz
Xmax: 2.5mm
SPL: 95dB
Pe: 150W
BL: 12.1T·m
Vd: 55cm³
Qts: 0.36
Vas: 15L

See all 26 specs

Specifications

Published by Monacor

Manufacturer page

Datasheet PDF

Monacor SP-308CX is an 8-inch 8 ohm LF driver rated at 150 W RMS. The validated T/S data includes Fs 80 Hz, Qts 0.36, Vas 15.4 L, Xmax 2.5 mm, sensitivity 94.7 dB, plus 55 cm³ Vd and 186 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: 80Hz
Qts: 0.36
Qes: 0.43
Qms: 2.2
Vas: 15.4L
Re: 5.8Ω
Le: 0.58mH

Motor and cone

BL: 12.1T·m
Sd: 221cm²
Mms: 17g
Xmax: 2.5mm
Vd †: 55cm³
Voice coil: 50mm

Power and response

Sensitivity †: 94.7dB
Manufacturer sensitivity: 95dB
Power: 150W
Impedance: 8Ω
Range: 3–3000Hz
EBP †: 186 · Leans vented

Size and mounting

Diameter: 208mm
Cutout: 184mm
Depth: 169.3mm
Weight: 4.8kg

Other published values

Cms: 0.22mm/N
Power Peak: 300

Other dimensions

Mounting Depth: 159

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: 12.1T·m
Fs: 80Hz
Le: 0.58mH
Re: 5.8Ω
Sd: 221cm²
Cms: 0.22mm/N
Mms: 17g
Qes: 0.43
Qms: 2.2
Qts: 0.36
SPL: 94.7dB
Vas: 15.4L
Xmax: 2.5mm
Power: 150W
Impedance: 8Ω
Power Peak: 300
Sensitivity: 95dB
Low limit: 3Hz
Calculated sensitivity †: 94.7dB
High limit: 3000Hz
Manufacturer sensitivity: 95dB
Voice coil: 50mm
Weight: 4.8kg
Diameter: 208mm
Depth: 169.3mm
Mounting Depth: 159
Cutout: 184mm

Compare

Same-size drivers, compared with the SP-308CX. Clear differences are green when better and red when worse.

This driverSP-308CX

Best price

–

80 Hz

Qts

0.36

Vas

15.4 L

12.1 T·m

Xmax

2.5 mm

Sensitivity

94.7 dB

Power

150 W

PeerlessFSL-0818R01-08

£33.66

Fs74 Hz −8%

Qts0.37 –

Vas15.9 L +3%

BL11.3 T·m −7%

Xmax4.3 mm +74%

Sensitivity93.9 dB −0.8

SB AudienceBIANCO-8MW250

£49.00

Fs74 Hz −8%

Qts0.40 +11%

Vas13.8 L −10%

BL11 T·m −9%

Xmax6.5 mm +160%

Sensitivity93 dB −1.7

CelestionTRUVOX 0820

£59.70

Fs74 Hz −7%

Qts0.39 +8%

Vas17.3 L +12%

BL11.5 T·m −5%

Xmax5 mm +100%

Sensitivity94.3 dB –

LavoceWAF082.00

£71.42

Fs78 Hz –

Qts0.37 –

Vas11.9 L −23%

BL12.5 T·m +3%

Xmax6.3 mm +152%

Sensitivity93.4 dB −1.3

FaitalPRO8PR200

£73.79

Fs58 Hz −28%

Qts0.37 –

Vas16.9 L +10%

BL11.5 T·m −5%

Xmax8.2 mm +226%

Sensitivity91.4 dB −3.3

FaitalPRO8PR320

£75.00

Fs65 Hz −19%

Qts0.41 +14%

Vas13.1 L −15%

BL12.9 T·m +7%

Xmax7.3 mm +193%

Sensitivity91.3 dB −3.4

CIAREPWA8.50

£77.03

Fs74 Hz −8%

Qts0.38 +6%

Vas12 L −22%

BL12.7 T·m +5%

Xmax6.8 mm +172%

Sensitivity92.8 dB −1.9

B&C8PS21

£79.73

Fs73 Hz −9%

Qts0.33 −8%

Vas14 L −9%

BL12.6 T·m +4%

Xmax5 mm +100%

Sensitivity93.8 dB −0.9

Sica8 S 2.5 CP

£80.30

Fs54 Hz −33%

Qts0.33 −8%

Vas18.6 L +21%

BL11.9 T·m –

Xmax5 mm +100%

Sensitivity91 dB −3.7

B&C8CL51

£84.57

Fs69 Hz −14%

Qts0.41 +14%

Vas12.5 L −19%

BL12 T·m –

Xmax6.5 mm +160%

Sensitivity91.7 dB −3

CelestionCF0820BMB

£85.00

Fs51 Hz −37%

Qts0.37 –

Vas22.4 L +46%

BL11.9 T·m –

Xmax7.3 mm +190%

Sensitivity90.7 dB −4

B&C8NDL51

£89.68

Fs66 Hz −18%

Qts0.37 –

Vas14 L −9%

BL12.4 T·m –

Xmax7 mm +180%

Sensitivity91.9 dB −2.8

Beyma8G40

£100.07

Fs70 Hz −13%

Qts0.36 –

Vas17 L +10%

BL12.2 T·m –

Xmax6.5 mm +160%

Sensitivity93.9 dB −0.8

Sica8 FE 2 CP

£104.62

Fs67 Hz −16%

Qts0.32 −11%

Vas16.9 L +10%

BL12.3 T·m –

Xmax4.5 mm +80%

Sensitivity93.4 dB −1.3

B&C8BG51

£105.50

Fs52 Hz −35%

Qts0.40 +11%

Vas18 L +17%

BL11.8 T·m –

Xmax6.5 mm +160%

Sensitivity89.8 dB −4.9

WavecorSW178WA01

£120.66

Fs38 Hz −53%

Qts0.36 –

Vas12.2 L −21%

BL12 T·m –

Xmax5 mm +100%

Sensitivity84.6 dB −10.1

FaitalPRO8HX150

£135.13

Fs76 Hz −5%

Qts0.41 +14%

Vas13 L −16%

BL11.6 T·m −4%

Xmax4.9 mm +97%

Sensitivity93.3 dB −1.4

LavoceCSF082.00K

£141.38

Fs81 Hz –

Qts0.40 +11%

Vas14.8 L −4%

BL11.0 T·m −9%

Xmax5 mm +100%

Sensitivity94.5 dB –

B&C8CX21

£151.61

Fs74 Hz −8%

Qts0.36 –

Vas15 L –

BL11.5 T·m −5%

Xmax5.5 mm +120%

Sensitivity94 dB −0.7

SB AudienceNERO-8MWN400D

£152.56

Fs63 Hz −21%

Qts0.38 +6%

Vas13.9 L −10%

BL11.9 T·m –

Xmax6.7 mm +168%

Sensitivity91.3 dB −3.4

Dayton AudioRSS210HO-4

£175.79

Fs30 Hz −63%

Qts0.40 +11%

Vas18.7 L +21%

BL12 T·m –

Xmax11 mm +340%

Sensitivity82.3 dB −12.4

B&C8FCX51

£186.30

Fs69 Hz −14%

Qts0.34 −6%

Vas16 L +4%

BL11.5 T·m −5%

Xmax6 mm +140%

Sensitivity93.7 dB −1

Eighteen Sound8CX650

£344.69

Fs65 Hz −19%

Qts0.35 –

Vas16.6 L +8%

BL12 T·m –

Xmax6 mm +140%

Sensitivity92.9 dB −1.8

LavoceWSF081.82

No current price

Fs79 Hz –

Qts0.38 +6%

Vas14.3 L −7%

BL11.3 T·m −7%

Xmax4.6 mm +84%

Sensitivity94.2 dB −0.5

JensenBS8N250A-8

No current price

Fs59 Hz −26%

Qts0.37 –

Vas14.9 L −3%

BL12.8 T·m +6%

Xmax5 mm +100%

Sensitivity91 dB −3.7

LavoceCAF082.00K

No current price

Fs72 Hz −10%

Qts0.34 −6%

Vas15.1 L –

BL11.7 T·m −4%

Xmax6.7 mm +168%

Sensitivity93.7 dB −1

Tang BandW8-1363SBF

No current price

Fs32 Hz −60%

Qts0.39 +8%

Vas13.4 L −13%

BL13.0 T·m +8%

Xmax12 mm +380%

Sensitivity82.1 dB −12.6

SB AudienceROSSO-8CX250

No current price

Fs70 Hz −13%

Qts0.32 −11%

Vas15.8 L –

BL11.4 T·m −6%

Xmax5.4 mm +116%

Sensitivity93.7 dB −1

Oberton8NCX

No current price

Fs77 Hz −3%

Qts0.40 +11%

Vas14.9 L −3%

BL10.1 T·m −17%

Xmax5.3 mm +110%

Sensitivity94 dB −0.7

JensenBP8150-8

No current price

Fs75 Hz −7%

Qts0.33 −8%

Vas13.1 L −15%

BL13.3 T·m +10%

Xmax3.1 mm +24%

Sensitivity93.8 dB −0.9

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

8-inch LF driver · SP series · 50 mm voice coil · 150 W

Monacor SP-308CX 8Ω

8 Ω · 3–3000 Hz

No current price

View offers

Open in 00 Simulator

Fs: 80Hz
Xmax: 2.5mm
SPL: 95dB
Pe: 150W
BL: 12.1T·m
Vd: 55cm³
Qts: 0.36
Vas: 15L

See all 26 specs

Specifications

Published by Monacor

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 80Hz
Qts: 0.36
Qes: 0.43
Qms: 2.2
Vas: 15.4L
Re: 5.8Ω
Le: 0.58mH

Motor and cone

BL: 12.1T·m
Sd: 221cm²
Mms: 17g
Xmax: 2.5mm
Vd †: 55cm³
Voice coil: 50mm

Power and response

Sensitivity †: 94.7dB
Manufacturer sensitivity: 95dB
Power: 150W
Impedance: 8Ω
Range: 3–3000Hz
EBP †: 186 · Leans vented

Size and mounting

Diameter: 208mm
Cutout: 184mm
Depth: 169.3mm
Weight: 4.8kg

Other published values

Cms: 0.22mm/N
Power Peak: 300

Other dimensions

Mounting Depth: 159

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: 12.1T·m
Fs: 80Hz
Le: 0.58mH
Re: 5.8Ω
Sd: 221cm²
Cms: 0.22mm/N
Mms: 17g
Qes: 0.43
Qms: 2.2
Qts: 0.36
SPL: 94.7dB
Vas: 15.4L
Xmax: 2.5mm
Power: 150W
Impedance: 8Ω
Power Peak: 300
Sensitivity: 95dB
Low limit: 3Hz
Calculated sensitivity †: 94.7dB
High limit: 3000Hz
Manufacturer sensitivity: 95dB
Voice coil: 50mm
Weight: 4.8kg
Diameter: 208mm
Depth: 169.3mm
Mounting Depth: 159
Cutout: 184mm

Compare

Same-size drivers, compared with the SP-308CX. Clear differences are green when better and red when worse.

This driverSP-308CX

Best price

–

80 Hz

Qts

0.36

Vas

15.4 L

12.1 T·m

Xmax

2.5 mm

Sensitivity

94.7 dB

Power

150 W

PeerlessFSL-0818R01-08

£33.66

Fs74 Hz −8%

Qts0.37 –

Vas15.9 L +3%

BL11.3 T·m −7%

Xmax4.3 mm +74%

Sensitivity93.9 dB −0.8

SB AudienceBIANCO-8MW250

£49.00

Fs74 Hz −8%

Qts0.40 +11%

Vas13.8 L −10%

BL11 T·m −9%

Xmax6.5 mm +160%

Sensitivity93 dB −1.7

CelestionTRUVOX 0820

£59.70

Fs74 Hz −7%

Qts0.39 +8%

Vas17.3 L +12%

BL11.5 T·m −5%

Xmax5 mm +100%

Sensitivity94.3 dB –

LavoceWAF082.00

£71.42

Fs78 Hz –

Qts0.37 –

Vas11.9 L −23%

BL12.5 T·m +3%

Xmax6.3 mm +152%

Sensitivity93.4 dB −1.3

FaitalPRO8PR200

£73.79

Fs58 Hz −28%

Qts0.37 –

Vas16.9 L +10%

BL11.5 T·m −5%

Xmax8.2 mm +226%

Sensitivity91.4 dB −3.3

FaitalPRO8PR320

£75.00

Fs65 Hz −19%

Qts0.41 +14%

Vas13.1 L −15%

BL12.9 T·m +7%

Xmax7.3 mm +193%

Sensitivity91.3 dB −3.4

CIAREPWA8.50

£77.03

Fs74 Hz −8%

Qts0.38 +6%

Vas12 L −22%

BL12.7 T·m +5%

Xmax6.8 mm +172%

Sensitivity92.8 dB −1.9

B&C8PS21

£79.73

Fs73 Hz −9%

Qts0.33 −8%

Vas14 L −9%

BL12.6 T·m +4%

Xmax5 mm +100%

Sensitivity93.8 dB −0.9

Sica8 S 2.5 CP

£80.30

Fs54 Hz −33%

Qts0.33 −8%

Vas18.6 L +21%

BL11.9 T·m –

Xmax5 mm +100%

Sensitivity91 dB −3.7

B&C8CL51

£84.57

Fs69 Hz −14%

Qts0.41 +14%

Vas12.5 L −19%

BL12 T·m –

Xmax6.5 mm +160%

Sensitivity91.7 dB −3

CelestionCF0820BMB

£85.00

Fs51 Hz −37%

Qts0.37 –

Vas22.4 L +46%

BL11.9 T·m –

Xmax7.3 mm +190%

Sensitivity90.7 dB −4

B&C8NDL51

£89.68

Fs66 Hz −18%

Qts0.37 –

Vas14 L −9%

BL12.4 T·m –

Xmax7 mm +180%

Sensitivity91.9 dB −2.8

Beyma8G40

£100.07

Fs70 Hz −13%

Qts0.36 –

Vas17 L +10%

BL12.2 T·m –

Xmax6.5 mm +160%

Sensitivity93.9 dB −0.8

Sica8 FE 2 CP

£104.62

Fs67 Hz −16%

Qts0.32 −11%

Vas16.9 L +10%

BL12.3 T·m –

Xmax4.5 mm +80%

Sensitivity93.4 dB −1.3

B&C8BG51

£105.50

Fs52 Hz −35%

Qts0.40 +11%

Vas18 L +17%

BL11.8 T·m –

Xmax6.5 mm +160%

Sensitivity89.8 dB −4.9

WavecorSW178WA01

£120.66

Fs38 Hz −53%

Qts0.36 –

Vas12.2 L −21%

BL12 T·m –

Xmax5 mm +100%

Sensitivity84.6 dB −10.1

FaitalPRO8HX150

£135.13

Fs76 Hz −5%

Qts0.41 +14%

Vas13 L −16%

BL11.6 T·m −4%

Xmax4.9 mm +97%

Sensitivity93.3 dB −1.4

LavoceCSF082.00K

£141.38

Fs81 Hz –

Qts0.40 +11%

Vas14.8 L −4%

BL11.0 T·m −9%

Xmax5 mm +100%

Sensitivity94.5 dB –

B&C8CX21

£151.61

Fs74 Hz −8%

Qts0.36 –

Vas15 L –

BL11.5 T·m −5%

Xmax5.5 mm +120%

Sensitivity94 dB −0.7

SB AudienceNERO-8MWN400D

£152.56

Fs63 Hz −21%

Qts0.38 +6%

Vas13.9 L −10%

BL11.9 T·m –

Xmax6.7 mm +168%

Sensitivity91.3 dB −3.4

Dayton AudioRSS210HO-4

£175.79

Fs30 Hz −63%

Qts0.40 +11%

Vas18.7 L +21%

BL12 T·m –

Xmax11 mm +340%

Sensitivity82.3 dB −12.4

B&C8FCX51

£186.30

Fs69 Hz −14%

Qts0.34 −6%

Vas16 L +4%

BL11.5 T·m −5%

Xmax6 mm +140%

Sensitivity93.7 dB −1

Eighteen Sound8CX650

£344.69

Fs65 Hz −19%

Qts0.35 –

Vas16.6 L +8%

BL12 T·m –

Xmax6 mm +140%

Sensitivity92.9 dB −1.8

LavoceWSF081.82

No current price

Fs79 Hz –

Qts0.38 +6%

Vas14.3 L −7%

BL11.3 T·m −7%

Xmax4.6 mm +84%

Sensitivity94.2 dB −0.5

JensenBS8N250A-8

No current price

Fs59 Hz −26%

Qts0.37 –

Vas14.9 L −3%

BL12.8 T·m +6%

Xmax5 mm +100%

Sensitivity91 dB −3.7

LavoceCAF082.00K

No current price

Fs72 Hz −10%

Qts0.34 −6%

Vas15.1 L –

BL11.7 T·m −4%

Xmax6.7 mm +168%

Sensitivity93.7 dB −1

Tang BandW8-1363SBF

No current price

Fs32 Hz −60%

Qts0.39 +8%

Vas13.4 L −13%

BL13.0 T·m +8%

Xmax12 mm +380%

Sensitivity82.1 dB −12.6

SB AudienceROSSO-8CX250

No current price

Fs70 Hz −13%

Qts0.32 −11%

Vas15.8 L –

BL11.4 T·m −6%

Xmax5.4 mm +116%

Sensitivity93.7 dB −1

Oberton8NCX

No current price

Fs77 Hz −3%

Qts0.40 +11%

Vas14.9 L −3%

BL10.1 T·m −17%

Xmax5.3 mm +110%

Sensitivity94 dB −0.7

JensenBP8150-8

No current price

Fs75 Hz −7%

Qts0.33 −8%

Vas13.1 L −15%

BL13.3 T·m +10%

Xmax3.1 mm +24%

Sensitivity93.8 dB −0.9

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.