4-inch LF driver · SP series · 25 mm voice coil · 30 W

Monacor SP-100/8 8Ω

Name: Monacor SP-100/8 8 Ohm
Brand: Monacor
SKU: SP-100/8
Availability: InStock

8 Ω · 3–7000 Hz

£31.15

Audiophonics · In stock · Ships from France · All 1 offer

Open in 00 Simulator

Fs: 61Hz
Xmax: 2.5mm
SPL: 86dB
Pe: 30W
BL: 5.5T·m
Vd: 13cm³
Qts: 0.37
Vas: 5L

See all 26 specs

Specifications

Published by Monacor

Manufacturer page

Datasheet PDF

Monacor SP-100/8 is a 4-inch 8 ohm LF driver rated at 30 W RMS. The validated T/S data includes Fs 61 Hz, Qts 0.37, Vas 4.7 L, Xmax 2.5 mm, sensitivity 85.9 dB, plus 13 cm³ Vd and 139 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 £31.15.

The published T/S values agree with each other

Thiele/Small

Fs: 61Hz
Qts: 0.37
Qes: 0.44
Qms: 2.3
Vas: 4.7L
Re: 6.5Ω
Le: 0.40mH

Motor and cone

BL: 5.5T·m
Sd: 52cm²
Mms: 6g
Xmax: 2.5mm
Vd †: 13cm³
Voice coil: 25mm

Power and response

Sensitivity †: 85.9dB
Manufacturer sensitivity: 88dB
Power: 30W
Impedance: 8Ω
Range: 3–7000Hz
EBP †: 139 · Leans vented

Size and mounting

Diameter: 127mm
Cutout: 103mm
Depth: 63mm
Weight: 0.8kg

Other published values

Cms: 1.23mm/N
Power Peak: 60

Other dimensions

Mounting Depth: 62.2

Sensitivity shows 85.9 dB, calculated from the T/S values. Monacor publishes 88.0 dB, 2.1 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Monacor lists

MF · Primary · 4″

BL: 5.5T·m
Fs: 61Hz
Le: 0.40mH
Re: 6.5Ω
Sd: 52cm²
Cms: 1.23mm/N
Mms: 6g
Qes: 0.44
Qms: 2.3
Qts: 0.37
SPL: 85.9dB
Vas: 4.7L
Xmax: 2.5mm
Power: 30W
Impedance: 8Ω
Power Peak: 60
Sensitivity: 88dB
Low limit: 3Hz
Calculated sensitivity †: 85.9dB
High limit: 7000Hz
Manufacturer sensitivity: 88dB
Voice coil: 25mm
Weight: 0.8kg
Diameter: 127mm
Depth: 63mm
Mounting Depth: 62.2
Cutout: 103mm

Compare

Same-size drivers, compared with the SP-100/8. Clear differences are green when better and red when worse.

This driverSP-100/8

Best price

£31.15

61 Hz

Qts

0.37

Vas

4.7 L

5.5 T·m

Xmax

2.5 mm

Sensitivity

85.9 dB

Power

30 W

Dayton AudioDA115-8

£18.69 · 40% less

Fs60 Hz –

Qts0.41 +11%

Vas4.4 L −6%

BL5.7 T·m +4%

Xmax2.5 mm –

Sensitivity84.9 dB −1

Dayton AudioDSA90-8

£20.18 · 35% less

Fs67 Hz +9%

Qts0.37 –

Vas2.3 L −52%

BL4.6 T·m −16%

Xmax2.5 mm –

Sensitivity83.8 dB −2.1

Dayton AudioDS115-8

£20.18 · 35% less

Fs55 Hz −10%

Qts0.38 –

Vas4.3 L −8%

BL5.9 T·m +7%

Xmax4.1 mm +64%

Sensitivity84 dB −1.9

Dayton AudioRS125-8

£37.39 · 20% more

Fs59 Hz –

Qts0.34 −8%

Vas4.8 L –

BL5.7 T·m +3%

Xmax4 mm +60%

Sensitivity85.8 dB –

Sica4 L1 1 SL

£38.93 · 25% more

Fs120 Hz +97%

Qts0.36 –

Vas1.2 L −74%

BL6.2 T·m +12%

Xmax2.5 mm –

Sensitivity88.8 dB +2.9

SB AcousticsSB12NRXF25-8

£45.28 · 45% more

Fs63 Hz +3%

Qts0.42 +14%

Vas4.2 L −11%

BL5.5 T·m –

Xmax5 mm +100%

Sensitivity85.6 dB –

WavecorWF118WA08

£47.13 · 51% more

Fs58 Hz −5%

Qts0.42 +14%

Vas4.9 L +4%

BL5.8 T·m +5%

Xmax4 mm +60%

Sensitivity85.3 dB −0.6

Tang BandW4-1052SDF

£47.37 · 52% more

Fs70 Hz +15%

Qts0.42 +14%

Vas5.2 L +11%

BL4.1 T·m −25%

Xmax2.6 mm +4%

Sensitivity87.9 dB +2

SB AcousticsSB12NRX25-8

£51.87 · 67% more

Fs57 Hz −7%

Qts0.37 –

Vas5.3 L +13%

BL5.4 T·m –

Xmax5 mm +100%

Sensitivity85.8 dB –

SB AcousticsSB12MNRX25-4

£52.29 · 68% more

Fs58 Hz −5%

Qts0.37 –

Vas5.5 L +17%

BL3.7 T·m −33%

Xmax2.3 mm −10%

Sensitivity86.1 dB –

WavecorWF118WA02

£52.36 · 68% more

Fs65 Hz +7%

Qts0.44 +19%

Vas4.3 L −9%

BL5.8 T·m +5%

Xmax3 mm +20%

Sensitivity86.1 dB –

Tang BandW4-1320SIF

£57.77 · 85% more

Fs75 Hz +23%

Qts0.36 –

Vas5.2 L +11%

BL5.3 T·m −3%

Xmax3 mm +20%

Sensitivity89.2 dB +3.3

Tang BandW4-2142

£57.77 · 85% more

Fs60 Hz –

Qts0.33 −11%

Vas6.4 L +36%

BL5.4 T·m –

Xmax2.4 mm −4%

Sensitivity87.5 dB +1.6

Tang BandW4-2417

£64.39 · 107% more

Fs65 Hz +7%

Qts0.44 +19%

Vas4.6 L –

BL5.4 T·m –

Xmax2.5 mm –

Sensitivity85.8 dB –

Tang BandW4-2414

£66.90 · 115% more

Fs65 Hz +7%

Qts0.40 +8%

Vas3.9 L −18%

BL5.5 T·m –

Xmax2.5 mm –

Sensitivity85.6 dB –

Tang BandW4-1337SDF

£71.17 · 128% more

Fs70 Hz +15%

Qts0.34 −8%

Vas5.6 L +19%

BL5.3 T·m −3%

Xmax2.5 mm –

Sensitivity88.9 dB +3

WavecorWF118WA01

£76.45 · 145% more

Fs64 Hz +5%

Qts0.36 –

Vas4.3 L −9%

BL4.6 T·m −16%

Xmax3 mm +20%

Sensitivity86.8 dB +0.9

Scanspeak10F/8424G00

£83.73 · 169% more

Fs90 Hz +48%

Qts0.37 –

Vas2.1 L −55%

BL4.8 T·m −13%

Xmax2.6 mm +4%

Sensitivity87.8 dB +1.9

Tang BandW5-2143

£113.04 · 263% more

Fs55 Hz −10%

Qts0.38 –

Vas19 L +304%

BL5.4 T·m –

Xmax2.5 mm –

Sensitivity90.7 dB +4.8

VisatonTI 100

£154.93 · 397% more

Fs62 Hz –

Qts0.41 +11%

Vas5.7 L +21%

BL5.0 T·m −9%

Xmax2.3 mm −10%

Sensitivity86.9 dB +1

SEASE0044-08S W12CY003

£200.91 · 545% more

Fs60 Hz –

Qts0.36 –

Vas4 L −15%

BL5.5 T·m –

Xmax3 mm +20%

Sensitivity85 dB −0.9

SEASE0043-06S M15CH002

£276.27 · 787% more

Fs67 Hz +10%

Qts0.40 +8%

Vas6 L +28%

BL5.3 T·m −4%

Xmax3 mm +20%

Sensitivity87.4 dB +1.5

SEASE0021-08S W12CY001

£334.88 · 975% more

Fs45 Hz −26%

Qts0.36 –

Vas6 L +28%

BL5.4 T·m –

Xmax3 mm +20%

Sensitivity83.2 dB −2.7

SEASE0070-08 W12CY004

£376.75 · 1110% more

Fs48 Hz −21%

Qts0.38 –

Vas4.6 L –

BL5.9 T·m +7%

Xmax3 mm +20%

Sensitivity83 dB −2.9

Tang BandW4-1337SD

No current price

Fs70 Hz +15%

Qts0.37 –

Vas4.9 L +3%

BL5.4 T·m –

Xmax3 mm +20%

Sensitivity87.3 dB +1.4

Tang BandW4-1320SJF

No current price

Fs75 Hz +23%

Qts0.38 –

Vas5.2 L +11%

BL5.1 T·m −7%

Xmax3 mm +20%

Sensitivity88.9 dB +3

Tang BandW4-1320SI

No current price

Fs75 Hz +23%

Qts0.38 –

Vas5.2 L +11%

BL5.1 T·m −7%

Xmax3 mm +20%

Sensitivity88.7 dB +2.8

CIARECW131

No current price

Fs65 Hz +7%

Qts0.39 +5%

Vas5.3 L +13%

BL5.7 T·m +3%

Xmax4 mm +60%

Sensitivity87.1 dB +1.2

WavecorWF120BD04

No current price

Fs62 Hz –

Qts0.37 –

Vas4.3 L −10%

BL4.5 T·m −18%

Xmax4 mm +60%

Sensitivity86 dB –

WavecorWF120BD12

No current price

Fs57 Hz −7%

Qts0.38 –

Vas3.9 L −17%

BL4.2 T·m −24%

Xmax3 mm +20%

Sensitivity84.5 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
Audiophonics Checked 26 Oct 2026 · Ships from France · 8 Ω · Source: inc VAT · 20% Import VAT and duty may apply	£31.15, the lowest price		In stock	Visit shop at Audiophonics

Best price over time

Tracked since 27 Sep

bits00 AUDIO

4-inch LF driver · SP series · 25 mm voice coil · 30 W

Monacor SP-100/8 8Ω

8 Ω · 3–7000 Hz

£31.15

Audiophonics · In stock · Ships from France · All 1 offer

Open in 00 Simulator

Fs: 61Hz
Xmax: 2.5mm
SPL: 86dB
Pe: 30W
BL: 5.5T·m
Vd: 13cm³
Qts: 0.37
Vas: 5L

See all 26 specs

Specifications

Published by Monacor

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 61Hz
Qts: 0.37
Qes: 0.44
Qms: 2.3
Vas: 4.7L
Re: 6.5Ω
Le: 0.40mH

Motor and cone

BL: 5.5T·m
Sd: 52cm²
Mms: 6g
Xmax: 2.5mm
Vd †: 13cm³
Voice coil: 25mm

Power and response

Sensitivity †: 85.9dB
Manufacturer sensitivity: 88dB
Power: 30W
Impedance: 8Ω
Range: 3–7000Hz
EBP †: 139 · Leans vented

Size and mounting

Diameter: 127mm
Cutout: 103mm
Depth: 63mm
Weight: 0.8kg

Other published values

Cms: 1.23mm/N
Power Peak: 60

Other dimensions

Mounting Depth: 62.2

Sensitivity shows 85.9 dB, calculated from the T/S values. Monacor publishes 88.0 dB, 2.1 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Monacor lists

MF · Primary · 4″

BL: 5.5T·m
Fs: 61Hz
Le: 0.40mH
Re: 6.5Ω
Sd: 52cm²
Cms: 1.23mm/N
Mms: 6g
Qes: 0.44
Qms: 2.3
Qts: 0.37
SPL: 85.9dB
Vas: 4.7L
Xmax: 2.5mm
Power: 30W
Impedance: 8Ω
Power Peak: 60
Sensitivity: 88dB
Low limit: 3Hz
Calculated sensitivity †: 85.9dB
High limit: 7000Hz
Manufacturer sensitivity: 88dB
Voice coil: 25mm
Weight: 0.8kg
Diameter: 127mm
Depth: 63mm
Mounting Depth: 62.2
Cutout: 103mm

Compare

Same-size drivers, compared with the SP-100/8. Clear differences are green when better and red when worse.

This driverSP-100/8

Best price

£31.15

61 Hz

Qts

0.37

Vas

4.7 L

5.5 T·m

Xmax

2.5 mm

Sensitivity

85.9 dB

Power

30 W

Dayton AudioDA115-8

£18.69 · 40% less

Fs60 Hz –

Qts0.41 +11%

Vas4.4 L −6%

BL5.7 T·m +4%

Xmax2.5 mm –

Sensitivity84.9 dB −1

Dayton AudioDSA90-8

£20.18 · 35% less

Fs67 Hz +9%

Qts0.37 –

Vas2.3 L −52%

BL4.6 T·m −16%

Xmax2.5 mm –

Sensitivity83.8 dB −2.1

Dayton AudioDS115-8

£20.18 · 35% less

Fs55 Hz −10%

Qts0.38 –

Vas4.3 L −8%

BL5.9 T·m +7%

Xmax4.1 mm +64%

Sensitivity84 dB −1.9

Dayton AudioRS125-8

£37.39 · 20% more

Fs59 Hz –

Qts0.34 −8%

Vas4.8 L –

BL5.7 T·m +3%

Xmax4 mm +60%

Sensitivity85.8 dB –

Sica4 L1 1 SL

£38.93 · 25% more

Fs120 Hz +97%

Qts0.36 –

Vas1.2 L −74%

BL6.2 T·m +12%

Xmax2.5 mm –

Sensitivity88.8 dB +2.9

SB AcousticsSB12NRXF25-8

£45.28 · 45% more

Fs63 Hz +3%

Qts0.42 +14%

Vas4.2 L −11%

BL5.5 T·m –

Xmax5 mm +100%

Sensitivity85.6 dB –

WavecorWF118WA08

£47.13 · 51% more

Fs58 Hz −5%

Qts0.42 +14%

Vas4.9 L +4%

BL5.8 T·m +5%

Xmax4 mm +60%

Sensitivity85.3 dB −0.6

Tang BandW4-1052SDF

£47.37 · 52% more

Fs70 Hz +15%

Qts0.42 +14%

Vas5.2 L +11%

BL4.1 T·m −25%

Xmax2.6 mm +4%

Sensitivity87.9 dB +2

SB AcousticsSB12NRX25-8

£51.87 · 67% more

Fs57 Hz −7%

Qts0.37 –

Vas5.3 L +13%

BL5.4 T·m –

Xmax5 mm +100%

Sensitivity85.8 dB –

SB AcousticsSB12MNRX25-4

£52.29 · 68% more

Fs58 Hz −5%

Qts0.37 –

Vas5.5 L +17%

BL3.7 T·m −33%

Xmax2.3 mm −10%

Sensitivity86.1 dB –

WavecorWF118WA02

£52.36 · 68% more

Fs65 Hz +7%

Qts0.44 +19%

Vas4.3 L −9%

BL5.8 T·m +5%

Xmax3 mm +20%

Sensitivity86.1 dB –

Tang BandW4-1320SIF

£57.77 · 85% more

Fs75 Hz +23%

Qts0.36 –

Vas5.2 L +11%

BL5.3 T·m −3%

Xmax3 mm +20%

Sensitivity89.2 dB +3.3

Tang BandW4-2142

£57.77 · 85% more

Fs60 Hz –

Qts0.33 −11%

Vas6.4 L +36%

BL5.4 T·m –

Xmax2.4 mm −4%

Sensitivity87.5 dB +1.6

Tang BandW4-2417

£64.39 · 107% more

Fs65 Hz +7%

Qts0.44 +19%

Vas4.6 L –

BL5.4 T·m –

Xmax2.5 mm –

Sensitivity85.8 dB –

Tang BandW4-2414

£66.90 · 115% more

Fs65 Hz +7%

Qts0.40 +8%

Vas3.9 L −18%

BL5.5 T·m –

Xmax2.5 mm –

Sensitivity85.6 dB –

Tang BandW4-1337SDF

£71.17 · 128% more

Fs70 Hz +15%

Qts0.34 −8%

Vas5.6 L +19%

BL5.3 T·m −3%

Xmax2.5 mm –

Sensitivity88.9 dB +3

WavecorWF118WA01

£76.45 · 145% more

Fs64 Hz +5%

Qts0.36 –

Vas4.3 L −9%

BL4.6 T·m −16%

Xmax3 mm +20%

Sensitivity86.8 dB +0.9

Scanspeak10F/8424G00

£83.73 · 169% more

Fs90 Hz +48%

Qts0.37 –

Vas2.1 L −55%

BL4.8 T·m −13%

Xmax2.6 mm +4%

Sensitivity87.8 dB +1.9

Tang BandW5-2143

£113.04 · 263% more

Fs55 Hz −10%

Qts0.38 –

Vas19 L +304%

BL5.4 T·m –

Xmax2.5 mm –

Sensitivity90.7 dB +4.8

VisatonTI 100

£154.93 · 397% more

Fs62 Hz –

Qts0.41 +11%

Vas5.7 L +21%

BL5.0 T·m −9%

Xmax2.3 mm −10%

Sensitivity86.9 dB +1

SEASE0044-08S W12CY003

£200.91 · 545% more

Fs60 Hz –

Qts0.36 –

Vas4 L −15%

BL5.5 T·m –

Xmax3 mm +20%

Sensitivity85 dB −0.9

SEASE0043-06S M15CH002

£276.27 · 787% more

Fs67 Hz +10%

Qts0.40 +8%

Vas6 L +28%

BL5.3 T·m −4%

Xmax3 mm +20%

Sensitivity87.4 dB +1.5

SEASE0021-08S W12CY001

£334.88 · 975% more

Fs45 Hz −26%

Qts0.36 –

Vas6 L +28%

BL5.4 T·m –

Xmax3 mm +20%

Sensitivity83.2 dB −2.7

SEASE0070-08 W12CY004

£376.75 · 1110% more

Fs48 Hz −21%

Qts0.38 –

Vas4.6 L –

BL5.9 T·m +7%

Xmax3 mm +20%

Sensitivity83 dB −2.9

Tang BandW4-1337SD

No current price

Fs70 Hz +15%

Qts0.37 –

Vas4.9 L +3%

BL5.4 T·m –

Xmax3 mm +20%

Sensitivity87.3 dB +1.4

Tang BandW4-1320SJF

No current price

Fs75 Hz +23%

Qts0.38 –

Vas5.2 L +11%

BL5.1 T·m −7%

Xmax3 mm +20%

Sensitivity88.9 dB +3

Tang BandW4-1320SI

No current price

Fs75 Hz +23%

Qts0.38 –

Vas5.2 L +11%

BL5.1 T·m −7%

Xmax3 mm +20%

Sensitivity88.7 dB +2.8

CIARECW131

No current price

Fs65 Hz +7%

Qts0.39 +5%

Vas5.3 L +13%

BL5.7 T·m +3%

Xmax4 mm +60%

Sensitivity87.1 dB +1.2

WavecorWF120BD04

No current price

Fs62 Hz –

Qts0.37 –

Vas4.3 L −10%

BL4.5 T·m −18%

Xmax4 mm +60%

Sensitivity86 dB –

WavecorWF120BD12

No current price

Fs57 Hz −7%

Qts0.38 –

Vas3.9 L −17%

BL4.2 T·m −24%

Xmax3 mm +20%

Sensitivity84.5 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
Audiophonics Checked 26 Oct 2026 · Ships from France · 8 Ω · Source: inc VAT · 20% Import VAT and duty may apply	£31.15, the lowest price		In stock	Visit shop at Audiophonics

Best price over time

Tracked since 27 Sep