FaitalPRO3FE25
£8.68 · 35% less, betterFs110 Hz +47%, worse
Qts0.66 –
Vas1.3 L −68%, better
BL3.6 T·m −12%, worse
Xmax1.8 mm +83%, better
Sensitivity85.4 dB +1.1
4-inch LF driver · SPM series · 20 mm voice coil · 25 W
Monacor SPM-100/8 8Ω
8 Ω · 3–18000 Hz
£13.40
20%LTT · Ships from Germany · All 3 offers
- Fs
- 75Hz
- Xmax
- 1mm
- SPL
- 84dB
- Pe
- 25W
- BL
- 4.1T·m
- Vd
- 6cm³
- Qts
- 0.67
- Vas
- 4L
Monacor SPM-100/8 is a 4-inch 8 ohm LF driver rated at 25 W RMS. The validated T/S data includes Fs 75 Hz, Qts 0.67, Vas 4 L, Xmax 1 mm, sensitivity 84.3 dB, plus 6 cm³ Vd and 74 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 £13.40.
The published T/S values agree with each other
Thiele/Small
- Fs
- 75Hz
- Qts
- 0.67
- Qes
- 1.01
- Qms
- 2.0
- Vas
- 4L
- Re
- 7.2Ω
- Le
- 0.40mH
Motor and cone
- BL
- 4.1T·m
- Sd
- 57cm²
- Mms
- 4g
- Xmax
- 1mm
- Vd †
- 6cm³
- Voice coil
- 20mm
Power and response
- Sensitivity †
- 84.3dB
- Manufacturer sensitivity
- 86dB
- Power
- 25W
- Impedance
- 8Ω
- Range
- 3–18000Hz
- EBP †
- 74 · Sealed or vented
Size and mounting
- Diameter
- 102mm
- Cutout
- 94mm
- Depth
- 58mm
- Weight
- 0.54kg
Other published values
- Cms
- 0.80mm/N
- Power Peak
- 50
Other dimensions
- Mounting Depth
- 52.5
Sensitivity shows 84.3 dB, calculated from the T/S values. Monacor publishes 86.0 dB, 1.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Monacor lists
MF · Primary · 4″
- BL
- 4.1T·m
- Fs
- 75Hz
- Le
- 0.40mH
- Re
- 7.2Ω
- Sd
- 57cm²
- Cms
- 0.80mm/N
- Mms
- 4g
- Qes
- 1.01
- Qms
- 2.0
- Qts
- 0.67
- SPL
- 84.3dB
- Vas
- 4L
- Xmax
- 1mm
- Power
- 25W
- Impedance
- 8Ω
- Power Peak
- 50
- Sensitivity
- 86dB
- Low limit
- 3Hz
- Calculated sensitivity †
- 84.3dB
- High limit
- 18000Hz
- Manufacturer sensitivity
- 86dB
- Voice coil
- 20mm
- Weight
- 0.54kg
- Diameter
- 102mm
- Depth
- 58mm
- Mounting Depth
- 52.5
- Cutout
- 94mm
02
Compare
Same-size drivers, compared with the SPM-100/8. Clear differences are green when better and red when worse.
This driverSPM-100/8
Best price
£13.40
Fs
75 Hz
Qts
0.67
Vas
4 L
BL
4.1 T·m
Xmax
1 mm
Sensitivity
84.3 dB
Power
25 W
GRS4SMP-8
£11.96 · 11% less, betterFs63 Hz −16%, better
Qts0.65 –
Vas4 L –
BL4.2 T·m –
Xmax4 mm +300%, better
Sensitivity82.8 dB −1.5
REDCATT41FR
£12.52 · 7% less, betterFs134 Hz +79%, worse
Qts0.75 +12%, worse
Vas1.3 L −68%, better
BL4.8 T·m +17%, better
Xmax1.1 mm +10%, better
Sensitivity87.9 dB +3.6, better
MonacorSPM-116/8
£13.40 · Same priceFs75 Hz –
Qts0.57 −15%, better
Vas4.5 L +13%, worse
BL4.2 T·m –
Xmax1.5 mm +50%, better
Sensitivity85.7 dB +1.4
VisatonFR 10
£13.48 · Same priceFs90 Hz +20%, worse
Qts0.67 –
Vas2.3 L −43%, better
BL4.6 T·m +12%, better
Xmax1.5 mm +50%, better
Sensitivity84.5 dB –
PeerlessGBS-85N25PR07-04
£14.59 · 9% more, worseFs130 Hz +73%, worse
Qts0.70 +4%
Vas0.47 L −88%, better
BL4.5 T·m +9%
Xmax3.0 mm +195%, better
Sensitivity83.1 dB −1.2
PRV Audio4MR60-4
£14.89 · 11% more, worseFs90 Hz +20%, worse
Qts0.68 –
Vas3.3 L −19%, better
BL3.4 T·m −17%, worse
Xmax2.9 mm +187%, better
Sensitivity87 dB +2.7, better
VisatonSL 87 FE
£15.07 · 13% more, worseFs120 Hz +60%, worse
Qts0.65 –
Vas1.5 L −62%, better
BL4.0 T·m −4%
Xmax1.8 mm +75%, better
Sensitivity87.1 dB +2.8, better
REDCATT5FR
£15.83 · 18% more, worseFs92 Hz +23%, worse
Qts0.69 –
Vas3.8 L −5%
BL6.3 T·m +54%, better
Xmax2 mm +100%, better
Sensitivity88.1 dB +3.8, better
FaitalPRO4FE35
£16.58 · 24% more, worseFs100 Hz +33%, worse
Qts0.83 +24%, worse
Vas2.4 L −40%, better
BL3.9 T·m −5%
Xmax2.7 mm +173%, better
Sensitivity85.7 dB +1.4
Dayton AudioPC105-8
£16.70 · 25% more, worseFs85 Hz +13%, worse
Qts0.64 −4%
Vas3.4 L −15%, better
BL4.1 T·m –
Xmax2 mm +100%, better
Sensitivity85.7 dB +1.4
MonacorSPX-30M
£20.10 · 50% more, worseFs100 Hz +33%, worse
Qts0.71 +6%
Vas1.8 L −55%, better
BL3.0 T·m −26%, worse
Xmax1.1 mm +10%, better
Sensitivity85.1 dB +0.8
SB AcousticsSB12PFC25-8
£21.98 · 64% more, worseFs64 Hz −15%, better
Qts0.56 −16%, better
Vas4.3 L +7%
BL4.5 T·m +10%
Xmax5 mm +400%, better
Sensitivity84.4 dB –
Dayton AudioDMA105-8
£22.10 · 65% more, worseFs72 Hz −4%
Qts0.63 −6%
Vas4.2 L +6%
BL4.5 T·m +10%
Xmax2.5 mm +150%, better
Sensitivity84.8 dB +0.5
PeerlessHDS-P830992
£24.12 · 80% more, worseFs120 Hz +60%, worse
Qts0.66 –
Vas1.4 L −65%, better
BL4.8 T·m +18%, better
Xmax5.0 mm +398%, better
Sensitivity86.1 dB +1.8
LavoceFSN030.71
£24.69 · 84% more, worseFs134 Hz +79%, worse
Qts0.67 –
Vas1.0 L −74%, better
BL3.8 T·m −7%
Xmax2.1 mm +110%, better
Sensitivity87.3 dB +3, better
Dayton AudioND90-8
£25.87 · 93% more, worseFs71 Hz −6%
Qts0.65 –
Vas1.8 L −56%, better
BL4.3 T·m +5%
Xmax4 mm +300%, better
Sensitivity81.2 dB −3.1, worse
VisatonSC 13
£26.75 · 100% more, worseFs78 Hz +4%
Qts0.71 +6%
Vas7.4 L +85%, worse
BL4.2 T·m –
Xmax0.75 mm −25%, worse
Sensitivity87.8 dB +3.5, better
CIAREHM100
£27.63 · 106% more, worseFs160 Hz +113%, worse
Qts0.70 +4%
Vas1.1 L −73%, better
BL5.1 T·m +24%, better
Xmax2.2 mm +120%, better
Sensitivity88.7 dB +4.4, better
LavoceCSF051.21
£29.17 · 118% more, worseFs110 Hz +47%, worse
Qts0.64 −4%
Vas4.1 L –
BL5.9 T·m +44%, better
Xmax3.4 mm +240%, better
Sensitivity90.7 dB +6.4, better
VisatonFRS 10 WP
£47.46 · 254% more, worseFs190 Hz +153%, worse
Qts0.98 +46%, worse
Vas1.9 L −53%, better
BL4.3 T·m +5%
Xmax1 mm –
Sensitivity92.7 dB +8.4, better
VisatonB 80
£72.39 · 440% more, worseFs110 Hz +47%, worse
Qts0.63 −6%
Vas1.8 L −55%, better
BL4.2 T·m –
Xmax2.2 mm +120%, better
Sensitivity87.4 dB +3.1, better
SEASH1304-08 MCA12RC
£76.51 · 471% more, worseFs68 Hz −9%
Qts0.56 −16%, better
Vas5 L +25%, worse
BL4.2 T·m –
Xmax0.9 mm −10%
Sensitivity85.3 dB +1
WavecorWF118OM02
No current priceFs61 Hz −19%, better
Qts0.65 –
Vas5.5 L +38%, worse
BL4.2 T·m –
Xmax1.9 mm +90%, better
Sensitivity84.5 dB –
CIARECXE134
No current priceFs84 Hz +12%, worse
Qts0.78 +16%, worse
Vas5.2 L +30%, worse
BL3.3 T·m −19%, worse
Xmax2.1 mm +110%, better
Sensitivity87 dB +2.7, better
JensenMOD5-30-8
No current priceFs125 Hz +67%, worse
Qts0.84 +25%, worse
Vas3.3 L −18%, better
BL4.6 T·m +12%, better
Xmax0.5 mm −50%, worse
Sensitivity90.3 dB +6, better
Dayton AudioCFC100-8
No current priceFs107 Hz +43%, worse
Qts0.78 +16%, worse
Vas0.75 L −81%, better
BL3.9 T·m −5%
Xmax2.5 mm +150%, better
Sensitivity81.6 dB −2.7, worse
PeerlessTC10FG00-04
No current priceFs160 Hz +113%, worse
Qts0.65 –
Vas1.7 L −57%, better
BL3.4 T·m −18%, worse
Xmax2.7 mm +171%, better
Sensitivity90.9 dB +6.6, better
KartesianWIB120_VHE
No current priceFs68 Hz −9%
Qts0.56 −16%, better
Vas4.4 L +10%, worse
BL4.0 T·m –
Xmax4 mm +300%, better
Sensitivity86 dB +1.7
EminenceALPHA 4-4
No current priceFs120 Hz +60%, worse
Qts0.63 −6%
Vas1.8 L −56%, better
BL4.1 T·m –
Xmax2.6 mm +160%, better
Sensitivity88.4 dB +4.1, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
LTT Import VAT and duty may apply | £13.40, the lowest price | Stock not listed | Visit shop at LTT | |
Audiophonics Import VAT and duty may apply | £16.66 | 24% above the lowest price | In stock | Visit shop at Audiophonics |
Best price over time
Tracked since 27 Sep