PeerlessSDS-100F25CP09-04
£13.03 · 8% more, worseFs80 Hz –
Qts0.53 –
Vas2.0 L +9%
BL4.7 T·m –
Xmax5.0 mm +80%, better
Sensitivity84.4 dB +0.7
4-inch LF driver · 25 mm voice coil · 30 W
REDCATT 4FR-1 4Ω
4 Ω
No price for delivery to the UK
- Fs
- 79Hz
- Xmax
- 2.8mm
- SPL
- 84dB
- Pe
- 30W
- BL
- 4.8T·m
- Vd
- 14cm³
- Qts
- 0.52
- Vas
- 2L
REDCATT 4FR-1 is a 4-inch 4 ohm LF driver rated at 30 W RMS. The validated T/S data includes Fs 79 Hz, Qts 0.52, Vas 1.8 L, Xmax 2.8 mm, sensitivity 83.7 dB, plus 14 cm³ Vd and 130 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 £12.06.
The published T/S values agree with each other
Thiele/Small
- Fs
- 79Hz
- Qts
- 0.52
- Qes
- 0.61
- Qms
- 3.5
- Vas
- 1.8L
- Re
- 3.5Ω
- Le
- 0.09mH
Motor and cone
- BL
- 4.8T·m
- Sd
- 50cm²
- Mms
- 8g
- Xmax
- 2.8mm
- Vd †
- 14cm³
- Voice coil
- 25mm
Power and response
- Sensitivity †
- 83.7dB
- Manufacturer sensitivity
- 84.1dB
- Power
- 30W
- Impedance
- 4Ω
- EBP †
- 130 · Leans vented
Size and mounting
- Diameter
- 105.5mm
- Cutout
- 93.6mm
- Bolt circle
- 106mm
- Weight
- 0.8kg
Other published values
- Xmech
- 7.8
- Power Peak
- 120
Other dimensions
- Mounting Depth
- 56
† Calculated by bits from the published values
What this validation status means
Everything else REDCATT lists
LF · Primary · 4″
- BL
- 4.8T·m
- Fs
- 79Hz
- Le
- 0.09mH
- Re
- 3.5Ω
- Sd
- 50cm²
- Mms
- 8g
- Qes
- 0.61
- Qms
- 3.5
- Qts
- 0.52
- SPL
- 83.7dB
- Vas
- 1.8L
- Xmax
- 2.8mm
- Xmech
- 7.8
- Power
- 30W
- Impedance
- 4Ω
- Power Peak
- 120
- Sensitivity
- 84.1dB
- Calculated sensitivity †
- 83.7dB
- Manufacturer sensitivity
- 84.1dB
- Voice coil
- 25mm
- Weight
- 0.8kg
- Diameter
- 105.5mm
- Mounting Depth
- 56
- Cutout
- 93.6mm
- Bolt circle
- 106mm
02
Compare
Same-size drivers, compared with the 4FR-1. Clear differences are green when better and red when worse.
This driver4FR-1
Best price
£12.06
Fs
79 Hz
Qts
0.52
Vas
1.8 L
BL
4.8 T·m
Xmax
2.8 mm
Sensitivity
83.7 dB
Power
30 W
VisatonFRS 8 M
£13.05 · 8% more, worseFs125 Hz +58%, worse
Qts0.49 −6%
Vas1.1 L −39%, better
BL4 T·m −17%, worse
Xmax2.5 mm −11%, worse
Sensitivity87.7 dB +4, better
VisatonFR 10
£13.60 · 13% more, worseFs90 Hz +14%, worse
Qts0.54 +4%
Vas2.3 L +28%, worse
BL4.6 T·m −4%
Xmax4 mm +43%, better
Sensitivity85.8 dB +2.1, better
Dayton AudioDS90-8
£16.61 · 38% more, worseFs81 Hz +3%
Qts0.43 −17%, better
Vas1.3 L −27%, better
BL4.8 T·m –
Xmax2.5 mm −11%, worse
Sensitivity83.3 dB –
REDCATT4FR-2
£16.77 · 39% more, worseFs80 Hz –
Qts0.51 –
Vas2.0 L +9%
BL4.6 T·m −5%
Xmax0.35 mm −88%, worse
Sensitivity84.4 dB +0.7
Sica3.5 F 1 CS
£16.81 · 39% more, worseFs107 Hz +35%, worse
Qts0.57 +10%
Vas1.4 L −22%, better
BL4.2 T·m −12%, worse
Xmax1.5 mm −46%, worse
Sensitivity86.4 dB +2.7, better
Sica3.5 H 1 CS
£18.59 · 54% more, worseFs85 Hz +8%
Qts0.53 –
Vas1.8 L –
BL4.8 T·m –
Xmax2.5 mm −11%, worse
Sensitivity84.9 dB +1.2
MonacorSPX-32M
£18.59 · 54% more, worseFs110 Hz +39%, worse
Qts0.56 +8%
Vas1.6 L −11%, better
BL3.7 T·m −23%, worse
Xmax1.1 mm −61%, worse
Sensitivity87.5 dB +3.8, better
Dayton AudioDMA80-8
£19.35 · 60% more, worseFs98 Hz +24%, worse
Qts0.47 −10%
Vas1.1 L −37%, better
BL5.1 T·m +6%
Xmax2.5 mm −11%, worse
Sensitivity84.4 dB +0.7
Sica5 D 1 CS
£19.85 · 65% more, worseFs79 Hz –
Qts0.52 –
Vas5.5 L +206%, worse
BL5.7 T·m +19%, better
Xmax3 mm +7%
Sensitivity88.7 dB +5, better
FaitalPRO4FE32
£21.94 · 82% more, worseFs100 Hz +27%, worse
Qts0.61 +17%, worse
Vas2.3 L +28%, worse
BL4.8 T·m –
Xmax2.7 mm –
Sensitivity87.2 dB +3.5, better
Sica3.5 L 1 SL
£23.57 · 95% more, worseFs108 Hz +37%, worse
Qts0.57 +10%
Vas1.4 L −22%, better
BL4.3 T·m −11%, worse
Xmax1.5 mm −46%, worse
Sensitivity86.6 dB +2.9, better
FaitalPRO4FE42
£28.64 · 137% more, worseFs110 Hz +39%, worse
Qts0.47 −10%
Vas1.9 L +6%
BL6 T·m +25%, better
Xmax2.8 mm –
Sensitivity89.1 dB +5.4, better
Dayton AudioRS100P-8
£30.21 · 150% more, worseFs96 Hz +21%, worse
Qts0.54 +4%
Vas1.8 L –
BL4.0 T·m −18%, worse
Xmax3.7 mm +32%, better
Sensitivity85.5 dB +1.8
CIAREPA100
£31.26 · 159% more, worseFs100 Hz +27%, worse
Qts0.59 +13%, worse
Vas2.5 L +39%, worse
BL4.4 T·m −9%
Xmax2.5 mm −11%, worse
Sensitivity87.6 dB +3.9, better
Tang BandW3-315E
£32.48 · 169% more, worseFs100 Hz +27%, worse
Qts0.52 –
Vas1.7 L −7%
BL3.9 T·m −19%, worse
Xmax1.3 mm −55%, worse
Sensitivity86.7 dB +3, better
WavecorWF095WA02
£41.56 · 244% more, worseFs86 Hz +9%
Qts0.62 +19%, worse
Vas1.6 L −11%, better
BL3.6 T·m −25%, worse
Xmax2.7 mm −4%
Sensitivity83.7 dB –
EminenceALPHA 4-4
£42.77 · 255% more, worseFs120 Hz +52%, worse
Qts0.63 +21%, worse
Vas1.8 L –
BL4.1 T·m −14%, worse
Xmax2.6 mm −7%
Sensitivity88.4 dB +4.7, better
Dayton AudioRS125T-8
£47.65 · 295% more, worseFs76 Hz −4%
Qts0.50 −4%
Vas3.6 L +98%, worse
BL5.0 T·m +5%
Xmax2.8 mm –
Sensitivity86.1 dB +2.4, better
Scanspeak10F/8414G10
£73.39 · 508% more, worseFs100 Hz +27%, worse
Qts0.51 –
Vas1.6 L −13%, better
BL4.3 T·m −10%, worse
Xmax2.3 mm −18%, worse
Sensitivity85.9 dB +2.2, better
WavecorWF118WA06
£83.64 · 593% more, worseFs66 Hz −16%, better
Qts0.55 +6%
Vas3.5 L +94%, worse
BL5.6 T·m +17%, better
Xmax3 mm +7%
Sensitivity84.3 dB +0.6
Dayton AudioDMA90-8
No current priceFs94 Hz +19%, worse
Qts0.57 +10%
Vas1.7 L −6%
BL4.7 T·m –
Xmax2.5 mm −11%, worse
Sensitivity84.9 dB +1.2
WavecorSW084OM02
No current priceFs77 Hz –
Qts0.53 –
Vas1.7 L −6%
BL4.6 T·m −5%
Xmax4.5 mm +61%, better
Sensitivity83.4 dB –
HiViB4N
No current priceFs56 Hz −29%, better
Qts0.52 –
Vas4.5 L +150%, worse
BL5.1 T·m +6%
Xmax3.2 mm +14%, better
Sensitivity83 dB −0.7
VisatonFRS 8 M - 8 Ohm
No current priceFs125 Hz +58%, worse
Qts0.49 −6%
Vas1.1 L −39%, better
BL4 T·m −17%, worse
Xmax2.5 mm −11%, worse
Sensitivity87.7 dB +4, better
Tang BandW3-1053SC
No current priceFs100 Hz +27%, worse
Qts0.52 –
Vas1.8 L –
BL3.7 T·m −23%, worse
Xmax0.75 mm −73%, worse
Sensitivity87 dB +3.3, better
Tang BandW4-2356
No current priceFs70 Hz −11%, better
Qts0.45 −13%, better
Vas4.0 L +121%, worse
BL4.9 T·m –
Xmax3 mm +7%
Sensitivity85.7 dB +2, better
PeerlessSDS-100F25CP18-04
No current priceFs84 Hz +6%
Qts0.59 +13%, worse
Vas1.9 L +3%
BL4.5 T·m −6%
Xmax5.0 mm +80%, better
Sensitivity84.3 dB +0.6
Tang BandW5-1611SA
No current priceFs60 Hz −24%, better
Qts0.44 −15%, better
Vas13.0 L +623%, worse
BL5.2 T·m +8%
Xmax3 mm +7%
Sensitivity88.7 dB +5, better
Dayton AudioCFC120-8
No current priceFs60 Hz −24%, better
Qts0.56 +8%
Vas4.6 L +156%, worse
BL5.1 T·m +7%
Xmax2.5 mm −11%, worse
Sensitivity83.6 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
None of the shops we track lists delivery to the UK at checkout.