REDCATT4FR-1
£11.96 · 75% less, betterFs79 Hz +4%
Qts0.52 +4%
Vas1.8 L −49%, better
BL4.8 T·m −5%
Xmax2.8 mm –
Sensitivity83.7 dB −2.4, worse
5-inch LF driver · 30 W
Dayton Audio RS125T-8 8Ω
8 Ω · 75–9200 Hz
£47.22
RumoH · Ships from Netherlands · All 1 offer
- Fs
- 76Hz
- Xmax
- 2.8mm
- SPL
- 86dB
- Pe
- 30W
- BL
- 5.0T·m
- Vd
- 15cm³
- Qts
- 0.50
- Vas
- 4L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 5 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
15 degrees
Frequency response
233 plotted pointsMedium confidence614 selected pixels of 853 - Trace datasheet-response-trace-poc/v1
30 degrees
Frequency response
218 plotted pointsMedium confidence447 selected pixels of 754 - Trace datasheet-response-trace-poc/v1
45 degrees
Frequency response
185 plotted pointsMedium confidence427 selected pixels of 1,172 - Trace datasheet-response-trace-poc/v1
on-axis
Frequency response
240 plotted pointsMedium confidence1,252 selected pixels of 1,252 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,249 selected pixels of 1,249
Dayton Audio RS125T-8 is a 5-inch 8 ohm LF driver rated at 30 W RMS. The validated T/S data includes Fs 76 Hz, Qts 0.50, Vas 3.6 L, Xmax 2.8 mm, sensitivity 86.1 dB, plus 15 cm³ Vd and 125 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 £47.22.
The published T/S values agree with each other
Thiele/Small
- Fs
- 76Hz
- Qts
- 0.50
- Qes
- 0.61
- Qms
- 2.6
- Vas
- 3.6L
- Re
- 6.4Ω
- Le
- 0.58mH
Motor and cone
- BL
- 5.0T·m
- Sd
- 54cm²
- Mms
- 5g
- Xmax
- 2.8mm
- Vd †
- 15cm³
Power and response
- Sensitivity †
- 86.1dB
- Manufacturer sensitivity
- 86.9dB
- Power
- 30W
- Impedance
- 8Ω
- Range
- 75–9200Hz
- EBP †
- 125 · Leans vented
Size and mounting
- Diameter
- 125.5mm
- Cutout
- 94mm
- Depth
- 55mm
- Weight
- 0.9kg
Other published values
- Cms
- 0.87mm/N
- Power Peak
- 60
† Calculated by bits from the published values
What this validation status means
Everything else Dayton Audio lists
LF · Primary · 5″
- BL
- 5.0T·m
- Fs
- 76Hz
- Le
- 0.58mH
- Re
- 6.4Ω
- Sd
- 54cm²
- Cms
- 0.87mm/N
- Mms
- 5g
- Qes
- 0.61
- Qms
- 2.6
- Qts
- 0.50
- SPL
- 86.1dB
- Vas
- 3.6L
- Xmax
- 2.8mm
- Power
- 30W
- Impedance
- 8Ω
- Power Peak
- 60
- Sensitivity
- 86.9dB
- Low limit
- 75Hz
- Calculated sensitivity †
- 86.1dB
- High limit
- 9200Hz
- Manufacturer sensitivity
- 86.9dB
- Weight
- 0.9kg
- Diameter
- 125.5mm
- Depth
- 55mm
- Cutout
- 94mm
02
Compare
Same-size drivers, compared with the RS125T-8. Clear differences are green when better and red when worse.
This driverRS125T-8
Best price
£47.22
Fs
76 Hz
Qts
0.50
Vas
3.6 L
BL
5.0 T·m
Xmax
2.8 mm
Sensitivity
86.1 dB
Power
30 W
PeerlessSDS-P830855
£14.03 · 70% less, betterFs66 Hz −13%, better
Qts0.48 −4%
Vas3.3 L −8%
BL5.2 T·m +4%
Xmax5.0 mm +79%, better
Sensitivity84.4 dB −1.7
Dayton AudioPA130-8
£17.94 · 62% less, betterFs83 Hz +10%
Qts0.51 –
Vas4.0 L +11%, worse
BL6.4 T·m +28%, better
Xmax2 mm −29%, worse
Sensitivity87.8 dB +1.7
Sica5 D 1 CS
£19.68 · 58% less, betterFs79 Hz +4%
Qts0.52 +4%
Vas5.5 L +54%, worse
BL5.7 T·m +14%, better
Xmax3 mm +7%
Sensitivity88.7 dB +2.6, better
Dayton AudioDA135-8
£20.93 · 56% less, betterFs57 Hz −26%, better
Qts0.54 +8%
Vas7.4 L +108%, worse
BL5.3 T·m +6%
Xmax3 mm +7%
Sensitivity85 dB −1.1
FaitalPRO4FE32
£21.94 · 54% less, betterFs100 Hz +32%, worse
Qts0.61 +22%, worse
Vas2.3 L −35%, better
BL4.8 T·m −5%
Xmax2.7 mm –
Sensitivity87.2 dB +1.1
FaitalPRO4FE42
£28.64 · 39% less, betterFs110 Hz +45%, worse
Qts0.47 −6%
Vas1.9 L −47%, better
BL6 T·m +19%, better
Xmax2.8 mm –
Sensitivity89.1 dB +3, better
Dayton AudioDMA105-4
£30.10 · 36% less, betterFs73 Hz −4%
Qts0.51 –
Vas4.2 L +19%, worse
BL3.4 T·m −33%, worse
Xmax2.5 mm −11%, worse
Sensitivity86.2 dB –
Dayton AudioRS125P-8
£37.39 · 21% less, betterFs70 Hz −8%
Qts0.44 −12%, better
Vas4.0 L +12%, worse
BL5.1 T·m –
Xmax4 mm +43%, better
Sensitivity86.1 dB –
WavecorWF118WA02
£52.36 · 11% more, worseFs65 Hz −14%, better
Qts0.44 −12%, better
Vas4.3 L +21%, worse
BL5.8 T·m +15%, better
Xmax3 mm +7%
Sensitivity86.1 dB –
Tang BandW4-2417
£64.39 · 36% more, worseFs65 Hz −14%, better
Qts0.44 −12%, better
Vas4.6 L +28%, worse
BL5.4 T·m +6%
Xmax2.5 mm −11%, worse
Sensitivity85.8 dB –
Sica5 N 1.5 PL
£65.31 · 38% more, worseFs111 Hz +46%, worse
Qts0.56 +12%, worse
Vas3 L −16%, better
BL6.2 T·m +23%, better
Xmax3 mm +7%
Sensitivity89.5 dB +3.4, better
Tang BandW4-2414
£66.90 · 42% more, worseFs65 Hz −14%, better
Qts0.40 −20%, better
Vas3.9 L +9%
BL5.5 T·m +9%
Xmax2.5 mm −11%, worse
Sensitivity85.6 dB −0.5
WavecorWF118WA06
£82.89 · 76% more, worseFs66 Hz −13%, better
Qts0.55 +10%, worse
Vas3.5 L –
BL5.6 T·m +11%, better
Xmax3 mm +7%
Sensitivity84.3 dB −1.8
WavecorWF118WA05
£82.89 · 76% more, worseFs65 Hz −14%, better
Qts0.46 −8%
Vas3.5 L –
BL4.3 T·m −15%, worse
Xmax3 mm +7%
Sensitivity85 dB −1.1
WavecorWF120BD14
£133.13 · 182% more, worseFs58 Hz −24%, better
Qts0.46 −8%
Vas3.9 L +10%
BL5.3 T·m +5%
Xmax3 mm +7%
Sensitivity83.8 dB −2.3, worse
Tang BandW6-2144
£141.51 · 200% more, worseFs45 Hz −41%, better
Qts0.45 −10%
Vas34.6 L +872%, worse
BL5.5 T·m +8%
Xmax3 mm +7%
Sensitivity89.1 dB +3, better
Tang BandW4-2356
No current priceFs70 Hz −8%
Qts0.45 −10%
Vas4.0 L +12%, worse
BL4.9 T·m –
Xmax3 mm +7%
Sensitivity85.7 dB –
WavecorWF120BD13
No current priceFs59 Hz −22%, better
Qts0.47 −6%
Vas3.8 L +7%
BL5.3 T·m +5%
Xmax3 mm +7%
Sensitivity84 dB −2.1, worse
HiViB4N
No current priceFs56 Hz −26%, better
Qts0.52 +4%
Vas4.5 L +26%, worse
BL5.1 T·m –
Xmax3.2 mm +14%, better
Sensitivity83 dB −3.1, worse
Dayton AudioE150MR-4
No current priceFs75 Hz –
Qts0.52 +4%
Vas7.4 L +108%, worse
BL4.9 T·m –
Xmax2.7 mm −4%
Sensitivity89.1 dB +3, better
WavecorWF120BD07
No current priceFs72 Hz −6%
Qts0.51 –
Vas3.3 L −9%
BL5.5 T·m +9%
Xmax4 mm +43%, better
Sensitivity85.3 dB −0.8
Dayton AudioCFC120-8
No current priceFs60 Hz −21%, better
Qts0.56 +12%, worse
Vas4.6 L +29%, worse
BL5.1 T·m –
Xmax2.5 mm −11%, worse
Sensitivity83.6 dB −2.5, worse
WavecorMR120BD04
No current priceFs72 Hz −5%
Qts0.55 +10%, worse
Vas3.2 L −10%, better
BL5.2 T·m +3%
Xmax1.5 mm −46%, worse
Sensitivity85.1 dB −1
WavecorMR120BD03
No current priceFs73 Hz −4%
Qts0.56 +12%, worse
Vas3.1 L −13%, better
BL5.2 T·m +3%
Xmax1.5 mm −46%, worse
Sensitivity85.1 dB −1
Tang BandW5-1611SA
No current priceFs60 Hz −21%, better
Qts0.44 −12%, better
Vas13.0 L +266%, worse
BL5.2 T·m –
Xmax3 mm +7%
Sensitivity88.7 dB +2.6, better
Tang BandW4-2099
No current priceFs60 Hz −21%, better
Qts0.47 −6%
Vas2.8 L −22%, better
BL3.7 T·m −26%, worse
Xmax3 mm +7%
Sensitivity82.5 dB −3.6, worse
Dayton AudioCFC120-4
No current priceFs57 Hz −25%, better
Qts0.45 −10%
Vas4.5 L +25%, worse
BL4.2 T·m −16%, worse
Xmax2.5 mm −11%, worse
Sensitivity83.9 dB −2.2, worse
WavecorWF146OM02
No current priceFs50 Hz −34%, better
Qts0.51 –
Vas13.6 L +282%, worse
BL5.4 T·m +7%
Xmax3.3 mm +18%, better
Sensitivity86.9 dB +0.8
CIARECM133
No current priceFs112 Hz +47%, worse
Qts0.54 +8%
Vas2.5 L −30%, better
BL5.0 T·m –
Xmax2 mm −29%, worse
Sensitivity89 dB +2.9, 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 |
|---|---|---|---|---|
RumoH Import VAT and duty may apply | £47.22, the lowest price | Stock not listed | Visit shop at RumoH |
Best price over time
Tracked since 28 Sep