REDCATT4FR-1
£11.93 · 39% less, betterFs79 Hz –
Qts0.52 –
Vas1.8 L −67%, better
BL4.8 T·m −16%, worse
Xmax2.8 mm −7%
Sensitivity83.7 dB −5, worse
5-inch LF driver · 25 mm voice coil · 60 W
Sica 5 D 1 CS 8Ω
8 Ω
£33.39
SoundImports · 4 in stock · Ships from Netherlands · All 2 offers
- Fs
- 79Hz
- Xmax
- 3mm
- SPL
- 89dB
- Pe
- 60W
- BL
- 5.7T·m
- Vd
- 24cm³
- Qts
- 0.52
- Vas
- 6L
Sica 5 D 1 CS is a 5-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 79 Hz, Qts 0.52, Vas 5.5 L, Xmax 3 mm, sensitivity 88.7 dB, plus 24 cm³ Vd and 136 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 £19.64.
The published T/S values agree with each other
Thiele/Small
- Fs
- 79Hz
- Qts
- 0.52
- Qes
- 0.58
- Qms
- 5.0
- Vas
- 5.5L
- Re
- 6Ω
- Le
- 0.33mH
Motor and cone
- BL
- 5.7T·m
- Sd
- 79cm²
- Mms
- 6g
- Xmax
- 3mm
- Vd †
- 24cm³
- Voice coil
- 25mm
- Flux density
- 0.95T
Power and response
- Sensitivity †
- 88.7dB
- Manufacturer sensitivity
- 90dB
- Power
- 60W
- Impedance
- 8Ω
- EBP †
- 136 · Leans vented
Size and mounting
- Diameter
- 130mm
- Cutout
- 113mm
- Bolt circle
- 139mm
- Depth
- 58.1mm
- Weight
- 0.9kg
Other published values
- Cms
- 0.63mm/N
- Power Program
- 120
Sensitivity shows 88.7 dB, calculated from the T/S values. Sica publishes 90.0 dB, 1.3 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Sica lists
LF · Primary · 5″
- BL
- 5.7T·m
- Fs
- 79Hz
- Le
- 0.33mH
- Re
- 6Ω
- Sd
- 79cm²
- Cms
- 0.63mm/N
- Mms
- 6g
- Qes
- 0.58
- Qms
- 5.0
- Qts
- 0.52
- SPL
- 88.7dB
- Vas
- 5.5L
- Xmax
- 3mm
- Power
- 60W
- Impedance
- 8Ω
- Flux density
- 0.95T
- Sensitivity
- 90dB
- Power Program
- 120
- Calculated sensitivity †
- 88.7dB
- Manufacturer sensitivity
- 90dB
- Voice coil
- 25mm
- Weight
- 0.9kg
- Diameter
- 130mm
- Depth
- 58.1mm
- Cutout
- 113mm
- Bolt circle
- 139mm
02
Compare
Same-size drivers, compared with the 5 D 1 CS. Clear differences are green when better and red when worse.
This driver5 D 1 CS
Best price
£19.64
Fs
79 Hz
Qts
0.52
Vas
5.5 L
BL
5.7 T·m
Xmax
3 mm
Sensitivity
88.7 dB
Power
60 W
HiViB4N
£18.76 · 4% lessFs56 Hz −29%, better
Qts0.52 –
Vas4.5 L −18%, better
BL5.1 T·m −11%, worse
Xmax3.2 mm +7%
Sensitivity83 dB −5.7, worse
Dayton AudioDA135-8
£20.85 · 6% more, worseFs57 Hz −28%, better
Qts0.54 +4%
Vas7.4 L +35%, worse
BL5.3 T·m −7%
Xmax3 mm –
Sensitivity85 dB −3.7, worse
Dayton AudioCFC120-8
£25.03 · 27% more, worseFs60 Hz −24%, better
Qts0.56 +8%
Vas4.6 L −16%, better
BL5.1 T·m −10%, worse
Xmax2.5 mm −17%, worse
Sensitivity83.6 dB −5.1, worse
PeerlessSLS-135F32CP01-04
£26.27 · 34% more, worseFs55 Hz −30%, better
Qts0.54 +4%
Vas5.7 L –
BL5.2 T·m −10%
Xmax7 mm +133%, better
Sensitivity84 dB −4.7, worse
Dayton AudioRS125T-8
£47.14 · 140% more, worseFs76 Hz −4%
Qts0.50 −4%
Vas3.6 L −35%, better
BL5.0 T·m −12%, worse
Xmax2.8 mm −7%
Sensitivity86.1 dB −2.6, worse
WavecorWF118WA02
£52.16 · 166% more, worseFs65 Hz −18%, better
Qts0.44 −15%, better
Vas4.3 L −22%, better
BL5.8 T·m –
Xmax3 mm –
Sensitivity86.1 dB −2.6, worse
Beyma5MP60
£52.22 · 166% more, worseFs63 Hz −20%, better
Qts0.46 −12%, better
Vas5.8 L +5%
BL6.4 T·m +12%, better
Xmax5.5 mm +83%, better
Sensitivity86 dB −2.7, worse
EminenceALPHA 5-8
£55.66 · 183% more, worseFs87 Hz +10%, worse
Qts0.54 +4%
Vas6.1 L +12%, worse
BL6.2 T·m +9%
Xmax5.9 mm +97%, better
Sensitivity90.6 dB +1.9
WavecorWF146WA02
£57.38 · 192% more, worseFs58 Hz −27%, better
Qts0.51 –
Vas10 L +82%, worse
BL6.4 T·m +12%, better
Xmax3 mm –
Sensitivity87.6 dB −1.1
EminenceALPHA-6A
£57.54 · 193% more, worseFs103 Hz +30%, worse
Qts0.54 +4%
Vas5.8 L +5%
BL8 T·m +40%, better
Xmax3.5 mm +17%, better
Sensitivity92.3 dB +3.6, better
FaitalPRO6PR110
£62.80 · 220% more, worseFs100 Hz +27%, worse
Qts0.53 –
Vas5.6 L –
BL8.5 T·m +48%, better
Xmax2.8 mm −8%
Sensitivity91.7 dB +3, better
Tang BandW4-2417
£64.27 · 227% more, worseFs65 Hz −18%, better
Qts0.44 −15%, better
Vas4.6 L −17%, better
BL5.4 T·m −6%
Xmax2.5 mm −17%, worse
Sensitivity85.8 dB −2.9, worse
Sica5 N 1.5 PL
£65.19 · 232% more, worseFs111 Hz +40%, worse
Qts0.56 +8%
Vas3 L −45%, better
BL6.2 T·m +8%
Xmax3 mm –
Sensitivity89.5 dB +0.8
WavecorWF118WA06
£82.74 · 321% more, worseFs66 Hz −16%, better
Qts0.55 +6%
Vas3.5 L −36%, better
BL5.6 T·m –
Xmax3 mm –
Sensitivity84.3 dB −4.4, worse
WavecorSW146WA01
£94.69 · 382% more, worseFs51 Hz −35%, better
Qts0.48 −8%
Vas5.5 L –
BL5.9 T·m –
Xmax6 mm +100%, better
Sensitivity83.7 dB −5, worse
WavecorWF120BD14
£132.89 · 577% more, worseFs58 Hz −27%, better
Qts0.46 −12%, better
Vas3.9 L −29%, better
BL5.3 T·m −8%
Xmax3 mm –
Sensitivity83.8 dB −4.9, worse
Tang BandW6-2144
£141.25 · 619% more, worseFs45 Hz −43%, better
Qts0.45 −13%, better
Vas34.6 L +529%, worse
BL5.5 T·m −5%
Xmax3 mm –
Sensitivity89.1 dB –
£275.76 · 1304% more, worse
Fs67 Hz −15%, better
Qts0.40 −23%, better
Vas6 L +9%
BL5.3 T·m −8%
Xmax3 mm –
Sensitivity87.4 dB −1.3
AccutonC90-6-724
£526.49 · 2581% more, worseFs83 Hz +5%
Qts0.60 +15%, worse
Vas5.1 L −7%
BL6.0 T·m +4%
Xmax3 mm –
Sensitivity88.4 dB –
PRV Audio6MB400-4
No current priceFs125 Hz +58%, worse
Qts0.52 –
Vas5.3 L −4%
BL6.6 T·m +15%, better
Xmax3 mm –
Sensitivity94.7 dB +6, better
Tang BandW4-2356
No current priceFs70 Hz −11%, better
Qts0.45 −13%, better
Vas4.0 L −28%, better
BL4.9 T·m −14%, worse
Xmax3 mm –
Sensitivity85.7 dB −3, worse
Dayton AudioE150MR-4
No current priceFs75 Hz −5%
Qts0.52 –
Vas7.4 L +35%, worse
BL4.9 T·m −14%, worse
Xmax2.7 mm −10%
Sensitivity89.1 dB –
WavecorWF120BD13
No current priceFs59 Hz −25%, better
Qts0.47 −10%
Vas3.8 L −31%, better
BL5.3 T·m −8%
Xmax3 mm –
Sensitivity84 dB −4.7, worse
CelestionTFX0512
No current priceFs69 Hz −13%, better
Qts0.46 −12%, better
Vas5.4 L –
BL6.4 T·m +12%, better
Xmax3.3 mm +8%
Sensitivity87.6 dB −1.1
WavecorWF120BD09
No current priceFs54 Hz −32%, better
Qts0.50 −4%
Vas5.3 L −4%
BL5.2 T·m −9%
Xmax4 mm +33%, better
Sensitivity83.9 dB −4.8, worse
WavecorWF146OM02
No current priceFs50 Hz −37%, better
Qts0.51 –
Vas13.6 L +147%, worse
BL5.4 T·m −6%
Xmax3.3 mm +10%
Sensitivity86.9 dB −1.8
Tang BandW4-1337SD
No current priceFs70 Hz −11%, better
Qts0.37 −29%, better
Vas4.9 L −12%, better
BL5.4 T·m −6%
Xmax3 mm –
Sensitivity87.3 dB −1.4
VisatonAL 130 M
No current priceFs57 Hz −28%, better
Qts0.46 −12%, better
Vas9.1 L +65%, worse
BL5.6 T·m –
Xmax3 mm –
Sensitivity87.1 dB −1.6
Tang BandW4-1320SI
No current priceFs75 Hz −5%
Qts0.38 −27%, better
Vas5.2 L −5%
BL5.1 T·m −10%, worse
Xmax3 mm –
Sensitivity88.7 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports5.0 out of 51 rating · Checked 4 Nov 2026Read reviews on SoundImports
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
SoundImports Import VAT and duty may apply | £33.39, the lowest price | 4 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 4 Nov