REDCATT154FIND
£82.89 · 50% less, betterFs38 Hz −8%
Qts0.40 +5%
Vas187.2 L –
BL18.1 T·m +4%
Xmax4.5 mm −18%, worse
Sensitivity95.8 dB −1.1
15-inch LF driver · FTR15 series · 75 mm voice coil · 400 W
Celestion FTR15-3070C 8Ω
8 Ω · 40–4000 Hz
£166.00
0.6%Thomann · In stock · All 3 offers
- Fs
- 41Hz
- Xmax
- 5.5mm
- SPL
- 97dB
- Pe
- 400W
- BL
- 17.3T·m
- Vd
- 470cm³
- Qts
- 0.38
- Vas
- 188L
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 1 trace
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
LF frequency response
Frequency response
137 plotted pointsMedium confidence2,317 selected pixels of 2,320
Published graphs
Celestion FTR15-3070C is a 15-inch 8 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 41 Hz, Qts 0.38, Vas 187.6 L, Xmax 5.5 mm, sensitivity 96.9 dB, plus 470 cm³ Vd and 97 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 £166.00.
The published T/S values agree with each other
Thiele/Small
- Fs
- 41Hz
- Qts
- 0.38
- Qes
- 0.43
- Qms
- 3.5
- Vas
- 187.6L
- Re
- 6.1Ω
- Le
- 0.59mH
Motor and cone
- BL
- 17.3T·m
- Sd
- 855cm²
- Mms
- 82g
- Xmax
- 5.5mm
- Vd †
- 470cm³
- Voice coil
- 75mm
Power and response
- Sensitivity †
- 96.9dB
- Manufacturer sensitivity
- 99dB
- Power
- 400W
- Impedance
- 8Ω
- Range
- 40–4000Hz
- EBP †
- 97 · Sealed or vented
Size and mounting
- Diameter
- 385mm
- Cutout
- 351mm
- Bolt circle
- 375mm
- Depth
- 158mm
- Weight
- 6.3kg
Other published values
- Cms
- 0.18mm/N
- Rms
- 6.05kg/s
- Power Program
- 800
Sensitivity shows 96.9 dB, calculated from the T/S values. Celestion publishes 99.0 dB, 2.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Celestion lists
LF · Primary · 15″
- BL
- 17.3T·m
- Fs
- 41Hz
- Le
- 0.59mH
- Re
- 6.1Ω
- Sd
- 855cm²
- Cms
- 0.18mm/N
- Mms
- 82g
- Qes
- 0.43
- Qms
- 3.5
- Qts
- 0.38
- Rms
- 6.05kg/s
- SPL
- 96.9dB
- Vas
- 187.6L
- Xmax
- 5.5mm
- Power
- 400W
- Impedance
- 8Ω
- Sensitivity
- 99dB
- Low limit
- 40Hz
- Power Program
- 800
- Calculated sensitivity †
- 96.9dB
- High limit
- 4000Hz
- Manufacturer sensitivity
- 99dB
- Voice coil
- 75mm
- Weight
- 6.3kg
- Diameter
- 385mm
- Depth
- 158mm
- Cutout
- 351mm
- Bolt circle
- 375mm
02
Compare
Same-size drivers, compared with the FTR15-3070C. Clear differences are green when better and red when worse.
This driverFTR15-3070C
Best price
£166.00
Fs
41 Hz
Qts
0.38
Vas
187.6 L
BL
17.3 T·m
Xmax
5.5 mm
Sensitivity
96.9 dB
Power
400 W
EminenceKAPPA PRO-15A
£138.38 · 17% less, betterFs47 Hz +14%, worse
Qts0.38 –
Vas167.7 L −11%, better
BL16.6 T·m −4%
Xmax3.2 mm −42%, worse
Sensitivity98.4 dB +1.5
EminenceKAPPA-15LFA
£143.62 · 13% less, betterFs39 Hz −6%
Qts0.38 –
Vas159 L −15%, better
BL18.6 T·m +7%
Xmax5.5 mm –
Sensitivity95.6 dB −1.3
£152.00 · 8% less, better
Fs40 Hz −3%
Qts0.37 −3%
Vas188 L –
BL19.7 T·m +14%, better
Xmax6.9 mm +25%, better
Sensitivity97 dB –
FaitalPRO15PR450
£165.79 · Same priceFs35 Hz −15%, better
Qts0.35 −8%
Vas235.6 L +26%, worse
BL16.6 T·m −4%
Xmax6 mm +9%
Sensitivity96.4 dB −0.5
Eighteen Sound15W750
£185.88 · 12% more, worseFs39 Hz −6%
Qts0.37 −3%
Vas218 L +16%, worse
BL17.6 T·m –
Xmax8 mm +45%, better
Sensitivity97.2 dB –
FaitalPRO15FH520
£211.00 · 27% more, worseFs36 Hz −13%, better
Qts0.39 –
Vas186.5 L –
BL18.4 T·m +6%
Xmax8.8 mm +59%, better
Sensitivity95.3 dB −1.6
BMS15N620
£216.43 · 30% more, worseFs41 Hz –
Qts0.35 −8%
Vas154 L −18%, better
BL20.6 T·m +19%, better
Xmax5.5 mm –
Sensitivity96.6 dB –
BMS15CN682
£384.52 · 132% more, worseFs41 Hz –
Qts0.36 −6%
Vas137 L −27%, better
BL20.6 T·m +19%, better
Xmax5.5 mm –
Sensitivity95.9 dB −1
Beyma15CXA400ND
£401.87 · 142% more, worseFs40 Hz −3%
Qts0.36 −6%
Vas196 L +4%
BL19 T·m +10%
Xmax6 mm +9%
Sensitivity97.1 dB –
Eighteen Sound15NCX750
£454.74 · 174% more, worseFs49 Hz +18%, worse
Qts0.37 −3%
Vas141 L −25%, better
BL18.4 T·m +6%
Xmax5.5 mm –
Sensitivity98.2 dB +1.3
Eighteen Sound15NCX750H
£470.84 · 184% more, worseFs49 Hz +18%, worse
Qts0.37 −3%
Vas141 L −25%, better
BL18.5 T·m +7%
Xmax5.5 mm –
Sensitivity98.2 dB +1.3
Sica15 CX 3 PL P
No current priceFs45 Hz +7%
Qts0.40 +5%
Vas152.4 L −19%, better
BL17.3 T·m –
Xmax5.5 mm –
Sensitivity97.1 dB –
Sica15 CX 3 PL T
No current priceFs45 Hz +7%
Qts0.40 +5%
Vas152.4 L −19%, better
BL17.3 T·m –
Xmax5.5 mm –
Sensitivity97.1 dB –
P.Audio15BM-500B-V3
No current priceFs41 Hz –
Qts0.37 −3%
Vas183.4 L –
BL17.8 T·m –
Xmax4.8 mm −13%, worse
Sensitivity96.9 dB –
Beyma15CXA400FE
No current priceFs40 Hz −3%
Qts0.42 +10%
Vas191 L –
BL18.2 T·m +5%
Xmax6 mm +9%
Sensitivity96.6 dB –
No current price
Fs38 Hz −8%
Qts0.35 −8%
Vas201 L +7%
BL17.5 T·m –
Xmax6 mm +9%
Sensitivity96.5 dB –
EminenceCANNABASS CB3015N-8
No current priceFs41 Hz –
Qts0.39 –
Vas162.9 L −13%, better
BL17.8 T·m –
Xmax7.2 mm +31%, better
Sensitivity96.1 dB −0.8
No current price
Fs37 Hz −11%, better
Qts0.39 –
Vas236 L +26%, worse
BL15.9 T·m −8%
Xmax6.5 mm +18%, better
Sensitivity96.6 dB –
RCFMB15N301
No current priceFs48 Hz +16%, worse
Qts0.37 −3%
Vas134 L −29%, better
BL19.2 T·m +11%, better
Xmax6 mm +9%
Sensitivity97.8 dB +0.9
BMS15CN680
No current priceFs41 Hz –
Qts0.36 −6%
Vas137 L −27%, better
BL20.6 T·m +19%, better
Xmax5.5 mm –
Sensitivity95.9 dB −1
Sica15 FE 3 CP
No current priceFs40 Hz –
Qts0.33 −14%, better
Vas170.4 L −9%
BL19.1 T·m +10%, better
Xmax5.5 mm –
Sensitivity97.2 dB –
CelestionFTR15-3070E
No current priceFs46 Hz +11%, worse
Qts0.38 –
Vas145.8 L −22%, better
BL17.9 T·m +3%
Xmax7.8 mm +41%, better
Sensitivity97.2 dB –
CelestionTF1530SL
No current priceFs46 Hz +12%, worse
Qts0.39 –
Vas140.1 L −25%, better
BL17.0 T·m –
Xmax4 mm −27%, worse
Sensitivity96.9 dB –
P.Audio15NT-76MB
No current priceFs45 Hz +9%
Qts0.43 +13%, worse
Vas133.7 L −29%, better
BL19.0 T·m +10%
Xmax5.2 mm −5%
Sensitivity96.4 dB −0.5
CelestionTF1530E
No current priceFs44 Hz +5%
Qts0.33 −14%, better
Vas191.6 L –
BL17.0 T·m –
Xmax6.5 mm +18%, better
Sensitivity98.3 dB +1.4
Precision DevicesPD.154NR1
No current priceFs46 Hz +11%, worse
Qts0.40 +5%
Vas158 L −16%, better
BL18.5 T·m +7%
Xmax8.5 mm +55%, better
Sensitivity97.6 dB +0.7
Sica15 S 3 PL
No current priceFs33 Hz −20%, better
Qts0.38 –
Vas230 L +23%, worse
BL17.1 T·m –
Xmax8 mm +45%, better
Sensitivity95.3 dB −1.6
Eighteen Sound15ND840
No current priceFs43 Hz +4%
Qts0.37 −3%
Vas163 L −13%, better
BL17.9 T·m +3%
Xmax9.5 mm +73%, better
Sensitivity97.2 dB –
P.AudioC15-600EL-V3
No current priceFs45 Hz +9%
Qts0.40 +5%
Vas94.6 L −50%, better
BL20.4 T·m +18%, better
Xmax5.3 mm −5%
Sensitivity95 dB −1.9
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann5.0 out of 54 ratings · Checked 25 Oct 2026Read reviews on Thomann
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Thomann | £166.00, the lowest price | In stock | Visit shop at Thomann | |
Lean Audio | £169.00 | 1.8% above the lowest price | Out of stock | Visit shop at Lean Audio |
Lean Business | £169.00 | 1.8% above the lowest price | Out of stock | Visit shop at Lean Business |
Best price over time
Tracked since 1 Apr
Recent changes
- 20 OctThomann£167.00 → £166.00Down 0.6% from £167.00
- 12 OctThomann£176.00 → £167.00Down 5.1% from £176.00
- 9 OctThomann£178.00 → £176.00Down 1.1% from £178.00