Dayton AudioDS315-8
£89.75 · 33% less, betterFs24 Hz −63%, better
Qts0.31 −3%
Vas159 L +264%, worse
BL15.6 T·m −16%, worse
Xmax5.5 mm –
Sensitivity89.9 dB −7.4, worse
12-inch LF driver · FTR12 series · 75 mm voice coil · 350 W
Celestion FTR12-3070C 8Ω
8 Ω · 40–4000 Hz
£140.00
SteadyLean Business · All 4 offers
- Fs
- 65Hz
- Xmax
- 5.5mm
- SPL
- 97dB
- Pe
- 350W
- BL
- 18.6T·m
- Vd
- 292cm³
- Qts
- 0.32
- Vas
- 44L
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 confidence210 selected pixels of 388
Published graphs
Celestion FTR12-3070C is a 12-inch 8 ohm LF driver rated at 350 W RMS. The validated T/S data includes Fs 65 Hz, Qts 0.32, Vas 43.7 L, Xmax 5.5 mm, sensitivity 97.3 dB, plus 292 cm³ Vd and 180 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 £133.13.
The published T/S values agree with each other
Thiele/Small
- Fs
- 65Hz
- Qts
- 0.32
- Qes
- 0.36
- Qms
- 2.8
- Vas
- 43.7L
- Re
- 5.6Ω
- Le
- 1.09mH
Motor and cone
- BL
- 18.6T·m
- Sd
- 531cm²
- Mms
- 55g
- Xmax
- 5.5mm
- Vd †
- 292cm³
- Voice coil
- 75mm
Power and response
- Sensitivity †
- 97.3dB
- Manufacturer sensitivity
- 96dB
- Power
- 350W
- Impedance
- 8Ω
- Range
- 40–4000Hz
- EBP †
- 180 · Leans vented
Size and mounting
- Diameter
- 318mm
- Cutout
- 286mm
- Bolt circle
- 304mm
- Depth
- 102mm
- Weight
- 6.3kg
Other published values
- Cms
- 0.11mm/N
- Rms
- 7.96kg/s
- Power Program
- 700
Sensitivity shows 97.3 dB, calculated from the T/S values. Celestion publishes 96.0 dB, 1.3 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Celestion lists
LF · Primary · 12″
- BL
- 18.6T·m
- Fs
- 65Hz
- Le
- 1.09mH
- Re
- 5.6Ω
- Sd
- 531cm²
- Cms
- 0.11mm/N
- Mms
- 55g
- Qes
- 0.36
- Qms
- 2.8
- Qts
- 0.32
- Rms
- 7.96kg/s
- SPL
- 97.3dB
- Vas
- 43.7L
- Xmax
- 5.5mm
- Power
- 350W
- Impedance
- 8Ω
- Sensitivity
- 96dB
- Low limit
- 40Hz
- Power Program
- 700
- Calculated sensitivity †
- 97.3dB
- High limit
- 4000Hz
- Manufacturer sensitivity
- 96dB
- Voice coil
- 75mm
- Weight
- 6.3kg
- Diameter
- 318mm
- Depth
- 102mm
- Cutout
- 286mm
- Bolt circle
- 304mm
02
Compare
Same-size drivers, compared with the FTR12-3070C. Clear differences are green when better and red when worse.
This driverFTR12-3070C
Best price
£133.13
Fs
65 Hz
Qts
0.32
Vas
43.7 L
BL
18.6 T·m
Xmax
5.5 mm
Sensitivity
97.3 dB
Power
350 W
CelestionTF1225E
£99.00 · 26% less, betterFs53 Hz −19%, better
Qts0.33 +4%
Vas67.7 L +55%, worse
BL17.7 T·m −5%
Xmax5.3 mm −5%
Sensitivity96.3 dB −1
CIAREPWA12.64
£114.71 · 14% less, betterFs55 Hz −16%, better
Qts0.35 +9%
Vas58 L +33%, worse
BL17.6 T·m −5%
Xmax4.5 mm −18%, worse
Sensitivity96.3 dB −1
CIAREPWA12.75
£121.41 · 9% less, betterFs53 Hz −19%, better
Qts0.30 −7%
Vas52 L +19%, worse
BL19.6 T·m +5%
Xmax5.8 mm +5%
Sensitivity95.9 dB −1.4
PRV Audio12MR2000
£142.06 · 7% more, worseFs57 Hz −12%, better
Qts0.33 –
Vas52.5 L +20%, worse
BL21.3 T·m +14%, better
Xmax6.6 mm +20%, better
Sensitivity96.6 dB −0.7
B&C12FW88
£163.69 · 23% more, worseFs53 Hz −19%, better
Qts0.33 –
Vas45.7 L +5%
BL19.5 T·m +5%
Xmax8 mm +45%, better
Sensitivity94.9 dB −2.4, worse
Eighteen Sound12W700
£179.00 · 34% more, worseFs58 Hz −11%, better
Qts0.36 +12%, worse
Vas55 L +26%, worse
BL17.7 T·m −5%
Xmax6.5 mm +18%, better
Sensitivity96.7 dB −0.6
PRV Audio12MR2000-NDY
£209.39 · 57% more, worseFs54 Hz −16%, better
Qts0.34 +6%
Vas48.2 L +10%, worse
BL22.8 T·m +23%, better
Xmax6.2 mm +12%, better
Sensitivity95.5 dB −1.8
Precision DevicesPD.124NR1
£219.00 · 64% more, worseFs58 Hz −11%, better
Qts0.35 +9%
Vas49 L +12%, worse
BL19.2 T·m +3%
Xmax8.5 mm +55%, better
Sensitivity96.2 dB −1.1
Eighteen Sound12NTLW3500
£285.52 · 114% more, worseFs53 Hz −19%, better
Qts0.33 –
Vas45 L –
BL19.5 T·m +5%
Xmax8.3 mm +51%, better
Sensitivity94.8 dB −2.5, worse
Eighteen Sound12NCX750
£426.63 · 220% more, worseFs58 Hz −11%, better
Qts0.29 −10%
Vas63 L +44%, worse
BL17.5 T·m −6%
Xmax5.5 mm –
Sensitivity98 dB +0.7
Eighteen Sound12NCX750H
£444.75 · 234% more, worseFs58 Hz −11%, better
Qts0.29 −10%
Vas63 L +44%, worse
BL17.5 T·m −6%
Xmax5.5 mm –
Sensitivity98 dB +0.7
Oberton12HCX
No current priceFs53 Hz −19%, better
Qts0.33 +4%
Vas55.5 L +27%, worse
BL17.8 T·m −4%
Xmax5.3 mm −5%
Sensitivity95.6 dB −1.7
B&C12FL64
No current priceFs51 Hz −22%, better
Qts0.32 –
Vas50 L +14%, worse
BL20.2 T·m +9%
Xmax5 mm −9%
Sensitivity94.9 dB −2.4, worse
P.Audio12NT-88MB
No current priceFs55 Hz −16%, better
Qts0.32 –
Vas49.1 L +12%, worse
BL20.9 T·m +12%, better
Xmax5 mm −9%
Sensitivity95.8 dB −1.5
FaneCOLOSSUS 12MB
No current priceFs55 Hz −16%, better
Qts0.29 −11%, better
Vas56 L +28%, worse
BL18.3 T·m –
Xmax5.5 mm –
Sensitivity96.5 dB −0.8
Oberton12CX
No current priceFs51 Hz −21%, better
Qts0.35 +8%
Vas58.5 L +34%, worse
BL17.4 T·m −6%
Xmax5.3 mm −5%
Sensitivity95.4 dB −1.9
B&C12FL76
No current priceFs50 Hz −23%, better
Qts0.30 −7%
Vas57 L +30%, worse
BL18.7 T·m –
Xmax6 mm +9%
Sensitivity95.5 dB −1.8
P.Audio12FT-88MB
No current priceFs48 Hz −26%, better
Qts0.37 +15%, worse
Vas45.4 L +4%
BL19.1 T·m –
Xmax4.7 mm −15%, worse
Sensitivity93.1 dB −4.2, worse
CelestionCF1230F
No current priceFs57 Hz −13%, better
Qts0.32 –
Vas49.6 L +14%, worse
BL18.3 T·m –
Xmax7.5 mm +36%, better
Sensitivity96.2 dB −1.1
Eighteen Sound12NW350
No current priceFs54 Hz −17%, better
Qts0.34 +6%
Vas46 L +5%
BL19.2 T·m +3%
Xmax8.3 mm +51%, better
Sensitivity95.2 dB −2.1, worse
CIARE12.75W1
No current priceFs49 Hz −25%, better
Qts0.33 –
Vas67 L +53%, worse
BL18.9 T·m –
Xmax6 mm +9%
Sensitivity95.7 dB −1.6
P.Audio12BMA-500B
No current priceFs57 Hz −12%, better
Qts0.34 +6%
Vas61.4 L +41%, worse
BL16.7 T·m −10%, worse
Xmax5 mm −9%
Sensitivity97 dB –
PRV Audio12MB2000FT
No current priceFs56 Hz −15%, better
Qts0.32 –
Vas66.9 L +53%, worse
BL17.7 T·m −5%
Xmax6 mm +9%
Sensitivity97.5 dB –
CelestionTF1225CX
No current priceFs64 Hz –
Qts0.36 +12%, worse
Vas45.1 L +3%
BL17.5 T·m −6%
Xmax4.5 mm −18%, worse
Sensitivity96.6 dB −0.7
PeerlessSDF-300F75PR03-04
No current priceFs27 Hz −59%, better
Qts0.36 +12%, worse
Vas45.5 L +4%
BL18.7 T·m –
Xmax25.2 mm +358%, better
Sensitivity85.9 dB −11.4, worse
Eighteen Sound12LW801
No current priceFs54 Hz −17%, better
Qts0.33 –
Vas41 L −6%
BL20.3 T·m +9%
Xmax8 mm +45%, better
Sensitivity94.8 dB −2.5, worse
P.Audio12NX-76MB
No current priceFs55 Hz −16%, better
Qts0.31 −3%
Vas50.3 L +15%, worse
BL21.4 T·m +15%, better
Xmax4.8 mm −14%, worse
Sensitivity96.3 dB −1
CelestionTSQ1230
No current priceFs55 Hz −16%, better
Qts0.30 −6%
Vas45.2 L +3%
BL20.5 T·m +10%, better
Xmax6.8 mm +23%, better
Sensitivity95.8 dB −1.5
Oberton12NCX
No current priceFs58 Hz −11%, better
Qts0.30 −7%
Vas62.9 L +44%, worse
BL17.2 T·m −7%
Xmax5.3 mm −5%
Sensitivity98.1 dB +0.8
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express5.0 out of 51 rating · Checked 26 Oct 2026Read reviews on Parts Express
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Business | £140.00, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £145.00 | 3.6% above the lowest price | Out of stock | Visit shop at Lean Audio |
Parts Express Import VAT and duty may apply | £141.38 | 1.0% above the lowest price | 2 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr