CelestionTF1220
£63.48 · 32% less, betterFs56 Hz +19%, worse
Qts0.39 −15%, better
Vas72.8 L −39%, better
BL13.9 T·m +29%, better
Xmax4 mm −9%
Sensitivity96.6 dB +0.6
12-inch LF driver · BETA series · 250 W
Eminence BETA-12A 8Ω
8 Ω · 43–3800 Hz
- Fs
- 47Hz
- Xmax
- 4.4mm
- SPL
- 96dB
- Pe
- 250W
- BL
- 10.8T·m
- Vd
- 237cm³
- Qts
- 0.46
- Vas
- 120L
Eminence BETA-12A is a 12-inch 8 ohm LF driver rated at 250 W RMS. The validated T/S data includes Fs 47 Hz, Qts 0.46, Vas 120.1 L, Xmax 4.4 mm, sensitivity 96 dB, plus 237 cm³ Vd and 94 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 £93.50.
The published T/S values agree with each other
Thiele/Small
- Fs
- 47Hz
- Qts
- 0.46
- Qes
- 0.50
- Qms
- 6
- Vas
- 120.1L
- Re
- 5Ω
- Le
- 0.64mH
Motor and cone
- BL
- 10.8T·m
- Sd
- 539cm²
- Mms
- 40g
- Xmax
- 4.4mm
- Vd †
- 237cm³
Power and response
- Sensitivity †
- 96dB
- Manufacturer sensitivity
- 98dB
- Power
- 250W
- Impedance
- 8Ω
- Range
- 43–3800Hz
- EBP †
- 94 · Sealed or vented
Size and mounting
- Diameter
- 305.6mm
- Cutout
- 281.2mm
- Bolt circle
- 294.4mm
- Depth
- 139.7mm
- Weight
- 3.4kg
Other published values
- Cms
- 0.29mm/N
- Xmech
- 11
- Power Program
- 500
Sensitivity shows 96.0 dB, calculated from the T/S values. Eminence publishes 98.0 dB, 2.0 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eminence lists
LF · Primary · 12″
- BL
- 10.8T·m
- Fs
- 47Hz
- Le
- 0.64mH
- Re
- 5Ω
- Sd
- 539cm²
- Cms
- 0.29mm/N
- Mms
- 40g
- Qes
- 0.50
- Qms
- 6
- Qts
- 0.46
- SPL
- 96dB
- Vas
- 120.1L
- Xmax
- 4.4mm
- Xmech
- 11
- Power
- 250W
- Impedance
- 8Ω
- Sensitivity
- 98dB
- Low limit
- 43Hz
- Power Program
- 500
- Calculated sensitivity †
- 96dB
- High limit
- 3800Hz
- Manufacturer sensitivity
- 98dB
- Weight
- 3.4kg
- Diameter
- 305.6mm
- Depth
- 139.7mm
- Cutout
- 281.2mm
- Bolt circle
- 294.4mm
02
Compare
Same-size drivers, compared with the BETA-12A. Clear differences are green when better and red when worse.
This driverBETA-12A
Best price
£93.50
Fs
47 Hz
Qts
0.46
Vas
120.1 L
BL
10.8 T·m
Xmax
4.4 mm
Sensitivity
96 dB
Power
250 W
PRV Audio12W750A
£63.52 · 32% less, betterFs60 Hz +27%, worse
Qts0.43 −7%
Vas81 L −33%, better
BL14.3 T·m +32%, better
Xmax3.6 mm −18%, worse
Sensitivity98 dB +2, better
FaitalPRO12FE300
£64.00 · 32% less, betterFs47 Hz –
Qts0.51 +11%, worse
Vas83.7 L −30%, better
BL12.5 T·m +16%, better
Xmax5.1 mm +15%, better
Sensitivity94.2 dB −1.8
PRV Audio12W800A
£67.26 · 28% less, betterFs50 Hz +6%
Qts0.47 –
Vas93.9 L −22%, better
BL12.7 T·m +18%, better
Xmax5.7 mm +30%, better
Sensitivity95.8 dB –
FaitalPRO12FE330
£78.71 · 16% less, betterFs33 Hz −30%, better
Qts0.45 –
Vas146.7 L +22%, worse
BL13 T·m +20%, better
Xmax8.3 mm +89%, better
Sensitivity92.4 dB −3.6, worse
CIAREHW320
£85.70 · 8% less, betterFs27 Hz −43%, better
Qts0.44 −4%
Vas293 L +144%, worse
BL9.6 T·m −11%, worse
Xmax6.3 mm +43%, better
Sensitivity92.6 dB −3.4, worse
EminenceBETA 12CX
£95.30 · 2% moreFs47 Hz –
Qts0.48 +4%
Vas120.9 L –
BL10.8 T·m –
Xmax3.5 mm −20%, worse
Sensitivity95.9 dB –
CIAREFXI12
£96.29 · 3% moreFs55 Hz +17%, worse
Qts0.44 −4%
Vas70 L −42%, better
BL13.9 T·m +29%, better
Xmax5 mm +14%, better
Sensitivity95.8 dB –
EminenceDELTA-12A
£98.74 · 6% more, worseFs55 Hz +17%, worse
Qts0.43 −7%
Vas81.3 L −32%, better
BL13.5 T·m +25%, better
Xmax2.4 mm −45%, worse
Sensitivity96.7 dB +0.7
Beyma12BR70
£99.85 · 7% more, worseFs31 Hz −34%, better
Qts0.50 +9%
Vas142 L +18%, worse
BL12.1 T·m +12%, better
Xmax8 mm +82%, better
Sensitivity90.8 dB −5.2, worse
EminenceDELTA-12LFC
£104.72 · 12% more, worseFs52 Hz +11%, worse
Qts0.44 −4%
Vas63.7 L −47%, better
BL10.9 T·m –
Xmax4.8 mm +9%
Sensitivity94.8 dB −1.2
EminenceDELTA-12LFA
£104.72 · 12% more, worseFs51 Hz +9%
Qts0.47 –
Vas67.9 L −43%, better
BL14.1 T·m +31%, better
Xmax4.8 mm +9%
Sensitivity94.5 dB −1.5
EminenceLEGEND BP 122
£120.00 · 28% more, worseFs35 Hz −26%, better
Qts0.54 +17%, worse
Vas157.4 L +31%, worse
BL10.6 T·m –
Xmax6.2 mm +41%, better
Sensitivity92.8 dB −3.2, worse
Eighteen Sound12W500
£128.11 · 37% more, worseFs46 Hz –
Qts0.36 −22%, better
Vas123 L –
BL12.1 T·m +12%, better
Xmax4 mm −9%
Sensitivity97 dB +1
CIARECMI320ND
£149.07 · 59% more, worseFs53 Hz +13%, worse
Qts0.43 −7%
Vas70 L −42%, better
BL10.6 T·m –
Xmax5 mm +14%, better
Sensitivity95.8 dB –
VisatonPAW 30 ND
£221.00 · 136% more, worseFs52 Hz +11%, worse
Qts0.46 –
Vas55.4 L −54%, better
BL15.4 T·m +43%, better
Xmax4 mm −9%
Sensitivity93.9 dB −2.1, worse
SB AudienceROSSO-12CX350
£251.15 · 169% more, worseFs49 Hz +4%
Qts0.49 +7%
Vas90.4 L −25%, better
BL12.1 T·m +12%, better
Xmax8.2 mm +86%, better
Sensitivity95.1 dB −0.9
Dayton AudioRSS315HFA-8
£258.98 · 177% more, worseFs22 Hz −53%, better
Qts0.45 –
Vas97.2 L −19%, better
BL18 T·m +67%, better
Xmax14.3 mm +225%, better
Sensitivity85 dB −11, worse
LavoceFBASS12-20
No current priceFs53 Hz +13%, worse
Qts0.46 –
Vas75.4 L −37%, better
BL13.3 T·m +23%, better
Xmax4.3 mm –
Sensitivity95.5 dB −0.5
LavoceLBASS12-15
No current priceFs38 Hz −19%, better
Qts0.48 +4%
Vas160.9 L +34%, worse
BL10.1 T·m −7%
Xmax4.7 mm +7%
Sensitivity94 dB −2, worse
Sica12 C 2 CP
No current priceFs58 Hz +24%, worse
Qts0.45 –
Vas74.3 L −38%, better
BL13.7 T·m +27%, better
Xmax4.5 mm –
Sensitivity96.8 dB +0.8
Acoustic EleganceSBP12-4
No current priceFs24 Hz −50%, better
Qts0.48 +4%
Vas160 L +33%, worse
BL10.5 T·m –
Xmax14 mm +218%, better
Sensitivity87.9 dB −8.1, worse
CIAREHSB322
No current priceFs35 Hz −26%, better
Qts0.42 −9%
Vas83 L −31%, better
BL12 T·m +11%, better
Xmax7.5 mm +70%, better
Sensitivity90.8 dB −5.2, worse
P.Audio12BMA-300B
No current priceFs61 Hz +30%, worse
Qts0.49 +7%
Vas54.4 L −55%, better
BL13.7 T·m +27%, better
Xmax4 mm −9%
Sensitivity95.7 dB –
JensenBS10N250A-8
No current priceFs58 Hz +23%, worse
Qts0.43 −7%
Vas30.9 L −74%, better
BL12.9 T·m +20%, better
Xmax5 mm +14%, better
Sensitivity93.2 dB −2.8, worse
Acoustic EleganceSBP12-8
No current priceFs24 Hz −50%, better
Qts0.48 +4%
Vas160 L +33%, worse
BL13.1 T·m +21%, better
Xmax14 mm +218%, better
Sensitivity87.9 dB −8.1, worse
EminenceDELTALITE 2512
No current priceFs53 Hz +13%, worse
Qts0.52 +13%, worse
Vas67.4 L −44%, better
BL11.6 T·m +7%
Xmax4.9 mm +11%, better
Sensitivity94 dB −2, worse
HiViSS12
No current priceFs33 Hz −30%, better
Qts0.55 +20%, worse
Vas105.9 L −12%, better
BL10.7 T·m –
Xmax7.3 mm +66%, better
Sensitivity90 dB −6, worse
CelestionTF1218
No current priceFs59 Hz +26%, worse
Qts0.52 +12%, worse
Vas83.0 L −31%, better
BL11.2 T·m +4%
Xmax2 mm −55%, worse
Sensitivity96.5 dB +0.5
CelestionFTR12-2565D
No current priceFs60 Hz +28%, worse
Qts0.42 −9%
Vas49.1 L −59%, better
BL15.4 T·m +43%, better
Xmax4 mm −9%
Sensitivity95.3 dB −0.7
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.7 out of 519 ratings · Checked 25 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 |
|---|---|---|---|---|
Blue Aran | £94.97, the lowest price | 8+ in stock | Visit shop at Blue Aran | |
Lean Audio | £106.00 | 12% above the lowest price | In stock | Visit shop at Lean Audio |
Lean Business | £106.00 | 12% above the lowest price | Stock not listed | Visit shop at Lean Business |
Parts Express Import VAT and duty may apply | £93.50 | 5 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 7 AugBlue Aran£100.69 → £94.97Down 5.7% from £100.69