Dayton AudioPA310-8
£82.84 · 42% less, betterFs39 Hz −7%
Qts0.29 +7%
Vas91.8 L –
BL18 T·m –
Xmax5 mm −21%, worse
Sensitivity94.6 dB −1.2
12-inch LF driver · 400 W
Beyma 12WR400 8Ω
8 Ω · 45–5000 Hz
£143.67
SteadyParts Express · 2 in stock · Ships from United States · All 5 offers
- Fs
- 42Hz
- Xmax
- 6.3mm
- SPL
- 96dB
- Pe
- 400W
- BL
- 18T·m
- Vd
- 334cm³
- Qts
- 0.27
- Vas
- 91L
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 2 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
frequency response
Frequency response
240 plotted pointsMedium confidence4,189 selected pixels of 4,189 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence3,679 selected pixels of 3,679
Published graphs
Beyma 12WR400 is a 12-inch 8 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.27, Vas 91 L, Xmax 6.3 mm, sensitivity 95.8 dB, plus 334 cm³ Vd and 150 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 £143.67.
The published T/S values agree with each other
Thiele/Small
- Fs
- 42Hz
- Qts
- 0.27
- Qes
- 0.28
- Qms
- 5.6
- Vas
- 91L
- Re
- 5.6Ω
- Le
- 1mH
Motor and cone
- BL
- 18T·m
- Sd
- 530cm²
- Mms
- 63g
- Xmax
- 6.3mm
- Vd †
- 334cm³
Power and response
- Sensitivity †
- 95.8dB
- Manufacturer sensitivity
- 97dB
- Power
- 400W
- Impedance
- 8Ω
- Range
- 45–5000Hz
- EBP †
- 150 · Leans vented
Size and mounting
- Weight
- 5.5kg
Other published values
- Cms
- 0.23mm/N
- Rms
- 3kg/s
- Power Program
- 800
Sensitivity shows 95.8 dB, calculated from the T/S values. Beyma publishes 97.0 dB, 1.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Beyma lists
LF · Primary · 12″
- BL
- 18T·m
- Fs
- 42Hz
- Le
- 1mH
- Re
- 5.6Ω
- Sd
- 530cm²
- Cms
- 0.23mm/N
- Mms
- 63g
- Qes
- 0.28
- Qms
- 5.6
- Qts
- 0.27
- Rms
- 3kg/s
- SPL
- 95.8dB
- Vas
- 91L
- Xmax
- 6.3mm
- Power
- 400W
- Impedance
- 8Ω
- Sensitivity
- 97dB
- Low limit
- 45Hz
- Power Program
- 800
- Calculated sensitivity †
- 95.8dB
- High limit
- 5000Hz
- Manufacturer sensitivity
- 97dB
- Weight
- 5.5kg
02
Compare
Same-size drivers, compared with the 12WR400. Clear differences are green when better and red when worse.
This driver12WR400
Best price
£143.67
Fs
42 Hz
Qts
0.27
Vas
91 L
BL
18 T·m
Xmax
6.3 mm
Sensitivity
95.8 dB
Power
400 W
SB AudienceROSSO-12MW300
£106.55 · 26% less, betterFs48 Hz +14%, worse
Qts0.27 –
Vas85.9 L −6%
BL17.4 T·m −3%
Xmax6.7 mm +6%
Sensitivity97.3 dB +1.5
Beyma12WRS400
£122.29 · 15% less, betterFs42 Hz –
Qts0.29 +7%
Vas91 L –
BL17.4 T·m −3%
Xmax6.3 mm –
Sensitivity95.4 dB –
RCFMB12G301
£142.33 · Same priceFs53 Hz +26%, worse
Qts0.27 –
Vas72 L −21%, better
BL17 T·m −6%
Xmax6 mm −5%
Sensitivity97.9 dB +2.1, better
Beyma12G40
£154.94 · 8% more, worseFs44 Hz +5%
Qts0.30 +11%, worse
Vas81 L −11%, better
BL18.4 T·m –
Xmax7 mm +11%, better
Sensitivity95.6 dB –
LavoceWAN123.00
£163.28 · 14% more, worseFs49 Hz +17%, worse
Qts0.27 –
Vas68.8 L −24%, better
BL17.9 T·m –
Xmax6.9 mm +10%
Sensitivity96.6 dB +0.8
Eighteen Sound12W750
£168.92 · 18% more, worseFs49 Hz +17%, worse
Qts0.28 +4%
Vas73 L −20%, better
BL18 T·m –
Xmax8 mm +27%, better
Sensitivity96.6 dB +0.8
Beyma12MCB700
£174.16 · 21% more, worseFs51 Hz +21%, worse
Qts0.27 –
Vas59.5 L −35%, better
BL20.4 T·m +13%, better
Xmax7 mm +11%, better
Sensitivity96.4 dB +0.6
FaitalPRO12FH530
£177.40 · 23% more, worseFs45 Hz +7%
Qts0.26 −4%
Vas74.1 L −19%, better
BL18.9 T·m +5%
Xmax7.5 mm +19%, better
Sensitivity96 dB –
FaitalPRO12FH500
£180.28 · 25% more, worseFs45 Hz +7%
Qts0.25 −7%
Vas87.3 L −4%
BL17.5 T·m –
Xmax7.5 mm +19%, better
Sensitivity96.9 dB +1.1
RCFMB12N301
£183.23 · 28% more, worseFs54 Hz +29%, worse
Qts0.24 −11%, better
Vas71 L −22%, better
BL19 T·m +6%
Xmax6 mm −5%
Sensitivity98.4 dB +2.6, better
FaitalPRO12FH520
£197.29 · 37% more, worseFs50 Hz +19%, worse
Qts0.29 +7%
Vas73.7 L −19%, better
BL17.3 T·m −4%
Xmax7.3 mm +15%, better
Sensitivity96.9 dB +1.1
Eighteen Sound12ND730
£230.40 · 60% more, worseFs45 Hz +7%
Qts0.23 −15%, better
Vas90 L –
BL19.2 T·m +7%
Xmax6.5 mm +3%
Sensitivity97.4 dB +1.6
Eighteen Sound12MB650
£232.24 · 62% more, worseFs48 Hz +14%, worse
Qts0.23 −15%, better
Vas90 L –
BL19 T·m +6%
Xmax5.5 mm −13%, worse
Sensitivity98.2 dB +2.4, better
Eighteen Sound12ND830
£243.61 · 70% more, worseFs55 Hz +31%, worse
Qts0.28 +4%
Vas72 L −21%, better
BL17.6 T·m –
Xmax6.5 mm +3%
Sensitivity98 dB +2.2, better
Sica12 N 3 PL
£246.12 · 71% more, worseFs46 Hz +10%
Qts0.30 +11%, worse
Vas87.9 L −3%
BL16 T·m −11%, worse
Xmax5.5 mm −13%, worse
Sensitivity96.4 dB +0.6
Beyma12CXA400FE
£337.46 · 135% more, worseFs42 Hz –
Qts0.25 −7%
Vas94 L +3%
BL19.8 T·m +10%, better
Xmax6 mm −5%
Sensitivity96.3 dB +0.5
Beyma12CXA400ND
£349.99 · 144% more, worseFs45 Hz +7%
Qts0.25 −7%
Vas88.5 L –
BL21.4 T·m +19%, better
Xmax6 mm −5%
Sensitivity96.9 dB +1.1
PRV Audio12MB1000FT-4
No current priceFs46 Hz +9%
Qts0.27 –
Vas95.5 L +5%
BL14.5 T·m −19%, worse
Xmax6.1 mm –
Sensitivity97.1 dB +1.3
LavoceNBASS12-30
No current priceFs46 Hz +10%
Qts0.26 −4%
Vas68.6 L −25%, better
BL19.5 T·m +9%
Xmax6.6 mm +5%
Sensitivity96 dB –
PRV Audio12MB2000FT-NDY
No current priceFs55 Hz +31%, worse
Qts0.30 +11%, worse
Vas71.5 L −21%, better
BL17.7 T·m –
Xmax6 mm −5%
Sensitivity97.9 dB +2.1, better
Dayton AudioAPOLLO 12N
No current priceFs38 Hz −10%
Qts0.26 −4%
Vas128.1 L +41%, worse
BL19.2 T·m +7%
Xmax6.8 mm +7%
Sensitivity96.2 dB –
LavoceCAN123.00T
No current priceFs46 Hz +10%
Qts0.22 −19%, better
Vas91 L –
BL18.5 T·m –
Xmax6 mm −5%
Sensitivity97.9 dB +2.1, better
LavoceCAN123.00TH
No current priceFs46 Hz +10%
Qts0.22 −19%, better
Vas91 L –
BL18.5 T·m –
Xmax6 mm −5%
Sensitivity97.9 dB +2.1, better
Oberton12B400
No current priceFs50 Hz +20%, worse
Qts0.25 −8%
Vas74.7 L −18%, better
BL18.4 T·m –
Xmax5.3 mm −17%, worse
Sensitivity97.8 dB +2, better
Oberton12MB35
No current priceFs51 Hz +22%, worse
Qts0.27 –
Vas50.1 L −45%, better
BL20.5 T·m +14%, better
Xmax6.8 mm +7%
Sensitivity96 dB –
No photo
PHL Audio4031
No current priceFs44 Hz +5%
Qts0.27 –
Vas70 L −23%, better
BL20.5 T·m +14%, better
Xmax7.5 mm +19%, better
Sensitivity95.2 dB −0.6
No photo
PHL Audio4031NDU
No current priceFs44 Hz +5%
Qts0.27 –
Vas70 L −23%, better
BL20.5 T·m +14%, better
Xmax7.5 mm +19%, better
Sensitivity95.2 dB −0.6
LavoceCAN143.00T
No current priceFs44 Hz +5%
Qts0.30 +11%, worse
Vas122.3 L +34%, worse
BL18.8 T·m +4%
Xmax6 mm −5%
Sensitivity97.3 dB +1.5
Oberton12B401
No current priceFs47 Hz +11%, worse
Qts0.24 −9%
Vas69.6 L −24%, better
BL19.9 T·m +11%, better
Xmax6.8 mm +7%
Sensitivity96.5 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
- SoundImports5.0 out of 52 ratings · Checked 7 Oct 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 |
|---|---|---|---|---|
Parts Express Import VAT and duty may apply | £143.67, the lowest price | 2 in stock | Visit shop at Parts Express | |
Blue Aran 3-5 months | £143.20 | Usually available in 3-5 months | Visit shop at Blue Aran | |
SoundImports Import VAT and duty may apply | £156.99 | 9.3% above the lowest price | 4 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 13 SepSoundImports£152.75 → £156.99Up 2.8% from £152.75