GRS12PT-8
£48.62 · 69% less, betterFs35 Hz –
Qts0.39 +171%, worse
Vas112.1 L −8%
BL17.4 T·m −29%, worse
Xmax7.8 mm +4%
Sensitivity92.8 dB −4.7, worse
12-inch LF driver · PD series · 76 mm voice coil · 600 W
Precision Devices PD.123C001 8Ω
8 Ω · 45–4000 Hz
£156.00
0.6%Thomann · In stock · All 1 offer
- Fs
- 35Hz
- Xmax
- 7.5mm
- SPL
- 98dB
- Pe
- 600W
- BL
- 24.5T·m
- Vd
- 410cm³
- Qts
- 0.14
- Vas
- 122L
Precision Devices PD.123C001 is a 12-inch 8 ohm LF driver rated at 600 W RMS. The validated T/S data includes Fs 35 Hz, Qts 0.14, Vas 122 L, Xmax 7.5 mm, sensitivity 97.5 dB, plus 410 cm³ Vd and 238 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 £156.00.
The published T/S values agree with each other
Thiele/Small
- Fs
- 35Hz
- Qts
- 0.14
- Qes
- 0.15
- Qms
- 7.5
- Vas
- 122L
- Re
- 5.5Ω
- Le
- 2.17mH
Motor and cone
- BL
- 24.5T·m
- Sd
- 547cm²
- Mms
- 70g
- Xmax
- 7.5mm
- Vd †
- 410cm³
- Voice coil
- 76mm
- Flux density
- 1.20T
Power and response
- Sensitivity †
- 97.5dB
- Manufacturer sensitivity
- 99dB
- Power
- 600W
- Impedance
- 8Ω
- Range
- 45–4000Hz
- EBP †
- 238 · Leans vented
Size and mounting
- Diameter
- 331mm
- Cutout
- 282mm
- Bolt circle
- 318mm
- Depth
- 121mm
- Weight
- 10kg
Other published values
- Cms
- 0.29mm/N
- Power Peak
- 2400
Sensitivity shows 97.5 dB, calculated from the T/S values. Precision Devices publishes 99.0 dB, 1.5 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Precision Devices lists
LF · Primary · 12″
- BL
- 24.5T·m
- Fs
- 35Hz
- Le
- 2.17mH
- Re
- 5.5Ω
- Sd
- 547cm²
- Cms
- 0.29mm/N
- Mms
- 70g
- Qes
- 0.15
- Qms
- 7.5
- Qts
- 0.14
- SPL
- 97.5dB
- Vas
- 122L
- Xmax
- 7.5mm
- Power
- 600W
- Impedance
- 8Ω
- Power Peak
- 2400
- Flux density
- 1.20T
- Sensitivity
- 99dB
- Low limit
- 45Hz
- Calculated sensitivity †
- 97.5dB
- High limit
- 4000Hz
- Manufacturer sensitivity
- 99dB
- Voice coil
- 76mm
- Weight
- 10kg
- Diameter
- 331mm
- Depth
- 121mm
- Cutout
- 282mm
- Bolt circle
- 318mm
02
Compare
Same-size drivers, compared with the PD.123C001. Clear differences are green when better and red when worse.
This driverPD.123C001
Best price
£156.00
Fs
35 Hz
Qts
0.14
Vas
122 L
BL
24.5 T·m
Xmax
7.5 mm
Sensitivity
97.5 dB
Power
600 W
RCFLF12G301
£109.81 · 30% less, betterFs43 Hz +23%, worse
Qts0.22 +53%, worse
Vas97 L −20%, better
BL19 T·m −22%, worse
Xmax7 mm −7%
Sensitivity97.3 dB –
B&C12FW76
£149.88 · 4% lessFs54 Hz +54%, worse
Qts0.18 +25%, worse
Vas45 L −63%, better
BL26.4 T·m +8%
Xmax7 mm −7%
Sensitivity98 dB +0.5
FaitalPRO12PR320
£154.90 · Same priceFs42 Hz +20%, worse
Qts0.37 +157%, worse
Vas113.3 L −7%
BL13.5 T·m −45%, worse
Xmax7.4 mm –
Sensitivity95.4 dB −2.1, worse
FaitalPRO12FH510
£163.54 · 5% moreFs45 Hz +29%, worse
Qts0.24 +67%, worse
Vas81.3 L −33%, better
BL18.9 T·m −23%, worse
Xmax7.5 mm –
Sensitivity96.7 dB −0.8
FaitalPRO12FH500
£180.28 · 16% more, worseFs45 Hz +29%, worse
Qts0.25 +74%, worse
Vas87.3 L −28%, better
BL17.5 T·m −29%, worse
Xmax7.5 mm –
Sensitivity96.9 dB −0.6
B&C12NW76
£200.12 · 28% more, worseFs40 Hz +14%, worse
Qts0.16 +11%, worse
Vas76 L −38%, better
BL25.5 T·m +4%
Xmax8 mm +7%
Sensitivity96.6 dB −0.9
BMS12S330
£204.98 · 31% more, worseFs29 Hz −18%, better
Qts0.24 +67%, worse
Vas85.5 L −30%, better
BL23 T·m −6%
Xmax8 mm +7%
Sensitivity91.1 dB −6.4, worse
REDCATT121NPM
£209.29 · 34% more, worseFs50 Hz +43%, worse
Qts0.16 +11%, worse
Vas59.2 L −51%, better
BL27.8 T·m +13%, better
Xmax1.5 mm −80%, worse
Sensitivity98.7 dB +1.2
CelestionFTR12-4080HDX
£219.00 · 40% more, worseFs61 Hz +74%, worse
Qts0.40 +174%, worse
Vas21.5 L −82%, better
BL24.6 T·m –
Xmax8 mm +7%
Sensitivity92.1 dB −5.4, worse
Beyma12P80FE
£247.64 · 59% more, worseFs48 Hz +37%, worse
Qts0.21 +46%, worse
Vas61 L −50%, better
BL23 T·m −6%
Xmax7.5 mm –
Sensitivity96.9 dB −0.6
REDCATT122NPW
£249.10 · 60% more, worseFs35 Hz –
Qts0.17 +18%, worse
Vas81.9 L −33%, better
BL27 T·m +10%, better
Xmax5.8 mm −23%, worse
Sensitivity95.2 dB −2.3, worse
Eighteen Sound12ND610
£266.75 · 71% more, worseFs46 Hz +31%, worse
Qts0.14 –
Vas94.4 L −23%, better
BL24 T·m –
Xmax3.5 mm −53%, worse
Sensitivity99.9 dB +2.4, better
BMS12N630
£283.85 · 82% more, worseFs29 Hz −18%, better
Qts0.33 +129%, worse
Vas85.5 L −30%, better
BL19.8 T·m −19%, worse
Xmax8 mm +7%
Sensitivity89.6 dB −7.9, worse
BMS12N810
£315.78 · 102% more, worseFs41 Hz +16%, worse
Qts0.16 +11%, worse
Vas89.6 L −27%, better
BL24.5 T·m –
Xmax2.5 mm −67%, worse
Sensitivity97.5 dB –
Sica12 S 4 PL
£334.09 · 114% more, worseFs40 Hz +15%, worse
Qts0.25 +74%, worse
Vas57 L −53%, better
BL23.5 T·m −4%
Xmax7.5 mm –
Sensitivity93.6 dB −3.9, worse
Beyma12P80ND
£375.61 · 141% more, worseFs47 Hz +34%, worse
Qts0.19 +32%, worse
Vas65 L −47%, better
BL23.7 T·m −3%
Xmax7.5 mm –
Sensitivity97.3 dB –
Scanspeak28W/8878T01
£586.08 · 276% more, worseFs22 Hz −37%, better
Qts0.31 +115%, worse
Vas116 L −5%
BL14.9 T·m −39%, worse
Xmax7.5 mm –
Sensitivity87.8 dB −9.7, worse
BMS12N820
No current priceFs38 Hz +8%
Qts0.16 +11%, worse
Vas98.7 L −19%, better
BL24.2 T·m –
Xmax4.5 mm −40%, worse
Sensitivity97.3 dB –
Oberton12NMB600
No current priceFs41 Hz +17%, worse
Qts0.13 −7%
Vas70.8 L −42%, better
BL27.8 T·m +13%, better
Xmax5.3 mm −30%, worse
Sensitivity97.6 dB –
Eighteen Sound12ND940
No current priceFs49 Hz +40%, worse
Qts0.20 +39%, worse
Vas64.8 L −47%, better
BL22.2 T·m −9%
Xmax7.6 mm –
Sensitivity97.8 dB –
No photo
PHL Audio4330NDU
No current priceFs36 Hz –
Qts0.22 +53%, worse
Vas82.6 L −32%, better
BL22 T·m −10%, worse
Xmax8 mm +7%
Sensitivity94.3 dB −3.2, worse
No photo
PHL Audio4031
No current priceFs44 Hz +26%, worse
Qts0.27 +88%, worse
Vas70 L −43%, better
BL20.5 T·m −16%, worse
Xmax7.5 mm –
Sensitivity95.2 dB −2.3, worse
No photo
PHL Audio4031NDU
No current priceFs44 Hz +26%, worse
Qts0.27 +88%, worse
Vas70 L −43%, better
BL20.5 T·m −16%, worse
Xmax7.5 mm –
Sensitivity95.2 dB −2.3, worse
No photo
PHL Audio4021
No current priceFs35 Hz –
Qts0.35 +143%, worse
Vas70 L −43%, better
BL20.5 T·m −16%, worse
Xmax7.5 mm –
Sensitivity91.2 dB −6.3, worse
RCFLF12G801
No current priceFs43 Hz +23%, worse
Qts0.22 +53%, worse
Vas97 L −20%, better
BL19 T·m −22%, worse
Xmax7 mm −7%
Sensitivity97.3 dB –
RCFLF12P901
No current priceFs43 Hz +23%, worse
Qts0.22 +53%, worse
Vas97 L −20%, better
BL19 T·m −22%, worse
Xmax7 mm −7%
Sensitivity97.3 dB –
Oberton12NB450
No current priceFs46 Hz +33%, worse
Qts0.20 +42%, worse
Vas72.6 L −41%, better
BL20.3 T·m −17%, worse
Xmax7.8 mm +3%
Sensitivity97.5 dB –
RCFLF12P903
No current priceFs47 Hz +34%, worse
Qts0.23 +60%, worse
Vas65 L −47%, better
BL22.1 T·m −10%
Xmax7 mm −7%
Sensitivity96.5 dB −1
RCFMB12N405
No current priceFs52 Hz +49%, worse
Qts0.20 +39%, worse
Vas53 L −57%, better
BL23.5 T·m −4%
Xmax7 mm −7%
Sensitivity97.5 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann4.8 out of 54 ratings · Checked 26 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 | £156.00, the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 4 Sep
Recent changes
- 22 OctThomann£157.00 → £156.00Down 0.6% from £157.00
- 14 OctThomann£158.00 → £157.00Down 0.6% from £158.00
- 6 OctThomann£160.00 → £158.00Down 1.3% from £160.00