RCFLF12G301
£109.81 · 61% less, betterFs43 Hz +115%, worse
Qts0.22 −4%
Vas97 L −58%, better
BL19 T·m +26%, better
Xmax7 mm −16%, worse
Sensitivity97.3 dB +6.5, better
13-inch LF driver · WO34 series · 76 mm voice coil · 200 W
SB Acoustics WO34HC-4 4Ω
4 Ω
£279.42
SteadyLean Audio · 2 in stock · All 2 offers
- Fs
- 20Hz
- Xmax
- 8.3mm
- SPL
- 91dB
- Pe
- 200W
- BL
- 15.1T·m
- Vd
- 486cm³
- Qts
- 0.23
- Vas
- 233L
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 3 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
30 degrees
Frequency response
216 plotted pointsMedium confidence891 selected pixels of 3,401 - Trace datasheet-response-trace-poc/v1
60 degrees
Frequency response
240 plotted pointsMedium confidence1,093 selected pixels of 3,129 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,932 selected pixels of 5,737
Published graphs
SB Acoustics WO34HC-4 is a 13-inch 4 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 20 Hz, Qts 0.23, Vas 233 L, Xmax 8.3 mm, sensitivity 90.8 dB, plus 486 cm³ Vd and 80 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 £279.42.
The published T/S values agree with each other
Thiele/Small
- Fs
- 20Hz
- Qts
- 0.23
- Qes
- 0.25
- Qms
- 5.5
- Vas
- 233L
- Re
- 3.5Ω
- Le
- 0.70mH
Motor and cone
- BL
- 15.1T·m
- Sd
- 585cm²
- Mms
- 132g
- Xmax
- 8.3mm
- Vd †
- 486cm³
- Voice coil
- 76mm
- Flux density
- 1.17T
Power and response
- Sensitivity †
- 90.8dB
- Manufacturer sensitivity
- 92.5dB
- Power
- 200W
- Impedance
- 4Ω
- EBP †
- 80 · Sealed or vented
Size and mounting
- Weight
- 9.6kg
Other published values
- Cms
- 0.48mm/N
Sensitivity shows 90.8 dB, calculated from the T/S values. SB Acoustics publishes 92.5 dB, 1.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else SB Acoustics lists
LF · Primary · 13″
- BL
- 15.1T·m
- Fs
- 20Hz
- Le
- 0.70mH
- Re
- 3.5Ω
- Sd
- 585cm²
- Cms
- 0.48mm/N
- Mms
- 132g
- Qes
- 0.25
- Qms
- 5.5
- Qts
- 0.23
- SPL
- 90.8dB
- Vas
- 233L
- Xmax
- 8.3mm
- Power
- 200W
- Impedance
- 4Ω
- Flux density
- 1.17T
- Sensitivity
- 92.5dB
- Calculated sensitivity †
- 90.8dB
- Manufacturer sensitivity
- 92.5dB
- Voice coil
- 76mm
- Weight
- 9.6kg
02
Compare
Same-size drivers, compared with the WO34HC-4. Clear differences are green when better and red when worse.
This driverWO34HC-4
Best price
£279.42
Fs
20 Hz
Qts
0.23
Vas
233 L
BL
15.1 T·m
Xmax
8.3 mm
Sensitivity
90.8 dB
Power
200 W
EminenceKAPPA PRO-12A
£130.90 · 53% less, betterFs37 Hz +85%, worse
Qts0.24 +4%
Vas121 L −48%, better
BL17.3 T·m +15%, better
Xmax4.8 mm −42%, worse
Sensitivity95.9 dB +5.1, better
Eighteen Sound12W750
£166.62 · 40% less, betterFs55 Hz +175%, worse
Qts0.27 +17%, worse
Vas58 L −75%, better
BL15.5 T·m –
Xmax7 mm −16%, worse
Sensitivity97.4 dB +6.6, better
FaitalPRO12FH500
£173.32 · 38% less, betterFs45 Hz +125%, worse
Qts0.22 −4%
Vas80.3 L −66%, better
BL15.5 T·m –
Xmax7.3 mm −13%, worse
Sensitivity97.1 dB +6.3, better
FaitalPRO12FH510
£185.88 · 33% less, betterFs45 Hz +125%, worse
Qts0.25 +9%
Vas75.2 L −68%, better
BL16.3 T·m +8%
Xmax7.5 mm −10%
Sensitivity96.2 dB +5.4, better
FaitalPRO12FH520
£192.23 · 31% less, betterFs50 Hz +150%, worse
Qts0.27 +17%, worse
Vas65.5 L −72%, better
BL15.3 T·m –
Xmax7 mm −16%, worse
Sensitivity96.7 dB +5.9, better
B&C12TBX100
£204.30 · 27% less, betterFs44 Hz +120%, worse
Qts0.23 –
Vas41.1 L −82%, better
BL22.9 T·m +52%, better
Xmax9 mm +8%
Sensitivity93.7 dB +2.9, better
B&C12NDL88
£204.88 · 27% less, betterFs48 Hz +140%, worse
Qts0.24 +4%
Vas57 L −76%, better
BL16.6 T·m +10%
Xmax8 mm −4%
Sensitivity96 dB +5.2, better
BMS12S330
£204.98 · 27% less, betterFs29 Hz +43%, worse
Qts0.24 +4%
Vas85.5 L −63%, better
BL23 T·m +52%, better
Xmax8 mm −4%
Sensitivity91.1 dB –
SB AcousticsSB34NRXL75-8
£218.43 · 22% less, betterFs22 Hz +10%, worse
Qts0.28 +22%, worse
Vas205 L −12%, better
BL16.6 T·m +10%
Xmax10 mm +20%, better
Sensitivity90.8 dB –
Eighteen Sound12ND730
£230.40 · 18% less, betterFs45 Hz +125%, worse
Qts0.23 –
Vas90 L −61%, better
BL19.2 T·m +27%, better
Xmax6.5 mm −22%, worse
Sensitivity97.4 dB +6.6, better
Eighteen Sound12ND830
£240.31 · 14% less, betterFs58 Hz +190%, worse
Qts0.24 +4%
Vas63 L −73%, better
BL13.7 T·m −9%
Xmax6.5 mm −22%, worse
Sensitivity98.9 dB +8.1, better
B&C14NA100
£279.65 · Same priceFs43 Hz +115%, worse
Qts0.23 –
Vas99.5 L −57%, better
BL23.5 T·m +56%, better
Xmax8.8 mm +6%
Sensitivity97.2 dB +6.4, better
VisatonTIW 300
£411.54 · 47% more, worseFs25 Hz +25%, worse
Qts0.28 +22%, worse
Vas160 L −31%, better
BL16.5 T·m +9%
Xmax7.5 mm −10%
Sensitivity91.2 dB –
Beyma12XA30ND
£493.97 · 77% more, worseFs35 Hz +75%, worse
Qts0.21 −9%
Vas172 L −26%, better
BL15.3 T·m –
Xmax4 mm −52%, worse
Sensitivity97.3 dB +6.5, better
Scanspeak32W/8878T01
£586.08 · 110% more, worseFs19 Hz −4%
Qts0.33 +43%, worse
Vas234 L –
BL15.6 T·m +3%
Xmax7.5 mm −10%
Sensitivity88.7 dB −2.1, worse
Scanspeak32W/8878T11
£644.69 · 131% more, worseFs21 Hz +5%
Qts0.26 +13%, worse
Vas235 L –
BL16.5 T·m +9%
Xmax7.5 mm −10%
Sensitivity90.9 dB –
Scanspeak32W/4878T11
£644.69 · 131% more, worseFs24 Hz +20%, worse
Qts0.21 −9%
Vas185 L −21%, better
BL14 T·m −7%
Xmax7 mm −16%, worse
Sensitivity92.7 dB +1.9
B&C14NDL88
No current priceFs40 Hz +100%, worse
Qts0.23 –
Vas128 L −45%, better
BL16.9 T·m +12%, better
Xmax8 mm −4%
Sensitivity97.4 dB +6.6, better
Audio Technology12 D 77 25 10 KAP
No current priceFs19 Hz −5%
Qts0.25 +9%
Vas340 L +46%, worse
BL14 T·m −7%
Xmax8.6 mm +4%
Sensitivity91.6 dB +0.8
Acoustic EleganceTD12H-4
No current priceFs27 Hz +34%, worse
Qts0.23 –
Vas160 L −31%, better
BL14.4 T·m −5%
Xmax14 mm +69%, better
Sensitivity92.9 dB +2.1, better
B&C14CXN88
No current priceFs44 Hz +120%, worse
Qts0.25 +9%
Vas116 L −50%, better
BL16.6 T·m +10%
Xmax9 mm +8%
Sensitivity97.8 dB +7, better
Oberton12B450
No current priceFs46 Hz +131%, worse
Qts0.23 –
Vas71.8 L −69%, better
BL19.3 T·m +28%, better
Xmax7.8 mm −7%
Sensitivity96.7 dB +5.9, better
SB AcousticsWO34HC-8
No current priceFs20 Hz –
Qts0.29 +26%, worse
Vas238 L –
BL19 T·m +26%, better
Xmax8.3 mm –
Sensitivity90.2 dB −0.6
Precision DevicesPD.124NR1-LR
No current priceFs45 Hz +125%, worse
Qts0.23 –
Vas78 L −67%, better
BL22 T·m +46%, better
Xmax8.5 mm –
Sensitivity96.9 dB +6.1, better
Acoustic EleganceTD12H-8
No current priceFs27 Hz +34%, worse
Qts0.23 –
Vas160 L −31%, better
BL19.7 T·m +30%, better
Xmax14 mm +69%, better
Sensitivity92.9 dB +2.1, better
No photo
PHL Audio4330NDU
No current priceFs36 Hz +80%, worse
Qts0.22 −4%
Vas82.6 L −65%, better
BL22 T·m +46%, better
Xmax8 mm −4%
Sensitivity94.3 dB +3.5, better
Acoustic EleganceTD12M-8
No current priceFs38 Hz +91%, worse
Qts0.25 +9%
Vas140 L −40%, better
BL17 T·m +13%, better
Xmax6 mm −28%, worse
Sensitivity96.6 dB +5.8, better
RCFLF12G801
No current priceFs43 Hz +115%, worse
Qts0.22 −4%
Vas97 L −58%, better
BL19 T·m +26%, better
Xmax7 mm −16%, worse
Sensitivity97.3 dB +6.5, better
RCFLF12P901
No current priceFs43 Hz +115%, worse
Qts0.22 −4%
Vas97 L −58%, better
BL19 T·m +26%, better
Xmax7 mm −16%, worse
Sensitivity97.3 dB +6.5, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Audio | £279.42, the lowest price | 2 in stock | Visit shop at Lean Audio | |
SoundImports Import VAT and duty may apply | £309.76 | 11% above the lowest price | Back order | Visit shop at SoundImports |
Best price over time
Tracked since 13 Jun