13-inch LF driver · WO34 series · 76 mm voice coil · 200 W

SB Acoustics WO34HC-8 8Ω

Name: SB Acoustics WO34HC-8 8 Ohm
Brand: SB Acoustics
SKU: WO34HC-8

8 Ω

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 20Hz
Xmax: 8.3mm
SPL: 90dB
Pe: 200W
BL: 19T·m
Vd: 486cm³
Qts: 0.29
Vas: 238L

See all 21 specs

Curve provenanceInspect 2 traces

These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works

30 degrees
Frequency response
Trace datasheet-response-trace-poc/v1
216 plotted pointsMedium confidence949 selected pixels of 3,107
Manufacturer datasheet, page 1
60 degrees
Frequency response
Trace datasheet-response-trace-poc/v1
221 plotted pointsMedium confidence851 selected pixels of 2,771
Manufacturer datasheet, page 1

Published graphs

SB Acoustics WO34HC-8 manufacturer graph 1

Specifications

Published by SB Acoustics

Manufacturer page

Datasheet PDF

SB Acoustics WO34HC-8 is a 13-inch 8 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 20 Hz, Qts 0.29, Vas 238 L, Xmax 8.3 mm, sensitivity 90.2 dB, plus 486 cm³ Vd and 67 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.

The published T/S values agree with each other

Thiele/Small

Fs: 20Hz
Qts: 0.29
Qes: 0.30
Qms: 5.4
Vas: 238L
Re: 6.8Ω
Le: 1mH

Motor and cone

BL: 19T·m
Sd: 585cm²
Mms: 127g
Xmax: 8.3mm
Vd †: 486cm³
Voice coil: 76mm
Flux density: 1.17T

Power and response

Sensitivity †: 90.2dB
Manufacturer sensitivity: 89.5dB
Power: 200W
Impedance: 8Ω
EBP †: 67 · Sealed or vented

Size and mounting

Weight: 9.5kg

Other published values

Cms: 0.49mm/N

† Calculated by bits from the published values

What this validation status means

Everything else SB Acoustics lists

LF · Primary · 13″

BL: 19T·m
Fs: 20Hz
Le: 1mH
Re: 6.8Ω
Sd: 585cm²
Cms: 0.49mm/N
Mms: 127g
Qes: 0.30
Qms: 5.4
Qts: 0.29
SPL: 90.2dB
Vas: 238L
Xmax: 8.3mm
Power: 200W
Impedance: 8Ω
Flux density: 1.17T
Sensitivity: 89.5dB
Calculated sensitivity †: 90.2dB
Manufacturer sensitivity: 89.5dB
Voice coil: 76mm
Weight: 9.5kg

Compare

Same-size drivers, compared with the WO34HC-8. Clear differences are green when better and red when worse.

This driverWO34HC-8

Best price

–

20 Hz

Qts

0.29

Vas

238 L

19 T·m

Xmax

8.3 mm

Sensitivity

90.2 dB

Power

200 W

Beyma12G40

£153.72

Fs44 Hz +118%

Qts0.30 +3%

Vas81 L −66%

BL18.4 T·m −3%

Xmax7 mm −16%

Sensitivity95.6 dB +5.4

Eighteen Sound12W750

£166.62

Fs49 Hz +143%

Qts0.28 −3%

Vas73 L −69%

BL18 T·m −5%

Xmax8 mm −4%

Sensitivity96.6 dB +6.4

Beyma12MCB700

£174.16

Fs51 Hz +152%

Qts0.27 −7%

Vas59.5 L −75%

BL20.4 T·m +7%

Xmax7 mm −16%

Sensitivity96.4 dB +6.2

FaitalPRO12FH530

£175.00

Fs45 Hz +123%

Qts0.26 −10%

Vas74.1 L −69%

BL18.9 T·m –

Xmax7.5 mm −10%

Sensitivity96 dB +5.8

Eighteen Sound12LW800

£189.95

Fs52 Hz +157%

Qts0.29 –

Vas48 L −80%

BL21.3 T·m +12%

Xmax6.5 mm −22%

Sensitivity95.6 dB +5.4

B&C12PS100

£193.00

Fs44 Hz +118%

Qts0.27 −7%

Vas47 L −80%

BL22.5 T·m +18%

Xmax8 mm −4%

Sensitivity93.4 dB +3.2

FaitalPRO12FH520

£197.29

Fs50 Hz +148%

Qts0.29 –

Vas73.7 L −69%

BL17.3 T·m −9%

Xmax7.3 mm −13%

Sensitivity96.9 dB +6.7

B&C12NDL88

£208.49

Fs51 Hz +152%

Qts0.27 −7%

Vas52 L −78%

BL19.9 T·m +5%

Xmax8 mm −4%

Sensitivity95.8 dB +5.6

ETON12-612/C8/62 RP

£209.29

Fs30 Hz +49%

Qts0.32 +10%

Vas134 L −44%

BL15.7 T·m −17%

Xmax8.5 mm –

Sensitivity92.3 dB +2.1

SB AcousticsSB34NRXL75-8

£218.43

Fs22 Hz +9%

Qts0.28 −3%

Vas205 L −14%

BL16.6 T·m −13%

Xmax10 mm +20%

Sensitivity90.8 dB +0.6

Beyma14MC700ND

£229.73

Fs51 Hz +152%

Qts0.28 −3%

Vas78 L −67%

BL22 T·m +16%

Xmax7 mm −16%

Sensitivity97.4 dB +7.2

Eighteen Sound12ND830

£240.31

Fs55 Hz +172%

Qts0.28 −3%

Vas72 L −70%

BL17.6 T·m −7%

Xmax6.5 mm −22%

Sensitivity98 dB +7.8

Eighteen Sound12LW1400

£260.72

Fs45 Hz +123%

Qts0.30 +3%

Vas55 L −77%

BL20 T·m +5%

Xmax8.3 mm –

Sensitivity94 dB +3.8

SB AcousticsWO34HC-4

£279.42

Fs20 Hz –

Qts0.23 −21%

Vas233 L –

BL15.1 T·m −21%

Xmax8.3 mm –

Sensitivity90.8 dB +0.6

Eighteen Sound12NTLW3500

£285.52

Fs53 Hz +162%

Qts0.33 +14%

Vas45 L −81%

BL19.5 T·m –

Xmax8.3 mm –

Sensitivity94.8 dB +4.6

VisatonTIW 300

£411.54

Fs25 Hz +24%

Qts0.28 −3%

Vas160 L −33%

BL16.5 T·m −13%

Xmax7.5 mm −10%

Sensitivity91.2 dB +1

Eighteen Sound12NCX910

£436.54

Fs57 Hz +182%

Qts0.30 +3%

Vas58 L −76%

BL18.1 T·m −5%

Xmax6.9 mm −17%

Sensitivity97.4 dB +7.2

Eighteen Sound12NCX910N

£478.98

Fs57 Hz +182%

Qts0.30 +3%

Vas58 L −76%

BL18.1 T·m −5%

Xmax6.9 mm −17%

Sensitivity97.4 dB +7.2

Scanspeak32W/8878T01

£586.08

Fs19 Hz −5%

Qts0.33 +14%

Vas234 L –

BL15.6 T·m −18%

Xmax7.5 mm −10%

Sensitivity88.7 dB −1.5

Scanspeak32W/4878T01

£586.08

Fs23 Hz +14%

Qts0.28 −3%

Vas170 L −29%

BL13 T·m −32%

Xmax7 mm −16%

Sensitivity90.4 dB –

Scanspeak32W/8878T11

£644.69

Fs21 Hz +4%

Qts0.26 −10%

Vas235 L –

BL16.5 T·m −13%

Xmax7.5 mm −10%

Sensitivity90.9 dB +0.7

B&C14NDL76

No current price

Fs41 Hz +103%

Qts0.30 +3%

Vas123 L −48%

BL19 T·m –

Xmax8 mm −4%

Sensitivity96.4 dB +6.2

B&C14CXN76

No current price

Fs45 Hz +123%

Qts0.28 −3%

Vas131 L −45%

BL18.4 T·m −3%

Xmax8 mm −4%

Sensitivity98.2 dB +8

BMS12N804

No current price

Fs39 Hz +93%

Qts0.29 –

Vas71 L −70%

BL20.4 T·m +7%

Xmax8 mm −4%

Sensitivity93.4 dB +3.2

B&C14NDL88

No current price

Fs45 Hz +123%

Qts0.30 +3%

Vas102 L −57%

BL19.9 T·m +5%

Xmax8 mm −4%

Sensitivity96.8 dB +6.6

Audio Technology12 B 77 25 10

No current price

Fs25 Hz +24%

Qts0.30 +3%

Vas250 L +5%

BL12.4 T·m −35%

Xmax8.6 mm +4%

Sensitivity92.6 dB +2.4

No photo

PHL Audio4031

No current price

Fs44 Hz +118%

Qts0.27 −7%

Vas70 L −71%

BL20.5 T·m +8%

Xmax7.5 mm −10%

Sensitivity95.2 dB +5

No photo

PHL Audio4031NDU

No current price

Fs44 Hz +118%

Qts0.27 −7%

Vas70 L −71%

BL20.5 T·m +8%

Xmax7.5 mm −10%

Sensitivity95.2 dB +5

Eighteen Sound12NCX910BE

No current price

Fs57 Hz +182%

Qts0.30 +3%

Vas58 L −76%

BL18.1 T·m −5%

Xmax6.9 mm −17%

Sensitivity97.4 dB +7.2

Oberton12NB601

No current price

Fs50 Hz +150%

Qts0.30 +5%

Vas38.7 L −84%

BL22.9 T·m +21%

Xmax8.8 mm +5%

Sensitivity94 dB +3.8

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
SoundImports Checked 26 Oct 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£309.76		Back order	Visit shop at SoundImports

bits00 AUDIO

13-inch LF driver · WO34 series · 76 mm voice coil · 200 W

SB Acoustics WO34HC-8 8Ω

8 Ω

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 20Hz
Xmax: 8.3mm
SPL: 90dB
Pe: 200W
BL: 19T·m
Vd: 486cm³
Qts: 0.29
Vas: 238L

See all 21 specs

Curve provenanceInspect 2 traces

These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works

30 degrees
Frequency response
Trace datasheet-response-trace-poc/v1
216 plotted pointsMedium confidence949 selected pixels of 3,107
Manufacturer datasheet, page 1
60 degrees
Frequency response
Trace datasheet-response-trace-poc/v1
221 plotted pointsMedium confidence851 selected pixels of 2,771
Manufacturer datasheet, page 1

Published graphs

Specifications

Published by SB Acoustics

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 20Hz
Qts: 0.29
Qes: 0.30
Qms: 5.4
Vas: 238L
Re: 6.8Ω
Le: 1mH

Motor and cone

BL: 19T·m
Sd: 585cm²
Mms: 127g
Xmax: 8.3mm
Vd †: 486cm³
Voice coil: 76mm
Flux density: 1.17T

Power and response

Sensitivity †: 90.2dB
Manufacturer sensitivity: 89.5dB
Power: 200W
Impedance: 8Ω
EBP †: 67 · Sealed or vented

Size and mounting

Weight: 9.5kg

Other published values

Cms: 0.49mm/N

† Calculated by bits from the published values

What this validation status means

Everything else SB Acoustics lists

LF · Primary · 13″

BL: 19T·m
Fs: 20Hz
Le: 1mH
Re: 6.8Ω
Sd: 585cm²
Cms: 0.49mm/N
Mms: 127g
Qes: 0.30
Qms: 5.4
Qts: 0.29
SPL: 90.2dB
Vas: 238L
Xmax: 8.3mm
Power: 200W
Impedance: 8Ω
Flux density: 1.17T
Sensitivity: 89.5dB
Calculated sensitivity †: 90.2dB
Manufacturer sensitivity: 89.5dB
Voice coil: 76mm
Weight: 9.5kg

Compare

Same-size drivers, compared with the WO34HC-8. Clear differences are green when better and red when worse.

This driverWO34HC-8

Best price

–

20 Hz

Qts

0.29

Vas

238 L

19 T·m

Xmax

8.3 mm

Sensitivity

90.2 dB

Power

200 W

Beyma12G40

£153.72

Fs44 Hz +118%

Qts0.30 +3%

Vas81 L −66%

BL18.4 T·m −3%

Xmax7 mm −16%

Sensitivity95.6 dB +5.4

Eighteen Sound12W750

£166.62

Fs49 Hz +143%

Qts0.28 −3%

Vas73 L −69%

BL18 T·m −5%

Xmax8 mm −4%

Sensitivity96.6 dB +6.4

Beyma12MCB700

£174.16

Fs51 Hz +152%

Qts0.27 −7%

Vas59.5 L −75%

BL20.4 T·m +7%

Xmax7 mm −16%

Sensitivity96.4 dB +6.2

FaitalPRO12FH530

£175.00

Fs45 Hz +123%

Qts0.26 −10%

Vas74.1 L −69%

BL18.9 T·m –

Xmax7.5 mm −10%

Sensitivity96 dB +5.8

Eighteen Sound12LW800

£189.95

Fs52 Hz +157%

Qts0.29 –

Vas48 L −80%

BL21.3 T·m +12%

Xmax6.5 mm −22%

Sensitivity95.6 dB +5.4

B&C12PS100

£193.00

Fs44 Hz +118%

Qts0.27 −7%

Vas47 L −80%

BL22.5 T·m +18%

Xmax8 mm −4%

Sensitivity93.4 dB +3.2

FaitalPRO12FH520

£197.29

Fs50 Hz +148%

Qts0.29 –

Vas73.7 L −69%

BL17.3 T·m −9%

Xmax7.3 mm −13%

Sensitivity96.9 dB +6.7

B&C12NDL88

£208.49

Fs51 Hz +152%

Qts0.27 −7%

Vas52 L −78%

BL19.9 T·m +5%

Xmax8 mm −4%

Sensitivity95.8 dB +5.6

ETON12-612/C8/62 RP

£209.29

Fs30 Hz +49%

Qts0.32 +10%

Vas134 L −44%

BL15.7 T·m −17%

Xmax8.5 mm –

Sensitivity92.3 dB +2.1

SB AcousticsSB34NRXL75-8

£218.43

Fs22 Hz +9%

Qts0.28 −3%

Vas205 L −14%

BL16.6 T·m −13%

Xmax10 mm +20%

Sensitivity90.8 dB +0.6

Beyma14MC700ND

£229.73

Fs51 Hz +152%

Qts0.28 −3%

Vas78 L −67%

BL22 T·m +16%

Xmax7 mm −16%

Sensitivity97.4 dB +7.2

Eighteen Sound12ND830

£240.31

Fs55 Hz +172%

Qts0.28 −3%

Vas72 L −70%

BL17.6 T·m −7%

Xmax6.5 mm −22%

Sensitivity98 dB +7.8

Eighteen Sound12LW1400

£260.72

Fs45 Hz +123%

Qts0.30 +3%

Vas55 L −77%

BL20 T·m +5%

Xmax8.3 mm –

Sensitivity94 dB +3.8

SB AcousticsWO34HC-4

£279.42

Fs20 Hz –

Qts0.23 −21%

Vas233 L –

BL15.1 T·m −21%

Xmax8.3 mm –

Sensitivity90.8 dB +0.6

Eighteen Sound12NTLW3500

£285.52

Fs53 Hz +162%

Qts0.33 +14%

Vas45 L −81%

BL19.5 T·m –

Xmax8.3 mm –

Sensitivity94.8 dB +4.6

VisatonTIW 300

£411.54

Fs25 Hz +24%

Qts0.28 −3%

Vas160 L −33%

BL16.5 T·m −13%

Xmax7.5 mm −10%

Sensitivity91.2 dB +1

Eighteen Sound12NCX910

£436.54

Fs57 Hz +182%

Qts0.30 +3%

Vas58 L −76%

BL18.1 T·m −5%

Xmax6.9 mm −17%

Sensitivity97.4 dB +7.2

Eighteen Sound12NCX910N

£478.98

Fs57 Hz +182%

Qts0.30 +3%

Vas58 L −76%

BL18.1 T·m −5%

Xmax6.9 mm −17%

Sensitivity97.4 dB +7.2

Scanspeak32W/8878T01

£586.08

Fs19 Hz −5%

Qts0.33 +14%

Vas234 L –

BL15.6 T·m −18%

Xmax7.5 mm −10%

Sensitivity88.7 dB −1.5

Scanspeak32W/4878T01

£586.08

Fs23 Hz +14%

Qts0.28 −3%

Vas170 L −29%

BL13 T·m −32%

Xmax7 mm −16%

Sensitivity90.4 dB –

Scanspeak32W/8878T11

£644.69

Fs21 Hz +4%

Qts0.26 −10%

Vas235 L –

BL16.5 T·m −13%

Xmax7.5 mm −10%

Sensitivity90.9 dB +0.7

B&C14NDL76

No current price

Fs41 Hz +103%

Qts0.30 +3%

Vas123 L −48%

BL19 T·m –

Xmax8 mm −4%

Sensitivity96.4 dB +6.2

B&C14CXN76

No current price

Fs45 Hz +123%

Qts0.28 −3%

Vas131 L −45%

BL18.4 T·m −3%

Xmax8 mm −4%

Sensitivity98.2 dB +8

BMS12N804

No current price

Fs39 Hz +93%

Qts0.29 –

Vas71 L −70%

BL20.4 T·m +7%

Xmax8 mm −4%

Sensitivity93.4 dB +3.2

B&C14NDL88

No current price

Fs45 Hz +123%

Qts0.30 +3%

Vas102 L −57%

BL19.9 T·m +5%

Xmax8 mm −4%

Sensitivity96.8 dB +6.6

Audio Technology12 B 77 25 10

No current price

Fs25 Hz +24%

Qts0.30 +3%

Vas250 L +5%

BL12.4 T·m −35%

Xmax8.6 mm +4%

Sensitivity92.6 dB +2.4

No photo

PHL Audio4031

No current price

Fs44 Hz +118%

Qts0.27 −7%

Vas70 L −71%

BL20.5 T·m +8%

Xmax7.5 mm −10%

Sensitivity95.2 dB +5

No photo

PHL Audio4031NDU

No current price

Fs44 Hz +118%

Qts0.27 −7%

Vas70 L −71%

BL20.5 T·m +8%

Xmax7.5 mm −10%

Sensitivity95.2 dB +5

Eighteen Sound12NCX910BE

No current price

Fs57 Hz +182%

Qts0.30 +3%

Vas58 L −76%

BL18.1 T·m −5%

Xmax6.9 mm −17%

Sensitivity97.4 dB +7.2

Oberton12NB601

No current price

Fs50 Hz +150%

Qts0.30 +5%

Vas38.7 L −84%

BL22.9 T·m +21%

Xmax8.8 mm +5%

Sensitivity94 dB +3.8

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
SoundImports Checked 26 Oct 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£309.76		Back order	Visit shop at SoundImports