LavoceWSF061.52
£26.27 · 61% less, betterFs91 Hz +7%
Qts0.34 –
Vas6.6 L −20%, better
BL10.8 T·m +11%, better
Xmax3.8 mm −30%, worse
Sensitivity93.4 dB –
6-inch LF driver · 51 mm voice coil
PRV Audio 6MB550FT 8Ω
8 Ω · 85–7500 Hz
£67.26
SteadyParts Express · 8 in stock · Ships from United States · All 1 offer
- Fs
- 85Hz
- Xmax
- 5.4mm
- SPL
- 93dB
- Pe
- –
- BL
- 9.8T·m
- Vd
- 77cm³
- Qts
- 0.34
- Vas
- 8L
PRV Audio 6MB550FT is a 6-inch 8 ohm LF driver. The validated T/S data includes Fs 85 Hz, Qts 0.34, Vas 8.2 L, Xmax 5.4 mm, sensitivity 93.3 dB, plus 77 cm³ Vd and 223 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 £67.26.
The published T/S values agree with each other
Thiele/Small
- Fs
- 85Hz
- Qts
- 0.34
- Qes
- 0.38
- Qms
- 3.8
- Vas
- 8.2L
- Re
- 5.6Ω
- Le
- 0.42mH
Motor and cone
- BL
- 9.8T·m
- Sd
- 143cm²
- Mms
- 12g
- Xmax
- 5.4mm
- Vd †
- 77cm³
- Voice coil
- 51mm
Power and response
- Sensitivity †
- 93.3dB
- Manufacturer sensitivity
- 94.5dB
- Impedance
- 8Ω
- Range
- 85–7500Hz
- Crossover
- 95Hz
- EBP †
- 223 · Leans vented
Size and mounting
- Diameter
- 164.5mm
- Cutout
- 142mm
- Depth
- 92.5mm
- Weight
- 2.7kg
Other published values
- Cms
- 0.29mm/N
Other dimensions
- Mounting Depth
- 84.5
Sensitivity shows 93.3 dB, calculated from the T/S values. PRV Audio publishes 94.5 dB, 1.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else PRV Audio lists
LF · Primary · 6″
- BL
- 9.8T·m
- Fs
- 85Hz
- Le
- 0.42mH
- Re
- 5.6Ω
- Sd
- 143cm²
- Cms
- 0.29mm/N
- Mms
- 12g
- Qes
- 0.38
- Qms
- 3.8
- Qts
- 0.34
- SPL
- 93.3dB
- Vas
- 8.2L
- Xmax
- 5.4mm
- Impedance
- 8Ω
- Sensitivity
- 94.5dB
- Low limit
- 85Hz
- Calculated sensitivity †
- 93.3dB
- High limit
- 7500Hz
- Manufacturer sensitivity
- 94.5dB
- Voice coil
- 51mm
- Crossover
- 95Hz
- Weight
- 2.7kg
- Diameter
- 164.5mm
- Depth
- 92.5mm
- Mounting Depth
- 84.5
- Cutout
- 142mm
02
Compare
Same-size drivers, compared with the 6MB550FT. Clear differences are green when better and red when worse.
This driver6MB550FT
Best price
£67.26
Fs
85 Hz
Qts
0.34
Vas
8.2 L
BL
9.8 T·m
Xmax
5.4 mm
Sensitivity
93.3 dB
Power
–
FaitalPRO6FE400
£37.20 · 45% less, betterFs100 Hz +18%, worse
Qts0.36 +6%
Vas5 L −39%, better
BL10.5 T·m +7%
Xmax4.8 mm −12%, worse
Sensitivity93 dB –
Beyma6CMV2
£40.92 · 39% less, betterFs90 Hz +6%
Qts0.34 –
Vas6.5 L −21%, better
BL9.4 T·m −4%
Xmax5.7 mm +6%
Sensitivity92.3 dB −1
Dayton AudioDCS165-4
£48.61 · 28% less, betterFs36 Hz −58%, better
Qts0.34 –
Vas12.1 L +47%, worse
BL9.2 T·m −6%
Xmax6 mm +11%, better
Sensitivity83.9 dB −9.4, worse
CelestionTFX0615
£58.53 · 13% less, betterFs97 Hz +14%, worse
Qts0.38 +11%, worse
Vas7.2 L −13%, better
BL9.8 T·m –
Xmax5.3 mm –
Sensitivity93.8 dB +0.5
CIAREFXI6
£62.80 · 7% less, betterFs70 Hz −18%, better
Qts0.33 –
Vas8 L –
BL10.6 T·m +8%
Xmax5.3 mm –
Sensitivity90.7 dB −2.6, worse
Beyma5P200FE
£63.23 · 6% less, betterFs72 Hz −15%, better
Qts0.33 –
Vas5.7 L −31%, better
BL8.5 T·m −13%, worse
Xmax5.7 mm +6%
Sensitivity89.9 dB −3.4, worse
SB AudienceROSSO-6MW150D
£67.15 · Same priceFs66 Hz −22%, better
Qts0.32 −6%
Vas8.8 L +7%
BL11.6 T·m +19%, better
Xmax5.2 mm –
Sensitivity90.9 dB −2.4, worse
FaitalPRO6PR160
£82.89 · 23% more, worseFs90 Hz +6%
Qts0.33 –
Vas5.9 L −28%, better
BL11 T·m +13%, better
Xmax5 mm −7%
Sensitivity92.9 dB –
B&C6PS44
£86.62 · 29% more, worseFs71 Hz −16%, better
Qts0.33 –
Vas7 L −15%, better
BL11 T·m +13%, better
Xmax4.5 mm −17%, worse
Sensitivity90.7 dB −2.6, worse
B&C6PS38
£89.63 · 33% more, worseFs75 Hz −12%, better
Qts0.30 −12%, better
Vas8 L –
BL10.8 T·m +11%, better
Xmax6 mm +11%, better
Sensitivity92.4 dB −0.9
CIARENDI6
£89.68 · 33% more, worseFs71 Hz −16%, better
Qts0.29 −15%, better
Vas8.5 L +3%
BL10.8 T·m +11%, better
Xmax5.3 mm –
Sensitivity91.8 dB −1.5
B&C6FHX51
£129.07 · 92% more, worseFs85 Hz –
Qts0.37 +9%
Vas5 L −39%, better
BL11.3 T·m +16%, better
Xmax5.7 mm +6%
Sensitivity90.9 dB −2.4, worse
Eighteen Sound6NTLW2000
£157.41 · 134% more, worseFs86 Hz –
Qts0.35 –
Vas4.6 L −44%, better
BL11.6 T·m +19%, better
Xmax4.9 mm −9%
Sensitivity90.9 dB −2.4, worse
B&C6HCX51
£175.82 · 161% more, worseFs89 Hz +5%
Qts0.38 +12%, worse
Vas5 L −39%, better
BL10.9 T·m +12%, better
Xmax5.5 mm –
Sensitivity91.5 dB −1.8
BMS5CN160
£179.77 · 167% more, worseFs100 Hz +18%, worse
Qts0.36 +6%
Vas2.1 L −74%, better
BL10 T·m –
Xmax5 mm −7%
Sensitivity89.1 dB −4.2, worse
AccutonC173-6-191
£325.80 · 384% more, worseFs39 Hz −55%, better
Qts0.34 –
Vas21.6 L +162%, worse
BL8.8 T·m −10%
Xmax5 mm −7%
Sensitivity87.3 dB −6, worse
BMS6CN160
No current priceFs79 Hz −7%
Qts0.34 –
Vas8.9 L +8%
BL10 T·m –
Xmax5 mm −7%
Sensitivity92.7 dB −0.6
PRV Audio6MB550FT-4
No current priceFs86 Hz –
Qts0.34 –
Vas6.6 L −20%, better
BL8.6 T·m −12%, worse
Xmax5.4 mm –
Sensitivity92.9 dB –
Oberton6NCX
No current priceFs89 Hz +5%
Qts0.36 +7%
Vas7.0 L −15%, better
BL9 T·m −8%
Xmax4.8 mm −12%, worse
Sensitivity93.1 dB –
Beyma6CX200FE
No current priceFs65 Hz −23%, better
Qts0.32 −6%
Vas10.5 L +28%, worse
BL9.2 T·m −6%
Xmax5 mm −7%
Sensitivity91.3 dB −2, worse
Sica6 N 2 PL
No current priceFs68 Hz −20%, better
Qts0.33 –
Vas8.7 L +6%
BL9.5 T·m –
Xmax3.5 mm −35%, worse
Sensitivity90.8 dB −2.5, worse
REDCATT61NPM
No current priceFs92 Hz +8%
Qts0.36 +6%
Vas7 L −15%, better
BL9.8 T·m –
Xmax2.3 mm −57%, worse
Sensitivity93.6 dB –
Sica6 NR 2 PL
No current priceFs61 Hz −29%, better
Qts0.33 –
Vas9.4 L +14%, worse
BL9.9 T·m –
Xmax4 mm −26%, worse
Sensitivity89.9 dB −3.4, worse
PurifiPTT6.5W08-NAA-08
No current priceFs35 Hz −59%, better
Qts0.35 –
Vas23.8 L +189%, worse
BL9.4 T·m −4%
Xmax5.9 mm +9%
Sensitivity86.4 dB −6.9, worse
No photo
PHL Audio900ND
No current priceFs65 Hz −23%, better
Qts0.36 +6%
Vas7.8 L −5%
BL8.1 T·m −17%, worse
Xmax6.5 mm +20%, better
Sensitivity89.3 dB −4, worse
WavecorWF182BD07
No current priceFs40 Hz −53%, better
Qts0.34 –
Vas24.4 L +196%, worse
BL8.5 T·m −13%, worse
Xmax5.5 mm –
Sensitivity88.5 dB −4.8, worse
PurifiPTT6.5W08-NFA-06
No current priceFs38 Hz −55%, better
Qts0.33 –
Vas22.5 L +173%, worse
BL9.5 T·m –
Xmax5.9 mm +9%
Sensitivity87.4 dB −5.9, worse
VoltCX160.1
No current priceFs40 Hz −53%, better
Qts0.35 –
Vas22.6 L +175%, worse
BL9.5 T·m –
Xmax6 mm +11%, better
Sensitivity88.1 dB −5.2, worse
HiViD5.8B
No current priceFs52 Hz −39%, better
Qts0.37 +9%
Vas5.6 L −32%, better
BL9 T·m −8%
Xmax4.8 mm −11%, worse
Sensitivity84.8 dB −8.5, worse
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express5.0 out of 514 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 |
|---|---|---|---|---|
Parts Express Import VAT and duty may apply | £67.26, the lowest price | 8 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 22 Jul