FaitalPRO6FE400
£37.20 · 79% less, betterFs100 Hz +12%, worse
Qts0.36 −5%
Vas5 L –
BL10.5 T·m −4%
Xmax4.8 mm −13%, worse
Sensitivity93 dB +1.5
6.5-inch LF driver · 6HCX series · 51 mm voice coil · 150 W
B&C 6HCX51 8Ω
8 Ω
£175.82
SteadyJP Leisure · In stock · All 3 offers
- Fs
- 89Hz
- Xmax
- 5.5mm
- SPL
- 92dB
- Pe
- 150W
- BL
- 10.9T·m
- Vd
- 73cm³
- Qts
- 0.38
- Vas
- 5L
Published graphs
B&C 6HCX51 is a 6.5-inch 8 ohm LF driver rated at 150 W RMS. The validated T/S data includes Fs 89 Hz, Qts 0.38, Vas 5 L, Xmax 5.5 mm, sensitivity 91.5 dB, plus 73 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 £175.82.
The published T/S values agree with each other
Thiele/Small
- Fs
- 89Hz
- Qts
- 0.38
- Qes
- 0.40
- Qms
- 7.5
- Vas
- 5L
- Re
- 5.2Ω
- Le
- 0.80mH
Motor and cone
- BL
- 10.9T·m
- Sd
- 132cm²
- Mms
- 16g
- Xmax
- 5.5mm
- Vd †
- 73cm³
- Voice coil
- 51mm
- Flux density
- 1.10T
Power and response
- Sensitivity †
- 91.5dB
- Manufacturer sensitivity
- 92dB
- Power
- 150W
- Nominal power
- 150W
- Impedance
- 8Ω
- Min. impedance
- 6Ω
- EBP †
- 223 · Leans vented
Excursion and motor values come from the LF section; the frequency range spans every section.
† Calculated by bits from the published values
What this validation status means
Components and manufacturer details
LF · Specifications LF unit
- BL
- 10.9T·m
- Fs
- 89Hz
- Le
- 0.80mH
- Re
- 5.2Ω
- Sd
- 132cm²
- Mms
- 16g
- Qes
- 0.40
- Qms
- 7.5
- Qts
- 0.38
- SPL
- 91.5dB
- Vas
- 5L
- Xmax
- 5.5mm
- Power
- 150W
- Impedance
- 8Ω
- Flux density
- 1.10T
- Sensitivity
- 92dB
- Nominal power
- 150W
- Calculated sensitivity †
- 91.5dB
- Manufacturer sensitivity
- 92dB
- Min. impedance
- 6Ω
- Voice coil
- 51mm
- Bl
- 10.9 Tm
- Fs
- 89 Hz
- Le
- 0.8 mH
- Re
- 5.2 Ω
- Sd
- 132 cm² (20.5 in²)
- Ebp
- 223 Hz
- Mms
- 16 g
- Qes
- 0.4
- Qms
- 7.5
- Qts
- 0.38
- Vas
- 5 dm³ (0.18 ft³)
- Η0
- 0.8 %
- Xvar
- 5.5 mm
- Sensitivity
- 92 dB
- Flux density
- 1.1 T
- Winding depth
- 13 mm (0.51 in)
- Former material
- Kapton
- Nominal diameter
- 170 mm (6.5 in)
- Winding material
- Copper
- Minimum impedance
- 6 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 6 mm (0.24 in)
- Voice coil diameter
- 51 mm (2 in)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Nominal power handling
- 150 W
- Continuous power handling
- 300 W
HF · Specifications HF unit
- Le
- 0.06mH
- SPL
- 105dB
- Power
- 25W
- Impedance
- 8Ω
- Flux density
- 1.80T
- Sensitivity
- 105dB
- Nominal power
- 25W
- Manufacturer sensitivity
- 105dB
- Min. impedance
- 7.5Ω
- Voice coil
- 36mm
- Crossover
- 2200Hz
- Inductance
- 0.06 mH
- Sensitivity
- 105 dB
- Flux density
- 1.8 T
- Nominal diameter
- 170 mm (6.5 in)
- Winding material
- Aluminium
- Minimum impedance
- 7.5 Ω
- Nominal impedance
- 8 Ω
- Diaphragm material
- Polyester
- Voice coil diameter
- 36 mm (1.4 in)
- Recommended crossover
- 2.2 kHz
- Nominal power handling
- 25 W
- Continuous power handling
- 50 W
02
Compare
Same-size drivers, compared with the 6HCX51. Clear differences are green when better and red when worse.
This driver6HCX51
Best price
£175.82
Fs
89 Hz
Qts
0.38
Vas
5 L
BL
10.9 T·m
Xmax
5.5 mm
Sensitivity
91.5 dB
Power
150 W
Beyma6CMV2
£40.92 · 77% less, betterFs90 Hz –
Qts0.34 −11%, better
Vas6.5 L +30%, worse
BL9.4 T·m −14%, worse
Xmax5.7 mm +4%
Sensitivity92.3 dB +0.8
MonacorSPH-176
£58.80 · 67% less, betterFs39 Hz −56%, better
Qts0.37 –
Vas27 L +440%, worse
BL7.7 T·m −29%, worse
Xmax5.5 mm –
Sensitivity87.6 dB −3.9, worse
CelestionTFX0615
£59.20 · 66% less, betterFs97 Hz +9%
Qts0.38 –
Vas7.2 L +44%, worse
BL9.8 T·m −10%
Xmax5.3 mm −5%
Sensitivity93.8 dB +2.3, better
CIAREFXI6
£63.52 · 64% less, betterFs70 Hz −21%, better
Qts0.33 −13%, better
Vas8 L +60%, worse
BL10.6 T·m –
Xmax5.3 mm −4%
Sensitivity90.7 dB −0.8
LavoceWAF061.80
£64.36 · 63% less, betterFs65 Hz −27%, better
Qts0.42 +11%, worse
Vas7.3 L +45%, worse
BL9.5 T·m −13%, worse
Xmax4.9 mm −11%, worse
Sensitivity88.6 dB −2.9, worse
PRV Audio6MB550FT
£68.08 · 61% less, betterFs85 Hz −5%
Qts0.34 −11%, better
Vas8.2 L +65%, worse
BL9.8 T·m −10%, worse
Xmax5.4 mm –
Sensitivity93.3 dB +1.8
FaitalPRO6PR160
£83.85 · 52% less, betterFs90 Hz –
Qts0.33 −13%, better
Vas5.9 L +18%, worse
BL11 T·m –
Xmax5 mm −9%
Sensitivity92.9 dB +1.4
FaitalPRO6PR122
£84.13 · 52% less, betterFs110 Hz +24%, worse
Qts0.39 –
Vas4.7 L −6%
BL10.5 T·m −4%
Xmax2.8 mm −50%, worse
Sensitivity93.6 dB +2.1, better
FaitalPRO6PR150
£85.46 · 51% less, betterFs100 Hz +12%, worse
Qts0.34 −11%, better
Vas4.9 L –
BL11.6 T·m +6%
Xmax2.6 mm −52%, worse
Sensitivity93.5 dB +2, better
Beyma6G40ND
£97.36 · 45% less, betterFs100 Hz +12%, worse
Qts0.38 –
Vas3.7 L −26%, better
BL10.6 T·m –
Xmax3 mm −45%, worse
Sensitivity91.2 dB –
B&C6NDL38
£98.16 · 44% less, betterFs72 Hz −19%, better
Qts0.42 +11%, worse
Vas7 L +40%, worse
BL9.5 T·m −13%, worse
Xmax6 mm +9%
Sensitivity89.8 dB −1.7
WavecorWF182BD12
£119.63 · 32% less, betterFs30 Hz −67%, better
Qts0.37 –
Vas32.4 L +548%, worse
BL8.2 T·m −25%, worse
Xmax5.5 mm –
Sensitivity85.4 dB −6.1, worse
WavecorSW178WA01
£122.05 · 31% less, betterFs38 Hz −57%, better
Qts0.36 −4%
Vas12.2 L +144%, worse
BL12 T·m +10%, better
Xmax5 mm −9%
Sensitivity84.6 dB −6.9, worse
B&C6FHX51
£129.07 · 27% less, betterFs85 Hz −4%
Qts0.37 –
Vas5 L –
BL11.3 T·m +4%
Xmax5.7 mm +4%
Sensitivity90.9 dB −0.6
FaitalPRO6HX150
£155.14 · 12% less, betterFs88 Hz –
Qts0.34 −11%, better
Vas6.3 L +26%, worse
BL12 T·m +10%, better
Xmax4.3 mm −21%, worse
Sensitivity92.9 dB +1.4
Eighteen Sound6NTLW2000
£159.23 · 9% less, betterFs86 Hz −3%
Qts0.35 −8%
Vas4.6 L −8%
BL11.6 T·m +6%
Xmax4.9 mm −11%, worse
Sensitivity90.9 dB −0.6
WavecorWF182BD20
£190.56 · 8% more, worseFs30 Hz −67%, better
Qts0.37 –
Vas32.4 L +548%, worse
BL8.2 T·m −25%, worse
Xmax5.5 mm –
Sensitivity85.4 dB −6.1, worse
HiViD5.8B
No current priceFs52 Hz −42%, better
Qts0.37 –
Vas5.6 L +12%, worse
BL9 T·m −17%, worse
Xmax4.8 mm −13%, worse
Sensitivity84.8 dB −6.7, worse
MonacorTFX0615/8
No current priceFs97 Hz +9%
Qts0.38 –
Vas7.2 L +44%, worse
BL9.8 T·m −10%
Xmax5.3 mm −5%
Sensitivity93.9 dB +2.4, better
Oberton6NM150
No current priceFs124 Hz +39%, worse
Qts0.38 –
Vas4 L −20%, better
BL11.6 T·m +6%
Xmax2.3 mm −59%, worse
Sensitivity94.8 dB +3.3, better
B&C6CLA51
No current priceFs96 Hz +8%
Qts0.32 −16%, better
Vas4.3 L −14%, better
BL11.4 T·m +5%
Xmax4.8 mm −13%, worse
Sensitivity92.3 dB +0.8
LavoceWSN061.52
No current priceFs90 Hz –
Qts0.39 –
Vas5.9 L +18%, worse
BL9.9 T·m −9%
Xmax3.8 mm −31%, worse
Sensitivity92.1 dB +0.6
Oberton6NCX
No current priceFs89 Hz –
Qts0.36 −4%
Vas7.0 L +40%, worse
BL9 T·m −17%, worse
Xmax4.8 mm −14%, worse
Sensitivity93.1 dB +1.6
PRV Audio6MB550FT-4
No current priceFs86 Hz −3%
Qts0.34 −11%, better
Vas6.6 L +32%, worse
BL8.6 T·m −21%, worse
Xmax5.4 mm –
Sensitivity92.9 dB +1.4
HiViD6G
No current priceFs44 Hz −51%, better
Qts0.38 –
Vas12.1 L +142%, worse
BL9.5 T·m −13%, worse
Xmax4.8 mm −13%, worse
Sensitivity85.8 dB −5.7, worse
CelestionNTR06-1705D
No current priceFs49 Hz −45%, better
Qts0.38 –
Vas21.4 L +328%, worse
BL8.2 T·m −25%, worse
Xmax6 mm +9%
Sensitivity90 dB −1.5
BMS6CN160
No current priceFs79 Hz −11%, better
Qts0.34 −11%, better
Vas8.9 L +78%, worse
BL10 T·m −8%
Xmax5 mm −9%
Sensitivity92.7 dB +1.2
PurifiPTT6.5W08-NAA-08
No current priceFs35 Hz −61%, better
Qts0.35 −8%
Vas23.8 L +376%, worse
BL9.4 T·m −14%, worse
Xmax5.9 mm +7%
Sensitivity86.4 dB −5.1, worse
Oberton6M150
No current priceFs115 Hz +29%, worse
Qts0.42 +11%, worse
Vas5.3 L +7%
BL10.0 T·m −8%
Xmax2.3 mm −59%, worse
Sensitivity94.5 dB +3, 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 |
|---|---|---|---|---|
JP Leisure | £175.82, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £175.82 | In stock | Visit shop at JP Leisure | |
Blue Aran approx 2 months | £189.50 | 7.8% above the lowest price | Ordered on Request (approx 2 months) | Visit shop at Blue Aran |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£167.58 → £175.82Up 4.9% from £167.58
- 23 JunBlue Aran£189.56 → £189.50Down <0.1% from £189.56
- 5 JunBlue Aran£174.05 → £189.56Up 8.9% from £174.05