- Net volume
- 9L
- Tuning
- 62Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
6.5-inch LF driver · 6NDL series · 38 mm voice coil · 150 W
B&C 6NDL38 8Ω
70–6000 Hz
- Fs
- 72Hz
- Xmax
- 6mm
- SPL
- 90dB
- Pe
- 150W
- BL
- 9.5T·m
- Vd
- 79cm³
- Qts
- 0.42
- Vas
- 7L
Published graphs
B&C 6NDL38 is a 6.5-inch 8 ohm LF driver rated at 150 W RMS. The validated T/S data includes Fs 72 Hz, Qts 0.42, Vas 7 L, Xmax 6 mm, sensitivity 89.8 dB, plus 79 cm³ Vd and 164 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 £98.16.
The published T/S values agree with each other
Thiele/Small
- Fs
- 72Hz
- Qts
- 0.42
- Qes
- 0.44
- Qms
- 11.5
- Vas
- 7L
- Re
- 5.2Ω
- Le
- 0.60mH
Motor and cone
- BL
- 9.5T·m
- Sd
- 132cm²
- Mms
- 17g
- Xmax
- 6mm
- Vd †
- 79cm³
- Voice coil
- 38mm
- Flux density
- 1.15T
Power and response
- Sensitivity †
- 89.8dB
- Manufacturer sensitivity
- 92dB
- Power
- 150W
- Nominal power
- 150W
- Impedance
- 8Ω
- Min. impedance
- 6Ω
- Range
- 70–6000Hz
- EBP †
- 164 · Leans vented
Size and mounting
- Diameter
- 187mm
- Cutout
- 145mm
- Bolt circle
- 172mm
- Depth
- 85mm
- Weight
- 1.2kg
Sensitivity shows 89.8 dB, calculated from the T/S values. B&C publishes 92.0 dB, 2.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 9.5T·m
- Fs
- 72Hz
- Le
- 0.60mH
- Re
- 5.2Ω
- Sd
- 132cm²
- Mms
- 17g
- Qes
- 0.44
- Qms
- 11.5
- Qts
- 0.42
- SPL
- 89.8dB
- Vas
- 7L
- Xmax
- 6mm
- Power
- 150W
- Impedance
- 8Ω
- Flux density
- 1.15T
- Sensitivity
- 92dB
- Low limit
- 70Hz
- Nominal power
- 150W
- Calculated sensitivity †
- 89.8dB
- High limit
- 6000Hz
- Manufacturer sensitivity
- 92dB
- Min. impedance
- 6Ω
- Voice coil
- 38mm
- Weight
- 1.2kg
- Diameter
- 187mm
- Depth
- 85mm
- Cutout
- 145mm
- Bolt circle
- 172mm
- Bl
- 9.5 Tm
- Fs
- 72 Hz
- Le
- 0.6 mH
- Re
- 5.2 Ω
- Sd
- 132 cm² (20.5 in²)
- Ebp
- 164 Hz
- Mms
- 17 g
- Qes
- 0.44
- Qms
- 11.5
- Qts
- 0.42
- Vas
- 7 dm³ (0.25 ft³)
- Η0
- 0.6 %
- Cone
- RCK06NDL388
- Xmax
- 6 mm
- Xvar
- 5.5 mm
- Depth
- 85 mm (3.3 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 1.2 kg (2.6 lb)
- Pole design
- T-Pole
- Sensitivity
- 92 dB
- Flux density
- 1.15 T
- Shipping box
- 210x210x125 mm (8.27x8.27x4.92 in)
- Winding depth
- 12 mm (0.5 in)
- Shipping units
- 1 pcs
- Surround shape
- Roll
- Former material
- Kapton
- Frequency range
- 70 Hz - 6000 Hz
- Magnet material
- Neodymium Ring
- Shipping weight
- 1.4 kg (3.09 lb)
- Nominal diameter
- 170 mm (6.5 in)
- Overall diameter
- 187 mm (7.4 in)
- Winding material
- Copper
- Minimum impedance
- 6 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 6 mm (0.25 in)
- Recommended tuning
- 62 Hz
- Voice coil diameter
- 38 mm (1.5 in)
- Bolt circle diameter
- 172 mm (6.7 in)
- Recommended enclosure
- 9 dm³ (0.32 ft³)
- Woofer cone treatment
- WP Waterproof Front Side
- Baffle cutout diameter
- 145 mm (5.7 in)
- Nominal power handling
- 150 W
- Continuous power handling
- 300 W
- Flange and gasket thickness
- 11 mm (0.4 in)
- Air volume occupied by driver
- 0.63 dm³ (0.02 ft³)
B&C’s suggested box
From B&C’s 6NDL38 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 6NDL38. Clear differences are green when better and red when worse.
This driver6NDL38
Best price
£98.16
Fs
72 Hz
Qts
0.42
Vas
7 L
BL
9.5 T·m
Xmax
6 mm
Sensitivity
89.8 dB
Power
150 W
PeerlessSLS-P830946
£37.48 · 62% less, betterFs47 Hz −35%, better
Qts0.43 –
Vas6.0 L −14%, better
BL8.5 T·m −10%, worse
Xmax10.9 mm +82%, better
Sensitivity83.4 dB −6.4, worse
Beyma6CMV2
£40.92 · 58% less, betterFs90 Hz +25%, worse
Qts0.34 −19%, better
Vas6.5 L −7%
BL9.4 T·m –
Xmax5.7 mm −5%
Sensitivity92.3 dB +2.5, better
Sica6.5 H 1.5 CP
£56.66 · 42% less, betterFs45 Hz −37%, better
Qts0.42 –
Vas20.2 L +189%, worse
BL7.0 T·m −26%, worse
Xmax6 mm –
Sensitivity88.2 dB −1.6
CelestionTFX0615
£59.20 · 40% less, betterFs97 Hz +34%, worse
Qts0.38 −10%, better
Vas7.2 L –
BL9.8 T·m +3%
Xmax5.3 mm −13%, worse
Sensitivity93.8 dB +4, better
LavoceWAF061.80
£64.36 · 34% less, betterFs65 Hz −10%
Qts0.42 –
Vas7.3 L +4%
BL9.5 T·m –
Xmax4.9 mm −18%, worse
Sensitivity88.6 dB −1.2
PRV Audio6MB550FT
£68.08 · 31% less, betterFs85 Hz +18%, worse
Qts0.34 −19%, better
Vas8.2 L +18%, worse
BL9.8 T·m –
Xmax5.4 mm −10%
Sensitivity93.3 dB +3.5, better
CelestionCF0617M
£74.00 · 25% less, betterFs117 Hz +62%, worse
Qts0.45 +7%
Vas5.4 L −23%, better
BL9.7 T·m –
Xmax2.7 mm −55%, worse
Sensitivity94.5 dB +4.7, better
B&C6FHX51
£129.07 · 31% more, worseFs85 Hz +18%, worse
Qts0.37 −12%, better
Vas5 L −29%, better
BL11.3 T·m +19%, better
Xmax5.7 mm −5%
Sensitivity90.9 dB +1.1
CIARECMI160ND
£130.61 · 33% more, worseFs73 Hz –
Qts0.41 –
Vas6 L −14%, better
BL7.8 T·m −18%, worse
Xmax4.5 mm −25%, worse
Sensitivity89.2 dB −0.6
PRV Audio6MR500-NDY-4
£138.01 · 41% more, worseFs100 Hz +39%, worse
Qts0.43 –
Vas5.1 L −27%, better
BL8.8 T·m −8%
Xmax4.4 mm −26%, worse
Sensitivity92.4 dB +2.6, better
B&C6HCX51
£175.82 · 79% more, worseFs89 Hz +24%, worse
Qts0.38 −10%
Vas5 L −29%, better
BL10.9 T·m +15%, better
Xmax5.5 mm −8%
Sensitivity91.5 dB +1.7
£592.83 · 504% more, worse
Fs34 Hz −53%, better
Qts0.41 –
Vas24 L +243%, worse
BL8.3 T·m −13%, worse
Xmax7 mm +17%, better
Sensitivity85.2 dB −4.6, worse
PeerlessFSL-0615R01-08
No current priceFs84 Hz +17%, worse
Qts0.45 +7%
Vas6.7 L −4%
BL8.5 T·m −11%, worse
Xmax6 mm –
Sensitivity91 dB +1.2
MonacorTFX0615/8
No current priceFs97 Hz +35%, worse
Qts0.38 −10%, better
Vas7.2 L –
BL9.8 T·m +3%
Xmax5.3 mm −13%, worse
Sensitivity93.9 dB +4.1, better
MonacorSP-6/150PA
No current priceFs73 Hz –
Qts0.42 –
Vas8.5 L +21%, worse
BL9.9 T·m +4%
Xmax1 mm −83%, worse
Sensitivity90.6 dB +0.8
Oberton6M150
No current priceFs115 Hz +60%, worse
Qts0.42 –
Vas5.3 L −24%, better
BL10.0 T·m +5%
Xmax2.3 mm −63%, worse
Sensitivity94.5 dB +4.7, better
WavecorWF182BD11
No current priceFs34 Hz −53%, better
Qts0.42 –
Vas24.3 L +247%, worse
BL8.2 T·m −14%, worse
Xmax5.5 mm −8%
Sensitivity85.4 dB −4.4, worse
WavecorWF182BD19
No current priceFs34 Hz −53%, better
Qts0.42 –
Vas24.3 L +247%, worse
BL8.2 T·m −14%, worse
Xmax5.5 mm −8%
Sensitivity85.4 dB −4.4, worse
Oberton6NCX
No current priceFs89 Hz +24%, worse
Qts0.36 −13%, better
Vas7.0 L –
BL9 T·m −5%
Xmax4.8 mm −21%, worse
Sensitivity93.1 dB +3.3, better
HiViD5.8B
No current priceFs52 Hz −28%, better
Qts0.37 −12%, better
Vas5.6 L −20%, better
BL9 T·m −5%
Xmax4.8 mm −20%, worse
Sensitivity84.8 dB −5, worse
LavoceWSN061.52
No current priceFs90 Hz +25%, worse
Qts0.39 −7%
Vas5.9 L −15%, better
BL9.9 T·m +4%
Xmax3.8 mm −37%, worse
Sensitivity92.1 dB +2.3, better
MonacorSP-6/100PA
No current priceFs90 Hz +25%, worse
Qts0.44 +5%
Vas8 L +14%, worse
BL9.3 T·m –
Xmax0.75 mm −88%, worse
Sensitivity92.8 dB +3, better
CIARECMI160
No current priceFs70 Hz –
Qts0.41 –
Vas7.8 L +11%, worse
BL7.2 T·m −24%, worse
Xmax4.5 mm −25%, worse
Sensitivity89.8 dB –
PRV Audio6MB550FT-4
No current priceFs86 Hz +20%, worse
Qts0.34 −19%, better
Vas6.6 L −6%
BL8.6 T·m −9%
Xmax5.4 mm −10%
Sensitivity92.9 dB +3.1, better
REDCATT61NPM
No current priceFs92 Hz +28%, worse
Qts0.36 −14%, better
Vas7 L –
BL9.8 T·m +3%
Xmax2.3 mm −62%, worse
Sensitivity93.6 dB +3.8, better
CelestionNTR06-1705D
No current priceFs49 Hz −32%, better
Qts0.38 −10%
Vas21.4 L +206%, worse
BL8.2 T·m −14%, worse
Xmax6 mm –
Sensitivity90 dB –
HiViD6.8MKII
No current priceFs54 Hz −25%, better
Qts0.40 −5%
Vas8.9 L +27%, worse
BL9.8 T·m +3%
Xmax3.5 mm −42%, worse
Sensitivity86.6 dB −3.2, worse
Tang BandW6-1914S
No current priceFs65 Hz −10%
Qts0.44 +5%
Vas6.8 L −3%
BL11.6 T·m +22%, better
Xmax0.5 mm −92%, worse
Sensitivity88 dB −1.8
MonacorCF0617M/8
No current priceFs117 Hz +62%, worse
Qts0.45 +7%
Vas5.4 L −23%, better
BL9 T·m −5%
Xmax2.7 mm −55%, worse
Sensitivity94.5 dB +4.7, better
HiViD6G
No current priceFs44 Hz −39%, better
Qts0.38 −10%
Vas12.1 L +73%, worse
BL9.5 T·m –
Xmax4.8 mm −20%, worse
Sensitivity85.8 dB −4, worse
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 | £98.16, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £98.16 | In stock | Visit shop at JP Leisure | |
Blue Aran | £99.00 | 0.9% above the lowest price | 4 in stock | Visit shop at Blue Aran |
Thomann | £99.00 | 0.9% above the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 1 Apr
Recent changes
- 17 JulBlue Aran£99.41 → £99.00Down 0.4% from £99.41
- 23 JunJP Leisure£99.78 → £98.16Down 1.6% from £99.78
- 23 JunBlue Aran£99.44 → £99.41Down <0.1% from £99.44