B&C design
CX3.4
Multi-purpose – three way column Speaker (active or passive)
- Drivers
- 2 × 4NDS34, 8 Ω1 × 4CXN36, 8 Ω
4-inch LF driver · 4NDS series · 34 mm voice coil · 100 W
B&C 4NDS34 8Ω
8 Ω · 80–2000 Hz
£56.60
11%JP Leisure · In stock · All 4 offers
- Fs
- 79Hz
- Xmax
- 3.8mm
- SPL
- 89dB
- Pe
- 100W
- BL
- 8.8T·m
- Vd
- 22cm³
- Qts
- 0.24
- Vas
- 3L
Published graphs
B&C 4NDS34 is a 4-inch 8 ohm LF driver rated at 100 W RMS. The validated T/S data includes Fs 79 Hz, Qts 0.24, Vas 2.6 L, Xmax 3.8 mm, sensitivity 89.1 dB, plus 22 cm³ Vd and 316 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 £43.54.
The published T/S values agree with each other
Thiele/Small
- Fs
- 79Hz
- Qts
- 0.24
- Qes
- 0.25
- Qms
- 8.5
- Vas
- 2.6L
- Re
- 5.5Ω
- Le
- 0.21mH
Motor and cone
- BL
- 8.8T·m
- Sd
- 57cm²
- Mms
- 7g
- Xmax
- 3.8mm
- Vd †
- 22cm³
- Voice coil
- 34mm
- Flux density
- 1.25T
Power and response
- Sensitivity †
- 89.1dB
- Manufacturer sensitivity
- 89dB
- Power
- 100W
- Nominal power
- 100W
- Impedance
- 8Ω
- Min. impedance
- 6.2Ω
- Range
- 80–2000Hz
- EBP †
- 316 · Leans vented
Size and mounting
- Diameter
- 127mm
- Cutout
- 103mm
- Bolt circle
- 114mm
- Depth
- 67mm
- Weight
- 0.55kg
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 8.8T·m
- Fs
- 79Hz
- Le
- 0.21mH
- Re
- 5.5Ω
- Sd
- 57cm²
- Mms
- 7g
- Qes
- 0.25
- Qms
- 8.5
- Qts
- 0.24
- SPL
- 89.1dB
- Vas
- 2.6L
- Xmax
- 3.8mm
- Power
- 100W
- Impedance
- 8Ω
- Flux density
- 1.25T
- Sensitivity
- 89dB
- Low limit
- 80Hz
- Nominal power
- 100W
- Calculated sensitivity †
- 89.1dB
- High limit
- 2000Hz
- Manufacturer sensitivity
- 89dB
- Min. impedance
- 6.2Ω
- Voice coil
- 34mm
- Weight
- 0.55kg
- Diameter
- 127mm
- Depth
- 67mm
- Cutout
- 103mm
- Bolt circle
- 114mm
- Bl
- 8.8 Tm
- Fs
- 79 Hz
- Le
- 0.21 mH
- Re
- 5.5 Ω
- Sd
- 57 cm² (8.84 in²)
- Ebp
- 316 Hz
- Mms
- 7.2 g
- Qes
- 0.25
- Qms
- 8.5
- Qts
- 0.24
- Vas
- 2.6 dm³ (0.09 ft³)
- Η0
- 0.5 %
- Cone
- RCK04NDS348
- Xmax
- 3.8 mm
- Xvar
- 5 mm
- Depth
- 67 mm (2.64 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 0.55 kg (1.21 lb)
- Pole design
- T-Pole
- Sensitivity
- 89 dB
- Flux density
- 1.25 T
- Shipping box
- 117x120x110 mm (4.61x4.72x4.33 in)
- Winding depth
- 11 mm (0.43 in)
- Shipping units
- 1 pcs
- Surround shape
- Roll
- Former material
- Glass Fibre
- Frequency range
- 80 Hz - 2000 Hz
- Magnet material
- Neodymium Inside Slug
- Shipping weight
- 0.67 kg (1.48 lb)
- Nominal diameter
- 100 mm (4 in)
- Overall diameter
- 127 mm (5 in)
- Winding material
- Copper
- Minimum impedance
- 6.2 Ω
- Nominal impedance
- 8 Ω
- Magnetic gap depth
- 7 mm (0.28 in)
- Recommended tuning
- 90 Hz
- Voice coil diameter
- 34 mm (1.3 in)
- Bolt circle diameter
- 114 mm (4.51 in)
- Recommended enclosure
- 3 dm³ (0.11 ft³)
- Woofer cone treatment
- TWP Waterproof Both Sides
- Baffle cutout diameter
- 103 mm (4.06 in)
- Nominal power handling
- 100 W
- Continuous power handling
- 200 W
- Flange and gasket thickness
- 3 mm (0.12 in)
- Air volume occupied by driver
- 0.25 dm³ (0.01 ft³)
02
Designs
Cabinets for the 4NDS34: a design and a suggested box from B&C.
All 4NDS34 designsHow we find designsB&C’s design
From the maker, with plans to download
B&C’s suggested box
From B&C’s 4NDS34 page
- Net volume
- 3L
- Tuning
- 90Hz
B&C gives the volume and tuning; the port is sized for the driver when you open it.
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 4NDS34. Clear differences are green when better and red when worse.
This driver4NDS34
Best price
£43.54
Fs
79 Hz
Qts
0.24
Vas
2.6 L
BL
8.8 T·m
Xmax
3.8 mm
Sensitivity
89.1 dB
Power
100 W
Dayton AudioTCP115-8
£11.95 · 73% less, betterFs59 Hz −25%, better
Qts0.43 +79%, worse
Vas2.5 L −3%
BL7.4 T·m −16%, worse
Xmax4 mm +5%
Sensitivity81.9 dB −7.2, worse
REDCATT41NFR
£29.89 · 31% less, betterFs98 Hz +24%, worse
Qts0.37 +54%, worse
Vas2.1 L −19%, better
BL10 T·m +14%, better
Xmax3.1 mm −17%, worse
Sensitivity89 dB –
Dayton AudioND105-8
£30.48 · 30% less, betterFs67 Hz −16%, better
Qts0.66 +175%, worse
Vas3.0 L +14%, worse
BL5.4 T·m −38%, worse
Xmax4 mm +5%
Sensitivity82.8 dB −6.3, worse
CIAREPWA5.38
£37.58 · 14% less, betterFs78 Hz –
Qts0.37 +54%, worse
Vas4.5 L +73%, worse
BL8.9 T·m –
Xmax3.9 mm –
Sensitivity89.2 dB –
B&C4NDF34
£42.70 · 2% lessFs110 Hz +39%, worse
Qts0.27 +13%, worse
Vas1.6 L −38%, better
BL9 T·m –
Xmax3.8 mm –
Sensitivity90.8 dB +1.7
LavoceWSN041.00
£46.38 · 7% more, worseFs104 Hz +32%, worse
Qts0.30 +25%, worse
Vas1.8 L −31%, better
BL8.3 T·m −6%
Xmax4 mm +5%
Sensitivity90 dB +0.9
FaitalPRO5PR120
£70.33 · 62% more, worseFs100 Hz +27%, worse
Qts0.27 +13%, worse
Vas4.2 L +62%, worse
BL10 T·m +14%, better
Xmax3.1 mm −18%, worse
Sensitivity93.8 dB +4.7, better
B&C5FG44
£74.52 · 71% more, worseFs63 Hz −20%, better
Qts0.27 +13%, worse
Vas6.3 L +142%, worse
BL10 T·m +14%, better
Xmax3 mm −21%, worse
Sensitivity89.2 dB –
B&C5NDL38
£81.22 · 87% more, worseFs80 Hz –
Qts0.36 +50%, worse
Vas4.3 L +65%, worse
BL9.2 T·m +5%
Xmax3.5 mm −8%
Sensitivity89.8 dB +0.7
£89.46 · 105% more, worse
Fs51 Hz −35%, better
Qts0.25 +4%
Vas12 L +362%, worse
BL6.8 T·m −23%, worse
Xmax1.7 mm −55%, worse
Sensitivity89.3 dB –
Beyma5P200ND
£90.20 · 107% more, worseFs77 Hz –
Qts0.23 −4%
Vas4.8 L +85%, worse
BL10.5 T·m +19%, better
Xmax5.7 mm +50%, better
Sensitivity91.6 dB +2.5, better
Sica4 C 1.5 CP
£104.62 · 140% more, worseFs102 Hz +29%, worse
Qts0.32 +33%, worse
Vas1.5 L −42%, better
BL7.3 T·m −17%, worse
Xmax2 mm −47%, worse
Sensitivity89.7 dB +0.6
SB AcousticsMR13P-4
£115.00 · 164% more, worseFs41 Hz −48%, better
Qts0.23 −4%
Vas19.4 L +646%, worse
BL4.3 T·m −51%, worse
Xmax3 mm −21%, worse
Sensitivity89.3 dB –
SB AcousticsMR13PNW-4
£115.00 · 164% more, worseFs41 Hz −48%, better
Qts0.23 −4%
Vas19.4 L +646%, worse
BL4.3 T·m −51%, worse
Xmax3 mm −21%, worse
Sensitivity89.3 dB –
PRV Audio5MR450-NDY
£115.51 · 165% more, worseFs159 Hz +101%, worse
Qts0.64 +167%, worse
Vas1.5 L −43%, better
BL9.4 T·m +7%
Xmax3.5 mm −9%
Sensitivity91.5 dB +2.4, better
PRV Audio5MR450-NDY-4
£115.51 · 165% more, worseFs150 Hz +89%, worse
Qts0.49 +104%, worse
Vas1.6 L −40%, better
BL7.9 T·m −10%
Xmax3.3 mm −13%, worse
Sensitivity92.2 dB +3.1, better
Tang BandW3-1878
£125.60 · 188% more, worseFs75 Hz −5%
Qts0.28 +17%, worse
Vas3.1 L +18%, worse
BL4.3 T·m −51%, worse
Xmax4 mm +5%
Sensitivity87.9 dB −1.2
B&C5FCX44
£129.00 · 196% more, worseFs61 Hz −23%, better
Qts0.25 +4%
Vas7 L +169%, worse
BL10.5 T·m +19%, better
Xmax5 mm +32%, better
Sensitivity90.1 dB +1
FaitalPRO5HX220
£184.17 · 323% more, worseFs135 Hz +71%, worse
Qts0.59 +146%, worse
Vas2.2 L −15%, better
BL7.7 T·m −13%, worse
Xmax4.6 mm +20%, better
Sensitivity91.4 dB +2.3, better
MorelEW 536
£209.29 · 381% more, worseFs45 Hz −43%, better
Qts0.22 −8%
Vas10.3 L +296%, worse
BL7.7 T·m −13%, worse
Xmax5.5 mm +45%, better
Sensitivity87.3 dB −1.8
Scanspeak12MU/4731T00
£267.60 · 515% more, worseFs64 Hz −19%, better
Qts0.24 –
Vas5.4 L +108%, worse
BL5.1 T·m −42%, worse
Xmax3.5 mm −8%
Sensitivity89.4 dB –
CelestionTFX0515-16
No current priceFs110 Hz +39%, worse
Qts0.80 +233%, worse
Vas2.0 L −21%, better
BL8.6 T·m –
Xmax3.8 mm –
Sensitivity87.1 dB −2, worse
No photo
PHL Audio930ND
No current priceFs129 Hz +63%, worse
Qts0.48 +100%, worse
Vas2.6 L –
BL8.8 T·m –
Xmax4.5 mm +18%, better
Sensitivity92.1 dB +3, better
No photo
PHL Audio930
No current priceFs130 Hz +65%, worse
Qts0.50 +108%, worse
Vas2.5 L −4%
BL8.7 T·m –
Xmax4.5 mm +18%, better
Sensitivity91.9 dB +2.8, better
AccutonC90-6-726
No current priceFs110 Hz +39%, worse
Qts0.19 −21%, better
Vas2.4 L −8%
BL11.1 T·m +26%, better
Xmax3 mm −21%, worse
Sensitivity94.1 dB +5, better
PurifiPTT4.0M04-NFC-01
No current priceFs46 Hz −42%, better
Qts0.25 +4%
Vas5.4 L +108%, worse
BL6 T·m −32%, worse
Xmax2.9 mm −24%, worse
Sensitivity84.9 dB −4.2, worse
KartesianWIB100_VPA-S
No current priceFs94 Hz +19%, worse
Qts0.27 +14%, worse
Vas1.4 L −46%, better
BL9 T·m –
Xmax3 mm −21%, worse
Sensitivity89.5 dB –
AccutonBD90-6-727
No current priceFs123 Hz +56%, worse
Qts0.28 +17%, worse
Vas1.6 L −38%, better
BL10.7 T·m +22%, better
Xmax3 mm −21%, worse
Sensitivity92 dB +2.9, better
EminenceFS5.15A8
No current priceFs74 Hz −6%
Qts0.38 +58%, worse
Vas5 L +92%, worse
BL8.6 T·m –
Xmax3.5 mm −8%
Sensitivity89 dB –
Tang BandW4-937SF
No current priceFs65 Hz −18%, better
Qts0.26 +8%
Vas4.9 L +87%, worse
BL6.7 T·m −24%, worse
Xmax4.5 mm +18%, better
Sensitivity88.1 dB −1
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 | £56.60, the lowest price | In stock | Visit shop at JP Leisure | |
Blue Aran 4-6 weeks | £51.19 | Usually available in 4-6 weeks | Visit shop at Blue Aran | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £56.60 | In stock | Visit shop at JP Leisure |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunBlue Aran£51.22 → £51.19Down 0.1% from £51.22
- 23 JunJP Leisure£53.50 → £56.60Up 5.8% from £53.50
- 5 JunBlue Aran£46.02 → £51.22Up 11% from £46.02