- Net volume
- 25L
- Tuning
- 70Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
10-inch LF driver · 350 W
Eighteen Sound 10NMB420 8Ω
65–5000 Hz
- Fs
- 56Hz
- Xmax
- 4mm
- SPL
- 96dB
- Pe
- 350W
- BL
- 14.5T·m
- Vd
- 138cm³
- Qts
- 0.25
- Vas
- 40L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 1 trace
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
frequency response
Frequency response
240 plotted pointsMedium confidence1,481 selected pixels of 1,731
Published graphs
Eighteen Sound 10NMB420 is a 10-inch 8 ohm LF driver rated at 350 W RMS. The validated T/S data includes Fs 56 Hz, Qts 0.25, Vas 40 L, Xmax 4 mm, sensitivity 96.3 dB, plus 138 cm³ Vd and 215 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 £182.53.
The published T/S values agree with each other
Thiele/Small
- Fs
- 56Hz
- Qts
- 0.25
- Qes
- 0.26
- Qms
- 5
- Vas
- 40L
- Re
- 5Ω
- Le
- 0.37mH
Motor and cone
- BL
- 14.5T·m
- Sd
- 346cm²
- Mms
- 30g
- Xmax
- 4mm
- Vd †
- 138cm³
Power and response
- Sensitivity †
- 96.3dB
- Manufacturer sensitivity
- 99dB
- Power
- 350W
- Nominal power
- 350W
- Impedance
- 8Ω
- Range
- 65–5000Hz
- EBP †
- 215 · Leans vented
Size and mounting
- Diameter
- 260mm
- Cutout
- 232mm
- Bolt circle
- 244mm
- Depth
- 122mm
- Weight
- 3kg
Other published values
- Power Program
- 500
Sensitivity shows 96.3 dB, calculated from the T/S values. Eighteen Sound publishes 99.0 dB, 2.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 10″
- BL
- 14.5T·m
- Fs
- 56Hz
- Le
- 0.37mH
- Re
- 5Ω
- Sd
- 346cm²
- Mms
- 30g
- Qes
- 0.26
- Qms
- 5
- Qts
- 0.25
- SPL
- 96.3dB
- Vas
- 40L
- Xmax
- 4mm
- Power
- 350W
- Impedance
- 8Ω
- Sensitivity
- 99dB
- Low limit
- 65Hz
- Nominal power
- 350W
- Power Program
- 500
- Calculated sensitivity †
- 96.3dB
- High limit
- 5000Hz
- Manufacturer sensitivity
- 99dB
- Weight
- 3kg
- Diameter
- 260mm
- Depth
- 122mm
- Cutout
- 232mm
- Bolt circle
- 244mm
02
Designs
What Eighteen Sound suggests for the 10NMB420. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 10NMB420 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 10NMB420. Clear differences are green when better and red when worse.
This driver10NMB420
Best price
£182.53
Fs
56 Hz
Qts
0.25
Vas
40 L
BL
14.5 T·m
Xmax
4 mm
Sensitivity
96.3 dB
Power
350 W
CIAREPW252
£96.29 · 47% less, betterFs55 Hz –
Qts0.26 +4%
Vas43.4 L +8%
BL15.2 T·m +5%
Xmax7 mm +75%, better
Sensitivity95.8 dB −0.5
PRV Audio10MB800FT
£97.18 · 47% less, betterFs65 Hz +16%, worse
Qts0.32 +28%, worse
Vas36.7 L −8%
BL14.4 T·m –
Xmax3.5 mm −13%, worse
Sensitivity96.8 dB +0.5
B&C10HPL64
£115.00 · 37% less, betterFs61 Hz +9%
Qts0.31 +24%, worse
Vas32 L −20%, better
BL15 T·m +3%
Xmax4 mm –
Sensitivity95.5 dB −0.8
B&C10FW64
£123.92 · 32% less, betterFs63 Hz +13%, worse
Qts0.23 −8%
Vas27 L −33%, better
BL16.4 T·m +13%, better
Xmax5 mm +25%, better
Sensitivity96.3 dB –
FaitalPRO10PR300
£129.78 · 29% less, betterFs60 Hz +7%
Qts0.28 +12%, worse
Vas42.2 L +6%
BL14.1 T·m –
Xmax4.9 mm +23%, better
Sensitivity97 dB +0.7
CelestionCF1025C
£135.00 · 26% less, betterFs55 Hz –
Qts0.27 +6%
Vas38.6 L −3%
BL14.8 T·m –
Xmax4.3 mm +6%
Sensitivity95.3 dB −1
B&C10NDL64
£144.00 · 21% less, betterFs56 Hz –
Qts0.26 +4%
Vas31 L −23%, better
BL16.2 T·m +12%, better
Xmax6 mm +50%, better
Sensitivity94.8 dB −1.5
B&C10MBX64
£157.30 · 14% less, betterFs65 Hz +16%, worse
Qts0.26 +4%
Vas28 L −30%, better
BL16.9 T·m +17%, better
Xmax4 mm –
Sensitivity96.6 dB –
Eighteen Sound10NTLS2000
£157.64 · 14% less, betterFs50 Hz −11%, better
Qts0.26 +4%
Vas38 L −5%
BL16.7 T·m +15%, better
Xmax7.4 mm +85%, better
Sensitivity94.5 dB −1.8
Eighteen Sound10NTLW2000
£157.68 · 14% less, betterFs57 Hz –
Qts0.22 −12%, better
Vas31 L −23%, better
BL17.9 T·m +23%, better
Xmax4.4 mm +10%, better
Sensitivity96.2 dB –
Eighteen Sound10NW650
£159.93 · 12% less, betterFs51 Hz −9%
Qts0.28 +12%, worse
Vas48 L +20%, worse
BL14 T·m −3%
Xmax7 mm +75%, better
Sensitivity95.4 dB −0.9
RCFL10-750YK
£166.00 · 9% less, betterFs68 Hz +21%, worse
Qts0.24 −4%
Vas26 L −35%, better
BL17.5 T·m +21%, better
Xmax3 mm −25%, worse
Sensitivity97.2 dB +0.9
Eighteen Sound10M600
£175.83 · 4% lessFs70 Hz +25%, worse
Qts0.23 −8%
Vas25.6 L −36%, better
BL17.6 T·m +21%, better
Xmax4 mm –
Sensitivity97.5 dB +1.2
PRV Audio10W1000-NDY-4
£186.95 · 2% moreFs50 Hz −10%, better
Qts0.27 +8%
Vas46.4 L +16%, worse
BL12.0 T·m −17%, worse
Xmax6.5 mm +63%, better
Sensitivity95.2 dB −1.1
Eighteen Sound10NMBA520
£225.00 · 23% more, worseFs60 Hz +7%
Qts0.23 −8%
Vas42 L +5%
BL14.6 T·m –
Xmax4 mm –
Sensitivity97.8 dB +1.5
MonacorSP-10A/302PA
No current priceFs55 Hz –
Qts0.30 +20%, worse
Vas40 L –
BL15.8 T·m +9%
Xmax4 mm –
Sensitivity95.3 dB −1
Sica10 K 3 PL
No current priceFs51 Hz −10%
Qts0.26 +4%
Vas40 L –
BL16.1 T·m +11%, better
Xmax6.5 mm +63%, better
Sensitivity94.9 dB −1.4
RCFMB10N251
No current priceFs55 Hz –
Qts0.27 +8%
Vas39 L –
BL15.2 T·m +5%
Xmax5 mm +25%, better
Sensitivity95.5 dB −0.8
Sica10 PN 3
No current priceFs48 Hz −14%, better
Qts0.26 +4%
Vas40.1 L –
BL16.1 T·m +11%, better
Xmax7 mm +75%, better
Sensitivity94.1 dB −2.2, worse
CelestionNTR10-2520D
No current priceFs57 Hz –
Qts0.29 +16%, worse
Vas34.7 L −13%, better
BL15.8 T·m +9%
Xmax4 mm –
Sensitivity95.1 dB −1.2
Oberton10NHCX
No current priceFs72 Hz +28%, worse
Qts0.24 −5%
Vas24.5 L −39%, better
BL17.4 T·m +20%, better
Xmax4.3 mm +6%
Sensitivity97.7 dB +1.4
WavecorWF259PA01
No current priceFs54 Hz −4%
Qts0.29 +16%, worse
Vas31 L −23%, better
BL14.1 T·m –
Xmax4.5 mm +13%, better
Sensitivity94.3 dB −2, worse
WavecorWF259PA02
No current priceFs52 Hz −7%
Qts0.28 +12%, worse
Vas33 L −18%, better
BL16.8 T·m +16%, better
Xmax4.5 mm +13%, better
Sensitivity94.2 dB −2.1, worse
PeerlessNCP-1030R00-08
No current priceFs67 Hz +20%, worse
Qts0.23 −8%
Vas27 L −33%, better
BL19.1 T·m +32%, better
Xmax3.9 mm –
Sensitivity96.9 dB +0.6
Sica10 S 3 PL
No current priceFs43 Hz −23%, better
Qts0.27 +8%
Vas39.9 L –
BL16.9 T·m +16%, better
Xmax7 mm +75%, better
Sensitivity92.6 dB −3.7, worse
Oberton10NMB200
No current priceFs59 Hz +5%
Qts0.32 +26%, worse
Vas34.9 L −13%, better
BL14.1 T·m –
Xmax4.3 mm +6%
Sensitivity95.4 dB −0.9
PRV Audio10MB500-4
No current priceFs56 Hz –
Qts0.29 +16%, worse
Vas47.6 L +19%, worse
BL12.3 T·m −15%, worse
Xmax4.5 mm +13%, better
Sensitivity96.4 dB –
CelestionFTR10-2055D
No current priceFs58 Hz –
Qts0.34 +37%, worse
Vas36.9 L −8%
BL13.8 T·m −5%
Xmax4 mm –
Sensitivity94.6 dB −1.7
EminenceCANNABASS CB3010N-8
No current priceFs42 Hz −26%, better
Qts0.25 –
Vas55.2 L +38%, worse
BL17.2 T·m +19%, better
Xmax6.5 mm +62%, better
Sensitivity94 dB −2.3, worse
No photo
REDCATT10NPM-1
No current priceFs64 Hz +14%, worse
Qts0.28 +12%, worse
Vas23 L −43%, better
BL18.3 T·m +26%, better
Xmax4.0 mm –
Sensitivity95.2 dB −1.1
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann5.0 out of 56 ratings · Checked 26 Oct 2026Read reviews on Thomann
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Business | £187.96, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £187.96 | In stock | Visit shop at Lean Audio | |
Thomann | £255.00 | 36% above the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 1 Apr
Recent changes
- 19 OctThomann£257.00 → £255.00Down 0.8% from £257.00
- 11 OctThomann£258.00 → £257.00Down 0.4% from £258.00
- 3 OctThomann£260.00 → £258.00Down 0.8% from £260.00