Eighteen Sound design
12" 2-WAY point source
- Drivers
- 1 × 12NTLW3500, 4 Ω1 × 12NTLW3500, 8 Ωor 12NW350, 4 Ω
Designed with the 4 Ω version.
12-inch LF driver · 900 W
Eighteen Sound 12NTLW3500 16Ω
50–3000 Hz
No price for delivery to the UK
- Fs
- 57Hz
- Xmax
- 7.9mm
- SPL
- 93dB
- Pe
- 900W
- BL
- 23.5T·m
- Vd
- 419cm³
- Qts
- 0.54
- 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 2 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v2
frequency response
Frequency response
174 plotted pointsSource file SHA-256 0cead35dba26…Medium confidence2,332 selected pixels of 2,796 - Trace datasheet-response-trace-poc/v2
impedance
Impedance response
240 plotted pointsSource file SHA-256 0cead35dba26…Medium confidence889 selected pixels of 1,118
Published graphs
Eighteen Sound 12NTLW3500 is a 12-inch 16 ohm LF driver rated at 900 W RMS. The validated T/S data includes Fs 57 Hz, Qts 0.54, Vas 40 L, Xmax 7.9 mm, sensitivity 93.2 dB, plus 419 cm³ Vd and 102 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 57Hz
- Qts
- 0.54
- Qes
- 0.56
- Qms
- 11.7
- Vas
- 40L
- Re
- 11.3Ω
- Le
- 0.62mH
Motor and cone
- BL
- 23.5T·m
- Sd
- 531cm²
- Mms
- 77g
- Xmax
- 7.9mm
- Vd †
- 419cm³
Power and response
- Sensitivity †
- 93.2dB
- Manufacturer sensitivity
- 95dB
- Power
- 900W
- Nominal power
- 900W
- Impedance
- 16Ω
- Range
- 50–3000Hz
- EBP †
- 102 · Leans vented
Size and mounting
- Diameter
- 310mm
- Cutout
- 282mm
- Bolt circle
- 295mm
- Depth
- 193mm
- Weight
- 4.7kg
Other published values
- Power Program
- 1800
Sensitivity shows 93.2 dB, calculated from the T/S values. Eighteen Sound publishes 95.0 dB, 1.8 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 12″
- BL
- 23.5T·m
- Fs
- 57Hz
- Le
- 0.62mH
- Re
- 11.3Ω
- Sd
- 531cm²
- Mms
- 77g
- Qes
- 0.56
- Qms
- 11.7
- Qts
- 0.54
- SPL
- 93.2dB
- Vas
- 40L
- Xmax
- 7.9mm
- Power
- 900W
- Impedance
- 16Ω
- Sensitivity
- 95dB
- Low limit
- 50Hz
- Nominal power
- 900W
- Power Program
- 1800
- Calculated sensitivity †
- 93.2dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 95dB
- Weight
- 4.7kg
- Diameter
- 310mm
- Depth
- 193mm
- Cutout
- 282mm
- Bolt circle
- 295mm
02
Designs
Cabinets for the 12NTLW3500: a design and a suggested box from Eighteen Sound.
All 12NTLW3500 designsHow we find designsEighteen Sound’s design
From the maker, with plans to download
Eighteen Sound’s suggested box
From Eighteen Sound’s 12NTLW3500 page
- Net volume
- 50L
- Tuning
- 60Hz
Eighteen Sound 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 12NTLW3500. Clear differences are green when better and red when worse.
This driver12NTLW3500
Best price
–
Fs
57 Hz
Qts
0.54
Vas
40 L
BL
23.5 T·m
Xmax
7.9 mm
Sensitivity
93.2 dB
Power
900 W
Beyma12CMV3
£75.00Fs52 Hz −9%
Qts0.55 –
Vas85 L +113%, worse
BL12.3 T·m −48%, worse
Xmax7 mm −11%, worse
Sensitivity95.2 dB +2, better
BishopSoundBDP12
£89.99Fs68 Hz +18%, worse
Qts0.49 −9%
Vas26.3 L −34%, better
BL20.4 T·m −13%, worse
Xmax7 mm −11%, worse
Sensitivity94 dB +0.8
Beyma12BR70
£99.85Fs31 Hz −46%, better
Qts0.50 −7%
Vas142 L +255%, worse
BL12.1 T·m −49%, worse
Xmax8 mm –
Sensitivity90.8 dB −2.4, worse
FaitalPRO12PR320
£156.23Fs45 Hz −21%, better
Qts0.52 −4%
Vas96.7 L +142%, worse
BL17.3 T·m −26%, worse
Xmax7.3 mm −8%
Sensitivity94 dB +0.8
B&C12FW88
£163.69Fs53 Hz −7%
Qts0.33 −39%, better
Vas45.7 L +14%, worse
BL19.5 T·m −17%, worse
Xmax8 mm –
Sensitivity94.9 dB +1.7
SB AudienceROSSO-12CX350
£184.95Fs49 Hz −14%, better
Qts0.49 −9%
Vas90.4 L +126%, worse
BL12.1 T·m −49%, worse
Xmax8.2 mm +4%
Sensitivity95.1 dB +1.9
PRV Audio12MR2000X
£186.24Fs65 Hz +14%, worse
Qts0.28 −48%, better
Vas39.6 L –
BL23.2 T·m –
Xmax6.6 mm −16%, worse
Sensitivity97.9 dB +4.7, better
B&C12PS100
£191.00Fs44 Hz −23%, better
Qts0.27 −50%, better
Vas47 L +18%, worse
BL22.5 T·m −4%
Xmax8 mm –
Sensitivity93.4 dB –
B&C12NDL88
£208.11Fs50 Hz −12%, better
Qts0.37 −31%, better
Vas55 L +38%, worse
BL25.3 T·m +8%
Xmax8 mm –
Sensitivity94.6 dB +1.4
SB AudienceNERO-12MWN400D
£208.90Fs66 Hz +16%, worse
Qts0.52 −4%
Vas31.1 L −22%, better
BL17.8 T·m −24%, worse
Xmax7.1 mm −10%
Sensitivity94.1 dB +0.9
FaitalPRO12FH520
£208.94Fs55 Hz −4%
Qts0.47 −13%, better
Vas56.4 L +41%, worse
BL23.5 T·m –
Xmax7 mm −11%, worse
Sensitivity94.9 dB +1.7
B&C12TBX100
£209.86Fs44 Hz −23%, better
Qts0.23 −57%, better
Vas41.1 L –
BL22.9 T·m –
Xmax9 mm +14%, better
Sensitivity93.7 dB +0.5
CelestionFTR12-4080HDX
£219.00Fs61 Hz +7%
Qts0.40 −27%, better
Vas21.5 L −46%, better
BL24.6 T·m +5%
Xmax8 mm –
Sensitivity92.1 dB −1.1
Eighteen Sound12NW530
£228.40Fs55 Hz −4%
Qts0.37 −31%, better
Vas36 L −10%, better
BL19.7 T·m −16%, worse
Xmax8 mm –
Sensitivity94 dB +0.8
FaitalPRO12HP1020
£232.34Fs55 Hz −4%
Qts0.27 −50%, better
Vas38.6 L −3%
BL24.3 T·m +3%
Xmax9 mm +14%, better
Sensitivity95.6 dB +2.4, better
B&C12BG76
£250.08Fs44 Hz −23%, better
Qts0.41 −24%, better
Vas32 L −20%, better
BL22.7 T·m −3%
Xmax9.5 mm +20%, better
Sensitivity89.9 dB −3.3, worse
B&C12NW100
£258.25Fs44 Hz −23%, better
Qts0.20 −63%, better
Vas43.3 L +8%
BL24.4 T·m +4%
Xmax9 mm +14%, better
Sensitivity94.5 dB +1.3
Beyma12P1000ND
£317.70Fs47 Hz −18%, better
Qts0.26 −52%, better
Vas49 L +23%, worse
BL23.5 T·m –
Xmax8 mm –
Sensitivity94.8 dB +1.6
Eighteen Sound12NTLW2500
No current priceFs62 Hz +9%
Qts0.50 −7%
Vas42 L +5%
BL21.8 T·m −7%
Xmax7.6 mm −4%
Sensitivity94.9 dB +1.7
PeerlessFSL-1230R04-04
No current priceFs56 Hz –
Qts0.54 –
Vas47.4 L +18%, worse
BL11.9 T·m −49%, worse
Xmax7.2 mm −9%
Sensitivity93.7 dB +0.5
EminenceSWAMP THANG
No current priceFs97 Hz +70%, worse
Qts0.53 –
Vas41.3 L +3%
BL14.2 T·m −40%, worse
Xmax0.8 mm −90%, worse
Sensitivity100.4 dB +7.2, better
Eighteen Sound12LW801
No current priceFs54 Hz −5%
Qts0.33 −39%, better
Vas41 L –
BL20.3 T·m −14%, worse
Xmax8 mm –
Sensitivity94.8 dB +1.6
Oberton12NB601
No current priceFs50 Hz −11%, better
Qts0.30 −44%, better
Vas38.7 L −3%
BL22.9 T·m –
Xmax8.8 mm +11%, better
Sensitivity94 dB +0.8
PRV Audio12W5000-4
No current priceFs88 Hz +54%, worse
Qts0.51 −6%
Vas10.3 L −74%, better
BL21.6 T·m −8%
Xmax10 mm +27%, better
Sensitivity93.3 dB –
HiViSS12
No current priceFs33 Hz −42%, better
Qts0.55 –
Vas105.9 L +165%, worse
BL10.7 T·m −54%, worse
Xmax7.3 mm −8%
Sensitivity90 dB −3.2, worse
Sica12 SR 4 CP
No current priceFs38 Hz −33%, better
Qts0.30 −44%, better
Vas41.7 L +4%
BL24 T·m –
Xmax9 mm +14%, better
Sensitivity90.7 dB −2.5, worse
P.AudioEX12-300S
No current priceFs66 Hz +16%, worse
Qts0.54 –
Vas45.9 L +15%, worse
BL13.7 T·m −42%, worse
Xmax3.1 mm −61%, worse
Sensitivity95.2 dB +2, better
PeerlessNCP-1230R01-08
No current priceFs63 Hz +11%, worse
Qts0.37 −31%, better
Vas46.3 L +16%, worse
BL18.1 T·m −23%, worse
Xmax7.9 mm –
Sensitivity96.7 dB +3.5, better
LavoceWSF121.70G
No current priceFs82 Hz +44%, worse
Qts0.59 +9%
Vas41 L –
BL13.6 T·m −42%, worse
Xmax2.7 mm −66%, worse
Sensitivity97.6 dB +4.4, better
EminenceGA-SC64
No current priceFs88 Hz +54%, worse
Qts0.58 +7%
Vas45.0 L +12%, worse
BL13.8 T·m −41%, worse
Xmax1.2 mm −84%, worse
Sensitivity99.1 dB +5.9, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
None of the shops we track lists delivery to the UK at checkout.