Eighteen Sound design
2x18" subwoofer
- Drivers
- 18TLW3000or 18LW2420or 18LW2600or 18LW4100
18-inch LF driver · 1,300 W
Eighteen Sound 18LW2420 4Ω
30–2000 Hz
No price for delivery to the UK
- Fs
- 34Hz
- Xmax
- 10mm
- SPL
- 96dB
- Pe
- 1300W
- BL
- 20.2T·m
- Vd
- 1225cm³
- Qts
- 0.31
- Vas
- 208L
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
240 plotted pointsSource file SHA-256 00c58d570bea…Medium confidence1,553 selected pixels of 1,850 - Trace datasheet-response-trace-poc/v2
impedance
Impedance response
240 plotted pointsSource file SHA-256 00c58d570bea…Medium confidence588 selected pixels of 826
Published graphs
Eighteen Sound 18LW2420 is an 18-inch 4 ohm LF driver rated at 1300 W RMS. The validated T/S data includes Fs 34 Hz, Qts 0.31, Vas 208 L, Xmax 10 mm, sensitivity 96.1 dB, plus 1225 cm³ Vd and 106 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
- 34Hz
- Qts
- 0.31
- Qes
- 0.32
- Qms
- 6.9
- Vas
- 208L
- Re
- 2.8Ω
- Le
- 0.87mH
Motor and cone
- BL
- 20.2T·m
- Sd
- 1225cm²
- Mms
- 221g
- Xmax
- 10mm
- Vd †
- 1225cm³
Power and response
- Sensitivity †
- 96.1dB
- Manufacturer sensitivity
- 98dB
- Power
- 1300W
- Nominal power
- 1300W
- Impedance
- 4Ω
- Range
- 30–2000Hz
- EBP †
- 106 · Leans vented
Size and mounting
- Diameter
- 462mm
- Cutout
- 422mm
- Bolt circle
- 440mm
- Depth
- 215mm
- Weight
- 12.4kg
Other published values
- Power Program
- 2600
Sensitivity shows 96.1 dB, calculated from the T/S values. Eighteen Sound publishes 98.0 dB, 1.9 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 18″
- BL
- 20.2T·m
- Fs
- 34Hz
- Le
- 0.87mH
- Re
- 2.8Ω
- Sd
- 1225cm²
- Mms
- 221g
- Qes
- 0.32
- Qms
- 6.9
- Qts
- 0.31
- SPL
- 96.1dB
- Vas
- 208L
- Xmax
- 10mm
- Power
- 1300W
- Impedance
- 4Ω
- Sensitivity
- 98dB
- Low limit
- 30Hz
- Nominal power
- 1300W
- Power Program
- 2600
- Calculated sensitivity †
- 96.1dB
- High limit
- 2000Hz
- Manufacturer sensitivity
- 98dB
- Weight
- 12.4kg
- Diameter
- 462mm
- Depth
- 215mm
- Cutout
- 422mm
- Bolt circle
- 440mm
02
Designs
Cabinets for the 18LW2420: a design and a suggested box from Eighteen Sound.
All 18LW2420 designsHow we find designsEighteen Sound’s design
From the maker, with plans to download
Eighteen Sound’s suggested box
From Eighteen Sound’s 18LW2420 page
- Net volume
- 220L
- Tuning
- 37Hz
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 18LW2420. Clear differences are green when better and red when worse.
This driver18LW2420
Best price
–
Fs
34 Hz
Qts
0.31
Vas
208 L
BL
20.2 T·m
Xmax
10 mm
Sensitivity
96.1 dB
Power
1300 W
RCFL18P300
£225.00Fs33 Hz –
Qts0.33 +6%
Vas226 L +9%
BL23.5 T·m +16%, better
Xmax8 mm −20%, worse
Sensitivity95.8 dB –
B&C18RBX100
£226.58Fs40 Hz +18%, worse
Qts0.34 +10%
Vas220 L +6%
BL25.1 T·m +24%, better
Xmax10 mm –
Sensitivity98 dB +1.9
B&C18TBW100
£227.52Fs33 Hz –
Qts0.32 +3%
Vas181.5 L −13%, better
BL22.8 T·m +13%, better
Xmax12 mm +20%, better
Sensitivity94.9 dB −1.2
B&C18NW100
£234.45Fs30 Hz −12%, better
Qts0.27 −13%, better
Vas203.5 L –
BL24.7 T·m +22%, better
Xmax9 mm −10%, worse
Sensitivity95 dB −1.1
B&C18TBX100
£234.85Fs30 Hz −12%, better
Qts0.31 –
Vas256 L +23%, worse
BL22 T·m +9%
Xmax9 mm −10%, worse
Sensitivity95.2 dB −0.9
FaitalPRO18HP1010
£246.55Fs35 Hz –
Qts0.31 –
Vas225.9 L +9%
BL18.4 T·m −9%
Xmax9.8 mm –
Sensitivity96.8 dB +0.7
Beyma18P1000FEV2S
£249.00Fs33 Hz –
Qts0.32 +3%
Vas230 L +11%, worse
BL26.8 T·m +33%, better
Xmax8 mm −20%, worse
Sensitivity96 dB –
RCFLF18G401
£252.42Fs33 Hz –
Qts0.29 −6%
Vas268 L +29%, worse
BL24.6 T·m +22%, better
Xmax9 mm −10%, worse
Sensitivity97.1 dB +1
FaitalPRO18HP1022
£265.78Fs35 Hz –
Qts0.30 −3%
Vas204.9 L –
BL28 T·m +39%, better
Xmax9.5 mm −5%
Sensitivity96.6 dB +0.5
Eighteen Sound18LW1400
£266.74Fs33 Hz –
Qts0.32 +3%
Vas210 L –
BL22.1 T·m +9%
Xmax9 mm −10%, worse
Sensitivity95.5 dB −0.6
Eighteen Sound18LW2400
£272.63Fs33 Hz –
Qts0.32 +3%
Vas235 L +13%, worse
BL18 T·m −11%, worse
Xmax9.5 mm −5%
Sensitivity96.1 dB –
Beyma18PW1400FE
£273.68Fs32 Hz −6%
Qts0.27 −13%, better
Vas228.9 L +10%, worse
BL29 T·m +44%, better
Xmax10 mm –
Sensitivity96.3 dB –
B&C18NBX100
£274.00Fs35 Hz –
Qts0.37 +19%, worse
Vas192 L −8%
BL22 T·m +9%
Xmax10 mm –
Sensitivity95.3 dB −0.8
Beyma18LEX1200ND
£278.64Fs36 Hz +6%
Qts0.33 +6%
Vas219 L +5%
BL26.4 T·m +31%, better
Xmax11 mm +10%, better
Sensitivity96.7 dB +0.6
FaneCOLOSSUS 18SB
£279.00Fs36 Hz +6%
Qts0.35 +12%, worse
Vas199 L −4%
BL24 T·m +19%, better
Xmax8.3 mm −18%, worse
Sensitivity96.1 dB –
FaitalPRO18HP1030
£300.04Fs35 Hz –
Qts0.32 +3%
Vas172.2 L −17%, better
BL21.7 T·m +7%
Xmax12.4 mm +24%, better
Sensitivity95.5 dB −0.6
Eighteen Sound18TLW3000
£336.82Fs32 Hz −6%
Qts0.35 +13%, worse
Vas185 L −11%, better
BL20 T·m –
Xmax12 mm +20%, better
Sensitivity94.3 dB −1.8
FaitalPRO18HW1070
£350.19Fs32 Hz −6%
Qts0.33 +6%
Vas191.5 L −8%
BL21.6 T·m +7%
Xmax13 mm +30%, better
Sensitivity94.7 dB −1.4
FaitalPRO18XL1600
£399.95Fs32 Hz −6%
Qts0.31 –
Vas201.1 L −3%
BL21.7 T·m +7%
Xmax12.9 mm +29%, better
Sensitivity95.2 dB −0.9
FaitalPRO18HP1060
£435.44Fs35 Hz –
Qts0.33 +6%
Vas184.4 L −11%, better
BL20.7 T·m –
Xmax12.4 mm +24%, better
Sensitivity95.7 dB –
FaneCOLOSSUS 18-800N
No current priceFs38 Hz +12%, worse
Qts0.31 –
Vas217 L +4%
BL24 T·m +19%, better
Xmax8 mm −20%, worse
Sensitivity97.7 dB +1.6
Precision DevicesPD.184C002
No current priceFs40 Hz +18%, worse
Qts0.34 +10%
Vas268 L +29%, worse
BL21 T·m +4%
Xmax9.7 mm −3%
Sensitivity98.8 dB +2.7, better
Oberton18XB700
No current priceFs36 Hz +6%
Qts0.30 –
Vas183.2 L −12%, better
BL26.1 T·m +29%, better
Xmax9 mm −10%, worse
Sensitivity96.4 dB –
Oberton18XB1201
No current priceFs38 Hz +12%, worse
Qts0.32 –
Vas159.4 L −23%, better
BL26.7 T·m +32%, better
Xmax10.5 mm +5%
Sensitivity96.3 dB –
Oberton18B35
No current priceFs32 Hz −7%
Qts0.32 +5%
Vas333.6 L +60%, worse
BL19.3 T·m −4%
Xmax9 mm −10%, worse
Sensitivity97 dB +0.9
Oberton18NXB700
No current priceFs36 Hz +7%
Qts0.31 –
Vas155.5 L −25%, better
BL27.8 T·m +38%, better
Xmax9 mm −10%, worse
Sensitivity95.6 dB −0.5
RCFLF18G908
No current priceFs33 Hz –
Qts0.29 −6%
Vas268 L +29%, worse
BL24.6 T·m +22%, better
Xmax9 mm −10%, worse
Sensitivity97.1 dB +1
Oberton18B500
No current priceFs35 Hz –
Qts0.28 −11%, better
Vas243.9 L +17%, worse
BL24.1 T·m +19%, better
Xmax8.8 mm −13%, worse
Sensitivity97.7 dB +1.6
Sica18 S 4 CP
No current priceFs33 Hz –
Qts0.35 +13%, worse
Vas225 L +8%
BL23.5 T·m +16%, better
Xmax11 mm +10%, better
Sensitivity95.2 dB −0.9
Eighteen Sound18W1300
No current priceFs35 Hz –
Qts0.33 +6%
Vas336 L +62%, worse
BL20.4 T·m –
Xmax8.5 mm −15%, worse
Sensitivity98.2 dB +2.1, 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.