Horn Driver   Woofer   Coaxial speaker   no longer sold  

Eighteen Sound

Eighteen Sound is a designer and manufacturer of high quality professional audio loudspeakers, with advanced development and manufacturing technologies, and located in Reggio Emilia, Italy.


 

no longer sold


1" Driver HD 120       order no. not-available       - not available
44 mm driver with high quality cone.
  • power handling (continuous/programme) = 25 W
  • frequency range = 2000-18000 Hz
  • resonance frequency fs = 2100 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 108 dB (2,83V; 1m)
  • DC resistance Re = 5,7 Ohm
  • voice coil diameter = 44 mm
PDF data sheet

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1" Driver/Horn 90 x 60 - XD 120       order no. not-available       - not available
44 mm driver with high quality cone.
  • power handling (continuous/programme) = 25 W
  • frequency range = 2000-18000 Hz
  • resonance frequency fs = 2100 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 108 dB (2,83V; 1m)
  • DC resistance Re = 5,7 Ohm
  • voice coil diameter = 44 mm
  • mounting diameter d = 150x200 mm
  • mounting depth (not countersunk) t = 150 mm
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Neodym Driver ND 1060       order no. not-available       - not available
44 mm driver with high quality cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 40 W
  • frequency range = 1600-20000 Hz
  • resonance frequency fs = 780 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 108 dB (2,83V; 1m)
  • DC resistance Re = 6,2 Ohm
  • voice coil diameter = 44 mm

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1" Neodym Driver ND 1080       order no. not-available       - not available
44 mm driver with high quality cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 50 W
  • frequency range = 1600-20000 Hz
  • resonance frequency fs = 980 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 108 dB (2,83V; 1m)
  • DC resistance Re = 6,2 Ohm
  • voice coil diameter = 44 mm
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Titanium Driver ND 4015 T       order no. 18s-nd4015-t       - not available
1.5 inch high frequency compression driver with titanium cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 160/320 W
  • frequency range = 800-20000 Hz
  • resonance frequency fs = 400 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 111 dB (2,83V; 1m)
  • DC resistance Re = 6 Ohm
  • force factor BL = 14,1 N/A
  • voice coil diameter = 100 mm
  • mass m = 3,2 kg
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Neodym Driver NSD 4015 N       order no. 18s-1-5nsd4015n       - not available
1.5 inch high frequency compression driver with titanium cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 160/320 W
  • frequency range = 800-20000 Hz
  • resonance frequency fs = 390 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 111 dB (2,83V; 1m)
  • DC resistance Re = 6 Ohm
  • force factor BL = 17 N/A
  • voice coil diameter = 100 mm
  • mass m = 3,2 kg
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XR 1564       order no. 18s-xr1564-alu       - not available
Horn for a compression driver with 1,5 inch throat.
  • Throat diameter = 1,5 inch
  • nominal angle (HxV) = 60x40 Deg
  • Cut off frequency : 800 Hz
  • over all dimensions (HxWxD) = 270 x 270 x 180 mm
  • baffle cutout dimensions (HxW) = 250 x 250 mm
  • net weight = 1,9 kg
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XR 2064       order no. 18s-xr2064-alu       - not available
Horn for a compression driver with 2 inch throat.
  • Throat diameter = 2 inch
  • nominal angle (HxV) = 60x40 Deg
  • Cut off frequency : 800 Hz
  • over all dimensions (HxWxD) = 270 x 270 x 200 mm
  • baffle cutout dimensions (HxW) = 250 x 250 mm
  • net weight = 2 kg
PDF data sheet

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recommended cabinet 1:
closed cabinet with 0,53 L volume
from 396/250 Hz (-3dB/-8dB)

recommended cabinet 2:
1,2 L volume bass reflex cabinet
with HP50 reflex tube, 8 cm long.
from 240/180 Hz (-3dB/-8dB).

6 ND 410       order no. 18s-6nd-nm410       - not available
15 cm midrange driver with paper cone. The basket is made of die-cast. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 240/480 W
  • frequency range = 200-8000 Hz
  • resonance frequency fs = 120 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 102 dB (2,83V; 1m)
  • DC resistance Re = 5,9 Ohm
  • force factor BL = 11,6 N/A
  • voice coil inductance L = 0,67 mH
  • effective piston radiating area Sd = 143 cm2
  • effective mechanical mass incl. air load mms = 8,2 g
  • equivalent volume of compliance Vas = 6,2 l
  • total Q factor Qts = 0,24 (Qms=2,2, Qes=0,27)
  • voice coil diameter = 44 mm
  • maximum peak linear excursion vibration xlin = +/- 2 mm
  • mounting diameter d = 148 mm
  • overall diameter d = 162 mm
  • mounting depth (not countersunk) t = 60 mm
  • mass m = 1,25 kg
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6 ND 410, 16 Ohm       order no. 18s-6nd-nm410-16       - not available
15 cm midrange driver with paper cone. The basket is made of die-cast. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 240/480 W
  • impedance R = 16 Ohm
  • effective piston radiating area Sd = 143 cm2
  • voice coil diameter = 44 mm
  • mounting diameter d = 148 mm
  • overall diameter d = 162 mm
  • mounting depth (not countersunk) t = 60 mm
  • mass m = 1,25 kg
PDF data sheet

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8 MB 400, 4 Ohm       order no. 18s-8mb400-4       - not available
20 cm bass-midrange driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 280/400 W
  • frequency range = 55-5200 Hz
  • impedance R = 4 Ohm
  • effective piston radiating area Sd = 227 cm2
  • voice coil diameter = 51 mm
  • mounting diameter d = 185 mm
  • overall diameter d = 210 mm
  • mounting depth (not countersunk) t = 101 mm
  • mass m = 3,6 kg
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recommended cabinet 1:
closed cabinet with 10,1 L volume
from 137/86 Hz (-3dB/-8dB)

recommended cabinet 2:
33 L volume bass reflex cabinet
with 2x HP100 reflex tube, 17 cm long.
from 72/56 Hz (-3dB/-8dB).

12 W 700       order no. 18s-12w700       - not available
30 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 450/700 W
  • frequency range = 55-4200 Hz
  • resonance frequency fs = 58 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 98 dB (2,83V; 1m)
  • DC resistance Re = 5,7 Ohm
  • force factor BL = 17,7 N/A
  • voice coil inductance L = 1,48 mH
  • effective piston radiating area Sd = 531 cm2
  • effective mechanical mass incl. air load mms = 51 g
  • equivalent volume of compliance Vas = 55 l
  • total Q factor Qts = 0,34 (Qms=3,93, Qes=0,37)
  • voice coil diameter = 75 mm
  • maximum peak linear excursion vibration xlin = +/- 6,5 mm
  • mounting diameter d = 282 mm
  • overall diameter d = 315 mm
  • mounting depth (not countersunk) t = 148 mm
  • mass m = 8,2 kg
PDF data sheet

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12 LW 801, 4 Ohm       order no. 18s-12lw801-4       - not available
30 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 500/800 W
  • frequency range = 40-4000 Hz
  • impedance R = 4 Ohm
  • effective piston radiating area Sd = 531 cm2
  • voice coil diameter = 75 mm
  • mounting diameter d = 282 mm
  • overall diameter d = 315 mm
  • mounting depth (not countersunk) t = 149 mm
  • mass m = 8,1 kg
PDF data sheet

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recommended cabinet 1:
closed cabinet with 17 L volume
from 118/75 Hz (-3dB/-8dB)

recommended cabinet 2:
36 L volume bass reflex cabinet
with 2x HP100 reflex tube, 25 cm long.
from 74/55 Hz (-3dB/-8dB).

15 W 930       order no. not-available       - not available
38 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 500/800 W
  • frequency range = 50-3600 Hz
  • resonance frequency fs = 33 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 98 dB (2,83V; 1m)
  • DC resistance Re = 5,5 Ohm
  • force factor BL = 22,1 N/A
  • voice coil inductance L = 1,47 mH
  • effective piston radiating area Sd = 860 cm2
  • effective mechanical mass incl. air load mms = 97 g
  • equivalent volume of compliance Vas = 240 l
  • total Q factor Qts = 0,22 (Qms=8,78, Qes=0,23)
  • voice coil diameter = 75 mm
  • maximum peak linear excursion vibration xlin = +/- 7,5 mm
  • mounting diameter d = 360 mm
  • overall diameter d = 393 mm
  • mounting depth (not countersunk) t = 185 mm
  • mass m = 7,6 kg
PDF data sheet

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15 W 930, 4 Ohm       order no. not-available       - not available
38 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 500/800 W
  • frequency range = 50-3600 Hz
  • impedance R = 4 Ohm
  • effective piston radiating area Sd = 860 cm2
  • voice coil diameter = 75 mm
  • mounting diameter d = 360 mm
  • overall diameter d = 393 mm
  • mounting depth (not countersunk) t = 185 mm
  • mass m = 7,6 kg
PDF data sheet

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15 W 930, 16 Ohm       order no. not-available       - not available
38 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 500/800 W
  • frequency range = 50-3600 Hz
  • impedance R = 16 Ohm
  • effective piston radiating area Sd = 860 cm2
  • voice coil diameter = 75 mm
  • mounting diameter d = 360 mm
  • overall diameter d = 393 mm
  • mounting depth (not countersunk) t = 185 mm
  • mass m = 7,6 kg
PDF data sheet

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recommended cabinet 1:
closed cabinet with 12,4 L volume
from 143/90 Hz (-3dB/-8dB)

recommended cabinet 2:
30 L volume bass reflex cabinet
with 2x HP100 reflex tube, 18 cm long.
from 85/64 Hz (-3dB/-8dB).

15 W 1200       order no. 18s-15w1200       - not available
37 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 850/1200 W
  • frequency range = 43-4100 Hz
  • resonance frequency fs = 45 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 99,5 dB (2,83V; 1m)
  • DC resistance Re = 5,5 Ohm
  • force factor BL = 25 N/A
  • voice coil inductance L = 1,7 mH
  • effective piston radiating area Sd = 900 cm2
  • effective mechanical mass incl. air load mms = 108 g
  • equivalent volume of compliance Vas = 134 l
  • total Q factor Qts = 0,25 (Qms=4,1, Qes=0,27)
  • voice coil diameter = 100 mm
  • maximum peak linear excursion vibration xlin = +/- 6 mm
  • mounting diameter d = 353 mm
  • overall diameter d = 387 mm
  • mounting depth (not countersunk) t = 162 mm
  • mass m = 12,1 kg
PDF data sheet

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recommended cabinet 1:
closed cabinet with 119 L volume
from 76/48 Hz (-3dB/-8dB)

recommended cabinet 2:
486 L volume bass reflex cabinet
with 4x HP100 reflex tube, -2 cm long.
from 35/30 Hz (-3dB/-8dB).

15 W 500       order no. 18s-15w500       - not available
37 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 350/500 W
  • frequency range = 50-4500 Hz
  • resonance frequency fs = 50 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 100,5 dB (2,83V; 1m)
  • DC resistance Re = 5,2 Ohm
  • force factor BL = 12,6 N/A
  • voice coil inductance L = 1,04 mH
  • effective piston radiating area Sd = 850 cm2
  • effective mechanical mass incl. air load mms = 55 g
  • equivalent volume of compliance Vas = 189 l
  • total Q factor Qts = 0,52 (Qms=9,64, Qes=0,55)
  • voice coil diameter = 64 mm
  • maximum peak linear excursion vibration xlin = +/- 4 mm
  • mounting diameter d = 353 mm
  • overall diameter d = 387 mm
  • mounting depth (not countersunk) t = 161 mm
  • mass m = 4,3 kg
PDF data sheet

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recommended cabinet 1:
closed cabinet with 37 L volume
from 94/59 Hz (-3dB/-8dB)

recommended cabinet 2:
102 L volume bass reflex cabinet
with 4x HP100 reflex tube, 30 cm long.
from 53/41 Hz (-3dB/-8dB).

18 ND 930       order no. 18s-18nd930       - not available
44 cm bass driver with paper cone. The basket is made of die-cast. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 500/800 W
  • frequency range = 35-3800 Hz
  • resonance frequency fs = 33 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 99 dB (2,83V; 1m)
  • DC resistance Re = 5,5 Ohm
  • force factor BL = 22 N/A
  • voice coil inductance L = 1,7 mH
  • effective piston radiating area Sd = 1133 cm2
  • effective mechanical mass incl. air load mms = 133 g
  • equivalent volume of compliance Vas = 316 l
  • total Q factor Qts = 0,28 (Qms=7,65, Qes=0,29)
  • voice coil diameter = 75 mm
  • maximum peak linear excursion vibration xlin = +/- 7,5 mm
  • mounting diameter d = 416 mm
  • overall diameter d = 462 mm
  • mounting depth (not countersunk) t = 201,5 mm
  • mass m = 5,9 kg
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recommended cabinet 1:
closed cabinet with 18 L volume
from 97/61 Hz (-3dB/-8dB)

recommended cabinet 2:
48 L volume bass reflex cabinet
with 2x HP100 reflex tube, 28 cm long.
from 55/42 Hz (-3dB/-8dB).

18 NLW 9600       order no. 18s-18nlw9600carb       - not available
44 cm bass driver with paper cone. The basket is made of die-cast. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 1800/3600 W
  • frequency range = 32-2500 Hz
  • resonance frequency fs = 34 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 97 dB (2,83V; 1m)
  • DC resistance Re = 4,7 Ohm
  • force factor BL = 30 N/A
  • voice coil inductance L = 2,11 mH
  • effective piston radiating area Sd = 1134 cm2
  • effective mechanical mass incl. air load mms = 261 g
  • equivalent volume of compliance Vas = 149 l
  • total Q factor Qts = 0,28 (Qms=8,7, Qes=0,29)
  • voice coil diameter = 135 mm
  • maximum peak linear excursion vibration xlin = +/- 14 mm
  • mounting diameter d = 416 mm
  • overall diameter d = 462 mm
  • mounting depth (not countersunk) t = 236 mm
  • mass m = 12,5 kg
PDF data sheet

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recommended cabinet 1:
closed cabinet with 67 L volume
from 76/48 Hz (-3dB/-8dB)

recommended cabinet 2:
226 L volume bass reflex cabinet
with 4x HP100 reflex tube, 16 cm long.
from 39/31 Hz (-3dB/-8dB).

21 NLW 9400       order no. 18s-21nlw9400       - not available
52 cm bass driver with paper cone. The basket is made of die-cast. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 1200/2400 W
  • frequency range = 30-1500 Hz
  • resonance frequency fs = 33 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 97,5 dB (2,83V; 1m)
  • DC resistance Re = 3,5 Ohm
  • force factor BL = 23 N/A
  • voice coil inductance L = 1,51 mH
  • effective piston radiating area Sd = 1662 cm2
  • effective mechanical mass incl. air load mms = 248 g
  • equivalent volume of compliance Vas = 340 l
  • total Q factor Qts = 0,35 (Qms=8,85, Qes=0,36)
  • voice coil diameter = 100 mm
  • maximum peak linear excursion vibration xlin = +/- 9,5 mm
  • mounting diameter d = 492 mm
  • overall diameter d = 545 mm
  • mounting depth (not countersunk) t = 240 mm
  • mass m = 9,45 kg
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21 NLW 9400, 4 Ohm       order no. 18s-21nlw9400-4       - not available
52 cm bass driver with paper cone. The basket is made of die-cast. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 1200/2400 W
  • frequency range = 30-1500 Hz
  • impedance R = 4 Ohm
  • effective piston radiating area Sd = 1662 cm2
  • voice coil diameter = 100 mm
  • mounting diameter d = 492 mm
  • overall diameter d = 545 mm
  • mounting depth (not countersunk) t = 240 mm
  • mass m = 9,45 kg
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recommended cabinet 1:
closed cabinet with 5,8 L volume
from 135/85 Hz (-3dB/-8dB)

recommended cabinet 2:
21 L volume bass reflex cabinet
with HP100 reflex tube, 16 cm long.
from 68/54 Hz (-3dB/-8dB).

8 CX 400 F       order no. 18s-8cx400f       - not available (_)
20 cm coax driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 280/400 W
  • frequency range = 65-20000 Hz
  • resonance frequency fs = 64 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 95 dB (2,83V; 1m)
  • DC resistance Re = 5 Ohm
  • force factor BL = 9,3 N/A
  • voice coil inductance L = 0,96 mH
  • effective piston radiating area Sd = 227 cm2
  • effective mechanical mass incl. air load mms = 18 g
  • equivalent volume of compliance Vas = 23,9 l
  • total Q factor Qts = 0,38 (Qms=3,23, Qes=0,43)
  • voice coil diameter = 51 mm
  • maximum peak linear excursion vibration xlin = +/- 5,8 mm
  • mounting diameter d = 186 mm
  • overall diameter d = 210 mm
  • mounting depth (not countersunk) t = 150,5 mm
  • mass m = 4,4 kg
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Horn Driver   Woofer   Coaxial speaker   no longer sold  
The cabinet volume calculations are executed considering an external resistance of 0.3 Ohm. We are using, if no other data is known or available, the information supplied by the manufacturer.

Please note: the frequency response doesn't say much about the cut-off frequency inside the cabinet! Therefore, we mostly give you 2 examples with dimensioning considerations and an indication, how low the loudspeaker will reproduce.

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© Copyright 2018 Iris Strassacker; All rights reserved. - errors and omissions excepted