18sound kit18 horn

7/25/2019 18Sound Kit18 Horn

1/23

Application Note #10:

Building an effective

high power

horn loaded 18 subwoofer

Eighteen Sound Technical Department

December, 2010

Eighteen Sounda AEB S.r.l. Company

Via dell'Industria 2042025 Cavriago

Reggio EmiliaItaly

Rev. 1PRELIMINARY


2/23

18 Horn Subwoofer kit

Rev. 1

High performance 1 x 18 subwoofer system

Multiple driver choice is possible:18LW2400 or 18NLW9400

18LW2400woofer key features:

4 interleaved sandwichedvoice coil (ISV)

Doublesilicon spider (DSS)

1200W AES power handling

18NLW9400woofer key features:

4 interleaved sandwichedvoice coil (ISV)

Double silicon spider (DSS)

Neodymium magnet

1200W AES power handling

PRELIMINARY


3/23


18LW2400 Data

Rev. 1PRELIMINARY


4/23


18NLW9400 Data

Rev. 1PRELIMINARY


5/23

3

2

6

7

11B12B

1A

10

9

8

4

13

14

16 15

5

3

1B

12B12A

16

10

11A

9

8

2

6

4

5

15

13

14


Rev. 1

Internal view

The enclosure should be made of Baltic birchplywood (15mm thickness)

Bolts are M6x35mm

M6 T-Nuts are recommended

Handling, rigging and connectors are userschoice

Its recommended to well damping the cabinetinterior

You should see an example of the requireddampening on the image on the next page

An high density dampening material, such asDacron or other synthetic fibers, is required forbetter performance

PRELIMINARY


6/23

3

2

6

7

11B12B

1A

10

9

8

4

13

1416

15

5


Internal view and damping material

Rev. 1PRELIMINARY


7/23

5

8

4

1B

17B 18 2

1A

3

12B

12A

19

13

16

14

11B

6

9

17A

15

11A

10

7


Explodedview

Rev. 1PRELIMINARY


8/23

820 mm166 mm

97 mm

668 mm

785 mm

116 mm 625 mm

100 mm

815 mm

3

6

7

2

5

4

8

9

10

1B

16

15 14

150 mm

184 mm

238 mm

458 mm

678 mm

238 mm

297 mm

273 mm

517 mm

10

14

4

8

6

15

9

5

1B

2

7

16

3

194 mm


Side wiew

Rev. 1PRELIMINARY


9/23

180 mm

560 mm

590 mm

1B

12B12A

3

1A

16


Front Side

Rev. 1PRELIMINARY


10/23

410 mm

252 mm

95 angle 105 angle

328 mm

105 angle102,5 angle

102,5 angle 110 angle

273 mm


Horn Details

Rev. 1PRELIMINARY

4

8

9

10


11/23

166 mm

135 angle 135 angle

116 mm

135 angle 135 angle


Rear Details

Rev. 1PRELIMINARY

6

5


12/23

85 angle

105 angle

497 mm

8mm diameter

440 mm diameter

416 mm diameter

42 mm

245 mm

77 mm

280 mm

105 side

119 mm168 mm119 mm

Woofer details

Rev. 1PRELIMINARY



13/23

134 mm

75 mm

9 mm

30 mm

510 mm

55 mm

12 mm

26 mm484 mm

510 mm

100 mm

100 mm

100 mm

100 mm


Bottom

Rev. 1PRELIMINARY


14/23

179 mm267 mm

346 mm378 mm

28 mm

139 mm

80 angle

64,5 angle

83 angle

160 mm

50 mm


Bottom

Rev. 1PRELIMINARY


15/23

103 mm130 mm

590 mm617 mm

820 mm

23 mm

50mm510 mm

537 mm560 mm

8mm diameter

32 mm radius

100 mm radius


Bottom

Rev. 1PRELIMINARY


16/23

80 mm

117 mm

37 mm

160 mm

100 mm

100 mm

100 mm

100 mm


Bottom

Rev. 1PRELIMINARY


17/23

50 mm

510 mm560 mm

115 mm

575 mm

625 mm


Bottom

Rev. 1PRELIMINARY


18/23

37 mm80 mm

102 mm

145 mm

100 mm

100 mm

100 mm

100 mm


Bottom

Rev. 1PRELIMINARY


19/23

System Measurements and Suggested Settingswith 18LW2400 and 18NLW9400

PRELIMINARY


Rev. 1


20/23PRELIMINARY

Unfiltered Magnitude Response, 2.83V/1m and relativePhase Response with 18LW2400


Rev. 1


21/23PRELIMINARY

Impedance and Step Responsewith 18LW2400


Rev. 1


22/23PRELIMINARY

Unfiltered Magnitude Response, 2.83V/1m and relativePhase Response with 18NLW9400


Rev. 1


23/23


Impedance and Step Response

with 18NLW9400

18sound kit18 horn

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