BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3...

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BK -12m for Fostex FE126En Designed by planet10-hifi team, drawn by dld, 16-sept-2011 © 2011 Madisound Speaker Components Back loaded horn for the Fostex FE126En in the style of the classic BK16, BK20. 1] 2] 3] 4] 5] 6-10] 11-12] 3/4” plans 3/4” details 5/8” plans 5/8” details damping plan 3/4” cut plans 5/8” cut plans Drawings:

Transcript of BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3...

Page 1: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

BK-12m for Fostex FE126En

Designed by planet10-hifi team, drawn by dld, 16-sept-2011© 2011 Madisound Speaker Components

Back loaded horn for the Fostex FE126En in the style of the classic BK16, BK20.

1]2]3]4]5]

6-10]11-12]

3/4” plans3/4” details5/8” plans5/8” detailsdamping plan3/4” cut plans5/8” cut plans

Drawings:

Page 2: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

32[812.8]

15[381]

7 1/2[190.5]

4 1/2[114.1]

4 1/2[114.1]

4 1/2[114.3]

13 1/2[342.9]

5[127]

7 1/2[190.5]

3[76.2]

2[50.4]

1[25.4]

7[177.8]

3[76.2]

3[76.2]

Notes1/ drawn with 3/4” material2/ driver chamber damped with 1.5 oz (42 g) evenly distributed Acousta-Stuf

6[152.4]

56.3°

12.1°

45°

3 1/2[88.9]

i1

i2

i3

i4 i4

i5

17 3/4[450.9] 15 1/4

[387.4]

13 1/2[342.9]

14 1/4[362]

BK-12m Back Loaded Hornfor Fostex FE126EnPlans 1v0 3/4”16-sept-11 | design p10-hifi | drawing dld© 2010, 2011 Madisound Speaker Components

15

32

Page 3: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

12°

45°45°

12°

12.0°

33.7°56.3°

4 1/4[107.8]

12 1/8[309.2]

6 1/2[165.1]

9[229]

i2

i3

i4

i5

Notes:1/ for 3/4” material2/ all pieces 6” “deep”

Simulated low frequency response

BK-12m Back Loaded Hornfor Fostex FE126EnAngled parts detail 3/4”09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 4: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

4 1/2

31 5/8

14 1/27 1/4

4 1/2 4 1/2

13 1/2

5

7 1/2

3

2

1

7

3

3

Notes1/ drawn with 5/8” material2/ driver chamber damped with 1.5 oz (42 g) evenly distributed Acousta-Stuf3/ additional stuffing to reduce bass up around the deflectors

6

56.3°

12°

45°

3 1/2

i1

i2

i3

i4 i4

i5

17 1/215 1/4

13 1/4

14

BK-12m Back Loaded Hornfor Fostex FE126EnPlans 1v0 5/8”09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

13 7/8

31 5/8

Page 5: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

45°45°

12.0°

12.0°

33.7°56.3°

4 1/4[107.8]

12 5/32[308.5]

6 1/4[158.7]

9[229]

i2

i3

i4

i5

Notes:1/ for 3/4” material2/ all pieces 6” “deep”

Simulated low frequency response

BK-12m Back Loaded Hornfor Fostex FE126EnAngled parts detail 5/8”09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

12°

Page 6: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

BK-12m Back Loaded Hornfor Fostex FE126Endamping09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Driv

er C

ham

ber

driver chamber damped with 1.5oz (42 g) evenly distributed

Acousta-Stuf

additional stuffing to reducebass up around the deflectors

Page 7: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

bottom

internal 2

top

int 4internal 5 internal 3

backbaffle

internal 1

side

6

6

6

15

32

15 1/46 23/3212 3/164 1/49

14 1/4 13 1/2

17 3/4 32

BK-12m Back Loaded Hornfor Fostex FE126Enpanel extents 3/4”09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 8: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

baffl

e

bott

om

back

inte

rnal

1

inte

rnal

2to

p

inte

rnal

3in

t 4

inte

rnal

5

int 4

int 4

int 4

inte

rnal

5

inte

rnal

3

back

inte

rnal

2

bott

om

baffl

e

inte

rnal

1

top

Notes:1/ for 3/4” material2/ drawn with 5mm kerf & 8mm edge trim3/ 2 sides out of a 2nd sheet

side

side

side

side

BK-12m Back Loaded Hornfor Fostex FE126En5’x5’ 3/4” suggested cut09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 9: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

baffl

e

bott

om

back

inte

rnal

1

inte

rnal

2

top

inte

rnal

3

inte

rnal

5

inte

rnal

5

inte

rnal

3

back

inte

rnal

2

bott

om

baffl

e

inte

rnal

1

top

Notes:1/ for 3/4” material2/ drawn with 5mm kerf & 8mm edge trim (kerf a touch less on le+ side of i4 pieces)3/ 2 sides out of a 2nd sheet

side

side

side

side

int 4

int 4

int 4

int 4

BK-12m Back Loaded Hornfor Fostex FE126En5’x5’ 3/4” alternate cut09-sept-11| design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 10: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

Notes:1/ for 3/4” material2/ drawn with 5mm kerf & 8mm edge trim

baffl

ebo

ttom

back

inte

rnal

1

inte

rnal

2

top

inte

rnal

3in

t 4

inte

rnal

5

int 4

int 4

int 4

inte

rnal

5

inte

rnal

3

back

inte

rnal

2

bott

ombaffl

e

inte

rnal

1

top

side

side

side

side

BK-12m Back Loaded Hornfor Fostex FE126En4’x8’ 3/4” suggested cut09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 11: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

baffl

ebo

ttom

back

inte

rnal

1

inte

rnal

2

top

inte

rnal

3

int 4

inte

rnal

5

int 4

int 4

int 4

inte

rnal

5

inte

rnal

3

back

inte

rnal

2bo

ttom

baffl

e

inte

rnal

1

top

side

side

side

side

Notes:1/ for 3/4” material2/ drawn with 5mm kerf & 8mm edge trim

BK-12m Back Loaded Hornfor Fostex FE126En4’x8’ 3/4” alternative cut09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 12: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

bottom

internal 2

top

int 4internal 5 internal 3

backbaffle

internal 1

side

6

6

6

14 1/2

31 5/8

15 1/46 1/412 5/324 1/49

13 7/8 13 1/4

17 1/2 31 5/8

BK-12m Back Loaded Hornfor Fostex FE126Enpanel extents 5/8”09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

Page 13: BK-12m for Fostex FE126Enmadisound.com/pdf/bk12m-cab.pdf · ba ffl e om k ernal 1 ernal 2 p ernal 3 int 4 ernal 5 int 4 int 4 int 4 ernal 5 ernal 3 k ernal 2 om ba ffl e ernal 1 p

Notes:1/ for 5/8“ material2/ drawn with 5mm kerf & 8mm edge trim

BK-12m Back Loaded Hornfor Fostex FE126En4’x8’ 5/8” suggested cut 09-sept-11 | design p10-hifi | drawing dld© 2011 Madisound Speaker Components

bott

om

inte

rnal

2

top

int 4

inte

rnal

5

inte

rnal

3

back

baffl

e

inte

rnal

1

side

side

side

side

back

bott

om

baffl

eto

pin

tern

al 1

int 4

inte

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5

inte

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3in

tern

al 3

6 3/16

inte

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2

int 4

inte

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3

int 4

with some conservation ofkerf & trim this strip becomes

wide enough for internalpieces


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