FE163En-S Applications
A back loaded horn type enclosure which fully maximizes the FE163En-S's over-damping characteristic has been designed. In order to
flatten the low frequency response and to realize a massive but yet speedy low frequency reproduction, the horn opening was brought
closer to the speaker unit (CW horn composition, fc = 21 Hz, horn length: 215 cm).
Using a T96A-EX2 as a super tweeter is recommended. Choose a capacitor value from 0.33 to 0.68 uF depending on your preferences.
The connection should be reversed phase. You can also choose either the baffle design 1 or 2. FE163En-S is only mounted on the baffle
board in the design 1. T96A-EX2 should be placed on top of the top board and 4 mm forward from the front baffle. In the design 2,
both FE163En-S and T96A-EX are mounted on the baffle board. You can place the baffle board up-side-down to adjust the tweeter
height depending on your listening position. For the network of baffle 2, C: 0.33 uF and L: 0.18 mH (-12 dB/oct) with reversed phase
connection are recommended.
Assemble the enclosure by following the assembly sequence described in this manual. Tips are as follow. Glue the top panel, bottom
and rear panel section to one side of the side panel. Next, glue the block D and then the other side of side panel. This allows a more
precise as well as easier assembly. Remember that a reinforcing board No.2 is used only when the baffle design 1 is selected. As an
acoustic material, the one made of wool should be used in the air chamber and the one made of felt should be put on the bottom plate
No. 4.
Board cutting drawing (for 2 pcs.)
4 pcs.
2 pcs.
Moderate amount
Material
Lime tree plywood, 910 x 1,820 mm, t: 15 mm. . . .
Terminal: T150B. . . . . . . . . . . . . . . . . . . . . . . . . . .
Acoustic material: Felt, wool. . . . . . . . . . . . . . . . . .
Board dimensions chart (for 1 pc.)
Frequency response
: FE163En-S+T96A-EX2 (C=0.33 µF, reversed phase connection)
: FE163En-S only (Baffle 1 is used.)
Baffle hole drilling size
Baffle 1
Baffle 2
Enclosure assembling drawing
: FE163En-S+T96A-EX2 (C=0.33µF, L=0.18mH, reversed phase connection)
(Baffle 2 is used. FE163En-S placed on top of T96A-EX2)
(Cut 2 pcs.)
Enclosure designed value
Air chamber
V
B
=6.0 liter
Throat area
S0=96 cm
2
Opening area
S=536 cm
2
Horn length
L=215 cm
f
c
: 21 Hz (m=0.008)
Baffle 1
Baffle 2
A: (10+25+25+8)+(1+2+9+3)
+(1+9+3)
B: (11+12+26+26)+(7+27+27)
C: (5+19)+(4+28+28)
D: (13+14)+(15+16+17+18)
+(20+21+22+23+24)
E: 6+A+C+B
F: E+D
G: F+6
Impedance characteristic
Impedance characteristic
Baffle 1/2
Baffle reinforce
Top board
Bottom board
Lower front
Side board
Back board
Back cavity
Bottom cavity
Load 1
Load 2
Load 3
Load 4
Load 5
Load 6
Load 7
Load 8
Load 9
Load 10
Load 11
Load 12
Load 13
Load 14
Load 15
Reinforce 1
Reinforce 2
Reinforce 3
Reinforce 4
Description
Qty.
Used when baffle 1 is selected.
2-ø14 hole
220 x 335
(180) x 35
220 x 415
220 x 415
220 x 356
445 x 950
220 x 950
220 x 252
220 x 90
220 x 270
220 x 239
220 x 111
220 x 291
220 x 144
220 x 142
220 x 242
220 x 401
220 x 80
220 x 300
220 x 126
220 x 95
220 x 72
220 x 53
220 x 37
53 x 270
35 x 224
35 x 680
35 x 415
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
445
