High Power Amp Essentials
www.kitronik.co.uk/2143
Designing the Enclosure
When you design the enclosure, you will need to consider:
The size of the PCB (below left, height including components = 65mm).
How to mount the speaker (below right).
How to allow the audio cable out of the box.
Are you making the amplifier for a particular MP3 player, if so should the player go in the box?
These technical drawings of the amplifier PCB and speaker should help you to plan this.
All dimensions in mm
Mounting the PCB to the
enclosure
The drawing (below) shows how a hex spacer
can be used with two bolts to fix the PCB to
the enclosure.
Your PCB has four mounting holes designed to
take M3 bolts
77.5
59
4 x 3.3mm diameter mounting holes
4
4
Sp
ea
ke
r
o
u
tp
u
ts
A
u
d
io
in
Po
w
er
in
LED
29
54
14.5
6.5
4
4
29
54
14.5
6.5
4
77.5
13.5
21
6.5
LED shown mounted front facing
with 90° bent leads
