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Old 19th February 2015, 07:18 PM   #1
diyAudio Member
Join Date: Feb 2014
Smile DIY Amp la 4440 based

Hi Guyz,

I am new to and I have seen other members showing their DIY stuff, so today I also have some thing to show to you guys.Its my LA 4440 ic based amplifier build. Please note that the amplifier board was not built by me, I purchased it from Lajpat rai market , NewDelhi. It costed me Rs.120 for dual IC configuration., i.e. the amp board has two 4440 Ics , each being in bridged/mono mode giving output of 19 WRms each. I cound not find a suitable box at home for the build so used my old Dell optiplex gx 150 cpu cabinet. I must say, this is one strong built pc cabinet.Below are the snapshots of the build. I tried to keep it as clean as possible.

The parts I used/purchased for the build are:

(2x4440) IC board-Rs. 120
0-12(240 v to 12 v) 3 Amps transformer-85 Rs.
3X potentiometers (50k) - 45 Rs.
Some cables and heat shrink tubing-50 Rs.
Power switch (240 v 4 amps)- Rs. 10
Speaker cable connector-Rs. 10
RCA input connetors 2X-20 Rs.

Total Time spent except purchasing- 5 hours
Attached Images
File Type: jpg IMG_20150219_235737.jpg (716.8 KB, 37 views)
File Type: jpg IMG_20150219_235749.jpg (791.8 KB, 31 views)
File Type: jpg IMG_20150219_235756.jpg (756.1 KB, 28 views)
File Type: jpg IMG_20150219_235809.jpg (405.3 KB, 26 views)
File Type: jpg IMG_20150219_235818.jpg (788.8 KB, 25 views)
File Type: jpg IMG_20150219_235828.jpg (453.9 KB, 15 views)
File Type: jpg IMG_20150220_000047.jpg (403.0 KB, 15 views)
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