Make a 4.75 Inch Passive Radiator Speaker Dirt Cheap From Scratch (pair)
by NeverI in Circuits > Speakers
4556 Views, 9 Favorites, 0 Comments
Make a 4.75 Inch Passive Radiator Speaker Dirt Cheap From Scratch (pair)
![temp_1032987855.jpg](/proxy/?url=https://content.instructables.com/FY1/VXLA/IW6POAXI/FY1VXLAIW6POAXI.jpg&filename=temp_1032987855.jpg)
![temp_-813088994.jpg](/proxy/?url=https://content.instructables.com/F9G/K6W6/IW6PQB8P/F9GK6W6IW6PQB8P.jpg&filename=temp_-813088994.jpg)
I recently looked at passive radiator speakers and realized that they are expensive, so I came across some parts and I'll show you how to build one yourself
Materials
![temp_200232324.jpg](/proxy/?url=https://content.instructables.com/FBJ/LIJ6/IW6POAYZ/FBJLIJ6IW6POAYZ.jpg&filename=temp_200232324.jpg)
![temp_-863578801.jpg](/proxy/?url=https://content.instructables.com/FBX/V21F/IW6POAZT/FBXV21FIW6POAZT.jpg&filename=temp_-863578801.jpg)
DVD (to trace the main speaker part)
cardboard
silicon
cloth
something to hold the speaker in place (I used the top of a camera dome
scissors
marking tool
drill with bit (optional)
cardboard
silicon
cloth
something to hold the speaker in place (I used the top of a camera dome
scissors
marking tool
drill with bit (optional)
Mark the Main Part
![temp_323132100.jpg](/proxy/?url=https://content.instructables.com/FO0/NYVE/IW6POB1O/FO0NYVEIW6POB1O.jpg&filename=temp_323132100.jpg)
take the disk and outline two circles in your cardboard, make sure that your cardboard is large enough for two DVD's
Cut It Out
![temp_1004145168.jpg](/proxy/?url=https://content.instructables.com/FPT/CXOF/IW6POB38/FPTCXOFIW6POB38.jpg&filename=temp_1004145168.jpg)
cut the markings out with scissors, make it very neat and tidy
Make Adjustments
![temp_883416291.jpg](/proxy/?url=https://content.instructables.com/FRV/Z8AT/IW6POB4R/FRVZ8ATIW6POB4R.jpg&filename=temp_883416291.jpg)
![temp_1039628112.jpg](/proxy/?url=https://content.instructables.com/FIY/R1YM/IW6POB6J/FIYR1YMIW6POB6J.jpg&filename=temp_1039628112.jpg)
make any and all adjustments according to the piece that holds your cardboard
Cover the Cardboard in Silicon
![temp_1237402621.jpg](/proxy/?url=https://content.instructables.com/FMK/ACUG/IW6POB7H/FMKACUGIW6POB7H.jpg&filename=temp_1237402621.jpg)
cover the cardboard in silicon to hopefully give it a better sound and better look
Cut Out the Surrounds on the Cloth and Glue Them to the Cardboard Pieces With Silicon
![temp_1456109039.jpg](/proxy/?url=https://content.instructables.com/F06/LPUS/IW6POB98/F06LPUSIW6POB98.jpg&filename=temp_1456109039.jpg)
![temp_-1379926919.jpg](/proxy/?url=https://content.instructables.com/FJP/Q641/IW6POBAT/FJPQ641IW6POBAT.jpg&filename=temp_-1379926919.jpg)
self explanitory
Putting the Speaker Part on the Speaker Holder
![temp_608105229.jpg](/proxy/?url=https://content.instructables.com/F9S/SAPP/IW6POBBW/F9SSAPPIW6POBBW.jpg&filename=temp_608105229.jpg)
![temp_-1243624181.jpg](/proxy/?url=https://content.instructables.com/F6C/B3ZG/IW6POBDW/F6CB3ZGIW6POBDW.jpg&filename=temp_-1243624181.jpg)
once your silicon has dried, glue the entire speaker part to the speaker holder with silicon and let that dry
Waterproof the Speaker
![temp_1692975375.jpg](/proxy/?url=https://content.instructables.com/F8M/VQR4/IW6POBEP/F8MVQR4IW6POBEP.jpg&filename=temp_1692975375.jpg)
give the surrounds a good helping of silicon and completely cover it in silicon
Let It Dry
![temp_-227706526.jpg](/proxy/?url=https://content.instructables.com/FO7/C0H2/IW6POBFO/FO7C0H2IW6POBFO.jpg&filename=temp_-227706526.jpg)
let it dry
Trim It
![temp_-117806702.jpg](/proxy/?url=https://content.instructables.com/FJU/OJFW/IW6POBGI/FJUOJFWIW6POBGI.jpg&filename=temp_-117806702.jpg)
trim the excess cloth off and now you have a professional looking pair of passive radiator speakers cheap!