Make your own Bluetooth speaker out of PVC pipe - Liliputing
DIY 100W Bluetooth Tube Speaker with PVC Pipe || Ultra Bass Boombox - YouTube
Loneoceans Laboratories - Project Crimson, a 2.0 Loudspeaker System
How To Make Buetooth Speaker Using PVC Pipe Plastic | * Link buy materials - 3inch 40w 4ohm Full Range Speaker: https://goo.gl/FH2mk7 - 4 inch 120MM Bass Radiator Passive Speaker: https://goo.gl/VMu9q6 -
Research and DIY audio projects - AudioJudgement.com