Click the video below to hear unedited audio of how the Resonator amplifies the music. More importantly, it changes its "tinny" sound by reflecting back the bass ("base").
It's surprisingly effective. Your ears are better than my camera's microphone, so you'll notice a bigger difference when you hear it live.
It's surprisingly effective. Your ears are better than my camera's microphone, so you'll notice a bigger difference when you hear it live.
Here are examples of commercially-sold equivalents. As you can see, they are unpowered too.
Start by making your cutout where the phone will slip into the can. Lock a can in the Aluminator with a pushpin. Now you'll create vertical parallel slots toward the back of the can. They should be three panels apart (or four, if your phone is wide) and have a length approximately twice the phone's thickness.
After making those slots, you'll make two slots for the straw to pass through. Use the middle panel on the opposite side of the middle of your three-panel opening and cut two slots/holes on either side of it (the "straw holes").
Then remove the top. Now cut out the opening for the phone with scissors. Now pass the straw through the straw-holes.
I find that my phone balances nicely in the can. If your phone is larger and heavier, and so would tend to tip over backwards, then add rear stabilizers.
You'll do this by making two small slits/holes for a toothpick to pass through so that it sticks straight out the back of the can. Place two of these toothpick holders in the can. Position them perpendicular to an imaginary line connecting the straw-holes and spaced just far apart so that they touch the ground without having the weight of the phone on it.