BUILD YOUR OWN BLUETOOTH SPEAKER
Under $15 in parts. No experience required. You'll wire it, build it, and own it. Then you'll understand why a JBL costs $80 and yours cost $12.
WHY BUILD INSTEAD OF BUY?
A $40 speaker from Amazon has about $6 in parts. The rest is brand, packaging, and the fact that nobody taught you to build one yourself. When you build it, you own the knowledge β not just the thing.
This isn't a craft project. This is a business lesson disguised as a speaker. Every unit you build costs you $12. Every unit you sell earns you $35β60. That gap between cost and price? That's called margin. Learn it early.
THE PARTS LIST
Don't cheap out on the battery. A knockoff 18650 cell is a fire risk. Spend the extra dollar and get a real one. The rest of the parts? Cheap is fine.
WHAT DO YOU BUILD IT IN?
Start with the coffee can. It's free, takes about 3 hours, and when someone asks what it's made of and you say "a Folgers can," they'll remember it. That's marketing you can't buy.
THE PVC PIPE EDITION
If you go with PVC, you're not just picking a housing β a sealed cylinder creates back pressure that improves bass. Bigger pipe = more air = more bass. We shipped three sizes in the original Pup Audio guide. They all still work.
- 1Γ PVC pipe, 6β10" length (3", 4", or 6" diameter β pick your build)
- 2Γ matching PVC end caps
- 1Γ PVC primer + cement kit (purple primer, clear cement)
- PVC pipe cutter or hacksaw β both work, cutter is cleaner
One end cap stays removable for service β friction-fit with foam tape, not cemented. The other end cap gets cemented. If you glue both caps shut and something fails, you're cutting your speaker open to fix it. Ask us how we know.
STEP BY STEP
This is the coffee can build. Same process for PVC. Adjust enclosure steps for other materials.
WIRING DIAGRAM
POWER CHAIN ----------- [18650 Battery] -> [TP4056] -> [Switch] -> [PAM8403] | (5V tap to BT module) AUDIO CHAIN ----------- [Phone (BT)] ~~~> [JDY-62 Module] --L/R--> [PAM8403] | +----------+----------+ | | [Speaker L] [Speaker R] // Red wire = positive, Black wire = negative. // Switch breaks the positive line only.
THREE VERSIONS TO BUILD
- Coffee can enclosure
- PAM8403 amp
- JDY-62 BT module
- Two 2" drivers
- Single 18650 cell
- Wood enclosure
- XY-P15W amp
- 3" drivers
- Passive bass radiator
- USB-C charging
- Custom enclosure
- NeoPixel LEDs
- Built-in power bank
- Custom branding
- Retail packaging
THE NUMBERS DON'T LIE
Where do you sell it? Start with people you know. Tell them you built it. Show them it works. Price it honestly. Don't underprice because you're nervous β that's the most common mistake. If it cost you $12 and 4 hours, it's worth $40. Own that.
TROUBLESHOOTING
RESOURCES
PRINGLES CAN VERSION
No PVC? No problem. Same circuit, different body. The Pringles-can build is faster, cheaper, and a perfect first build before you graduate to PVC.
OPEN THE PRINGLES CAN GUIDE βREADY TO TURN THIS INTO A REAL BUSINESS?
You've got the build. Now build the business around it. Pricing, costs, customers, a real plan β GoToddy walks you through it.
START YOUR BUSINESS PLAN πΎ