This bluetooth speaker was designed to be small and portable and will easily fit into a travel bag. It produces 10watts of total power output. The goal was to design and build something that looks modern and clean, is easy to use and small.
Despite it’s small size, it can go loud and produces a reasonably flat frequency response. It’s small size prevents it from being a ‘bass boombox’, but it can still deliver a balanced sound when playing a variety of music genres.
You can build your own by downloading the detailed 26 page plan that will show you how to go about it from here. The plans provide you with detailed step-by-step instructions and a list and links to tools, parts and materials that you will need.
Some of the PARTS used in this build:
- 2 x 2” Full Range Speaker Drivers 15W 4Ohm – https://goo.gl/L9iGKp , http://amzn.to/2mRCJ4r
- 1 x 60x90mm Passive Radiator – https://goo.gl/XmFJWA
- 1 x Bluetooth 4.0 CSR8645 Amplifier Board 5W+5W – https://goo.gl/ZeInfx
- 1 x MT3608 Step Up Power Booster Module DC-DC 2V-24V 2A – https://goo.gl/M4cVOB
- 1 x TP4056 Micro USB 1A 18650 Lithium Battery Charge Board (must use this with battery with build-in protection) – https://goo.gl/Wz34Dd
- 1 x Samsung 18650 Lithium Ion Rechargeable Battery (with protection) – https://goo.gl/VPPthf
- 1 x 5V 1A Micro USB 18650 Lithium Battery Charging Board (with over- and discharge protection) Use with battery with no build-in protection – https://goo.gl/xYEHFu
- 1 x Samsung 18650 Lithium Ion Rechargeable Battery (with no protection) – https://goo.gl/5rAA2P
- 1 x 10V 1500uF Electrolytic Capacitor – https://goo.gl/59lL7D , http://amzn.to/2nwvLVI
- 1 x Small SPDT On-Off Slide Switch – https://goo.gl/gRfuu5
- 500mm (1.5 feet) of speaker wire (18 AWG)
- 2 x colours of 500mm (1.5 feet) each of 1 to 1.3mm2 (16 to 18 AWG) power cable
- Weather Stripping – http://amzn.to/2g0Pgir
- Black speaker grill cloth – http://amzn.to/2g0K7a1 , https://goo.gl/o69VYT
- Polyfill – http://amzn.to/2gnQ8l1
- Felt Pads – http://amzn.to/2f5mStq
This clip below is a very basic sound test to give you some idea of what this small speaker sounds like. It is of course best listened to through headphones at a moderate volume level. It was recorded via a Zoom H1 microphone (http://amzn.to/2gcpLwE) at a listening distance of roughly 1 meter.