Everything about the Berlin Boombox | Berlin Boombox
Berlin Boombox Bluetooth Speaker, new Version 4

Version 4

The latest update of our unique carboard speaker delivers powerful bluetooth sound. Inspired by the old-school style of the 1980s and flat packed as a DIY kit.

Berlin Boombox DIY kit with parts


The Berlin Boombox comes as a DIY kit consisting of a die-cut cardboard structure and all electronic parts.
Assembly is easy and takes only a couple of minutes. You don't need any geeky knowledge, no glue or tools to build the Berlin Boombox.

Boombox kit parts

High Quality

Our products are designed with a dedication to detail and are produced locally in Berlin.

All audio components are German engineered. The sturdy cardboard construction is optimised for best possible sound.

The Berlin Boombox features a strong carrying handle and a beautiful aluminum knob. 



Less Garbage

The Berlin Boombox is made of recycled cardboard* and can itself be recycled. It only contains a small portion of plastic and electronic waste. We also avoid unnecessary plastic packaging materials.

*Brown colorway: 100% recycled cardboard. Other colors: partially recycled cardboard.


The lightweight and flat packaging means less energy is used for shipping. Our class D amplifier is very energy-efficent.

Supporting local Businesses

All design, screen-printing and production of the cardboard case is done locally in Berlin. Packaging and logistics are done by a sheltered workshop..

Modular Concept

The modular kit concept of the Berlin Boombox allows for easy repair. 

The Berlin Boombox is the most eco-friendly powered stereo speaker on the market.

Powerful Sound

German engineered audio electronics and powerful speakers.


Thanks to the use of recycled cardboard and flat shipping, the Berlin Boombox is the most eco-friendly powered stereo speaker on the market.

Do-It-Yourself Kit

Build your own boombox! Assembling the DIY kit is easy as 1-2-3.

Our Story

Music & Design

Axel Pfaender is an illustrator, designer and DJ. In 2012 he decided to combine his two passions – music and design and created the Berlin Boombox. 


In 2012 Axel launched a Kickstarter project to get the necessary funds to bring the Berlin Boombox to the market. Even more valuable than the money raised was the positive feedback from his backers, retailer inquires and press coverage that followed. A real highlight was the visit by Kickstarter founder Perry Chen who personally checked out the first prototype.

Bringing Crowd-Funding to Germany

The Berlin Boombox was one of the first German kickstarter projects. Axel Pfaender has held several talks on the topic and has helped other crowd-funding projects as an advisor.

What's next?

After the original black and white model we have been continuously developing new colorways and designs. The Berlin Boombox is available at retailers worldwide - find a store near you with our Store Finder.

diagram of parts

Tech Specs

Dimensions Width: 355 mm (14 inches)
Height: 250 mm (9.8 inches)
Depth: 120 mm (4.3 inches)
Weight 850 g
Amplifier Stereo amplifier, Class D SMD, 2x5 watts, 92% efficiency
Speakers 2 MIVOC PRO 75mm/3” fullrange
4 Ohm, 60 – 20.000 Hz
Power 3 AA batteries, 5V micro-USB 
Connection 3.5mm audio jack (headphone jack), optional Bluetooth adapter available.


Corrugated board type E, double layer, Thickness: 3mm.

Sustainability Recycled cardboard.

© 2012-2024 Studio Axel Pfaender