DIY Audio Projects for the Maker Generation

Check out our DIY hi-fi projects below and make your own.

RD Physics BB1 and BB2

No internal batteries means this DIY build is good for the planet and your wallet. Power is supplied via a USB-C interface.

RD Physics CS-012

The CS-012 subwoofer is the first speaker from the Circular Sound line. The transformation into a circular economy of loudspeakers starts here.

Circulas Sound 012

RD Physics CX2

A coaxial loudspeaker with 3D printed enclosure means coherent radiation, minimal edge diffraction and stiff panels in a convenient one-piece print.

RD Physics CX1

A coaxial loudspeaker 3D printed from wood using the Desktop Metal Forust method.

DSP vs. Acoustic panels

Is it enought to do room correction with DSP or do you still need acoustic treatment? Check out our measurements!

Room modes

DSP for headphones

Every headphone can benefit from equalization using digital signal processing. See how you can improve the sound of your cans without spending a dime.

HD800S headphones

Headphones vs. Loudspeakers

We explain the pros and cons of using headphones instead of loudspeakers. It is found that headphones can be a superior choice when the listening environment is challenging.

RD Physics FR4

3D-printed passive satellite speaker for desktop use. The spherical enclosure is superior in terms of resonance, diffraction, baffle step and material use. TangBand W3-1878 drivers from:

3D printed Tang Band W3

RD Physics SW2

3D-printed passive subwoofer with a 5″ driver and 6.5″ passive resonator. The inner walls can be lined with sound deadening mat to increase mass and damping. TangBand W5-1138 drivers from:


RD Physics SW1

3D-printed active subwoofer with a passive resonator and plate amplifier. The walls can be filled with epoxy to increase mass and stiffness significantly. The enclosure is printed in two parts and bonded together. Dayton Audio DSA175 drivers from:

RD Physics FR3

3D-printed with steel-filled filament – Metal-filled filament and internal support add significant mass and rigidity. With Dayton Audio RS-100 drivers from:

RD Physics FR2

Full-range speaker with unique unidirectional carbon fiber skin.

RD Physics FR1

3D printed speaker with cellulose fiber – The cellulose fiber reinforced thermoplastic used is from renewable sources and can be recycled.