HardLabs

Audio attenuator

vrillusions·audio-attenuator-pcb·attenuator circuit/attenuator circuit.kicad_pcb

Audio attenuator PCB layout, top view — open source board by vrillusions

About the Audio attenuator PCB

Audio attenuator is an open source PCB design by vrillusions, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 46.2 × 14.7 mm, with 6 components from 4 distinct parts.

By type, the board carries 4 resistors and 2 connectors.

It belongs with the audio designs in this gallery.

From the project

PCB design for a single value audio attenuation device (aka it reduces volume)

Primarily was interested in designing a custom PCB for the first time. This is a pretty basic circuit that attenuates or reduces the volume. Reason for a static value vs one of those inline volume control knobs is the cheap ones tend to introduce static in to audio when adjusting the dial. Also stereo separation can sometimes start to offset where one side is louder than the other.

Audio attenuator bill of materials (BOM)

6 components, 4 distinct parts.

QtyPartRefs
1
INPUT
J1
1
OUTPUT
J2
2
1k
R1, R2
2
100
R3, R4

Audio attenuator design files

The KiCad project lives in the vrillusions/audio-attenuator-pcb repository on GitHub; these links point at the commit this page was built from.

Audio attenuator: common questions

How big is the Audio attenuator PCB?

The Audio attenuator measures 46.2 × 14.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Audio attenuator?

6 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the Audio attenuator design files?

From the vrillusions/audio-attenuator-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Audio attenuator design in my own project?

Yes, under the terms of its CC0-1.0 license, which vrillusions chose for the repository.

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