Pro Audio DIY | I was offering this german summing mixer here a couple of weeks ago just before refurbishing it | Facebook
![Music Hackspace on Twitter: "DIY passive audio mixer built today at the workshop led by @CasperSoundman http://t.co/uXtt9e7Fo3" / Twitter Music Hackspace on Twitter: "DIY passive audio mixer built today at the workshop led by @CasperSoundman http://t.co/uXtt9e7Fo3" / Twitter](https://pbs.twimg.com/media/BTqsVUAIgAAGvMO.jpg)
Music Hackspace on Twitter: "DIY passive audio mixer built today at the workshop led by @CasperSoundman http://t.co/uXtt9e7Fo3" / Twitter
![Amazon.com: Uxsiya Sound Selector Switcher, DIY Amplifier Stereo Mixer Volume Adjustment Aluminum Alloy Shell 3.5mm Jack for Headphone for Speaker : Musical Instruments Amazon.com: Uxsiya Sound Selector Switcher, DIY Amplifier Stereo Mixer Volume Adjustment Aluminum Alloy Shell 3.5mm Jack for Headphone for Speaker : Musical Instruments](https://m.media-amazon.com/images/I/61lsUSXxZ-L.jpg)