DIY. PCB and Panel only.

Want to give your SMD soldering a refresher or are you new to surface mount soldering? This is one of our simplest SMD builds with only seven surface mount components.

This is not the most commonly found attenuator due to its buffered channels. We had a request to design this active attenuator for a customer who had a specific need to interface various modules. It is here if you need it and it really is a quick and easy build despite having surface mount parts including a 14 pin SOIC package. So if you are new to surface mount, it is a great way to get started.

This video is a great introduction to SMD hand soldering.

• 4 independent buffered channels;
• Use what you have! We recommend 10k audio pots and 100R resistors, but you can get by with selections from your parts bin;
• SMD parts to save your parts cost;
• Through hole electrolytic capacitors;
• Use TL034 to improve precision and reduce power or use TL074 to reduce costs further;
• 6HP Eurorack with our panel.

If you would like some practice with SMD soldering, we recommend This SMD Beginner's kit and Tutorial or A More Advanced Kit and Tutorial to learn the techniques and sharpen your skills.

This is a low component count project so you can have high quality active multiples in your rack with minimum expense, especially with the low cost SMD parts.

Build it yourself - This is a set of one high quality PCB and front panel ONLY for users who want to purchase their own components and build their own module. Some product photos above show COMPLETED build.

This module will fit perfectly into a 6HP Eurorack space.

Comprehensive manuals, parts lists and component shopping carts are provided in the documentation link for building, testing and using the module.