Gyraf SSL/GSSL Bus Compressor PCB Set

This PCB kit is designed for building a DIY version of the classic SSL G-Series Bus Compressor, known for its ability to provide smooth, transparent compression and the distinctive “glue” effect on mixes. The layout follows the original circuit design, allowing users to replicate the performance of the well-regarded hardware unit.

•Main PCB and Control PCB – Sits neatly in a 1U 19″rackspace.

•Silkscreened component placements – Simplifies assembly and troubleshooting.

•Online build documentation – Guides available for sourcing components and completing the project.

This kit does not include components, knobs, chassis, or a power supply, giving builders the flexibility to select parts based on their preferences and budget. Some prior experience with electronics assembly and soldering is recommended.

Ideal for DIY enthusiasts and engineers interested in constructing a high-quality stereo bus compressor based on a proven design.

Please see the documentation tab for build docs.

Additional Resources:

•Gyraf Audio DIY SSL Compressor Page

•GroupDIY Forum

Explore these resources for more detailed instructions, schematics, and community support as you embark on building your own GSSL compressor.

*These are rev.7 PCBs

*Analog Classics does NOT provide build support for this project.