Tight Box Pedal Kit

This kit includes all of the parts needed to build the GuitarPCB Tight Box project. Based on a Plexi-style amp that is designed with more flexibility. Classic Plexi and JCM800 tones are at your command. Add a 3-band EQ for versatile tone shaping as well as a Presence control. Finally, there is a switch to adjust Gain structure. This is a harmonically rich overdrive that allows you to summon all your favorite Marshall style tones. 


This kit comes with a 125B size enclosure, PCB-mounted potentiometers and Davies 1510-style knobs. Please note that this kit does not include a battery snap, and because of the large size of the PCB, a battery will not fit into the enclosure. Please plan to use a BOSS-compatible 9V negative-tip power supply with this build. 


Please see what is provided in a kit? in our FAQ for more details of what is included and what you will need to provide to complete the project.


Plexi™ and JCM800™ are trademarks of Marshall Amplification®. SMALLBOX™ is a trademark of Friedman Amplification®. Pedal Parts and Kits is not associated with and makes no claims to these trademarks. See our FAQ for more details.

Tight Box Pedal Kit


  • Available
  • Ships within 3-5 days1

Check out this demo by Barry at GuitarPCB.com...

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