Diamond Pedals is a guitar-effects maker. The current GPAS selection includes Diamond Comp/EQ Optical Compressor and Tilt EQ, Diamond Memory Lane STM32 Digital Bucket-Brigade-Style Delay and Diamond Phase 6-Stage JFET Phaser and covers compressor pedals, delay pedals and phaser pedals. The model name matters because each effect has a different job in a rig.

For these products, compare effect function, control range, switching, bypass or routing, power requirements and the intended guitar or bass role. The product page is the authority for exact circuitry, connections, condition and included items.