The Jackson Audio Hour Glass is a groundbreaking dual analog compressor pedal inspired by the legendary Ross compressor. Featuring two fully independent OTA-based circuits, the Hour Glass offers unparalleled tonal control, extended sustain, and transparent compression for guitarists. With selectable Fast, Medium, or Slow attack times and a three-way Treble boost switch for each channel, you can tailor the pedal’s response and high-frequency character to any playing style or guitar. Use one compressor for single coils, the other for humbuckers, or engage both simultaneously for endless sustain. Precision controls for Level, Sustain, and Blend on each circuit let you dial in everything from subtle, natural compression to bold, expressive squish. Built for reliability and creative freedom, the Hour Glass is the ultimate compressor for stage and studio.

Dual Analog Compressor Circuits: Two fully independent, legendary OTA-based compressor channels inspired by the iconic Ross compressor for classic warmth and modern flexibilitySelectable Attack Times: Choose Fast (100ms), Medium (400ms), or Slow (1600ms) attack for each channel to match your playing style and instrumentThree-Way Treble Switch: Shape your high-end with Flat, Medium, or High boost options on each compressor for precise tonal sculptingParallel Compression with Blend Control: Mix dry and compressed signals for enhanced sustain while maintaining natural playing dynamicsVersatile Guitar Setup: Set one compressor for single coil pickups, the other for humbuckers, or use both for massive, endless sustain—perfect for switching guitars or expanding your tonal palettePrecision Controls: Each channel features dedicated Level, Sustain, and Blend knobs for exact sound shapingStage-Ready Design: Compact footprint with top-mounted jacks, rugged construction, and 9–18V DC power compatibility (60mA draw)