KMA Machines ABY Passive ABY Pedal

The KMA Machines ABY is a compact, reliable, and noise-free ABY switcher pedal, built to give you total control over your signal path. Whether you need to send a single input to two outputs or combine two inputs into one output, the ABY ensures seamless and silent switching. With its passive audio path and active relay-based soft switching, your signal remains pure and transparent while avoiding the pops, clicks, and mechanical noise that often plague traditional ABY boxes.

Handmade in Berlin, the ABY is built for durability and designed for effortless integration into any setup. With top-mounted jacks, rugged construction, and distinct LED indicators showing your signal path at a glance, it’s the perfect tool for guitarists, bassists, and anyone looking to expand their tonal routing possibilities.

Main Features

• Passive ABY Pedal with Active Switching – transparent audio integrity
• 1-to-2 or 2-to-1 Operation – send an input to two outputs, or combine two inputs into one output
• True Bypass Design – preserves your natural tone
• Silent Relay-Based Soft Switching – eliminates mechanical noise and pops
• Omnidirectional Functionality – works both ways, flexible for any setup
• LED Indicators:
  • Red = Output A
  • Yellow = Output B
  • Blue = A & B combined
• Compact, Rugged Enclosure – built for years of reliable use
• Top-Mounted Jacks – pedalboard friendly
• Handmade in Berlin, Germany
• Power: 9V DC (centre -, 2.1 mm, >40 mA, PSU not included)

Why Choose the ABY?

• Silent Switching: Advanced relay technology avoids unwanted pops and clicks.
• Maximum Flexibility: Route signals to different amps, inputs, or effects chains.
• No Tone Loss: Passive audio design ensures complete transparency.
• Quick Visual Feedback: LED colours make it easy to see your routing at a glance.
• Pedalboard-Friendly: Compact and lightweight, with top-mounted jacks for easy placement.

Specifications

• Type: Passive ABY Switcher with Active Relay Switching
• Operation: 1 input > 2 outputs / 2 inputs > 1 output
• Indicators: Multi-coloured LEDs (Red, Yellow, Blue)
• Bypass: True Bypass with silent soft relay switching
• Power: 9V DC, >40mA current draw (PSU not included)
• Enclosure: Compact, rugged, top-mounted jacks
• Build: Handmade in Berlin, Germany

The KMA Machines ABY – simple, reliable, and noise-free signal switching. Route, combine, and control your sound with confidence.