The KMA Machines STEREO ABY is a compact, reliable, and noise-free stereo ABY switcher pedal, designed to give you total control over your stereo rig. Whether you need to send a stereo input to two destinations, or combine two stereo inputs into one output, the STEREO ABY makes switching effortless, silent, and transparent.

With its passive audio path and active relay-based soft switching, your tone stays completely untouched, free from clicks, pops, or coloration. Add in top-mounted jacks, rugged build quality, and distinct multi-colour LED indicators, and the STEREO ABY becomes the perfect utility pedal for guitarists, bassists, and synth players who demand reliability and clean signal management in stereo.

Main Features

• Passive Stereo ABY Pedal with Active Switching – transparent, noise-free operation
• 1-to-2 or 2-to-1 Stereo Routing – send a stereo input to two outputs, or combine two inputs into one output
• True Bypass Design – preserves natural tone integrity
• Silent Relay-Based Soft Switching – eliminates mechanical noise and pops
• Omnidirectional Functionality – works both ways, in full stereo
• LED Indicators:
  • Red = A
  • Yellow = B
  • Blue = A & B combined
• Durable Compact Enclosure – road-ready build for years of use
• Top-Mounted Jacks – saves space on your pedalboard
• Handmade in Berlin, Germany
• Power: 9V DC (centre -, 2.1 mm, >40 mA, PSU not included)

Why Choose the STEREO ABY?

• Perfect for Stereo Rigs: Route stereo pedals or synths to multiple destinations with ease.
• No Tone Loss: Passive signal path ensures your sound stays pure and unaffected.
• Silent Switching: Relay-based soft switches eliminate unwanted pops and clicks.
• Quick Visual Feedback: Multi-colour LEDs make it easy to see your signal path instantly.
• Pedalboard-Friendly: Compact, rugged, and powered via standard 9V DC.

Specifications

• Type: Passive Stereo ABY Switcher with Active Relay Switching
• Operation: Stereo 1-in > 2-out / Stereo 2-in > 1-out
• 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, with top-mounted jacks
• Build: Handmade in Berlin, Germany

The KMA Machines STEREO ABY – the perfect combination of reliability, transparency, and stereo flexibility. Take control of your signal with confidence.

Outside the UK?

Please note that shipping costs outside the UK are very approximate and can vary radically. Please contact us with your Country and Post/Zip Code for an accurate quote. Many thanks. Please also note if you are outside the UK we will not charge you tax on your purchase but you may be liable for import duty in your country.

Please also note that all our stock is sold for the UK market. If you are buying from outside the UK, please check that it is suitable for use in your country before purchase.