happy-nerding-isolator

Happy Nerding Isolator

Clean galvanic isolation from modular to balanced outputs

4 HP Eurorack module

The Happy Nerding Isolator is a 4HP Eurorack module that provides galvanic isolation between Eurorack-level inputs and balanced 1/4-inch TRS outputs, eliminating ground loop hum when interfacing a modular system with external audio equipment. It features per-channel ground lift switches for flexible grounding options and a single level knob controlling both output channels, making it an essential utility for clean studio and live performance connections.

Features

  • Galvanic isolation between Eurorack inputs and 1/4-inch TRS balanced outputs
  • Prevents ground loop issues between modular system and external equipment
  • Per-channel ground lift switches for full or partial ground lift
  • Mono to stereo normalling: Left Input feeds both outputs when Right Input is unpatched
  • Single Level knob controls output level for both Left and Right channels simultaneously
  • Balanced 1/4-inch TRS outputs for connection to mixers, audio interfaces, and PA systems
  • Compact 4HP width

Controls & Jacks (7)

  • Phones
  • Level
  • L In
  • R In
  • Headphones Out
  • L Out
  • R Out

How-To Guides

  • Eurorack Stereo to Mixer
  • Mono Modular Feed to PA System
  • Live Performance Ground Loop Elimination
  • Clean Modular Recording into Audio Interface
  • Single Voice Stereo Spread
  • Eurorack into Guitar Amplifier
  • Isolated Feedback Loop Send
  • Modular to Balanced Headphone Amplifier

Explore the interactive Isolator panel on BleepDex — tap any control to learn what it does.

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