Happy Nerding FX Aid XL

32-effect stereo Swiss army knife for Eurorack

6 HP Eurorack module

FX AID XL is a 6HP stereo multi-effects processor for Eurorack offering 32 factory effects across 4 banks covering modulation, reverb, delay, distortion, filtering, and granular processing. It combines analog dry/wet mixing with full CV modulation over all three effect parameters plus a sample rate reducer input, making it a compact but deeply controllable effects hub. The module can be reflashed with custom effects, giving it lasting musical utility across ambient, industrial, experimental, and electronic genres.

Features

• 32 unique audio effects in 4 banks of 8 effects each
• High quality stereo signal path with separate left and right inputs and outputs
• Three effect parameter knobs (P1, P2, P3) each with dedicated CV input
• Analog Dry/Wet control with dedicated CV input
• Reverse CV operation on Dry/Wet: positive CV crossfades toward Dry, negative CV crossfades toward Wet
• Sample Rate Reducer (SRR) CV input for additional timbral control
• Four user storable presets storing selected program and all three parameter positions
• CV assign settings, presets, and last used effect are saved across power cycles
• Reflashable firmware via 40-second WAV file played into SRR input
• Compatible with FX AID standalone editor application for loading custom and free Spin programs
• 8 LEDs for bank/program indication and 4 LEDs for preset indication
• Compact 6HP width

Controls & Jacks (17)

• Out R— Right audio output
• P1— Effect parameter 1 control
• Dry/Wet— Analog dry/wet mix control (not stored in presets)
• P1 CV— CV control for parameter 1
• P2— Effect parameter 2 control
• P2 CV— CV control for parameter 2
• In L— Left audio input
• In R— Right audio input
• Dry/Wet CV— CV control for dry/wet mix (positive CV crossfades wet to dry, negative CV crossfades dry to wet)
• P3 CV— CV control for parameter 3
• SRR— Sample Rate Reducer CV input; also used for firmware updates via 40 sec wav file at line level
• Out L— Left audio output
• P3— Effect parameter 3 control
• Bank/Program LED 1— Bank/program indicator LED 1
• Left— Navigate bank/program selection left
• Right— Navigate bank/program selection right; press for 4 sec to enter preset storage mode
• Bank/Program LED 2— Bank/program indicator LED 2

How-To Guides

• Saving a Preset
• Recalling a Preset
• Reflashing with New Effects
• Lush Shimmer Reverb Pad
• Vintage Tape Echo
• Granular Freeze Texture
• Lo-Fi Bit Crushed Drums
• Modulated Ping Pong Delay
• Reverse Reverb Swell
• CV-Animated Phaser Sweep
• Ring Modulator Metallic Clang
• Envelope-Driven Auto-Wah Bass

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