ALM Busy Circuits S.B.G Pro

ALM’s S.B.G-PRO is a professional-grade interface module that bridges the gap between your Eurorack system and the rest of your studio. Building on the original "Stompbox Gateway," the PRO version expands beyond pedals to support rack effects, 500 Series processors, mixers, and any other balanced or unbalanced gear.

Featuring full-size 6.35mm Neutrik jacks, the S.B.G-PRO handles mono and stereo signals with ease. Outgoing Eurorack-level signals are attenuated to line level, while return signals are amplified by up to 32dB—perfect for low-level external gear. LED indicators warn of clipping. A manual crossfader (with CV control) allows for smooth dry/wet blending of your effect chains.

A dedicated expression input with included “floating ring” cable makes it easy and safe to control external pedals or devices with CV, while selectable 3V or 5V outputs ensure compatibility. Whether you’re re-amping, mixing, or processing, the S.B.G-PRO offers pristine audio conversion and seamless integration between modular and external systems.

Features:
• Interface Eurorack with pedals, rack FX, 500 Series, mixers, and studio gear
• Stereo or mono operation via high-quality 6.35mm Neutrik jacks
• Attenuation of outgoing modular signals
• Return amplification up to +32dB with LED clip indicators
• Manual and CV-controlled equal-power crossfader
• Balanced converters with low noise and minimal bleed
• Dedicated expression CV output with selectable 3V / 5V ranges
• Includes voltage-safe “floating ring” expression cable
• Compact utility for effects loops or balanced output duties

Key Features:
• Balanced stereo Eurorack interface
• 32dB return gain with clipping LEDs
• Manual + CV crossfader for dry/wet mix
• Expression CV output with 3V/5V selector
• Perfect for pedals, mixers & outboard gear