Antelope Audio A4-1B

A4-1B was designed to preserve vintage Opto-Tube units' highly praised smoothness and musicality. Even when pushed to the limit, the compressor remains transparent, breathing new life into vocal tracks, bass, keys, or percussion. A4-1B sounds and reacts just like the legendary hardware that inspired it allowing you to apply the legendary sound of Opto-Valve compression to your modern production.

Features:
Authentic Analog Sound

• 100% purely analog circuit for the audio signal
• High-quality components ensuring superior sonic performance
• Custom-designed UK transformers and high-quality tubes
• Pre-sorted opto-cell for optimal compression precision
• All tube-based push-pull amplifier
• Continuously variable attack and release time

Automated calibration systems

• Ensured compression precision over time
• Modern power supply for tube longevity and reduced humming
• Consistent stereo-link performance via calibration system
• Multiple reference levels for metering
• VU-meter for monitoring input, compression and output

A4 – Antelope Audio Analog Automation (optional)

• Remote control via VST3, AAX or AU plugin, or standalone control app
• Settings instantly applied on hardware via proprietary motorized knobs
• Comprehensive file preset system
• Automation for attack, release, gain, threshold and ratio via DAW plugin
• Extended filtering section with low pass, high pass and band pass filtering for side chain signal
• De-esser mode utilizing narrow band pass filter

In-the-Box Content

• A4-1B analog compressor
• Power cable
• USB-C to USB-C cable
• Get Started leaflet