Antelope Audio A4-1B Analog Automated Opto Valve Compressor - Complete Edition

Antelope Audio A4-1B Analog Automated Opto Valve Compressor - Complete Edition

The A4-1B is available in three different subscription editions - Member's, Complete, and Ultimate. This listing is for the Complete Edition which includes a perpetual license for the A4 Analog Automation Control plug-in and a 2-year subscription to Antelope's Synergy Core Native library. Add immediate professional sound to your mixes with this collection of native plug-ins, crafted by world class experts shaping the analog warmth of the original hardware into digital precision.

The Antelope Audio A4-1B seamlessly blends the warm, rich sound of classic tube compression with the precision and versatility of modern technology. Built around an all-analog signal path with premium components, the A4-1B stands apart from the crowd with advanced features like DAW integration, remote control, automation, and user-configurable filters. This one-of-a-kind processor is a must-have for audio professionals seeking both authenticity and innovation.

PREMIUM COMPONENTS

At the heart of the A4-1B lies an all-analog circuit including premium tubes, custom transformers, and a precise opto-cell detection system that delivers the kind of musical dynamics and rich tone you’re used to hearing from classic optical compressors. The analog signal path is controlled digitally, making it more reliable, accurate, and precise than vintage units, without sacrificing any tone.

ADVANCED FILTERING OPTIONS

Need a little more control over your sound? The A4-1B’s extended filter section includes high-pass, band-pass, and de-essing filters, providing precise control over compression. These user-configurable filters target specific frequencies for sidechain applications and help clean up vocals and instruments with precision, giving you a flexible and powerful tool to craft the sounds in your head.

BRINGING ANALOG INTO THE DIGITAL AGE

The A4-1B also has access to the A4 Analog Automation Control DAW plug-in, available in VST3, AU and AAX formats, offering full integration into your DAW setup. Proprietary motorized potentiometers allow settings to be applied instantly to the hardware, while the preset system ensures easy recall for consistency across sessions and quick A/B testing. Attack, Release, Gain, Threshold, and Ratio can be automated directly from the DAW, just like with any native plugin. The extended filter section includes low pass, high pass, and band pass filters for sidechain applications, and the de-es mode with a narrow band pass filter helps clean up vocals and instruments with precision.

The A4-1B Complete Edition comes with a code for a perpetual license for the A4 plug-in, as well as complimentary 2 years of Synergy Core Native membership, with access to more than 70 critically acclaimed compressors, EQs, reverbs, delays, pitch correction plugins and more.

VINTAGE WARMTH MEETS MODERN PRECISION

The Antelope Audio A4-1B bridges the gap between vintage tube compression and modern workflow, offering rich analog tone with the precision of digital control. With its premium all-analog circuitry, seamless DAW integration, and advanced filtering options, it’s an indispensable tool for producers, engineers, and artists who demand both warmth and flexibility. Whether you’re dialing in smooth vocal compression, tightening up drum transients, or shaping mixbus dynamics with surgical precision, the A4-1B delivers unmatched versatility.

ANTELOPE AUDIO A4-1B COMPLETE EDITION 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 (INCLUDED)

• Remote control via VST3, AAX or AU plug-in, 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 plug-in
• Extended filtering section with low pass, high pass and band pass filtering for side chain signal
• De-esser mode utilizing narrow band pass filter