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With over two decades of experience crafting cutting-edge digital audio equipment, Antelope Audio has consistently pushed the boundaries of what's possible in professional audio. Now, the brand is breaking new ground once again with the A4-1B Analog Automated Opto Valve Compressor, an innovative new piece of outboard gear that marries the cherished sound of classic tube-opto compression with groundbreaking modern functionality.
The A4-1B isn't just another analog compressor, it's a meticulously engineered tribute to one of the most revered Danish tube-opto designs, enhanced with contemporary features that seamlessly bridge the gap between vintage warmth and modern workflow demands. Let's dive into what makes this compressor a game-changer for studios of all sizes.
At its heart, the A4-1B meticulously recreates the exact analog signal path of the original tube-opto design. Custom-made transformers from the UK provide tight low-end response and pristine audio reproduction, while premium tubes deliver the warmth and character that made the original design so coveted. High-grade capacitors ensure pristine clarity, maintaining the consistency and precision that modern engineers demand.
But the A4-1B takes the original design to a whole new level. Antelope Audio has implemented an automated Opto-cell Test System that calibrates the unit, compensating for variations as small as 0.5dB in gain reduction. This breakthrough feature not only ensures consistent performance over time but also makes stereo matching between multiple units more precise than ever before.
Perhaps the most impressive feature of the A4-1B is its seamless integration of analog and digital worlds. The compressor features motorized pots that physically rotate in response to software control, preserving the tactile satisfaction of hands-on adjustment while offering the precision and recall capabilities of digital systems. These automated controls allow settings to be saved and recalled with sub-degree accuracy, streamlining workflow without sacrificing the authentic analog experience.
The comprehensive A4 Software Control System takes things even further, offering deep integration with modern DAW workflows. Available as both a standalone application and a plugin, this interface provides instant access to stored presets and detailed parameter control. The software also enables sophisticated sidechain filtering options, including high-pass, low-pass, and band-pass modes, making the A4-1B equally adept at traditional compression as well as de-essing.
Understanding the demands of professional studios, Antelope Audio has equipped the A4-1B with several features designed to ensure long-term stability. The modern power supply incorporates automatic voltage adaptation and DC heating for the tubes, reducing noise and enhancing reliability. An automatically calibrated meter guarantees accurate readings of input/output levels and gain reduction both on the hardware unit and within the software interface.
The A4-1B is available as a bundle with the compressor, a perpetual A4-1b plug-in license, and four years of Synergy Core Native access($3140). You can also purchase a perpetual license for the A4-1B plug-in on its own ($499).
Want to hear the A4-1B in action? Check out our First Listen video!
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