Antelope Audio - A4-1B + Perpetual license for plugin
1 915,83 €
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including eco-part : 0,07 €
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Compressor / Gate
Antelope Audio A4-1B is a 100% analog opto-valve compressor with high-quality tubes, remotely controllable via DAW plugin. It offers precise compression, advanced filters, and a musical response suitable for mixing and mastering.
ARTICLE N° 101712
Presentation
The Antelope Audio A4-1B is a professional opto-valve compressor combining 100% analog audio design with advanced digital control features.
Featuring custom-designed British transformers and high-quality tubes, it delivers smooth, musical compression, ideal for mixing and mastering. Its pre-sorted optical cartridge ensures precise response, providing precise control over the audio signal.
With continuously adjustable attack and release times, the A4-1B allows compression to be tailored to the specific needs of each production, ranging from a fast 0.5 ms attack to a long 10-second release.
Its tube-based push-pull amplifier delivers remarkable warmth and dynamics while maintaining a noise floor below -80 dBu, ensuring optimal sound quality across the entire frequency range from 20 Hz to 20 kHz.
In addition to its analog capabilities, the A4-1B stands out for its digital integration with a dedicated plugin (VST3, AAX, AU) and a standalone app, allowing remote control of key parameters, including attack, release, threshold, and ratio.
Its motorized knobs provide seamless interaction between hardware and software, facilitating session recall and A/B testing via a preset system.
Its robust design incorporates a universal, self-adapting power supply (95V-245V) and DC tube heating for reduced noise and increased stability.
The compressor also features advanced side-chain filters, including high-pass and low-pass filters, and an effective de-esser mode.
With a compact 2U rackmount design, the A4-1B is an ideal solution for professional studios seeking high-end analog compression with modern control flexibility.
Featuring custom-designed British transformers and high-quality tubes, it delivers smooth, musical compression, ideal for mixing and mastering. Its pre-sorted optical cartridge ensures precise response, providing precise control over the audio signal.
With continuously adjustable attack and release times, the A4-1B allows compression to be tailored to the specific needs of each production, ranging from a fast 0.5 ms attack to a long 10-second release.
Its tube-based push-pull amplifier delivers remarkable warmth and dynamics while maintaining a noise floor below -80 dBu, ensuring optimal sound quality across the entire frequency range from 20 Hz to 20 kHz.
In addition to its analog capabilities, the A4-1B stands out for its digital integration with a dedicated plugin (VST3, AAX, AU) and a standalone app, allowing remote control of key parameters, including attack, release, threshold, and ratio.
Its motorized knobs provide seamless interaction between hardware and software, facilitating session recall and A/B testing via a preset system.
Its robust design incorporates a universal, self-adapting power supply (95V-245V) and DC tube heating for reduced noise and increased stability.
The compressor also features advanced side-chain filters, including high-pass and low-pass filters, and an effective de-esser mode.
With a compact 2U rackmount design, the A4-1B is an ideal solution for professional studios seeking high-end analog compression with modern control flexibility.
Other features
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Antelope Audio A4-1B
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Opto Valve Compressor
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100% Analog Audio Circuitry
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Custom-Designed British Transformers
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High-Quality Tubes
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Pre-Sorted Optical Cell for Compression Precision
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Tube-Based Push-Pull Amplifier
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Continuously Variable Attack and Release Times
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Audio Specifications:
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• Ratio: 2:1 to 10:1
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• Threshold: Off at 40 dBu
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• Attack: 0.5 ms to 300 ms
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• Release: 50 ms to 10 s
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• Gain: Off at +30 dB
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• Maximum Output Level: +24 dBu
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• Maximum Input Level: +24 dBu
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• Noise Level: < 80 dBu
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• Input Impedance: 10 kOhms Differential ... Output: <60 Ohm
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• Frequency response: 20 Hz to 20 kHz ±1 dB
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Automation and digital features:
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• Remote control via VST3, AAX, AU plugin, or standalone app
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• Exclusive motorized knobs for instant hardware adjustments
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• Automation of attack, release, gain, threshold, and ratio via DAW plugin
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• Comprehensive preset system for session recall and A/B testing
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• Extensive sidechain filtering: low pass, high-pass, and band-pass filters
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• De esser mode with narrow band-pass filter
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Power supply and design:
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• Modern power supply with automatic voltage matching (95 V 245 V, 50-60 Hz)
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• DC tube heating to reduce noise and improve heat dissipation
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• Consistent stereo performance thanks to the calibration system
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• Operating temperature: 0 50°C (32-122F)
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Measurement and Calibration:
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• VU meter for monitoring input, compression, and output
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• Multiple reference levels for accurate measurement
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Physical Dimensions and Weight:
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• Device Dimensions: 88 mm (H) x 483 mm (W) x 252 mm (D)
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• Device Weight: 4.4 kg
Videos
Spotlight on
Antelope Audio has been a leading manufacturer of high-end professional and consumer audio devices for over 20 years, harnessing the power of digital audio without sacrificing the warmth typically associated with analog devices. The FPGA and Synergy Core (FPGA + DSP) technologies built into its audio interfaces allow for highly accurate component-level modeling of legendary studio equipment such as vintage EQs and compressors, exceptional microphones, guitar amps and cabinets, tube mic presets, tape saturation, and more to be found in the Synergy Core interfaces and modeling mics.
