Antelope A4-1B Complete | Digitally Controlled All-Analog Optical Tube Compressor
Classic Analog Tone, Modern Digital Workflow: Redefining Hardware Compressors

The Antelope A4-1B is Antelope Audio's all-analog optical tube compressor, featuring precise circuit topology that meticulously recreates the musicality and smoothness of legendary Danish optical compressor designs. At its core, it features the brand's exclusive motorized potentiometer technology, enabling seamless integration between hardware and software, allowing you to control all parameters via DAW plugin and perform unprecedented real-time preset recall and analog automation.
Compared to the tediousness and inaccuracies of traditional analog hardware during project recall, the A4-1B, through its DAW plugin and motorized potentiometers, achieves precise and error-free real-time preset recall and parameter automation capabilities. Whether for A/B comparing different settings or programming dynamic compression changes within a song, the A4-1B perfectly combines the warm sound quality of analog hardware with the ultimate efficiency of a digital workflow.
Quick Facts
- Brand: Antelope Audio
- Model: A4-1B Complete
- Compressor Type: Optical Tube Compressor (Opto-Valve)
- Core Technology: Exclusive Motorized Potentiometers
- Control Method: Hardware Knobs & VST3/AU/AAX Plugin
- Bundled Software: A4-1B Permanent Plugin + 2-Year Synergy Core Native Membership
- Applications: Vocal Processing, Bass Compression, Drum Bus, Mastering, Keyboard Instrument Enhancement

Antelope A4-1B Core Technologies and Features
- Pure Analog Signal Path: Audio signal processing is 100% analog, ensuring the most authentic, warm, classic optical tube compression tone, without any latency or coloration caused by digital conversion.
- Motorized Potentiometers & DAW Integration: Exclusive motorized potentiometer technology allows hardware knobs to respond instantly to DAW plugin commands, enabling precise parameter recall, A/B comparison, and complex automation control.
- Premium Components & Custom Transformers: Utilizes high-quality vacuum tubes, pre-matched optical components, and UK-customized input/output transformers, delivering tight low-end and extremely high sonic fidelity.
- Precise Stereo Matching: Built-in automatic optical component calibration system ensures that even when used in stereo pairs, the compression characteristics of both units are perfectly matched and remain stable over time.
- Extended Filtering & De-Esser Functions: The plugin offers extended sidechain filtering functions, including high-pass, low-pass, and band-pass filters, as well as a De-essing mode for precise vocal sibilance control.
Antelope A4-1B Analog FAQ
THINK2 Warranty & Support
Service Highlights
- Fast Shipping: In-stock items will be shipped within 24 business hours.
- Professional Technical Support: Our certified audio engineers provide consultation for installation, licensing, compatibility, and setup.
- Comprehensive Warranty & After-Sales Service: Includes both manufacturer warranty and THINK2 customer support.
※ Shipping times are calculated based on business days. Actual warranty follows the manufacturer’s policy. THINK2 provides integration and support assistance.
Warranty & Return Policy
- With valid proof of purchase and product serial number, customers are entitled to manufacturer warranty and THINK2 after-sales service.
- DOA / Non-human defects: Within 7 days of purchase, after verification, customers may request return or replacement.
- Exclusions: Damages from misuse, unauthorized modification, consumable parts, natural disasters, or improper use beyond instructions.
- Application Process: Contact customer service during business hours for return instructions.
- Service Coverage: Taiwan region primarily; overseas based on logistics standards.
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