Antelope A4-1B
Estimated delivery in Italy between 29 October and 5 November
Mono tube optical compressor with digital control, recall, and motorized potentiometers
Features
Authentic sound
- 100% pure analog audio path
- High-quality components for superior sonic performance
- Custom-designed UK transformers and high-quality tubes
- Pre-selected opto-cell for optimal compression precision
- All-tube push-pull amplifier
- Continuously adjustable compression ratio, attack time, and release time
- Fixed, manual, and hybrid timing modes
Modern performance
- Consistent compression precision over time
- Modern power supply for longer tube life and reduced hum
- Consistent stereo link performance thanks to a calibration system
- VU meter for monitoring input signal, compression, and output
- Multiple reference levels for metering
Automation
- Remote control via standalone app or DAW plug-in, available in VST3, AAX, and AU formats
- Settings are instantly applied to the hardware via proprietary motorized potentiometers
- Comprehensive preset system with the ability to perform quick A/B comparisons
- Automation of attack, release, gain, threshold, and ratio via DAW plug-in
- Extended filtering section with low-pass, high-pass, and band-pass filters for the sidechain signal
- De-esser mode using a narrow band-pass filter
Technical specifications
- Ratio: 2:1 – 10:1
- Threshold: Off – -40 dBu
- Attack: 0.5 ms – 300 ms
- Release: 50 ms – 10 s
- Gain: Off – +30 dB
- Maximum output level: +24 dBu
- Maximum input level: +24 dBu
- Noise level: < -80 dBu
- Input impedance: 10 kΩ differential
- Output impedance: <60 Ω
- Frequency response: 20 Hz – 20 kHz ±1 dB
- Power supply: 95 V / 245 V, 50–60 Hz
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About Antelope
Antelope Audio is a leading brand in the professional audio interface, digital converter, and ultra-high precision audio clock sectors. Renowned for its impeccable sound quality and proprietary clocking technology, Antelope Audio offers solutions for recording studios, broadcast, post-production, and mastering. The range includes audio interfaces with real-time hardware emulations via FPGA technology, superior quality microphone preamplifiers, and high-end AD/DA converters. Antelope Audio products are chosen by audio professionals worldwide for their reliability and excellent performance. On musicdelivery.net, you can purchase Antelope Audio interfaces and converters, essential tools for those seeking the highest quality in professional music recording and production.
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Shipments
Shipments
We ship throughout Italy and the European Union via selected express courier partners. All orders travel in special reinforced packaging and are covered by 100% included insurance to fully protect the value and integrity of professional equipment during transport.
Returns and refunds
Returns and refunds
You can request a return within 14 days of receiving the order. As these are professional hardware and devices, items must be returned completely intact, unused, unactivated, and sealed in their original packaging, complete with all accessories and manuals.
Frequently Asked Questions
Can't find the answer you're looking for? Our team of specialists is at your disposal for configurations or technical questions.
What are your shipping and delivery times?
What are your shipping and delivery times?
Orders are processed within 24/48 business hours. Delivery is made by insured express courier to guarantee maximum protection and safety even for the most delicate and expensive equipment.
Are the products covered by an official warranty?
Are the products covered by an official warranty?
Yes, all products are 100% original and covered by the official 24-month manufacturer's warranty. In addition, our technical department offers free after-sales support to assist you with the initial setup of your system.
How does the right of withdrawal work?
How does the right of withdrawal work?
If the hardware does not meet your expectations, you can return it within 14 days of receipt. The product must be returned intact, unused, and sealed in its original packaging, complete with all accessories and manuals.
What does it mean if a product is "Available on order"?
What does it mean if a product is "Available on order"?
Some complex professional audio systems or lighting equipment are ordered directly from official distributors based on customer requests. You can proceed with the purchase as normal and our team will immediately inform you of the exact arrival times at our warehouses.

