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Antelope Audio A4-1B Analogue Opto-Tube Compressor

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Recommended price £2,970 -31%
£2,050 incl. 20% VAT
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Antelope Audio A4-1B Analogue Opto-Tube Compressor
Product no: 9000-0138-2256 Bax Music Warranty: This product comes with a 3-year warranty.

General

The Antelope Audio A4-1B is an advanced opto-tube compressor that combines the warmth of classic analogue compression with the flexibility of modern tech. Here, the fully analogue signal path is supported by custom UK-made transformers and high-quality tubes, resulting in a tight low-end and transparent-and-musical compression. Basically, the A4-1B is an essential, future-proof tool for professional engineers and producers who are after that legendary Scandinavian compression sound.

A DAW Expansion in Hardware Form

Via the A4 software suite (not included), this analogue compressor is easily integrated into a digital DAW-based workflow. Automated attack, release, gain, threshold and ratio parameters offer unprecedented control, while motorised potentiometers enable instant-synchronisation with software settings. In addition, the A4-1B features a comprehensive filter section with high-pass, band-pass and de-esser filtering for precise frequency tweaks when side-chaining.

Automatic Calibration and Accurate Gain-Staging

One of the stand-out features of the А4-1B are its calibration systems. A built-in Opto-Cell Test System ensures consistent compression and long-term reliability, even after decades of work, but the automatic calibration shines the most when two units are set up in stereo or when you need to recall old presets. Open the Calibration menu and set the reference level to -10 dBu, 0 dBu, +4 dBu or +20 dBu and easily calibrate the VU meter as needed.

Specifications

Product features

Sustainable product not specified
19-inch rack size 2U
Type of dynamic processor compressor
Stereo function no
Number of channels 1

Weight and dimensions including packaging

Weight (incl. packaging) 6,5 kg
Dimensions (incl. packaging) 64,0 x 35,0 x 14,0 cm

Product specifications

  • opto-tube compressor
  • compressor:
    • ratio: 2:1 to 10:1
    • threshold: off to -40dBu
    • attack: 0.5ms to 300ms
    • release: 50ms to 10s
    • gain: off to +30dB
  • maximum output level: +24 dBu
  • maximum input level: +24 dBu
  • noise level: < -80 dBu
  • input impedance: 10 kOhm differential
  • output impedance: < 60 Ohms
  • frequency range: 20 Hz to 20 kHz ±1 dB
  • power supply: 95V - 245V, 50 Hz/60
  • dimensions: 483 x 88 x 252 mm
  • weight: 4.4 kg
  • included:
    • power cable
    • USB-C cable
    • 1-year subscription to Antelope Membership
    • Get Started guide

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