Heritage Audio GRANDCHILD 670 500 Compressor Limiter

The Heritage Audio GRANDCHILD 670 500 Compressor Limiter delivers the legendary spirit of the iconic 670 tube compressor in a compact, modern 500 series format. Designed to bring classic variable-mu compression character to today’s modular setups, the GRANDCHILD 670 offers rich, musical compression with smooth dynamic control, making it a perfect tool for vocals, drums, guitars, bass, and full mixes.

Engineered with fully discrete, Class-A circuitry and featuring a high-quality transformer-balanced signal path, the GRANDCHILD 670 captures the warmth, depth, and vintage tone that engineers and producers have relied on for decades. Despite its compact size, it offers extensive control, including variable attack and release times, selectable compression ratios, and flexible stereo linking capabilities when paired with a second unit.

Hand-built with premium components, the Heritage Audio GRANDCHILD 670 is ideal for adding professional compression and unmistakable analog coloration to your 500 series workflow. Experience the power of a true studio classic, scaled for modern racks without compromising on sonic excellence.

Key Features:

• Classic variable-mu compression inspired by the legendary 670
• 500 series format for modular studio systems
• Fully discrete Class-A design with transformer-balanced input and output
• Variable attack and release times for precise dynamic control
• Selectable compression ratios for versatile applications
• Linkable operation for stereo use with two units
• Premium components for superior sound quality and reliability
• Rich, warm analog compression with smooth musical response
• Ideal for vocals, drums, guitars, bass, mixes, and mastering
• Hand-built for professional studio environments

Technical Specifications:

• Format: 500 series single-slot module
• Compression Type: Variable-mu design
• Controls:
  • Input gain
  • Threshold
  • Attack and release time adjustment
  • Compression ratio selection
  • Stereo link capability (with two units)
• Input/Output: Transformer-balanced via 500 series rack
• Frequency Response: 20 Hz – 20 kHz ±1 dB
• THD+N: <0.1% at +4 dBu
• Maximum Output Level: +26 dBu
• Power Requirements: Standard 500 series rack with +/-16V
• Weight: Approximately 0.7 kg

Bring the legendary sound of vintage tube compression to your modern 500 series rack with the Heritage Audio GRANDCHILD 670 500 Compressor Limiter — a compact powerhouse for dynamic control and analog warmth in any professional studio.