Empirical Labs DerrEsser 500 Series De-Esser (EL-DS) – 10 Units Available

For sale are 10 Empirical Labs DerrEsser 500 Series De-Esser modules (EL-DS). These units were used in a live production environment as well as studio applications, and have been well maintained throughout their use in a professional rig. This is a rare opportunity to acquire multiple matching high-end 500-series processors, ideal for expanding a console, outfitting a touring rack, or building a consistent studio channel system.

The Empirical Labs DerrEsser is a premium dynamics processor designed to control sibilance and harsh high-frequency content with exceptional transparency. Unlike conventional de-essers that can dull or thin the signal, the DerrEsser provides precise, musical control while preserving clarity, air, and natural tone.

Known for its intelligent frequency targeting and smooth response, it is equally at home on lead vocals, background vocals, voiceover, cymbals, overheads, acoustic instruments, and aggressive sources that need taming without losing presence.

Features:
• (10) Empirical Labs EL-DS 500 Series DerrEsser modules available
• Used in both live sound and studio production environments
• Transparent, musical de-essing without tone loss
• Frequency-selective dynamics processing
• Excellent for vocals, drums, overheads, guitars, and broadcast applications
• Preserves detail while controlling harshness and sibilance
• Simple, intuitive controls with professional results
• Premium analog signal path from Empirical Labs
• Compatible with all standard 500 Series racks and lunchboxes

Condition:
All units are fully tested and functioning as intended. Clean cosmetic condition with normal signs of professional use in a live/studio environment.

A great opportunity to purchase multiple matched units of one of the most trusted de-essing tools in professional audio.

Feel free to reach out with any questions or for additional photos.