The Esoteric FA-1 preamplifier features a specific type of XLR output designed to enhance compatibility and performance with electrostatic headphones (ESL-A). These outputs are configured to deliver the high-voltage, balanced signal required to properly drive such headphones, differing significantly from standard XLR outputs used for dynamic or planar magnetic headphones. This specialized configuration allows for a direct and optimized connection, maximizing the potential of both the preamplifier and the electrostatic headphones.
The incorporation of these outputs is significant because it eliminates the need for separate electrostatic headphone amplifiers, streamlining the audio chain and potentially reducing signal degradation. This design choice provides a high-fidelity listening experience tailored to the unique requirements of electrostatic technology. Historically, electrostatic headphones demanded dedicated amplification due to their distinct operating principles. The integration within a preamplifier represents a convergence of technologies for enhanced convenience and performance.
