The IGS Audio ONE LA 500 is a 500 Series optical compressor with true high-voltage tube circuitry, creating a smooth and stunning sound that's more than reminiscent of the classic Teletronix LA-2A. Stellar for any and all dynamic control of vocals, acoustic guitars and bass, this two-wide module uses three transformers as well as 12AX7 and 12AU7 tubes getting 250V, giving you a no-compromise audio path. The optical cell is pin compatible with the classic T4, meaning you can switch over to a vintage photocell to get even more of that old-world vibe.