The Distressor EL8 from Empirical Labs is a professional compressor that features a wide range of controls and feature set for studio or live applications. The Distressor offers a warm, vintage sound by using a custom designed gain control circuit. All eight of the Distressor's curves are distinctive, from the 1:1 mode that simply warms up signal with low order harmonics without intentional compression, to the Nuke setting, a brick wall limiting curve that shines on live drum room mics. Some curves have different circuitry, and are effectively different compressors. The 10:1 Opto ratio uses separate detector circuitry to emulate the oldest light controlled devices, such as the LA-2A.
The Distressor features three modes that color the signal, even without compression. These extended audio modes were designed to allow emulation of some very old vintage compressors and limiters, and let the Distressor deliver a classic knee sound all its own by providing user programmable, warm harmonic distortion. In addition to the basic distortion mode, Distort 2 emphasizes tube-like 2nd order harmonics, while in the Distort 3 setting the distortion becomes dominated by 3rd harmonics more closely resembling tape. Two HP filters, with one in the audio path, one in the detector path, are also available to help with low frequencies that can cause pumping and breathing.