Outfit and enhance your 500 Series rack with the Lindell Audio 77X-500, a stereo FET-based compressor that's ideal for use on stereo buses, stems, submixes, and instrument sources such as drum overheads and double-miked electric guitars. With four OPA1731 opamps and transformer-balanced outputs, the 77X-500 delivers 1176-style compression in linked and unlinked modes. It even offers the classic All-Buttons-In 100:1 ratio as well as 4:1 and 12:1 settings. Attack and release times are variable, while the sidechain's high-pass filter is switchable between off, 100 Hz, and 200 Hz positions. Dial in precise parallel compression via the mix control, and keep track of your gain reduction with the 20-LED meters. A dedicated toggle switch is provided for true hardware bypass. The 77X-500 occupies two slots in any 500 Series power supply (required and available separately).