The OC8E by SMPro Audio is a 2U standard 19" rackmountable multi-channel optical compressor. Built on the success of the original OC8, the OC8E adds 8 VU meters and more detailed compression controls to an already great optical compressor.Tailored to suit a wide variety of applications, this SMPro Audio multi-channel compressor is perfectly suited for a wide variety of audio applications. Optical compressors are sought after for the distinctive musicality they give to vocals, guitars and other instruments. It has an adjustable compression ratio, attack, release and output controls, which allow you to generate a distinctive soft, rich character while providing magnificent control over dynamics.Fantastic for use as inserts on your multi-channel recording tracks, the OC8E compressor is a great addition to any home or pro studio looking to take advantage of the benefits that optical compression can provide.