This is a Presonus channel strip that combines a microphone preamplifier with EQ and compressor. I used it actively until around 2020. I haven't used it for a long time since I renewed my equipment. I have confirmed that it powers on and produces sound. Please understand that this is a used item in its current condition, as I am unable to perform detailed checks such as verifying its performance according to the specifications. Everything in the photos is included.