The TC Helicon Quintet is an affordable voice processor. It provides TC Helicon's harmony processor algorithms with a TC Electronic Reverb for a wonderful voice processor. This unit is made with the vocalist in mind but can be used for processing guitars, keyboard, and anything else for that matter. One of the main selling points is the fact that the Quintet is made to be used in real-time for live applications. It features an excellent mic preamp and 4 harmony voice generator, a double tracking lead voice effect and timing and pitch humanization. Not to forget the superb sounding TC Electronic Reverb. It uses 24-bit AD DA converters and also has a SPDIF in/out port. There is an XLR mic input as well as a 1/4" line level input. You can modify a number of the sound parameters using MIDI. Quintet is a songwriter's best friend, a live performers' dream and the secret weapon for every home project studio.