Avalon's VT737sp is a complete vocal/instrument channel with a tube preamp, opto-compressor and a sweep eq. It is a venerable industry workhorse which can be found in many studios and high-end live settings. Its pre-amp is pure class-A which Avalon is famous for. It is has mic, line and DI inputs.This particular unit has been housed in-our live room at Songphonic Studios (www.songphonic.com) and was used primarily for rehearsals. As a result it has been on for less than 1,000 hours. It is in perfect working condition and the VU lamps have just been replaced. We are refurbishing our live room and hence the sale. It has given us sterling service and we will be sad to see it go. You can read more about the Avalon 737sp on the following Avalon url http://www.avalondesign.com/manuals/Vt737sp_Manual_2016.pdf The unit will ship with the manual and the power cord (EU or UK depending on the buyer). We always ship via UPS couriers and 14-day return is standard (where the buyer pays the postage). Within the UK shipment is free. We can provide a VAT invoice upon request.