SwanPto RCS 20 is a hand-wired 20 watt single channel (2 el-84, 3 12ax7) amp designed by Bob Swanson of Denver Colorado and made in small quantities. This one owner (head/cab) amp built in 2006 is in excellent condition (9.5/10) and was primarily used for home practice and studio. An excellent plug and play rock machine, easy to dial in at any volume (up to 20 watts). No extra buttons, knobs or switches. The boost setting (additional gain stage) can be dialed or footswitched in and out, or bypassed by using the normal channel input. All original, including tubes, and I have never turned a screw on it. See pics for condition and features. Please google and YouTube for chassis pics and additional info, including users manual, etc. Free shipping to U.S. lower 48 by the shipping service of my choice. Ask questions before bidding/purchase. Thanks.