Quad mix. Hot Tuna launched it's hard-driving "Rampage Trilogy" with AMERICA'S CHOICE, a change that pushed the group from it's earlier acoustic-blues roots into full-blown power-trio rock. Guitarist Jorma Kaukonen, bassist Jack Casady, and drummer Bob Steeler stretch out on tracks like "Funky #7" and "Serpent Of Dreams," while the tongue-in-cheek "Hit Single #1" became a fan favorite. Quadraphonic sound, or 4.0 surround sound, utilizes four audio channels connected to four speakers positioned at the corners of a listening space. The multi-tracked audio is mixed dimensional, immersing the listener in an expansive soundscape.