Limited models came with a year subscription of Sirius satellite radio, 6-disc DVD player capable of playing MP3, DVD audio, DVD video, DVD-R and DVD-RW discs, and an available eight-speaker 385-watt Infinity "Intermezzo" audio system with subwoofer.
1977: Forsythe added two way compact systems and vented subwoofer systems with a unique interchangeable tube venting system such the enclosure could be field re-configured for use with various drivers from JBL Professional, Gauss Loudspeakers, Altec and EV.
Home theater in a box, HTIB is an modestly-priced integrated home theater package which "bundles" together a combination DVD-Video or Blu-ray Disc player and multi-channel amplifier (which includes a surround sound decoder, a radio tuner, and other features), speaker wires, connection cables, a remote control, a set of five or more surround sound speakers (or more rarely, just left and right speakers) and a low-frequency subwoofer
His unparalleled sense of rhythm and deep subwoofer-like tone stirred the sauce behind the classic recordings of Elis Regina, João Bosco, Tom Jobim, Djavan and Chico Buarque.