The era of streaming in CD-quality and hi-rez music has arrived at one of the world’s major subscription streaming services, complete with a free 90-day trial.

In Alfred Hitchcock's great film Vertigo, filmed in San Francisco in 1957, the protagonist, Scottie, played by James Stewart, becomes obsessed with Madeleine, played by Kim Novak. Scottie, a retired detective, suffers from a disabling case of acrophobia, which becomes a critical if tenuous plot point.

The $799 Theorem was originally shown at the 1992 WCES in a very small chassis that prohibited adding features or upgrades. Sumo has since become more ambitious, putting the Theorem in a full-sized chassis and offering several upgrade options that would have been impossible in the truncated version.

While it can't exactly be said that the folks from The Mod Squad invented the game of audiophile modifications of existing, current-production hardware, they certainly have grown to be one of the major leaguers. Their mods have a reputation for being well-thought-out, nearly always offering improvements over the originals. And while they weren't the originators of the concept, any company which brought the world Tiptoes (probably their most famous product) will probably have a niche in the 21st-Century Museum of High-End Audio.