And they weren't limited to musical effects - for example, most of the alien/machine voice processing in the BBC's iconic 1978 radio comedy drama The Hitchhiker's Guide To The Galaxy was also courtesy of an H949. Harmonizers also featured heavily in the creative guitar sounds and effects on albums from the likes of AC/DC, David Bowie, Van Halen, Led Zeppelin, and many more. The more powerful H949 Harmonizer that followed soon became a mainstay of high-end recording studios and broadcasters, and found its way into the stage racks of many well-heeled musicians. In 1974 the brilliantly innovative H910 Harmonizer was an instant success, providing not only delays with modulation and feedback, but also playable pitch-shifting. This was back at the very beginnings of the digital audio revolution and, as with many contemporary companies, Eventide's early forays into ones and zeros were with variations on digital delay lines. The company started out in 1970 making auto-locators for Ampex multitrack tape recorders, but they first came to the attention of most musicians when they launched the Instant Phaser. The Eventide name has been revered in the recording studio world for as long as I can remember.
Eventide's most powerful ever Harmonizer crams half a century of effects know‑how into a unit that's elegant, easy to use and - thanks to its upgradeability - completely futureproof.