Classic Recording Studio Equipment

Vintage Digital

Eventide Model H910

Eventide Model H910 Harmonizer®

The Eventide Model H910 Harmonizer was developed by Eventide in 1974. It was the world's very first digital effects processor. It combined ‘de-glitched’ pitch change with delay and feedback. It could be controlled by a keyboard remote control to instantly shift pitch in half steps.

Details

The Eventide Model H910 Harmonizer is a legendary piece of music technology that was first introduced in 1974. It was created by Eventide co-founders Richard Factor and Tony Agnello, who set out to create a digital pitch-shifting device that could be used to manipulate the pitch of recorded sounds.

The Eventide Model H910 was a groundbreaking device that used a combination of digital and analog circuitry to achieve its unique sound. It was one of the first devices to use microprocessors, and it was also the first device to use a random-access memory (RAM) chip for storing digital audio. This allowed it to perform real-time pitch-shifting and harmonizing, something that was previously impossible with analog equipment.

The Eventide Model H910 quickly gained popularity among musicians and producers, thanks to its ability to create otherworldly effects and transform the sound of any instrument or voice. It was used by a wide range of artists, including David Bowie, Brian Eno, Frank Zappa, and even on the iconic theme song for the television show “Doctor Who.”

One of the most notable features of the H910 was its ability to create harmonies in real-time. It had a “shift” knob that allowed users to set the desired pitch shift, and a “harmonizer” knob that allowed them to select the interval between the original note and the harmonized note. The result was a rich, otherworldly sound that could be used to create complex harmonies or to add an extra dimension to a solo instrument or vocal performance.

Another feature of the Eventide Model H910 was its ability to create flanging and phasing effects. By adjusting the delay and feedback settings, users could create swirling, psychedelic sounds that were perfect for creating spacey, atmospheric textures.

Over the years, Eventide released several updated versions of the H910, including the H949 and H3000. These devices added new features and improved the sound quality, but the H910 remained a favorite among musicians and producers for its unique sound and versatility.

Today, the Eventide Model H910 remains a highly sought-after piece of music technology. Its impact on the recording industry and popular music cannot be overstated, and its legacy continues to be felt today through its influence on modern pitch-shifting and harmonizing effects.

Eventide H910

 

An early prototype of the Eventide Model 910, kindly supplied by Eventide.

Specifications

Released

  • Quantization: Unknown
  • Sampling Frequency: Unknown
  • Frequency Response: 20Hz-12kHz
  • Dynamic Range: 90dB
  • THD: Below 0.2%

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The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

When you purchase the H910 Harmonizer® plug-in, you also receive Eventide’s exclusive H910 Dual Harmonizer®. This version recreates the popular technique of running two H910 units in parallel to create lush doubling and other interesting effects.

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THE PIONEER

by Marcus

Sound Quality 40%
Build Quality 40%
Usefullness 50%
Mojo/Funk 80%
Reliability 30%

This was a new magical device in 1974. We could change pitch without changing the length. The introduction above says it had ‘de-glitch’, it did not. De-glitching was an optional board for the H949. The more pitch change you choose the more glitching you get. I still love it for doubling at the smallest pitch change it will do.

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