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Private company

Decillionix

Defunct computer music hardware company

Decillionix was a company based in Sunnyvale, California which sold computer music hardware and software in the mid-1980s. Its first product was the DX-1 for the Apple II, sold in 1983. The DX-1 consisted of a monophonic 8-bit audio input card, a monophonic 8-bit audio output card, and the DX-1 Effects II software.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

  • HeadquartersSunnyvale1

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Decillionix was a company based in Sunnyvale, California which sold computer music hardware and software in the mid-1980s. Its first product was the DX-1 for the Apple II, sold in 1983. The DX-1 consisted of a monophonic 8-bit audio input card, a monophonic 8-bit audio output card, and the DX-1 Effects II software. Decillionix later produced MIDI software and hardware.2

Products and brands

Original DX-1 two-card sampler, and Effects II software for Apple II (1983)

Single card version of the hardware for Apple II (1984)

Splash, an audio visualization program for Apple II (1984)

Echo II, an effects program for Apple II (1985)

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P-Drum, a percussion sequencing program for Apple II (1985)

Synthestra, an hierarchical MIDI sequencing program for Apple II (1986)

The Box, a standalone MIDI effects device (1986)

Splash, P-Drum, and Synthestra were written by David Van Brink who also wrote Tubeway.

From Wikipedia’s article on Decillionix, shared under CC BY-SA 4.0.3

Sources

The numbers on this page point here. Each one links to the record it came from.

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