| Synth Name: | Yamaha DX100 |
| Synth Manufacturer: | Yamaha |
| Dates: | 1985[1] |
| Price: | £349 GBP $445 US |
| Polyphony: | 8 note |
| Timbrality: | 1 part |
| Oscillator: | 4 sine wave, (4 operators, 8 algorithms) |
| Lfo: | 1 (Sample & Hold, Saw Up, Sine, Square, Triangle, Delay, Key Sync)[2] |
| Synthesis Type: | Digital FM |
| Filter: | None |
| Aftertouch: | Yes[3] |
| Memory: | 192 ROM patches, 32 RAM patches. |
| Synth Hardware: | HD63803XP (CPU), YM3014 (DAC), YM2164 (FM synthesis chip) |
| Keyboard: | 49 mini key |
| Left Control: | 2 wheels for pitch and modulation |
| Ext Control: | Breath controller, MIDI In, out, thru, footswitch, |
The Yamaha DX100 is an FM synthesizer released by Yamaha in 1986.[4] [5] [6] It offers four operators for each of its eight voices, and has eight algorithms (compared to the DX7's six operators for each of its sixteen voices, and thirty-two algorithms). It has only 49 mini-keys, and no arpeggiator or effects, but is still useful, known in particular for its bass patch #1. It features up to 192 presets, seriously improving the DX7's limited preset capabilities. It can also store 24 user-programmable sounds in RAM. It lacks cartridge support, but voice patches can be saved to and loaded from an external cassette recorder.
It was the cheapest user-programmable FM synthesiser made in the 1980s, leading to its popularity even amongst professional musicians in the 80s and 90s. It's essentially a cut down version of the DX21 and DX27, using the same FM chip, the YM2164.