DX7s

The DX7s is a digital synthesizer manufactured by Yamaha, released in 1987 as a simplified and more affordable version of the original Yamaha DX7. It utilizes FM (Frequency Modulation) synthesis, a method that creates complex timbres by modulating the frequency of one oscillator (carrier) with another (modulator).

While the DX7s retained the core FM synthesis engine of its predecessor, it featured a reduced user interface. It offered fewer sliders and knobs, making it less hands-on for real-time sound manipulation compared to the DX7. However, it still provided access to a wide range of sounds, from realistic instrument emulations to abstract electronic textures, thanks to its deep synthesis capabilities.

The DX7s included 64 preset voices and 64 user-programmable memory locations. It also featured a built-in arpeggiator and multi-effects processor, adding further sonic versatility. While it lacked the velocity sensitivity and aftertouch of the original DX7, it offered MIDI In/Out ports, allowing it to be controlled by other MIDI instruments or sequencers.

The instrument was popular among musicians seeking the distinctive FM sound of the DX7 without the higher price point. Its more streamlined interface made it accessible to those less experienced with complex synthesizer programming, while still offering sufficient depth for creative sound design. The DX7s represents a significant step in making advanced digital synthesis more widely available.