Visual The DX1 was enclosed in a handmade
Brazilian rosewood case and was played with a 73-key weighted wooden keyboard with polyphonic
aftertouch. On the left side of the front panel, a printed algorithm chart provided an overview of the 32 selectable algorithms and their associated operator structuring. The DX1 also used solid push-buttons rather than the membrane buttons found on the
DX7, with them containing individual
LEDs to indicate current status.
Controls Compared to the DX5 and the
DX7, the DX1 had more displays that enhanced accessibility and
programmability.
Performance section The performance section had a backlit LCD (40 × 2 characters) which displayed selected programs in Single, Dual, or Split mode, as well as
LFO settings and other voice-specific parameters.
Algorithm panel The algorithm panel had a thirteen single-character
7-segment numeric displays for indicating the selected algorithm, by providing position and relationships of all active operators, as each on these displays were linked to neighbouring ones via individual stripe-style LEDs; the top display showed the of feedback and the bottom one showed the algorithm number.
Oscillator panel The oscillator panel contained two LEDs for indicating frequency ratio (top) or fixed frequency (bottom) in Hz mode, a single LED to indicate positive or negative detune, one single-character numeric display (top) for detune amount, and one four-character numeric display (bottom) for value (ratio or exact frequency) of the selected frequency mode.
Envelope panel The envelope panel had two LEDs for indicating either centre pitch (left) or amplitude level mode (right), eight double-character numeric displays for showing each individual envelope parameter, and four 16-segment bar-style LEDs that graphically displayed either rates (in centre pitch mode) or levels (in amplitude mode). Yamaha booth, showing its display features
Keyboard scaling panel The keyboard scaling panel had eight individual LEDs indicating selected curve response, three double-character numeric displays showing (from left to right) left depth, break point, and right depth values. The panel also had a single-character numeric display for showing rate scaling.
Sensitivity panel The sensitivity panel had two single-character numeric displays showing key velocity (top) and amplitude modulation (bottom), one double-character numeric display showing output level, and one 16-segment bar-style LED that graphically displayed the output level. ==Sales==