9/10 Condition, tested good.
The Yamaha D1500 Digital Delay (released in 1984) holds a historic title as the world's first commercially available digital delay unit featuring a MIDI interface. Built during an era of transition from tape echoes to digital rack units, it is a highly regarded monophonic processor known for adding character, warmth, and classic 1980s texture to synthesizers, drums, and guitars. [1, 2, 3, 4, 5]
Key Specifications & Architecture
- Delay Range: 0 to 1,023 milliseconds (1.023 seconds) adjustable in strict 1ms increments. [1, 2]
- Audio Quality: A pristine 20Hz to 18kHz frequency response maintained even at full delay extension. [1, 2]
- Memory & Banks: 16 fully programmable user memory patches and 6 factory ROM presets. [1, 2]
- LFO Modulation: Dual modulation waveforms—Sine (for traditional lush chorusing and flanging) and Square (for unique stepped, rhythmic, or abrupt time-sweep effects). [1, 2, 3]
- Hardware Connectivity: Equipped with balanced XLR and unbalanced 1/4" inputs/outputs, a front headphone jack, and selectable -20dB or +4dB operating levels to easily match guitar rigs or studio consoles. [1, 2]