in good working condition. 

From Yamaha:

The D1030 Digital Delay Line is a high-performance delay line with onboard EQ designed for commercial sound applications — especially those requiring excellent sound quality and extended dynamic range. It features a I-in/3-out configuration with independently programmable delays of up to 1300 milliseconds (20-microsecond increments) for each output. 15 memory locations are provided so preset programs including delay and EQ settings can be prepared and easily recalled when needed. Programs may be recalled via the front-panel controls, by using a contact-closure system, or via MIDI.

The D1030 offers sound quality, programmability and functional versatility that make it ideal for a broad range of critical applications including time alignment, distance delay compensation, electronically-assisted acous-tics, special effects, and more.