The DENON DCD-1130 is a high-performance CD player featuring optical digital output and a 20-bit SLC digital filter. - Brand: DENON - Model: DCD-1130 - Digital Output: Optical digital output - Digital Filter: 20-bit SLC - Power: ON/OFF switch Thank you for viewing. Power-on has been confirmed. Occasionally, the CD tray may not open fully, but pulling it out gently or closing and then reopening the tray will allow it to open properly. It was working without any problems until 2-3 years ago. I haven't checked it since then, so I don't know its current condition.