1992 D-311
The D-311 is a high-end portable CD player with a high-quality audio output configuration.
1993
D-321
The D-321 is a portable CD player equipped with an electronic anti-skip mechanism and optical digital output. It features approximately 3 seconds of buffer and an expanded audio output and connectivity configuration. It supports both battery operation and connection to external devices. It is a mid-to-high-end model suitable for both portable and stationary use.
