Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.
Attribution and changes
Adapted from “Sony MDS-503”. Links, layout and file names normalized; missing database fields restored; remote embeds replaced with links. Manufacturer manuals and separately credited photographs retain their original attribution.
| Name | MDS-503 |
|---|---|
| Manufacturer | Sony |
| Released | 1995/11 |
| Device type | deck |
| MDLP | No |
| NetMD | No |
| Hi-MD | No |
| Radio | No |
| Dimensions | 430 x 97.5 x 292mm |
| Weight | 3.6kg |
| ATRAC ver | 3.5 |
| Power cable | AC |
| Price (launch) | Not recorded |
| ¥77 000 | |
| - | |
| Inputs | RCA in, Digital optical (TOSLINK), Digital coaxial |
| Outputs | 1/4 inch headphone, RCA out, Digital optical (TOSLINK) |
| Control | Not recorded |
Features: ATRAC 3.5, "Wide bit stream", sampling rate converter, 6 second "time machine" function. Divide positioning in +/-60ms steps.
Specs: Freq resp: 5-20kHz +/-0.3dB
S/N: > 98dB
power consumption: 13W
Attached Wireless remote control RM-D6M
Sold separately Remote commander for katakana input RM-D10P (¥ 7,500)
MD Mechanism: MDM-2A
Base Unit: MBU-2
Optical Pickup: KMS-210A/J-N
ATRAC IC: CXD2536AR
Content adapted from: Minidisc.org page audio-heritage
Manuals
Repair
Photos
Additional specifications and references
| Recorder | Recorder |
|---|---|
| Web Md | No (not NetMD) |
| Battery Page | |
| Sidecar | No |
| Voltage | 100 |
| Remote Page | |
| Atrac Ic | CXD2536AR |
| Manual | Service manual |
| Region | Japan |