Name MDM-X4
Manufacturer Sony
Released 1996/11
Device type pro
Recorder Recorder
NetMD No
Hi-MD No
Radio No
Dimensions 423 x 119 x 385mm
Weight 5.1kg
ATRAC ver 3
Battery notes
Sidecar (depr) No
Voltage 100, 120, 230
Power cable AC
Price (launch) $1 250
¥118 000
Inputs 3.5mm line in (analog-only), 3.5mm microphone, RCA in, XLR in
Outputs 3.5mm line out (analog-only), 3.5mm headphone, RCA out, XLR out

ATRAC 3.0 multitrack recorder. Uses MD Data discs.

Earlier units had a bug in the firmware that sometimes wouldn't let you eject stereo discs and prevented track deletion. Sony would repair or would send you the replacement part, but it is unlikely to be available now.

An MDM-Z4 MKII was also released. Added ATRAC 4.5 support, linking capability, instant start, and 20-character titles. Seems to have sold for $700-750.

MDM-X4 tech:
Unit has 2 ATRAC Encoder chips (for channel 1/2 (IC512) and 3/4 (IC511)) and 2 ATRAC Decoder chips for playback (ch. 1/2 (IC518) and 3/4 (IC517)).

MD Mechanism: MDM-2CR2
Base Unit: MBU-2B2
Optical Pickup: KMS-210A/J-N
ATRAC Encoder IC: CXD2536CR (IC511 IC512 IC517 IC518) MD Data encoder: CXD1809R (IC533)

Content adapted from: MDM-X4 page audiotechnology review (aus) Sweetwater SoundOnSound 2 (release may have been pushed back to 1997)

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  • equipment/sony/pro/mdm-x4.txt
  • Last modified: 10 months ago
  • by jdub