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Kenwood MDX-J7 / MDX-J9

Source reference · needs review · MiniDisc Wiki, September 2026 snapshot · Source edited 2024-04-13

Manufacturer
Kenwood
Model / source grouping
MDX-J7 / MDX-J9
Device type
boombox
MDLP modes
Yes
NetMD interface
Yes
Hi-MD support
No

Capabilities above are source-stated. USB transfer direction, software requirements and regional variants need separate checks.

Manuals & documentation

Search documentation

Accessories & internal parts

Source-referenced components. Check conditions before substituting parts.

Preserved source

Original source · Source edits are not technical review dates. Original credits and licence notes remain below.

Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.

Attribution and changes

Adapted from “Kenwood MDX-J7 / MDX-J9”. 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.

kenwood_mdx-j9_press.jpg

Name MDX-J7 / MDX-J9
Manufacturer Kenwood
Released 2002/06
Device type boombox
Recorder Recorder
MDLP Yes
NetMD Yes
Hi-MD No
Radio Not recorded
Dimensions 470x172x51mm
Weight 1.7kg
ATRAC ver Not recorded
Battery Not recorded AA
Battery notes Not recorded
Sidecar (depr) Not recorded
Voltage 100
Power cable AC
Price (launch) Not recorded
Not recorded
-
Inputs 3.5mm line in (analog-only), Radio recording
Outputs Not recorded
Control USB Type-B

The MDX-J9 is NetMD version of the MDX-G7 and MDX-J7.

The MDX-J7 is very similar to the MDX-G7 in that it doesn't support NetMD and can only be used as PC speakers, but it has upgraded 2-way speakers and can support Kanji and Chinese characters.

The MDX-J7 comes in two colors: silver (S) and green (G) whereas the MDX-J9 only comes in silver.

It has foldable speakers and an ultra-thin body with a depth of 51mm.

  • Originally included the NetMD software Mulia, Kenwood's equivalent of SonicStage.
  • Equipped with a sampling rate converter that can digitally record BS / CS broadcasts
  • CD-MD double speed recording
  • Folder group search function
  • Mobile phone MD title input
  • FM tuner and AM tuner that support automatic setting and display of broadcasting station names by area.
  • Built-in AM antenna
  • CD text display
  • takes 6 AA batteries

Successfully tested with WMD 6/2023 to write/edit discs.

Finding a replacement AC adapter can be tough since it's not a common voltage. The stock adapter is an 8V/1.2A charger.

The tip is a 4.8x1.7mm. If you can't find this exact type of adapter, I've had success sourcing an 8V/2A (the device will draw the 1.2A it needs) with a 5.5x2.1mm tip. I then used a tip adapter to go from the 5.5x2.1mm male to 4.8x1.7mm.

Note, because of how the speakers can fold in/out, a small right-angle adapter is the best choice.

Content adapted from: Kenwood News Release Page av.watch

Manuals

User Manual for both J7/J9

Repair

Photos

Kenwood MDX-J9 Folded

Have photos or data to add? Edit the page! We do not accept contributions via email.

Additional specifications and references
Web MdSupported
ManualUser manual
RegionJapan