Sony MDS-JB940

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

Attribution and changes

Adapted from “Sony MDS-JB940”. 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-JB940
Manufacturer	Sony
Released	2000/09
Device type	deck
MDLP	Yes
NetMD	No
Hi-MD	No
Radio	No
Dimensions	430×110×287mm
Weight	5.3kg
ATRAC ver	Type-R
Power cable	AC
Price (launch)	Not recorded
Price (launch)	¥69 000
-
Inputs	RCA in, Digital optical (TOSLINK), Digital coaxial
Outputs	1/4 inch headphone, RCA out, Digital optical (TOSLINK), Digital coaxial
Control	PS/2 keyboard

Offered in silver and black.

Features:

Upper middle class home MD deck.
ATRAC with Type-R DSP W/ MDLP recording modes
Scale Factor Edit
Playback Pitch Control
Variable coefficient 24-bit digital filter and S-TACT circuitry
Sony Megastorage CD Changer Control
New USB based PC-Link kit - the PCLK-MN10 (MSRP: ¥15,000)
R-Core Power Transformer
TOC Cloning possible.

Specs: SNR > 100dB, Dynamic range: > 98dB, THD: <.003%, 24bit delta-sigma ADC, Current pulse DAC.

Improved over MDS-JB640:

Extra button on front panel: digital filter (no S.F. edit button, only accessible through menu system)
Recording level dial on front panel
Extra buttons on 5-column remote control: date recorded, date present, numeric 11-25, music scan, auto space, peak hold, filter, CD player pause, name (name, character, number), play modes (continue, shuffle, program), time.
Coaxial input appears on all models, as does 2 optical inputs.
Digital filter appears in display modes while stopped, playing and recording. Pitch level appears when stopped and playing.
Clock setting, and time/date stamp for recordings.
Bit-length switching. Used to improve the digital output quality, by changing the outgoing bit-length.
Digital filter changes the tone of the signal going through the analog output.
Aluminium front panel, and is also of QS design. This means that the circuitboards inside are on a slant, reducing standing waves (unwanted reverberation), and it gets a nice shiny QS sticker on it.