Sharp SD-FX504

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

Attribution and changes

Adapted from “Sharp SD-FX504”. 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	SD-FX504
Manufacturer	Sharp
Released	Not recorded
Device type	boombox
Recorder	Recorder
MDLP	Yes
NetMD	No
Hi-MD	No
Radio	Yes
Dimensions	435 (width) x 172 (height) x 268 (depth) )mm
Weight	5700
ATRAC ver	Not recorded
Battery	Not recorded Not recorded
Battery notes	Not recorded
Sidecar (depr)	Not recorded
Voltage	100
Power cable	Not recorded
Price (launch)	Not recorded
Price (launch)	Not recorded
-
Inputs	3.5mm line in (analog-only), 3.5mm microphone, CD, Radio recording, Tape deck
Outputs	1/4 inch headphone
Control	Not recorded

Available in Sharp SD-FX504-R Red, SD-FX504-G Green, SD-FX504-? Gray

(Main specifications)

Amplifier method: 2.8MHz sampling 1-bit digital amplifier method
A/D noise shaping: 7th order △Σ (delta sigma) modulation
Practical maximum output: 5W + 5W (JEITA)
Speaker: 8cm full-range speaker (4Ω) x 2
Output terminals: Headphone output: 16 to 50 Ω (recommended 32 Ω), 3.5 mm diameter stereo mini jack x 1
Input terminal: Analog external input: 300 mV, 3.5 mm diameter stereo mini jack x 1, Microphone input: 600 Ω, 3.5 mm diameter monaural mini jack x 1
Antenna terminal … AM dedicated socket
Other terminals … AC socket (100V AC) x 1
Power supply … 100V AC, 50/60Hz
Power consumption … AC 30W
Maximum external dimensions … 435 (width) x 172 (height) x 268 (depth) )mm (JEITA)
Weight: Approx. 5.7kg

Compact disc player

Reading method: Non-contact optical reading method (use of semiconductor laser)
Number of channels: Stereo 2 channels
Frequency response: 20 to 20,000Hz (+1/-3dB) (JEITA)
Wow flutter: Measurement limit (±0.001% W.PEAK) or less (JEITA)

Cassette deck

Track system: Compact cassette stereo
Tape: Playback: Normal/High Position/Metal Tape Recording: Normal tape
Frequency range: Normal tape: 50 to 14,000Hz (JEITA)

Mini-disc part

Recording method: Magnetic field modulation overwrite method
Reading method: Non-contact optical method Reading method (use of semiconductor laser)
Number of revolutions: about 400 to 900 rpm
Error correction method: Advanced Cross Interleave Reed-Solomon Code (ACIRC)
Audio compression/expansion method: ATRAC (Adaptive TRansform Acoustic Coding)/ATRAC3 (MDLP)
Number of channels: Stereo 2 channels / 1 monaural channel
Sampling frequency: 44.1 kHz
Frequency response: 20 to 20,000 Hz (+1/-3 dB) (JEITA)
Wow flutter: Measurement limit (±0.001% W.PEAK) or less (JEITA)