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Specifications
System
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 780 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(This output is the value measured at a
distance of 200 mm from the lens surface on
the optical pick-up block with 7 mm
aperture.)
Recording and playback time
Maximum 74 minutes (MDW-74, stereo
recording)
Maximum 148 minutes (MDW-74, monaural
recording)
Revolutions
400 rpm to 900 rpm (CLV)
Error correction
Advanced Cross Interleave Reed Solomon
Code (ACIRC)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
Adaptive TRansform Acoustic Coding
(ATRAC)
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
Inputs
Microphone: stereo mini-jack, 0.22–0.78 mV
Line in: stereo mini-jack, 69–194 mV
Optical (Digital) in: optical (digital) mini-jack
Outputs
Headphones: stereo mini-jack, maximum
output level 5 mW+ 5 mW, load impedance
16 ohm
Line out: stereo mini-jack, 194 mV, load
impedance 10 kilohm
General
Power requirements
Sony AC Power Adaptor (supplied)
connected at the DC IN 6 V jack:
220–230 V AC, 50/60 Hz (European
model)
230–240 V AC, 50/60 Hz (UK model)
Lithium ion rechargeable battery LIP-12(H)
(supplied)
Two LR6 (size AA) alkaline batteries (not
supplied)
Battery operation time
See “Battery life” (page 26)
Dimensions
Approx. 116.5× 26 × 78 mm (w/h/d)
(4
5
/8 × 1
1
/16 × 3
1
/8 in.)
Mass
Approx. 220 g (7.1 oz) the recorder only
Approx. 317 g (10.2 oz) incl. a recordable MD
and LIP-12 (H) lithium ion rechargeable
battery
Supplied accessories
AC power adaptor (1)
Headphones with a remote control (1)
LIP-12 (H) lithium ion rechargeable battery
(1)
Dry battery case (1)
Carrying pouch (1)