Specifications, Ref e renc es – Sharp IM-DR420H User Manual
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03/7/21 IM-DR420H_UK_6.fm
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IM-DR420H
IM-DR420H(E) TINSE0554AWZZ
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Specifications
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification chang-
es for product improvement without prior notice. The performance specification figures indicated are nominal values
of production units. There may be some deviations from these values in individual units.
Power source:
DC 1.2 V:
Rechargeable Nickel-Metal Hydride Battery (AD-N70BT) x 1
DC 3 V:
AC adaptor (AC 110 - 240 V, 50/60 Hz)
DC 1.5 V:
Commercially available, "AA" size (LR6), alkaline battery x 1
Power consumption:
60 mA (AC adaptor)
Output power:
RMS: 16 mW (8 mW + 8 mW)
(0.2 % T.H.D.)
Charging time:
Approx. 3.4 hours (90 %)
Approx. 5.4 hours (fully charged)(When using the AC adaptor included with the unit)
Dimensions:
Width: 83 mm (3-9/32")
Height: 28 mm (1-1/8")
Depth: 76 mm (3")
Excluding the projection around the USB connection terminal
Weight:
143 g (0.32 lbs.) with rechargeable battery
Input socket:
Line/optical digital, microphone (powered by the main unit)
Output socket:
Earphones (impedance: 32 ohms)/remote control
Type:
Portable MiniDisc recorder
Signal readout:
Non-contact, 3-beam semiconductor laser pickup
Audio channels:
Stereo 2 channels/monaural 1 channel
Frequency response:
20 - 20,000 Hz ( 3 dB)
Rotation speed:
Approx. 400 - 1,800 rpm CLV (Playback), approx. 400 - 2,700 rpm CLV (Recording)
Error correction:
ACIRC (Advanced Cross Interleave Reed-Solomon Code)
Coding:
ATRAC/ATRAC3 (Adaptive TRansform Acoustic Coding), 24-bit computed type
Recording method:
Magnetic modulation overwrite method
Sampling frequency:
44.1 kHz (32 kHz and 48 kHz signals are converted to 44.1 kHz, and then recorded.)
Wow and flutter:
Unmeasurable (less than 0.001 % W. peak)