ขายเครื่องเล่นเทปรุ่นใหญ่ Hitachi (LO-D) รุ่น 2200MB ระบบ3หัวเทป เสียงดี หายาก Made in Japan
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Lo-D D-2200MB ¥138,000 (released in 1982)
Commentary
A stereo cassette deck developed by gathering the best of Roady's technology.
The recording head uses a Hitasen Light R&P head.
This head has a sender core that provides ample recording characteristics for the recording
head and a ferrite core for the playback head. This results in a
2.5dB improvement in MML
and a
1.5dB improvement in MOL at 10kHz compared to conventional R&P heads.
The tape running surface has a smooth titanium spray finish to eliminate unnecessary
irregularities and reduce level fluctuations and sliding noise.
The direct coupling of the FET at the head and the first stage of the amplifier improves the
signal-to-noise ratio and frequency response.
It is equipped with an ATRS (Automatic Frequency Correction) system, which can
automatically detect bias, recording sensitivity, and compensation amounts suitable for tapes
to be used in about 10 seconds. This results in a flat frequency response compared to
commercially available tapes.
In addition, the system is equipped with functions such as a mechanism that allows you to
choose between ATRS and FIXED for timer recording, a fast-forward re-ATRS test mechanism
for the leader tape section, a four-stage tape selector that allows you to select test data and
manual data, and an ATRS error warning display.
H·F (High Frequency) accurately displays the high saturation level of tapes, which vary
greatly depending on the type of tape, by tape. Frequency) level indicator.
The mechanism uses a direct drive method. In addition, it adopts a two-motor mechanism
equipped with a dedicated motor for capstan and reel, and a dual-capstan system to reduce
modulation noise.
In addition, the motor adopts a 3-phase Unitorque DD motor that has no cocking factor in
principle, and combined with the use of a capstan shaft boasting a roundness and straightness
of 0.1μ, it realizes low wah flutter.
As a noise reduction system, it is equipped with Dolby B and C types.
In order to expel flutter components that cause noise, the motor holding part chassis is
equipped with a V.C. (Vibration cut) It adopts a metal chassis. The chassis is made by
sandwiching polymeric materials between homogeneous steel plates to dampen vibrations
caused by motor rotation and other factors.
The use of a computer control system enhances operability and reliability.
It is equipped with a computer memory rewind mechanism that allows you to rewind to the
tape position where you last pressed the Play button without having to operate the tape counter.
It is also equipped with features such as a computer auto Rec Mute mechanism, an auto
rewind play/stop mechanism, a one-action timer ON/OFF switch, and a timer alarm mechanism.
It is equipped with an Elapsed-Time function that allows you to display the elapsed time of the t
ape run in minutes and seconds.
It also has an electronic counter that makes it easy to read tape counts.
It is equipped with a dedicated door for head maintenance.
It is equipped with a two-color digital display peak meter.
It is equipped with a remote control terminal.
Hitasen Rite R&P Head
Model rating
Model Cassette deck
Head Reprint: Hitasen Light R&P Combination Head
Erasing: Ferrite Guard Double Gap Erasure Head
Motor For Capstan: Unitork DD Motor For
Reel: DC Motor
Wow Flutter 0.018% (WRMS)
± 0.045% (W・Peak)
Frequency response 20Hz~22kHz/25Hz~20kHz ±3dB (Metal)
20Hz~22kHz/25Hz~20kHz ±3dB (Chromium)
20Hz~20kHz/25Hz~20kHz ±3dB (Normal)
20Hz~20kHz/25Hz~20kHz ±3dB (Ferrichrome)
Signal-to-noise ratio (metal tape)
3% distortion level, hearing correction: 75dB(Dolby C NR on)
69dB(Dolby B NR on)
61dB(Dolby NR off)
EIAJ: 71dB(Dolby C NR on)
65dB(Dolby B NR on)
57dB(Dolby NR off)
Input Sensitivity/Impedance Line in: 100mV/50kΩ or more
Mic: 0.4mV/300Ω~5kΩ suitable
Output impedance (load) Line out: 50kΩ or more
Headphone: 8Ω~2kΩ
Supply voltage AC100V、50Hz/60Hz
Power consumption 30W
Dimensions W435 x H150 x D: 282mm
Weight
7.3kg