ขายเครื่องเล่นเทป NAKAMICHI DR-1 รุ่นท็อปในซีรี่ส์ ระบบ 3 หัวเทป เสียงดี สภาพสวยมาก Made in Japan
ขายเครื่องเล่นเทป NAKAMICHI DR-1 รุ่นท็อปในซีรี่ส์ ระบบ 3 หัวเทป เสียงดี สภาพสวยมาก ทำงานสมบูรณ์ Made in Japan
เสปคเครื่อง และ รีวิวร์จากต่างประเทศครับ...
Nakamichi DR-1 ¥ 115,000 (released in 1993)
Commentary
This cassette deck was developed using Nakamichi's deck technology.
Head part uses Nakamichi's unique discrete 3 head system.
The discrete three head system, in which the three recording, playback, and erasing heads
are structurally completely independent, enables extremely precise (magnetic and mechanical)
azimuth adjustment, and also shuts out magnetic field interference by keeping the recording
head and reproducing head far apart.
The recording and reproducing heads use an inline recording head with a crystal-core for
sound quality. In particular, the reproducing head has an ultra-narrow gap of 0.8 μ, enabling
ultra-high-frequency playback at 21 kHz. The head coil uses top-grade oxygen-free copper
(OFC) for low signal transmission loss.
Equipped with a manually adjustable playhead azimuth tuning mechanism, it provides the
best condition for playing back tapes recorded on other decks.
The mechanism uses a closed-loop dual capstan system to obtain optimum tape tension
and stable tape travel.
The Nakamichi has added a unique twist to this method. The supply and take-up capstan
diameters are slightly changed to create a frequency-distributed system that avoids overlapping
,flutter cycles and suppresses harmful tape vibrations. In addition, the Nakamichi is equipped with
a unique tape pad lifter that controls tape travel with only two capstans, making it a more ideal
method. These measures reduce modulation noise and contribute to a longer head life.
The audio circuit uses dual-mono construction to eliminate channel interference, and the DC
amplifier configuration eliminates coupling capacitors that cause distortion.Ambisonic
microphones
The recording amplifier circuit is a pure A-class, and 12 adjustment circuits are installed in total
to maximize the capacity of the tape. The playback amplifier circuit consists of only discrete
elements and is integrated with the transport side playhead assembly to eliminate cable
routing and reduce transmission loss.
Multi-regulated power supply system is adopted for the power supply section to eliminate
power interference between sections.
Equipped with bias fine adjustment volume.
A DC servo capstan motor is used as the drive motor.
It uses a microprocessor controlled motor drive silent mechanism to achieve quiet operation.
Equipped with a tape slack prevention mechanism.
Equipped with bi-directional counter search.
Equipped with a program check function that allows you to check recorded contents.
Equipped with Dolby B/C Type NR as a noise reduction system.
Equipped with a MPX filter with a defeat.
Equipped with auto repeat function and rec mute function.
Equipped with timer recording / playback mechanism.
Equipped with an output volume.
It has a headphone port.
Gold plated terminals are used for the input / output terminals.
System remote control terminal is mounted.
Head base assembly and the azimuth adjustment mechanism of the reproducing head Each head
Model Rating
Type Cassette deck
Heads 3 heads (1 erase, 1 record, 1 play)
Motor
Tape Transport :
Mechanism : DC Servo Motor (for driving capstan)
DC motor (for reel drive)
DC Motor (for Cam Drive)
Wow and flutter ± 0.06% or less WTD Peak
0.035% or less WTD RMS
Frequency characteristic 20 Hz to 21 kHz ± 3 dB (recording level -20dB, Type I/II/IV)
SN ratio (70 μ s, TypeIV) Dolby C Type NRon : 72 dB or more (400 Hz, 3% THD, IHF
A-WTD RMS)
Dolby B Type NRon : 66 dB or more (400 Hz, 3% THD, IHF A-WTD RMS)
Overall strain rate 0.8% or Less (400 Hz, 0 dB, TypeIV)
1.0% or Less (400 Hz, 0 dB, TypeI/II)
Channel separation 37 dB or More (1 kHz, 0 dB)
Crosstalk 60 dB or More (1 kHz, 0 dB)
Erasure rate 60 dB or More (100 Hz, + 10 dB)
Bias frequency 105kHz
Input terminal Line : 50mV/40k Ω
Output terminal Line : 0.5V/2.2k Ω (400 Hz, 0 dB, maximum output level volume)
Headphone : 5.0mW/8 ohm (400 Hz, 0 dB, maximum output level volume)
Pwer 100 VAC, 50Hz/60Hz
Power consumption Up to 23W
External dimensions Width 430x Height 100x Depth 320 mm (excluding projections)
Weight Approx. 5.4 kg
ได้รับการโหวต ความน่าเชื่อถือในการซื้อ-ขายสินค้า จากสมาชิกทั้งหมด 17 ท่าน
