Audio Database

The

Nakamichi 700ZXL
450,000yen(1980 release)

Description
 
The cassette deck which aimed at the still bigger leap by the beauty of the form while realizing the performance for which 1000ZXL is pressed.

The RAMM functionality which carries out code memory of the intelligence on the A.B.L.E. auto calibration processor which sets up a best condition automatically and an automatic head search of a music number, a playback equalizer, and noise reduction is carried to all tapeses.

The A.B.L.E. auto calibration processor carried in 700ZXL is a system which performs automatically all complicated coordinations of an azimuth, a bias current, a sound-recording regeneration level, and a sound-recording equalizer. Moreover, the data of the condition except the azimuth adjusted in this way is begun,A selection of whether to use in/out of the position (70 microseconds/120microsecond) of a playback equalizer, and the Dolbey noise reduction, or external noise reduction,Furthermore, it is a memory possible to the tapes memory switchpoint A, B, and C and D about the intelligence on a tapes position (EX/SX/ZX). When this uses a tapes of the same kind next, it becomes the completion of a coordination only by azimuth adjustment.

The double capstan scheme is adopted. With a double capstan scheme, a tapes is held by 2 sets of pinch rollers, and a capstan. Hold down tapes rocking in a head fraction, and a modulation noise is reduced, and also a wow and flutter property etc. is greatly improvable.
Paying attention to a capstan and the flutter component produced by correlation of a tapes, by changing two diameters of a capstan, the overlap of a flutter peek was avoided and the modulation Noise Figure is further improved in 700ZXL. Moreover, the fine oscillation produced from a motor etc. is also effectively absorbed by study of chassis material. The occurrence of a vibration is prevented.

In order to employ the beauty of the design of the front panel efficiently, little switchpoint of frequency in use and controls are covered by the ceiling panel. Playback of the tapes in which the RAMM code was recorded can be performed without opening this cover.

Mixing circuitry built-in of a three-point mike input (L, R, L+R) and a line input.

A Dolby NR system is built in. Since an encode and a decode can be performed, a simultaneous monitor is possible.

External connection noise reduction terminations (High-Com IBM PCN II etc.).

400Hz testing tone.

A subsonic speed, a MPX filter.

DC sound-recording / play amplifier.

Rec Mute functionality.

Timer sound-recording / play possible.

Pitch control.

High-output headphone jack.

The

Rating of a mode
Form Stereo cassette deck
Tape speed 4.8cm/second
Wow and flutter 0.04%or less Wrms
0.08%or less Wpeak
Frequency characteristic (A. B.L.E using) 20Hz-20000Hz±1.5dB
18Hz-24000Hz±3dB
(Nakamichi EX, EX IBM PCN II, SX, ZX tapes, a recording level of 20dB)
A comprehensive S/N ratio 66dB or more (3%THD)
60dB or more (0dB)
(IHF-A, Wrms, 400Hz, Dolby NR in, 70 microseconds, ZX tapes, 70 microseconds)
A comprehensive distortion 0.8% or less (ZX tapes)
1.0% or less (SX, EX IBM PCN II tapes)
(400Hz, 0dB)
Cancellation ratio 60dB or more (100Hz)
Channel separation 37dB or more (1kHz, 0dB)
Bias frequency 105kHz
Input 50mV 50kohm (line)
0.2mV 10kohm (microphone)
100mV 50kohm (noise reduction)
Output 1V (400Hz, 0dB, an output level maxima, line)
45mW (400Hz, 0dB, an output level maxima, microphone)
100mV, 2.2kohm (noise reduction)
Power source 100V 50/60Hz
Power consumption A maximum of 50W
Dimensions Width 500x height 262x depth of 250mm
Weight About 14kg
Option Remote Control unit RM-300 (28,000yen)