Audio Database

K-105
Commentary

Auto-reverse deck series auto-reverse deck.

The Oatley berth mechanism uses a rotary head system to ensure the best matching between the recording / re-amplifier and the head.
A high-precision aluminum die-cast head loading mechanism is used for the rotating part that requires precision, and oilless metal is used for the bearing part to achieve high precision and high durability.

The circuit design uses the S. T. A. R. circuit that is used in the Brid series amplifiers.
This system achieves smooth signal flow by completely eliminating the sharing of the power feed line and ground line in the circuit, and improves the S/N ratio in the sense of hearing.

As a noise reduction system, Dolby B and Dolby C are installed.

The control section is computer-based and equipped with functions such as music search, intro-scan and blank skip.

The recorder / re-head uses a Hexaram recorder / re-head with six layers of hard permalloy laminated to improve magnetic characteristics.
Also, a dual-gap ferrite head is used for the erasing head.

Model Rating
Type Cassette deck
Track format Four track, two channel, Oatley berth system
Head configuration Recording : rotary auto-reverse head
Erasing : double-gap ferrite heads
Tape speed 4.75cm/sec.
How to : Logic control system
Wow and flutter 0.05% or less (W. R. M.S.)
Frequency characteristic Normal : 20 Hz to 17 kHz
Chrome : 20 Hz to 18 kHz
Metal : 20 Hz to 19 kHz
Distortion factor Not more than 0.7%
Signal-to-noise ratio Dolby C, Metal : 71 dB or more
Dolby C, normal : 70 dB or more
Output 500mV/1k Ω
Power consumption 18W
External dimensions Width 438x Height 114x Depth 307 mm
Weight 4.5kg