Audio Database

TA-630
Commentary

Stereo cassette deck with newly developed S & S head.

The head uses Onkyo's original S & S head.
This head uses Sendust, an excellent magnetic material, for both the gap part and core part. It is a Sendust & Sendust system unique to Onkyo. The S/N ratio is improved by forming two Sendust sheets with a laminate structure over the gap part and core material of each L/Rch, and also by using balance winding.
We have also carefully considered the gap width and depth, which are important for sound quality.
This structure not only greatly improves the dynamic range, frequency characteristics, contour effect, and other characteristics, but also achieves a high level of wear resistance equal to or higher than that of ferrite. It also has excellent characteristics in terms of weak points of ferrite such as cracking and chipping easily and temperature characteristics.

A double belt drive system double-belt drive system that uses a flat belt for the capstan drive and a square belt for the take-up reel drive. This system eliminates the influence of the take-up reel drive and ensures that the capstan always rotates stably at a constant speed.
The motor uses a PLL servo DC motor that compares the output frequency from the generator built into the motor with the reference frequency and detects the phase difference to keep the motor rotation speed constant.

Equipped with Rec Mute for one touch no-signal recording, memory counter convenient for head-out and repeat performance, timer standby convenient for absence recording and alarm playback, and bias / equalizer independent 3-stage switching.

Equipped with an INPUT selector to improve the S/N ratio during recording.

It has a built-in Dolby system.

Equipped with full auto-stop mechanism.

Equipped with an automatic mode (stereo / mono) switching microphone jack.

It is equipped with a headphone terminal that can also be used for high impedance type.

Equipped with a large VU meter with crystal tone.

Equipped with a 2-stage peak indicator to help correct the recording level.

Cassette case with special thick flat glass is used.

Equipped with AC outlet terminal.

Model Rating
Type Stereo cassette deck
Track format 4-track 2-channel stereo
Tape speed 4.8cm/s
Wow and flutter 0.048%(W.R.M.S.)
Frequency characteristic 20 Hz ~ 15 kHz (Low Noise Tape)
20 Hz ~ 18 kHz (FeCr Tape)
20 Hz ~ 18 kHz (CrO2 Tape)
S/N 58 dB (FeCr Tape)
Dolby on : 5 dB (1 kHz), 10 dB (5 kHz or more) improvement
Minimum input level Microphone : 0.3mV/600 Ω
Line : 50 mV
Input impedance Microphone : 50k Ω (200 Ω ~ 50k Ω compatible)
Line : 50k Ω
Reference Output / Impedance Line : 0.775 V (0 VU) / 50k Ω or more
Headphone : 8 Ω ~ 200 Ω
Re-Connector (DIN) Reference output : 0.775 V (0 VU)
Minimum input level : 0.1mV/k Ω
Input impedance : 5k Ω
Motor PLL servo DC motor
Heads Sendust & Sendust Head
Semiconductor used Transistor : 28
IC : 5
Diode : 26 Units
SCR : 1
LED : 2 pcs
AC outlet unswitched:200VA
Pwer 100 VAC, 50Hz/60Hz
Power consumption 8.4W
External dimensions Width 418x Height 158x Depth 297 mm
Weight 6kg
Attachment Connection code