Technics RS-615 US

Data[edit]

General

Connections

Number of inputs:
- Line In (DIN): 60 mV / 100 kOhm.
- Microphone: 0,25 mV / 400 - 20.000 Ohm
Number of outputs:
- Line Out (DIN): 0.42 V / 50 kOhm
- Headphones (6.3mm jack): 65 mV / 8 Ohm

Technical Data

Audio heads:
- 1x super-permalloy sound head (recording, playback).
- 1x ferrite head (erasing)
Motors: 1x electronically controlled
Synchronization fluctuations: 0.1% (WRMS), ±0.2% (DIN).
Band types: I (normal band), II (CrO2), III (FeCr).
Frequency response:
- Type I: 30 - 13,000 Hz (DIN).
- Type II: 30 - 14,000 Hz (DIN)
Distortion factor:
Signal-to-noise ratio:
Signal-to-noise ratio: 50 dB (Normal), 60 dB (Dolby, from 5 kHz).
Auto reverse: no
Title search: no
Dolby: yes
MPX filter: no
Fader: no
Pitch control: no
CD synchro recording: no

Special Features

The cassette does not stand vertically, but lies after the insertion obliquely and firmly fixed in the cassette compartment, top
Soundwise the device is rather to be classified as bad (see frequency response!). That the device is not capable of reproducing frequencies above 14,000 Hz can be clearly heard in the lack of treble. This loss of high frequencies is even more noticeable when the cassette deck is used in Dolby mode.
Sound goes in order (1977), also with foreign cassettes - basic tone better than with "new" Technics, synchronization grade 2-3, lighting would like a 30 OHM resistor, with first decent front loader!HW