Sony TC-K7

Name: Sony TC-K7
Brand: Sony

A high-end cassette deck with 3-step tape selection, Dolby NR, and remote capability, with F&F heads and logic-controlled operation

Overview

The Sony TC-K7 and its variant TC-K7B are professional-grade cassette decks. Sony made both. They have an advanced tape transport, tight audio specs and a full set of controls for recording and playback. The TC-K7 comes in silver and the TC-K7B in gun metallic. Both take remote operation through the optional wired RM-30 controller.

Specifications

Signal-to-noise ratio	60 dB (Dolby off, Peak Level)
Frequency response	20 Hz ~ 18 kHz
Wow and flutter	0.06% wrms
Power consumption	26W
External dimensions	Width 430 x Height 170 x Depth 310 mm
Weight	10.0kg
TC-K7 price	¥ 99,800 (around 1976)
TC-K7B price	¥ 105,000 (around 1976)
Sold Separately	Wired Remote Controller RM-30 (¥ 9,800)

Design

The TC-K7 uses an F&F (Ferrite & Ferrite) head coupled directly to the preamplifier. It has two motors: a frequency-controlled servo motor for the capstan and a high-torque motor for fast forward and rewind. Operation is logic-controlled with feather-touch buttons. The soft-eject mechanism uses an air damper. The 3-step tape selector has independent equalizer and bias settings. Other features are Dolby NR, MPX filter, memory stop/play, Rec Mute, Sony Limiter recording, auto shut-off, a front-panel stereo line-in, independent line-out and headphone level controls, and support for an external timer for unattended recording. A large VU meter and a peak level indicator are fitted. The optional RM-30 wired controller handles remote operation.