Audio Database
K-8
Commentary

Stereo cassette deck with Pure Sendust head.

As with the high-end model K-9, we have adopted a low-impedance design Pure Sendust head for the recording / reproducing head.
The core material of this head is high-purity Sendust molded by Yamaha's high-vacuum centrifugal casting method. By improving the saturation magnetic flux density, input / output characteristics at high frequencies are improved.

A 2-motor separate drive system is adopted for the running system, and the outer diameter of the flywheel is 59 mm and the moment of inertia is about 1000g ・ cm.2The use of a large-scale model realizes stable driving.

The recording amplifier is an op amp, the playback equalizer is a 2-stage direct amplifier with a low-noise transistor at the first stage, and the headphone amplifier is a high-output op amp.

Equipped with Dolby NR as a noise reduction system.
This Dolby NR is linked with the MPX filter.

Feather touch full logic control is adopted.

Equipped with VU meter with 2-step peak indicator.

Remote operation is also possible by using the optional wired remote control.

Model Rating
Type Cassette deck
Tape speed (deviation) 4.75cm/sec + / - 1 per cent
Wow flutter 0.04% or Less (JIS-WRMS)
Not more than 0.15% (DIN-45500)
Fast forward and rewind time 75sec(C-60)
Recording and reproducing frequency characteristics LH (-20VU) : 40 Hz to 16 kHz ± 3 dB
CrO2 (-20VU) : 40 Hz to 18 kHz ± 3 dB
Metal (-20VU) : 40 Hz to 20 kHz ± 3 dB
(0 VU) : 40 Hz to 13 kHz ± 3 dB
Overall signal-to-noise ratio 67 dB (dolby in, metal tape)
Overall strain rate Not more than 1%
Channel separation 40dB
Input Sensitivity / Impedance Mic : 0.3mV/5k Ω
Line : 60mV/80k Ω
Output Level / Impedance Line : 340mV/1.7k Ω
Phones : 1mW/8 Ω
5mW/150 Ω
Attachment mechanism Dolby NR/MPX Filter
Tape selector switch
VU meter with two point peak indicator
Universal headphone amplifier
Input selector
Rec Mute
Quick autostop
Left and right independent rec-level volume
Timer recording switch
Pwer 100 VAC, 50/60Hz
Power consumption 23W
External dimensions Width 435x Height 112x Depth 294 mm
Weight 5.5kg
Sold Separately Remote Control Unit RS-10 (¥ 6,000)