YAMAHA KR-1000
¥ 99,800 (around 1982)
Commentary
A system that integrates a cassette deck, tuner and amplifier.
The cassette deck is designed with an emphasis on basic performance. The Yamaha Feather Touch Full Logic Control allows you to move directly to the next operation with soft touch.
It also features an Auto Tape Selector that automatically detects metal, chrome and normal tape types and an integrated Dolby NR.
Automatic Recording Level Control (ALC) prevents recording errors.
The tuner section is a quartz digital synthesizer tuner using a 4-bit microcomputer.
By configuring the PLL with the high tuning accuracy of the crystal resonator, stable reception without tuning deviation is realized.
In addition, a preset memory mechanism that can call up five FM/AM stations and a total of ten FM/AM stations with one touch operation, and auto-search tuning that automatically optimizes UP/DOWN tuning has been adopted.
In addition, it is equipped with functions such as battery backup that does not erase preset memories even in a power failure, and last channel memory that stores the last station received.
The amplifier section uses an IC amplifier and also has a tone control.
Equipped with a triple mixing function, you can mix 3 things, a source, an instrument and a microphone at the same time.
Model Rating
| Type | Cassette terminal component |
| Amplifier Unit | |
| Output | 40W+40W(EIAJ) 30W + 30W (20 Hz to 20 kHz, both channel drive, 8 Ω, THD 0.05%) |
| Total harmonic distortion factor | 0.05% (AUX, Tape, Tuner → SP out, 15W, 8 Ω) |
| Input Sensitivity / Impedance | Phono : 2.5mV/47k Ω MIC : 1mV/5k Ω AUX : 150mV/28k Ω |
| Frequency characteristic | 20 Hz to 20 kHz ± 0.5 dB |
| RIAA deviation | ± 0.5 dB |
| Signal-to-noise ratio | Phono:72dB AUX, Tape, Tuner : 85 dB |
| Tone control | Bass : ± 10 dB (50 Hz) Treble : ± 10 dB (20 kHz) |
| FM Tuner Section | |
| Receiving frequency | 76.1 mhz to 89.9 mhz |
| Practical sensitivity | mono:10.4dBf |
| Signal-to-noise ratio | mono:75dB stereo:72dB |
| Effective selectivity | 55dB |
| Stereo separation | 45dB(1kHz) |
| <AM Tuner Section> | |
| Receiving frequency | 522 kHz to 1611 kHz |
| Practical sensitivity | 15 μ V |
| Cassette Deck Part | |
| Truck type | 4-track 2-channel |
| Motor | DC servo motor |
| Heads | Recording : Permalloy Head Erasing : double-gap ferrite |
| Wow flutter | 0.04%(WRMS) |
| Frequency characteristic | Metal Tape : 40 Hz to 17 kHz Chrome Tape : 40 Hz ~ 16 kHz Normal Tape : 40 Hz to 15 kHz |
| Overall signal-to-noise ratio | 52 dB or more |
| <General> | |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 65W |
| External dimensions | Width 435x Height 107x Depth 388 mm |
| Weight | 9.7kg |