MICRO MR-222
¥ 33,500 (around 1974)
Commentary
A belt drive record player developed with an emphasis on operability and functionality.
The drive system is a belt drive system with a 4-pole synchronous motor, and the belt uses polished belt.
Straight pipe integrated type is adopted for the tone arm, and even the head shell is integrated.
In addition, this arm is equipped with an inside for scan cellar, which cancels the arm being pulled inward when playing a record.
The cartridge is replaced by a unique carrier system.
An oil dump type arm lifter is adopted.
When the lifter knob is turned off → on, the power is turned on and the turntable rotates. When on → play, the tone arm slowly begins to fall onto the record surface.
At the end of the performance, turn play → on → off to stop the turntable and turn off the power.
Uses M-2100/6, which is a MM type cartridge.
In order to reduce the effect of howling due to external vibration, rubber legs with high vibration absorption effect are adopted.
It uses a low-capacity output code and has excellent high-frequency characteristics, making it possible to use it for four channels.
Model Rating
| Type | Record player |
| <Turntable portion> | |
| Drive system | Belt drive system |
| Motor | 4-pole synchronous type |
| Number of revolutions | 33 1/3, 45 rpm |
| Turntable | 30 cm aluminum die-cast, 1 kg |
| Uneven rotation | Not more than 0.08% |
| Signal-to-noise ratio | 48 dB or more |
| Tone Arm Section | |
| Type | Static balance type |
| Effective length | 222mm |
| Overhang | 15mm |
| Applicable Cartridge Dead Weight | 4g ~ 8g |
| Needle pressure variable range | 0 ~ 3g (1 Rotation) |
| Cartridge Section | |
| Type | MM Type (M-2100/6) |
| Frequency characteristic range | 10 Hz to 28 kHz |
| Output balance | ± 0.5 dB at 1 kHz |
| Channel separation | 30dB(1kHz) |
| Output voltage | 6 mv (1 khz, 3.54cm/s) |
| Load resistance | 50k Ω ~ 100k Ω |
| Optimum needle pressure | 2g |
| Needle tip | 0.6 mil diamond needle |
| Compliance | 25x10-6cm/dyne |
| Dead weight | 4g |
| Exchange needle | V-2100/6(¥3,600) V-2100/5(¥3,600) V-2100/e(¥5,600) |
| <General> | |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 19W |
| External dimensions | Width 449x Height 156x Depth 340 mm |
| Weight | 7.1kg |