เครื่องเล่นแผ่นเสียง Micro Seiki MR-411 สภาพสวยมาก เสียงดี ทำงานสมบูรณ์ Made in Japan
เครื่องเล่นแผ่นเสียง Micro Seiki MR-411 สภาพสวยมาก เสียงดี ทำงานสมบูรณ์ Made in Japan
ไปอ่านเสปค-รีวิวร์จากต่างประเทศกันก่อนครับ....
MICRO MR-411
¥ 41,000 (around 1973)
Commentary
A belt drive player aiming for harmony with stable parts.
The MB-400S which is a 4-pole hysteresis synchronous motor is adopted as a drive system,
and the aluminum die-cast 31cm turntable is driven by the belt drive.
The tone arm is equipped with MA-77mkII, which is a static balance type tone arm equipped
with a direct reading type inside force canceller.
The MM type cartridge M-2100 / 5 is carried in the cartridge.
It is equipped with a belt lock mechanism that works with the power switch.
It is equipped with an oil dump type arm lifter.
19cm plywood is used as a measure against howling, and a 9mm back plate using a player
base and reinforcement is adopted.
A low-capacity shielded wire is used to support 4ch.
Equipped with a parts box that can store accessories.
Model rating
Model Record player
<Turn table part>
Model MB-400S
Drive system Belt drive method
motor 4-pole hysteresis synchronous type
Rotation speed 33 1/3, 45 rpm
Turntable Made of 31cm aluminum die-cast, 1.4kg
Rotation unevenness 0.06% or less
S / N ratio 50dB or more
<Tone arm part>
Model Static balance type (inside force amount direct reading type)
MA-77mkII
full length 335mm
Effective length 237mm
Overhang 15mm
Offset angle 21 °
Maximum tracking error 1.5 ° or less
Compatible cartridge own weight 4g-18g
Variable stylus pressure range 0-3g (1 rotation)
Inside force canceller variable range 0-330mg
<Cartridge part>
Model MM type cartridge (M-2100 / 5)
Frequency characteristic range 10Hz-25kHz
Output balance ± 0.5dB
Channel separation 30dB (1kHz)
Output voltage 4mV (1kHz, 3.54cm / s)
Load resistance 50kΩ-100kΩ
Optimal stylus pressure 1.5g
Needle tip 0.5mil diamond needle
compliance 28x10 -6 cm / dyne
Replacement needle V-2100 / 5 (V-2100 / 6, V-2100 / e is also possible)
<Comprehensive>
power consumption 20W
External dimensions Width 500 x Height 194 x Depth 378 mm
weight 9.5 kg.