Audio Database
MR-411
Commentary

Belt drive player with stable parts for harmony.

A 4-pole hysteresis synchronous motor, MB 400 s, is used for the drive system, and an aluminum die-cast 31 cm turntable is driven by a belt drive.

The tone arm is equipped with MA-77mkII which is a static balance type tone arm with inside four scan cellar of direct reading system.

The cartridge is equipped with M-2100/5 which is a MM type cartridge.

Equipped with a belt lock mechanism linked to the power switch.

Equipped with an oil dump type arm lifter.

As a countermeasure against howling, 19 cm plywood is used, and a 9 mm back plate using a player base and reinforcement is adopted.

A low-capacity shield wire is adopted to support 4 ch.

Equipped with a parts box that can store accessories.

Model Rating
Type Record player
<Turntable portion>
Type MB-400S
Drive system Belt drive system
Motor 4-pole hysteresis synchronous type
Number of revolutions 33 1/3, 45 rpm
Turntable 31 cm aluminum die cast, 1.4 kg
Uneven rotation Not more than 0.06%
Signal-to-noise ratio 50 dB or more
Tone Arm Section
Type Static Balance Type (Inside Force Amount Direct Reading Type)
MA-77mkII
Total Length 335mm
Effective length 237mm
Overhang 15mm
Offset angle 21 ゜
Maximum tracking error 1.5 degrees or less
Applicable Cartridge Dead Weight 4g ~ 18g
Needle pressure variable range 0 ~ 3g (1 Rotation)
Inside for Scan Seller Variable Range 0 to 330 mg
Cartridge Section
Type MM Type Cartridge (M-2100/5)
Frequency characteristic range 10 Hz to 25 kHz
Output balance ± 0.5 dB
Channel separation 30dB(1kHz)
Output voltage 4 mv (1 khz, 3.54cm/s)
Load resistance 50k Ω ~ 100k Ω
Optimum needle pressure 1.5g
Needle tip 0.5 mil diamond needle
Compliance 28x10-6cm/dyne
Exchange needle V-2100/5 (V-2100/6, V-2100/e also possible)
<General>
Power consumption 20W
External dimensions Width 500x Height 194x Depth 378 mm
Weight 9.5kg