Audio Footsteps

Search for Lo-D / Hitachi products by Yahoo!
Search for used audio on Yahoo Auction!

HT-466
Commentary

A full auto player that uses a quartz lock unitorque motor.

The motor is equipped with a unitorque motor based on Lordi's proprietary technology.
The Unitorque Motor is a motor which obtained perfect circular motion from the principle. It consists of a doughnut-shaped rotor magnet magnetized with 8 poles and two sets of star-shaped flat coils offset by 22 ^ 5 degrees. The torque generated by these two coils and magnets is constant at any moment. This principle is called sin2Θ + cos2Θ = 1 ". The Uni-Torque Motor also adopts a simple structure that is brushless, slotless and coreless, and has significantly improved durability.
Stable rotation is obtained by applying crystal control (quartz-locked PLL servo) to this motor, which is hardly affected by voltage fluctuation, aging and temperature change.

Equipped with a full auto mechanism that adopts a motor exclusively for arm drive.
It is designed so that the full automatic mechanism does not interfere with manual operation.

An opto-electronic auto-return detection mechanism has been adopted in which no side pressure is applied by return detection and no extra distortion is generated during record performance.

It uses a gimbal support tone arm with excellent tracking performance for light needle pressure performance.
In addition, the head shell uses a head shell containing glass fiber.

Model Rating
Type Quartz Lock DD Full Auto Player System
Phono Motor Section
Drive system Quartz Lock DD Full Auto
Motor Flat type commutator DC servo motor (unitorque motor)
Turntable 310 mm φ Aluminum Die-cast
Constant speed 33 1/3, 45 rpm
Speed change Electronic control system
Wow and flutter 0.025%(WRMS)
Signal-to-noise ratio 78dB(DIN-B)
Tone Arm Section
Tone arm Needle pressure direct reading static balance type pipe arm
Head shell replacement system
Effective arm length 220mm
Overhang 15mm
Tracking error 2 ゜
Needle pressure adjustment range 0 ~ 3g/1 Rotation (Direct Reading in 0.1g Steps)
Applicable Cartridge Weight 4g ~ 10g
Cartridge Section
Cartridge DM Type (MT-30)
Frequency characteristic 10 Hz to 25 kHz
Output voltage 3mV
Channel balance 1dB
Crosstalk 25dB
Needle pressure 2g
Needle to be used DS-ST30
<General>
Power supply voltage 100 VAC, 50Hz/60Hz
Power consumption 4W
External dimensions Width 435x Height 128x Depth 375 mm
Weight 5.5kg