Lo-D HT-354

Commentary

An auto player that uses a 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.

Equipped with auto return and auto cut auto mechanisms that enable reliable tracing even with light needle pressure cartridges.

Equipped with anti-skating mechanism, strobe with neon lamp, and oil dump type arm lifter.

Model Rating

Type	DD auto-player system
Phono Motor Section
Drive system	DD 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
Speed adjustment range	33 1/3rpm : + / - 3% 45 rpm : + / - 4% (Common adjustment for both speeds)
Wow and flutter	0.03%(WRMS)
Signal-to-noise ratio	75dB(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	MM Type (MT-24)
Frequency characteristic	10 Hz to 25 kHz
Output voltage	3 mv (1 kHz, 50cm/s horizontal)
Channel balance	1dB
Crosstalk	25dB
Needle pressure	2g
Needle to be used	0.5 mil Diamond Needle (DS-ST24)
<General>
Power supply voltage	100 VAC, 50Hz/60Hz
Power consumption	4W
External dimensions	Width 435x Height 128x Depth 375 mm
Weight	5.5kg