Audio Database

The

Lo-D HT-460RM
57,000yen(around the 1979 time)

Description
 
In combining with "control center HCC-8" in which wireless remote control is possible, almost all operations are the full auto player systems in which a computer control is possible.

The uni-torque motor by a technology original with a Lo-D is carried in the motor.
A uni-torque motor is a motor which asked for perfect circular motion from the principle,A rotor magnet of a doughnut form by which the magnetizing was carried out, and 2 sets of star-shaped flat coils shifted 22^5 degrees are consisted of by eight poles, and the amount of torque generated from these two coils and magnets becomes fixed very always about which moment. This principle can be expressed with the easy numeric expression "sin2theta+cos2theta=1." In the uni-torque motor, further, the simple structure of a brushless and a slotless & coreless is adopted, and the endurance is also improving sharply.

Full auto functionalities, such as the Ohtori turn and an auto cut, are carried.

The oil dumping type arm lifter is carried.

The measures against a howling are taken by the special insulator and the vibration proof form tone arm.

A switching of a head shell is possible.


Rating of a mode
Form DD full auto player system
<Phone motor part>
Drive system DD full auto
Motor Flat form non-commutator DC servo motor (uni-torque motor)
Turntable 308mmphi aluminum die casting
Wow and flutter 0.03%(WRMS)
SN ratio 74dB(DIN-B)
<Tone arm part>
Tone arm Stylus-force Direct-reading type static balance type pipe arm
Head shell exchange system
Arm effective length 220mm
Stylus-force adjustable range 0-3g / 1 rotation (being a 0.2g step Direct reading)
<Cartridge part>
Cartridge man-month type (MT-24)
Frequency characteristic 10Hz - 25kHz
Output voltage 3mV (1kHz is level 50 cm/s)
Channel balance 1dB
Crosstalk 25dB
Stylus force 2g
The needle used 0.5mil diamond stylus (DS-ST24)
<Synthesis>
Supply voltage AC100V, 50Hz/60Hz
Power consumption 4W
Dimensions Width 450x height 141x depth of 367mm
Weight 8.3kg