TRIO KP-700D
¥ 69,800 (released in 1983)
Commentary
This is a player system using a DL motor which was completed with the idea of Trio's dynamic center rock.
It uses a DL (Dynamic Center Lock) motor system that rotates several microns of oil on the side of the spindle by two herringbone grooves carved in an inverted shape on the side of the spindle and locks the spindle at the absolute center point of rotation using the pressure of this fluid.
As a result, the side surface of the spindle achieves high rigidity rotation with side pressure of 7.5 kg without touching the bearing, and the turntable achieves stable rotation without waving.
The ARCB material has been employed in the shed structure, and the tone arm support and the rotation support of the motor are accurately held. At the same time, the DL motor is directly fixed to the ARCB material to establish the absolute position accuracy of the motor support.
450 kg / cm2It uses a double lock system that locks by inertia using a large inertia turntable and simultaneously locks by quartz.
This reduces uneven rotation during actual performance when tracing the record with the needle tip.
The motor is a newly developed 3-phase switching plane drive motor with 8-pole 6-coil structure.
Since all installed coils and all installed rotors are always used, torque ripple is small and high efficiency is realized.
There was an optional weight that was sold separately.
Model Rating
Type | Dynamic Center Lock / Quartz PLL Auto-up DD Turntable |
Motor Unit | |
Drive system | Direct drive |
Motor | Quartz PLL Coreless & Slotless 3 Phase Switching, Plane Drive, DC Servo |
Starting torque | 1.2 kg / cm |
Turntable | 33 cm, 1.9 kg aluminum alloy die-cast |
Moment of inertia | 450 kg / cm2(Including Rubber Sheet) |
Number of revolutions | 33 1/3, 45 rpm |
Wow and flutter | 0.008% (FG direct reading method) |
Signal-to-noise ratio | 80dB(DIN-B) |
Tone Arm Section | |
Type | Static balance S-order pipe arm mass separation system |
Effective arm length | 245mm |
Overhang | 15mm |
Tracking error | + 1.8 ° ~ -1.0 ° |
Needle pressure variable range | 0g ~ 3g (0.1g step) |
Applicable Cartridge Weight | 2g ~ 12g (when using the attached shell) |
<General> | |
Attachment mechanism | Contactless optical detection auto lift-up mechanism Static type anti-skating mechanism Tone arm height adjustment mechanism (variable range 7 mm) |
Pwer | 100 VAC, 50Hz/60Hz |
Power consumption | 18W (Electrical Appliance and Material Control Law) |
External dimensions | Width 490x Height 162x Depth 410 mm |
Weight | 12kg |
Sold Separately : Dedicated Option Weight OW-1 (¥ 4,000) | |
Applicable Cartridge Weight Range | 12g ~ 22g (Excluding Head Shell Weight 11.5g) |
Weight | 137.5g |
Max Length | 32.8mm |
Max Diameter | 39.8mm |