DQX-500
FEATURES:
350 mm
diameter platter with 600 kg×cm² moment of inertia and quartz lock servo PLL DC
motor.
The
platter used for the DQX-500 features an extremely high moment of inertia of
600 kg×cm², and this helps suppress fluctuations in the pulsive mechanical
amplitude caused by the sound grooves on the record. As far as the static
characteristics are concerned, the quartz lock servo system guarantees an
outstanding control speed stability. However, it cannot be said to control
perfectly the rendom transient load generated by the reproduction of the record
sound. In particular, turntables rely for the most part on their platter’s
moment of inertia to deal with disturbances in the high frequency range
components for an overall improvement in the characteristics. Therefore, based
on the basic servo control system, the static load fluctuations are absorbed by
the quartz lock PLL system, and the dynamic load fluctuations are improved by
the moment of inertia.
Stand-by lamp for easy rated speed checks .
The
quartz lock servo PLL system provides a rotational speed with no deviation from
the rated 33-1/3 rpm and 45 rpm speeds. There is no need for a strobe and so
this has been abandoned in favor of a simple design.When the platter with its
high moment of inertia reaches the rated speed the stand-by lamp goes off.
This action allows you to check whether or not the platter is revolving
at the right speed.
Resonance-free monocoque frame.
The
phonomotor and tonearm feature a sturdy integrated construction together with
the metal frame composed of a three-legged configuration. This means that the
turntable functions as a mechanical circulation system so that it is hardly
affected at all by external vibration.
Micro's
engineers got down to the bottom of the resonance modes caused by the
conventional box-shaped construction and came up with a crystal-clear
reproduced sound. This is design which is compact achieves an excellent weight
balance and features absolutely no dead space. The motor shaft bearings are
coupled to the frame with the reinforcement and there is plenty of mechanical
strength to support the high inertia which accompanies the rotation of this
heavyweight platter. All these features make for an extremely distinct sound
image.
Outer
power transformer power supply for an improvement in the signal-to-noise ratio.
In order
to handle the very faint signals which are transmitted through the cartridge
turntables have been beset with the problem of induction caused noise from the
AC power source. If you use a moving coil cartridge, the flux generated by a
power transformer, for instance can sometimes be the cause of hum. This is why
the DQX-500 features a separate power transformer. It is designed to
accommodate all the controls. You can therefore use the transformer as far away
from the cartridge and tonearm as possible.
Specifications
Turntable Section
Drive System: Direct Drive
Motor: Quartz Locked PLL DC servo motor
Speeds: 33⅓ and 45 rpm
Turntable
Platter: 350 mm (13¾ inch) diameter, aluminum diecast platter
Platter Weight: 2,6 kg (5,72 lbs)
Moment
of Inertia: 600 kg/cm²
Wow and
Flutter: less than 0,02%
S/N Ratio: More than 63 dB (JIS) 75 dB (DIN-B)
Power: 117 V, 60 Hz (USA , Canada); 220 - 240 V,
50 Hz (other areas)
Power
Consumption: 5 W
Tonearm Section
Type: Dynamic balance
Effective
Length>: 237 mm (9⅜
inch)
Overhang: 15 mm (19/32 inch)
Maximum tracking
error: Less than 1,5⁰
Usable cartridge
weight: 4 - 12 g (0,14 - 0,42 oz)
Range of tracking
force adjustment: 0 - 3 g
General
Dimensions (W x H x D): 410 x
139 x 350 mm (16⅛ x 5½ x 13¾ inch)
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