Micro Seiki
DQ-41
Quartz
Locked PLL Direct Drive Electro Auto Lift/Stop Complete Stereo Turntable, with
Rose, Ebony or Black Wooden Base and Dust Cover.
The heart of
any turntable are its rotation and transmission systems. In both, the quality
of materials used and the precision with which they have been manufacured
determine how well the turntable performs its function.
For years,
the name Micro Seiki has been synonymous with turntables machined and
engineered of the finest materials. Micro Seiki Turntables have been designed
to advance the state-of-the-art. And win awards for elegance. These turntables
are as easy to use as they are to look at.
Electronic Auto End-Lift and Shut-Off System
Conventional end-of-record lift and shut-off systems use
some type of mechanical link between the tonearm and trip mechanism.
Seiki
turntables have a totally electronic trip system employing a Hall-Effect
sensor. Since it is devoid of all mechanical appendages or links, the tonearm
possesses all the qualities of a separate manual unit, including the ability to
track superbly at less than 1 gram.
The concept
is simple; the execution flawless. At the end of a record, the tonearm traces
the run-out grooves, increaaing its speed toward the center. The Hall-Effect
electronic circuit detects this speed change and generates the necessary
control signals. The viscous-damped lifter is activated to raise the arm and
shut off the power to the turntable. As an added protection for your records,
in the event of a power failure, the arm will lift automatically, silently and
smoothly.
Direct Drive
DC Servo Motor
Micro Seiki
DQ-41 turntables utilize a direct-driven DC servo-controlled drive
motor. The advantages of this type of motor/transmissionless system are extreme
speed stability and increassed torque.
Unaffected by temperature changes and voltage fluctuations, the
resultant wow and flutter components are less than 0,03% WRMS and the
signal-to-noise ratio greater than 63 dB JIS (75 dB DIN-B).
PLL Quartz
Speed Reference
The speed of
the DQ-41 is controlled by a quartz
reference and phase-locked-loop. It is so accurate, it negates the need for a
stroboscopic reference.
Low-Mass
Straight Tonearm with Dual Radial Bearings
A special
aluminum alloy is used to give the arm its formidable strength and
exceptionally low mass. Both qualities are needed to take full advantage of
today's supercompliant cartridges. The straight-line geometry assures the most
accurate tracking angles as well as contributing to the arm's low mass. A
pair of precision radial bearings give
the arm a lateral sensitivity of only 10 milligrams.
Even the
normally-overlooked signal connectors are of the constant-wipe type, insuring
contact maintenance at all times.
Skating
Force Cancellation
Anti-skating
is provided by a precision calibrated adjustment to axactly match vertical
tracking force.
Oil Damped
Cueing
Feather-light
contact between stylus and record groove is provided by the oil-damped cueing
system. It is silent, smooth and, at the end of a record, completely automatic.
Headshell
Thanks to
the use of carbon fibres, the headshell is as light and rigid as the arm
itself. It joins the arm with a semi-integrated plug-in system that utilizes
thick gold-plated wiping-type contacts. Oxygen-free copper leads are used to
exclude electromagnetic influences (eddy-current lossles) resulting in
exceptional transmission characteristics (improved S/N ratio)
Inert Copper
Coil
An inert,
oxygen-free, copper coil is at the heart of the 2-MF cartridge. Electromagnetic
influences (eddy current lossles) are excluded, resulting in exceptional
transmission characteristics as well as an improved signal-to-noise ratio.
Low-Impedance
Circuitry
Very low
impedance circuits are used throughout the 2-MF to enhance passage of the
highest audio frequencies. And to insure a generous output voltage, the magnet
structures are manufactured of High -Flux Alnico V.
Low Mass
Elliptical Stylus
The
specially-ground elliptical diamond stylus has an extremely small moving mass.
It not only has inherently good high-frequency capabilities, but excellent
tracking characteristics as well.
Crossed Yoke
A completely
separated, cross-shaped yoke is utilized to isolate the left and
right-channel magnetic fields. This novel design is responsible for the
2-MF's unusually high separation of more than 25 dB over all frequencies.
Genuine Wood
Base
One of the
best acoustical dampening materials known is wood. It is used as the base
material for all Micro Seiki turntables and is available in both natural
rosewood and ebony finishes.
Special feet
All Micro
Seiki turntable systems are equipped with specially-developed anti-feedback
feet. The chart below shows a comparison between the isolation provided by
conventional rubber feet and the Micro Seiki feet. As it apparent, sub-sonic
resonance is greatly reduced by the Micro Seiki design.
Specifications DQ-41
Motor
Drive
System: Quartz Locked PLL Direct-Drive
DC Servo Motor
Speed: 33-1/3 and 45 rpm
Turntable
Platter: Die-cast aluminum
Diameter
: 330 mm (13")
Weight
: 1,5 kg (3,3 lbs)
Wow and
Flutter: less than 0,025%
Signal-to-Noise
Ratio: More than 63 dB (JIS); 75 dB (DIN-B)
Tonearm
Type: Low static mass straight type
Lateral
Sensitivity: 10 mg by Dual precision
Miniature Ball Bearing
Head
Shell: H707X, Light weight, mixing
Carbon Fibres, Gold plated 4-pin plug-in connector
Effective
length: 237 mm (9-3/8")
Overhabg: 15 mm
Maximum
Tracking Error: less than 1,5
Range of
Tracking Force Adjustment: 0 -3 g
Power
Supply: 100 - 120 V, 220 - 240 V 50/60 Hz
Dimensions
(W x D x H): 468 x 375 x 155 mm
(18-3/8" x 14-3/4" x 6-1/8")
Cartidge GAS
2-MF (Optional)
Type: Moving Flux High Compliance Type
Frequency
Response: 10 - 25,000 Hz ±2 dB
Output
Voltage: 3,2 mV (1 kHz)
Channel
balance: less than 1,0 dB (1 kHz)
Channel
Separation: more than 25 dB (1 kHz)
Dc
resistance: 800 Ω
Impedance:
3 k Ω (1 kHz)
Compliance:
Dynamic
: 10 x 10¯⁶ cm/dyne
Static
: 25 x 10¯⁶ cm/dyne
Suitable
Tracking Force: 1,3 ±0,3 g
Weight: 5,4 g
Stylus
Tip: 0,3 x 0,7 mill Elliptical