Magenta TT10 Manual de usuario
ADJUSTING THE MAGENTA TT10 TURNTABLE
ADJUSTING THE MAGENTA TT10 TURNTABLE
This drawing of the stereo groove may look frightening. Yet...
...if you stick to the basic adjustments, you can enjoy the sound of analog recordings engraved in the vinyl record.
It is not at all necessary to make things complicated. Start by adjusting down force and bias, put on a record and listen. From there you can
refine the set up and adjustments if you want the highest quality in sound.
If the adjustments are not correct, even the most expensive turntable cannot fulfill its promise: the best possible sound reproduction
PREAMBLE
Why not have a turntable next to your CD Player in your set up?
The sound of records can be enlightening, records are authentic, and records can be fun.
Compared to the modern digital formats, the analogue LP record, with its signal engraved in a vinyl disc, may look poor at first glance.
However, do never forget that it is still the only medium (apart from the reel to reel tape recorder) that can contain the most complete and
most structured signal providing great dynamics, having the widest frequency band attainable, and having the most refined detail over the
ADJUSTING THE MAGENTA TT10 TURNTABLE
entire audio spectrum and far beyond, which no other format can deliver.
The analog LP is not restricted to 16 bits and a limited frequency band, but has 700 bits - so to speak - and the minute upper harmonics which
digital formats are missing. The simple reason is that the original LP is analogous in nature.
Or, to be more precise: analogous to nature.
PERFORMANCE VERSUS CD
If your CD outperforms your analog setup, than you do not have the right combination of components. In other words you forgot about
"system building". There are some general and specific do's and don'ts. Here are a few:
- Look for voluptuous sound, yet well controlled, look for realism.
- Look for a good, spacious mid band.
- Do not connect low efficiency loudspeaker systems to a 10 or 25 Watt tube amplifier or to a high current amplifier, but use a power amplifier
delivering current stored in a large reservoir of Micro Farads.
- Match cartridge and arm properly: mass (weight of the arm) in relation to compliance.
- Choose the right preamplifier to match the impedance and/or capacitance of your cartridge. Make the necessary adjustments.
- Carefully position your loudspeakers in the listening environment.
- Follow your taste and ears. Go to live concerts of classical music and jazz. There you will find that high-end does not exist in reality, only
realism.
- Do not take the PA set-up during a live concert of your favorite rock band as a reference. Because that sound is no reference at all. Many of
those experts who move the faders have a hearing problem. And soon you may have one too.
- Be well advised, but forget about the hype which surrounds so many components and is repeated by so many and far too often.
- Do not be distracted and confused by a member of a forum who says that this page gives - in his opinion - at some instances incorrect advice.
Only believe him if he points out what is incorrect. You will notice that he never does.
Even if new and more complex and high resolution digital formats are being developed and there are no appropriate players for
these formats, the recording can be engraved in a vinyl record and can be fully enjoyed. Even hundred years from now.
ADJUSTING THE MAGENTA TT10 TURNTABLE
It is of the utmost importance to adjust the turntable with arm and phono cartridge correctly.
Place the turntable on a strong cabinet, in an audio rack or on a special construction that is bolted
to the stone wall of the listening room. These supports should be level.
See to it that the turntable is perfectly level also. This is essential to minimize wow and flutter.
It is also a prerogative for the proper functioning of the phono cartridge and the arm. Only if the
turntable is level the down force and bias (side thrust) can be adjusted correctly.
LEVELING THE TURNTABLE
ADJUSTING THE MAGENTA TT10 TURNTABLE
ADJUSTING THE MAGENTA TT10 TURNTABLE
Unscrew for leveling adjustment
The TT10 To check if you have done it right just push the spindle
down with your index finger, the platter should go down and come
up always staying level. That means that the platter should not
rock or wobble. If it does you have to make new adjustments.
Adjusting is done by unscrewing the tips of the cones, the base of
the motor and the third feet is fix, so all adjustments should be
referred to the motor base.
The motor is suspended to avoid vibration transmission to the
main frame.
VERTICAL TRACKING ANGLE
INITIAL ADJUSTMENT
Check whether the arm and the head shell are parallel to the
record. Most manufacturers of cartridges take care to mount the
tip and cantilever in such a way that a Vertical Tracking Angle of
round and about 20 degrees is achieved when the arm is parallel
ADJUSTING THE MAGENTA TT10 TURNTABLE
to the record. The standard today is 20º. Vintage cartridges from
the nineteen sixties for instance have a tracking angle of 15º.
The final VTA adjustment will be done later after you have
adjusted the azimuth and down force and bias have been precisely
set.
The VTA adjustment is possible thanks to three screws in the base
of the arm.
The Margules A1.2 TT10 arm is unipivot, It is important that the
tonearm is free and can have movement to the sides up and
down.
If the base is not level properly you might have problems with the
arm elevator or restrictions the movement.
AZIMUTH ADJUSTMENT
Now check the cartridge seen from the front. It should be
perpendicular to the record. This is easily checked using a small
mirror. A precise way of measuring the azimuth is by using a test
record and a voltmeter. But this can only be done after the correct
down force and bias have been adjusted.
In Margules Arm this can be adjusted by rotating the eccentric
weight in the back of the arm.
ADJUSTING THE MAGENTA TT10 TURNTABLE
AZIMUTH REPLACEMENT STYLUS
If you have bought a replacement needle, check if the tip is really
well mounted. Check the cantilever from the front with a
magnifying glass. The cantilever should be perpendicular to the
cartridge body. The tip should be in line with the cantilever. It is a
good practice to take the small art director's magnifying glass with
you to the shop and insist that you check before you pay. A needle
tip which is out of line can not read the stereo groove. Just to be
sure.
ADJUSTING THE MAGENTA TT10 TURNTABLE
LATERAL TRACKING ERROR
While engraving the laquer disc (from which the matrix is made), the cutter head moves laterally from the outside of the lacquer to the inside. At
all instances the cutter diamond makes a 90 degree angle with the groove it has cut. This movement can be imitated by a tangential tonearm.
Most tone arms however are not tangential or parallel tracking tonearms but radial arms which move along a fixed radius. The result is that
during play the lateral angle varies. The diamond of the cartridge does not completely mimic the path originally made by the cutter head.
Use the gage supplied with the turntable and the instructions in it or in the next paragraphs you will find interesting information.
OVERHANG
When using a radial arm, there is practically at every instance a
tracking error which results in a time difference between the signals
of the left and right channel. Just a few milliseconds! Therefore it is
necessary to mount the phono cartridge in the tonearm in such a way
that this time difference is kept to an absolute minimum.
Adjusting the arm in accordance with the specified overhang (and of
course the distance between spindle and arm base as supplied, can
give the least tracking error.
ADJUSTING THE MAGENTA TT10 TURNTABLE
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