Simaudio 260D Manual Do Utilizador

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Simaudio Ltd. has been designing and manufacturing innovative, leading-edge 
audio  and  video  products  since  1980.  MOON  products  have  been  globally  
recognized  for  their  world-class  performance,  garnering  numerous  accolades 
for  this  outstanding  achievement.  Our  products  are  engineered  and  built  in  
Canada,  utilizing  advanced,  efficient,  “green”  assembly  techniques  with  strict 
quality  control.  Furthermore,  our  manufacturing  processes  are  part  of  our  
philosophy,  whereas  the  high  quality  and  long-life  of  MOON  products  are  the 
best way to preserve our environment, avoiding premature obsolesence. MOON  
products  meet  or  exceed  all  international  requirements  for  safety,  performance 
and  durability.  At  Simaudio,  great  music  matters.  However,  great  music  for  a  
lifetime matters most.
Technical Information
The MOON 260D use a proprietary 
transport mechanism employing in-house 
developed hardware and software. This 
mechanism, which we named M-ProDrive
is comprised of following components: the 
disc drawer; the optical laser pickup; the 
dual-rail apparatus that holds this pickup, 
the motor which spins the disc; the disc po-
sitioning and clamping assembly, the frame 
which all these components are mounted 
onto, and finally, both the controller and 
servo software.
Featuring PLL syncronization, the MOON Alpha Clocking System achieves 
extremely accurate phasing and much better than average recovery of 
information from the compact disc. As well, digital clock-signal integrity is 
dramatically improved. The result is extremely low jitter in the order of less than 
10 picoseconds RMS which means the elimination of digital fatigue in the high-
frequency region, and therefore a more analog-like, yet very realistic sonic 
signature. The significant differences, with respect to jitter, between a digital 
clock signal from the MOON Alpha Clocking System (upper diagram) and a 
typical digital clock signal (lower diagram):
Accurate data retrieval ensures more lifelike 
sonic reproduction
High-frequencies never sounded so natural ... cymbals 
so life-like that you’ll want to reach out and touch them 
... a genuinely non-fatiguing sound without even a 
hint of digital grain.
When we developed this mechanism, several key design considerations were 
implemented to enhance sonic performance: Improved stability of disc’s rota-
tional speed was achieved through the use of a very lightweight disc platform. 
Our disc clamping mechanism minimizes vibrations and uneven rotation. The 
optical pickup assembly is surrounded by small magnets and housed in an 
enclosure to dramatically improve tracking. This enclosure is mounted on the 
aforementioned dual-rail apparatus which prevents any off-axis tilting when 
the lens moves. All of these features combine to ensure quieter disc rotation.
 
Some of the other advantages realized by this manufacturing process for the 
M-ProDrive include:
When the width of the above digital impulses (A, B, C, D, E, F) are identical, then 
the phasing between the impulses (1, 2, 3, 4, 5) will all have same width  
(black vertical bars) , resulting in extremely low phase errors.
When the width of the above digital impulses (A, B, C, D, E, F) are not equal, 
then the phasing between the impulses (1, 2, 3, 4, 5) will vary noticeably in 
width (
red vertical bars
), resulting in significant phase errors. 
   Reduced jitter
   Better handling of errors resulting from  
     defective or dirty discs
   Improved mechanical reliability
   More accurate data retrieval
   A facility for firmware upgrades