User manual
myth 
Preamplifier user manual
myth www.myth.rs  
15 / page
 8. Special features 
 8.1. Trigger Output 
 Some  power  amplifiers,  such  as  the  Myth  Power  Amplifier,  provide  a 
"trigger" input for being turned  on or off externally. Connecting the Myth 
Preamplifier  trigger  output to  trigger  input  of  a  power  amplifier  makes  it 
possible to control the operation of the power amplifier as well. 
 Once  turned  on,  the  Myth  Preamplifier  provides  a  DC  voltage  on  the 
Trigger Output. The voltage level is 15V and it is not stabilized, neither it 
is  protected  with  fuse.  Note:  Before  connecting  the  trigger  output  to  a 
power  amplifier  read  the  specification  of  the  power  amplifier  and  make 
sure that it can accept the 15 V DC to its trigger input. Also, avoid short 
circuiting the trigger output as it may stop to function properly. 
 8.2. Auto Balance 
  The Myth Preamplifier contains a microprocessor unit which controls the 
operation  of  the  Light  Dependent  Resistors  (LDR).  Due  to  different 
behavior of each LDR element, it is very important to adjust operation of 
each  LDR in  order to  equalize  volume levels of  left  and right output 
channels.  Microprocessor  unit  in  the  Myth  Lighspeed  Preamplifier  uses  a 
smart  algorithm  for  perfect  matching  the  output  levels  of  left  and  right 
output channel. The equalization is successfully done on each volume level 
available in the Myth Preamplifier, therefore there is no level difference in 
channels when listening quiet or loud music. 
 8.3. Internal Power Supply 
 The  Myth  Preamplifier  contains  two  separate  power  supply  units,  for 
digital and analog section. Both units are galvanically separated and have 
no physical contact which eliminates the interference between the two and 
takes it to the absolute minimum. 
 The analog power supply section is made with special care and it uses 
high quality filter capacitors and qualitative voltage stabilizers for the best 
performance.  Moreover,  the  output  stage  of  the  preamplifier  is  equipped 
with  current  source  buffers  the  operation  of  which  does  not  depend  on 
voltage  swings  in  power  supply,  thus  giving  even  more  dynamics  and 
musicality to the sound. 
 8.4. Internal wiring 
 Internal wiring of the analog section is taken to the minimum. All audio 
signals travel at very short paths from input to output. The analog signal 
paths  of  the  Myth  Preamplifier  are  actually  only  the  PCB  tracks.  RCA 
connectors are soldered directly to the PCB and no other wiring is used for 
this purpose. 










