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Start with the controls in the following positions: 
Crossover frequency: middle position (LOW PASS knob) 
Volume: start at the middle position (12h) (VOLUME knob) 
Phase: 0° (PHASE switch) 
 
6.  Listen:  While  playing  music  that  has  an  abundance  of  consistent  low  bass,    adjust 
the output level of  SUBSON  until  both  the main  
speaker’s  and  the  subwoofer’s  bass  are  clearly  audible.  [Attention:  It  may  be 
necessary, and in fact normal, that you have to turn the VOLUME control close to, or 
even  at,  its  maximum  level.  The  gain  structure  of  the  SUBSON  was  developed  to 
produce the best sound, and that it may be necessary to adjust the VOLUME knob to 
its maximum level.] 
Then, check for phase consistency by switching from 0° to 180° using the  
PHASE switch. Leave the PHASE switch in the position that achieves clearly louder bass 
output. 
 
7.  If  SUBSON  is  not  loud  enough,  it  is  possible  that  your  main  loudspeakers  do  not 
supply enough mid-bass. In that case the crossover frequency point (LOW PASS knob) 
may need to adjusted to the highest frequency (90 Hz), in order to achieve maximum 
mid-bass output from the subwoofer.  
 
8. If SUBSON was loud enough (before step 7), turn the crossover (LOW PASS knob) 
towards  the  lowest  frequency  (50  Hz)  and  readjust  the  output  volume  to  the  point 
where  the  main  speakers  and  the  subwoofer  are  balanced  or  equal  in  output.  At  this 
point,  slowly  raise  the  crossover  frequency  (LOW  PASS  knob)  until  a  seamless 
integration, or transfer of output, between main speakers and subwoofer is achieved. 
 
General setup tip:  
It  is  usually  best  to  crossover  as  low  as  the  bass  characteristics  of  the  partnering 
loudspeakers  sited  in  the  room  will  allow.  This  will  result  in  achieving  the  lowest 
possible  bass  extension.  However,  one  of  the  advantages  of  the  installation  of  a 
subwoofer is the ability to tailor the bass output of the system to the needs and tastes 
of the listener. Therefore, feel free to experiment with a variety of settings until one is 
found that is satisfactory. 

 
 
 
 
 

ACCESSORIES: 

 
 
POWER CORD: 1 pc. 
 
FUSE: 1 pc. 
For replacing the fuse inside the socket (rear side of SUBSON). 
 
GLOVES: 2 pcs. 
For protecting SUBSON against fingerprints. 
 
 
 
 

Summary of Contents for SUBSON

Page 1: ...SUBSON ...

Page 2: ...information in the instruction and service manuals WARNING SHOCK HAZARD DO NOT OPEN TO AVOID THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THE BASS DRIVER OR THE AMPLIFIER ON THE BOTTOM SIDE OF SUBSON NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH THE CORRECT TYPE OF FUSE 1 ADDITIONAL FUSE FOR REPLACEMENT I...

Page 3: ...et basement or near a swimming pool 8 WALL OR CEILING MOUNTING SUBSON is neither suitable for mounting into the wall nor for mounting on the ceiling since one of the aluminium parts is working as heatsink If you choose a position on the wall or on a shelf for SUBSON the subwoofer must be firmly secured into position Otherwise the subwoofer could fall down because of vibrations causing it to move o...

Page 4: ...n unused for long periods of time 14 CLEANING The product should be cleaned only as recommended later in this instruction manual 15 RETAIN INSTRUCTIONS Retain the safety and operating instructions for future reference 1 power cord input 2 fuse socket 3 power switch ...

Page 5: ...witch position that results in more bass by testing with several bass heavy music tracks 9 on position SUBSON always on auto SUBSON turns on when music is detected Recommended AUTO switches off the subwoofer after 15 minutes without a music signal When music is played again SUBSON returns to play mode automatically HOW TO PREPARE SUBSON FOR OPTIMAL SOUND PERFORMANCE 1 To avoid fingerprints on the ...

Page 6: ...LOW PASS knob may need to adjusted to the highest frequency 90 Hz in order to achieve maximum mid bass output from the subwoofer 8 If SUBSON was loud enough before step 7 turn the crossover LOW PASS knob towards the lowest frequency 50 Hz and readjust the output volume to the point where the main speakers and the subwoofer are balanced or equal in output At this point slowly raise the crossover fr...

Page 7: ... a soft damp cloth Do not use any chemical detergents Should spots or stains appear clear water can be used to gently remove them Should the bass driver become dusty it is safe to use a soft brush or cloth to clean the woofer Happy Listening Your Vienna Acoustics Team ...

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