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IMPORTANT SAFETY INFORMATION 

 

 

Explanation of symbols used in this manual and on the 

product: 

 

  

This  symbol  is  intended  to  alert  the  user  to  the 

presence of uninsulated dangerous voltages within the 

enclosure  of  sufficient  magnitude  to  cause  electric 

shock. 

 

  

This  symbol  is  intended  to  alert  the  user  to  the 

presence  of  important  maintenance  and  servicing 

information in the instruction and service manuals. 

 

 

WARNINGS 

SHOCK  HAZARD.  DO  NOT  OPEN  –  NO  USER 
SERVICEABLE PARTS. 

TO  AVOID  THE  RISK  OF  ELECTRIC  SHOCK,  DO  NOT 
REMOVE  THE  BASS  DRIVER,  THE  REAR  AMPLIFIER 
PANEL  OR  THE  FILTER  NET-WORK  HOUSING  ON  THE 
BOTTOM OF THE SUBWOOFER. 

NO  USER  SERVICEABLE  PARTS  INSIDE.  REFER  ALL 
SERVICE TO A QUALIFIED SER-VICE PROFESSIONAL. 

FOR CONTINUED PROTECTION AGAINST THE RISK OF 
FIRE, REPLACE THE PROTECTION FUSE ONLY WITH  

Summary of Contents for Principal Grand

Page 1: ... suggestions If you find in your listening environment that a slightly different adjustment in setup results in a more enjoyable sonic picture then follow it All rooms are different and thus we cannot give an accurate single installation instruction guide that will cover all possible environ ments Please feel free to contact us or your local distributor with any setup related questions It is our c...

Page 2: ... to the presence of important maintenance and servicing information in the instruction and service manuals WARNINGS SHOCK HAZARD DO NOT OPEN NO USER SERVICEABLE PARTS TO AVOID THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THE BASS DRIVER THE REAR AMPLIFIER PANEL OR THE FILTER NET WORK HOUSING ON THE BOTTOM OF THE SUBWOOFER NO USER SERVICEABLE PARTS INSIDE REFER ALL SERVICE TO A QUALIFIED SER VICE PROFE...

Page 3: ... all warnings on the subwoofer and in the operating instructions 2 Follow instructions Follow all operating in stallation and use instructions 3 Damage requiring service The product should be serviced by qualified personnel if a The product does not appear to operate normally or exhibits a marked change in operation b The power cord or plug has been damaged c Objects or liquid has fallen into the ...

Page 4: ...ar water for example near a bath tub or in a wet basement nor near a swim ming pool 8 Wall or ceiling mounting Principal Grand is neither suitable for mounting into the wall nor for mounting on the ceiling If you choose a position on the wall or on a shelf it will be necessary that the subwoofer be properly secured into position Otherwise the subwoofer could fall due to the exceptional vibrations ...

Page 5: ...Grand this will vary depending on the voltage in the country you purchased the unit in 12 Power cord protection Route the power cord so that it is not likely to be walked on or pinched by items placed on or near it paying particular atten tion to the plug end power socket and the input of the subwoofer itself 13 Lightning storms Unplug the Principal Grand as well as the rest of your entire audio v...

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Page 7: ...hono RCA Plug connection is used for the subwoofer output of an audio video processor receiver it does not matter which either left or right input you use If you have a need for additional gain it may be necessary to use a Y Adapter to use both Left and Right labeled inputs 6 Adjustable Crossover Frequency Control The crossover point is determined by listening Where this ultimately sets up best is...

Page 8: ...ut when combined with the loudspeakers After finding this stronger or louder position it may be necessary to lower the overall volume of the Principal Grand 9 On Auto Switch The On Position places the Principal Grand in an always On position while the Auto Position automati cally places the Principal Grand into standby when there is no signal for 15 minutes While in the Auto Position the Principal...

Page 9: ...onnection scheme with your retailer and purchase the appropriate cable choice 3 Connect the Principal Grand to the AC power outlet 4 Turn on the Master Power Switch Note If the power LED does not immediately illuminate please check that the On Auto switch is in the Auto position If this is the case it will be necessary for the subwoofer to receive and audio signal before the LED will illuminate Fo...

Page 10: ...w bass A recording with a plucked double bass properly recorded should work quite well for this process a Volume Make necessary adjustments so that the volume of the subwoofer is similar to that of the main loudspeakers It is possible that you will have to turn the Principal Grand s gain control to near maximum The choice of operating range of this special gain control we have used was determined ...

Page 11: ...will produce a slightly warmer bass contour while the opposite of having the volume a bit higher but a crossover setting that is slightly lower will produce a faster and more powerful lower bass output This final fine adjustment process is of personal preference and thus listening to a couple different pieces of music should be used for this step Note It is usually better to use a lower crossover ...

Page 12: ...r Carbon filled cone manufactured by ScanSpeak designed by Vienna Acoustics Amplifier 300 Watts SMD Technology Inputs 2 High Level 1 000Ω 2 Line Level via Phono RCA Plugs Controls Power on Standby standby 1watt 0 180 Phase switch Variable crossover control Variable gain control Weight 26kg 58lbs Dimensions w x h x d 385mm 15 25 x 495mm 19 5 x 385mm 15 25 including spikes ...

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