Vienna Acoustics Speaker Concert Grande User Manual

CONCERT GRAND SERIES  
OWNER´S MANUAL  
Now, as always, speakers form the most important link in a stereo system. Therefore,  
they should be positioned and connected with care. It is our hope that the information  
contained within this manual will help you in setting up your new speakers and  
provide you with many years of listening pleasure.  
Your Vienna Acoustics Team  
CABINETS  
Our speaker designs feature massive and inert cabinet construction. Vienna Acoustics  
cabinets are designed with the latest computer modelling techniques and use a  
combination of amorphous materials in order to ensure that they are both stiff and  
well damped. Additionally, our designs feature massive, but narrow/slim, front baffles  
in order to promote accurate imaging. The combination of precise build construction  
using furniture grade finishing techniques and complex internal damping produce  
designs capable of accurately rendering music.  
All speakers are equipped with spikes, and in some cases bases. Please use them and  
care for maximum stability by adjusting the spikes. To protect your wooden floor all  
base/spike sets include spike-plates.  
 
BURNING OR BREAKING IN NEW  
LOUDSPEAKERS  
Your loudspeakers contain a large number of precision built moving parts. These parts  
require playing time initially to develop their maximum smoothness and extension.  
Very audible improvements can be observed during about 30 hours of playing.  
Additional improvements will be evident after 100 hours of playing time, at which  
point the speakers have reached their full musical potential.  
POSITIONING  
Room acoustics and positioning of the speakers within the room have an important  
effect on sound quality. To find the optimal position for your speakers we offer the  
following hints:  
FREE AIR SET-UP  
If the room is large and space permits, allow a minimum of 1 meter away from the  
rear wall (behind the speakers). Small movements of the speaker forwards and  
backwards will establish where a speaker sits most comfortably. Find the location that  
gives a full balance without sounding heavy.  
Remember, in free air set-up the distance from the rear wall determines how low the  
speaker will go in a room and also the depth of image. Positioning too close to a rear  
wall may boost the middle bass frequencies  
and rob the speaker of some  
transparency and precision. In general it is best to avoid corner placement of speakers  
since the bass tends to become exaggerated and corners rarely are an optimal  
placement for image quality.  
NEAR WALL POSITIONING  
Many people will simply find it undesirable or disruptive to place speakers in "free  
space", that is well away from the back wall. Vienna Acoustics loudspeakers may be  
set-up close to a rear wall, though keep in mind that less toe-in, as described below,  
will probably be needed. When working close to a rear wall, even the tiniest  
movements will have a relatively important effect on sound quality. Work slowly and  
methodically, following the instructions below and good sound quality can be achieved.  
 
DISTANCE BETWEEN THE  
SPEAKERS AND TOE-IN  
Most stereo systems are set-up with their speakers too close together. As a rough  
guideline, the distance between spea-kers should be about 70 % of the room width as  
a starting point, assuming that your speakers are aiming down the length of the room.  
Too close together they will create "ghost" images, double images that blur clarity and  
focus. Too far apart they will begin sounding thin and in extreme cases, will create  
separate left and right soundstages. Move them inwards and outwards, again in small  
movements as though you were adjusting the image on a pair of binoculars until a  
single well-unified image is obtained.  
Toe-In: In an ideal room, the speakers may be set-up so that the speakers fire directly  
forward. For the rest of us, some degree of toe-in, that is rotating the speakers  
cabinets until they point at the listener is desirable. Toe-in reduces sidewall reflections  
of the mid and upper frequencies. Though one might reasonably conclude that aiming  
a speaker at the listener would result in a brighter sound, this is mostly not the case.  
Toeing a speaker inward will result in a smoother, warmer and usually more focused  
sound.  
 
Important Tip:  
The distance between speakers is interrelated to the degree of toe-in. If a speaker  
loses clarity from toeing in, try increasing the distance between them slightly. This will  
have the effect of "opening up" the speaker and restoring clarity.  
ROOM TREATMENT  
Good sounding rooms have a well-balanced acoustic. This does not mean that your  
home should look like a recording studio. Commonly found furnishing such as  
bookshelves, carpeting and furniture all exhibit beneficial amount of ab-sorption and  
dispersion. Rooms with little furniture, carpeting or other surfaces will demonstrate  
poor damping and will produce a hard, bright sound.  
As a general rule, it is helpful to have more of these sorts of things in the space  
immediately around the speakers than scattered throughout the space. A thick carpet  
or area rug mounted between your listening position and the speakers is of  
tremendous benefit in controlling reflections off the floor. Tapestries, hanging rugs  
and/or drapes on the side walls hung slightly ahead of the speaker position will damp  
reflections off these surfaces.  
MAINTENANCE  
Your speaker cabinets can be cleaned periodically with a soft, slightly damp cloth. It is  
not necessary to wax them. Our cabinets feature a smooth but strong finish. Still,  
please keep them out of direct sunlight and out of heat, since the colour of the veneer  
would pale. Should the bass drivers become dusty, it is safe to use a soft brush to  
clean the woofers.  
* Under NO circumstances should you attempt to clean dust from the tweeter. Doing  
so will damage the delicate silk domes.  
! Additional Instructions for MOZART Grand !  
Please take note of an important feature of Mozart: We have added 2 pieces of BCUs  
which can be used to close one or both reflex-ports on the rearside of the speaker.  
This is an important room tuning aid: As Mozart has unparalleled low bass capabilities  
compared to its size, some rooms can create problems with such low frequencies. By  
closing the reflex-ports low frequencies are reduced in amplitude and thereby  
matching bass-boosting rooms.  
As always please start with careful positioning of the speaker. This will enable true  
high end bass in such a superior depth and quality only being known of bigger and  
much more expensive speakers. Various positions will make it possible to compensate  
the many bass-modes each room has, and these bass-modes are crossing the room  
quite close to each other that´s why positioning works. Some rooms however are very  
difficult to handle (or your preferred position is pre-determined), in these cases the  
BCUs are wonderful room tuning devices.  
Happy Listening!  
Your Vienna Acoustics Team  
 

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