Acoustic Energy 308 Podręcznik użytkownika - Strona 2
Przeglądaj online lub pobierz pdf Podręcznik użytkownika dla Subwoofer Acoustic Energy 308. Acoustic Energy 308 2 stron. 3 series
Drukuj stronęPower cord
Power supply cords should be routed so as not to be walked on or caught under or against
items.
Ventilation
To ensure reliable operation and to prevent the subwoofer from overheating, ensure good
ventilation. Do not cover the subwoofer and do not place it closer than 10cm from walls or
soft furnishing. Do not use in a built-in installation unless proper ventilation is provided.
Water and moisture
The subwoofer should not be used near water, i.e. near a washbowl, basin, in a wet
basement or near a swimming pool or jacuzzi area.
Temperature
The subwoofer may not function correctly at extremely low or freezing temperature. The
subwoofer should also be sited away from heat sources such as radiators or other electrical
equipment that produces heat, including other ampli ers.
Electric shock
Care should be taken so that objects are not inserted into connectors or other apertures
and that liquid does not spill into the enclosure. Never attempt to dismantle the subwoofer
as serious electric shock may occur if the internal parts are touched.
Cleaning
Unplug the subwoofer from the wall power outlet before cleaning. Use only a clean, dry
cloth. Do not use cleaners, liquids or solvent-based preparations to clean the cabinet.
Smells
If an abnormal smell or smoke is detected, immediately turn the power o and unplug the
subwoofer from the wall power outlet.
POSITIONING
The 308 Sub is virtually omni-directional, so it can be placed in almost any location in the
room. For the best performance in the ideal room the subwoofer should be positioned in a
corner of the room or near a back wall. In certain circumstances the addition of a second
308 Sub located in another position in the room helps achieve a more uniform bass.
The use of two subwoofers often provides a greater than expected increase in sound quality
and bass dynamics, worth more than the additional cost would suggest. If two 308 Subs are
used, they should ideally be positioned in the corners near the respective units of the stereo
pair.
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CONNECTIONS
Check that both your ampli er and subwoofer are switched o before connection.
Failure to do so may result in speaker or ampli er damage. It is sometimes recommended
that over-long low cost cables are used initially to facilitate experimentation with
positioning, and only then purchase and install using the nal cable choice.
1. For use with ampli ers with a "Subwoofer Out" jack
Connect from the dedicated subwoofer line output on the ampli er to the line input(s) on
the 308 Sub. (A single lead to either input or a "Y" connector to both inputs may be used).
The stereo speakers are run direct for higher de nition.
2. For use with ampli ers with line level pre-amp jacks
The pre-amp outputs of your ampli er can be connected to the line-level inputs on the 308
Sub. The line level outputs on the 308 Sub are then connected back to the power amp
(main) inputs on your ampli er. This provides the greatest power handling to your stereo
speakers.
3. For use with televisions with a variable audio output
Some modern televisions are equipped with variable audio outputs. These can be
connected directly to the line level inputs on the 308 Sub to enhance the bass response of
the television's built-in speaker.
NOTE: If unsure about any wiring options please refer to the connected ampli er manual or
ask your local dealer for further advice.
OPERATION
1. Volume knob
Adjusts the volume level output of the subwoofer, allowing you to balance the volume of
the 308 Sub to blend in with your main stereo speakers. Turning the knob clockwise
increases the volume level, turning the knob anti-clockwise decreases the volume level.*
2. Crossover frequency knob
Adjusts the balance at the crossover point between the bass (low frequencies) from the 308
Sub and the treble (high frequencies) continuing to the main stereo front speakers.
3. Phase knob
The normal setting for the phase is the 0° position. Turning to 180° will change the
subwoofer phase and vary the tonal quality of the bass, which is also dependant on the
location of the 308 Sub relative to your main stereo speakers.
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