Sonus Faber GRAVIS I, Руководство пользователя, Страница: 13 / 64

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3 UNPACKING INSTRUCTION
The Sonus faber subwoofer has been packed in a manner that effectively preserves it, while making its removal
simple.
We suggest, however, that you follow the following general recommendations:
• keep all packaging material for future transport;
• do not wear any watches, bracelets, rings, etc., in order to avoid scratching the subwoofer during unpacking.
Carefully protect the subwoofer from contact with any metal finishes of clothing worn, such as zips, buttons,
buckles, rivets, etc.
Perform the unpacking operations as indicated by the images in Section 7 (Illustrations).
If present, in case the string grille has to be removed, slide the bar pins out starting from the top and then proceed
downwards. Refer to the images in Section 7 (Illustrations).
3.1 UNPACKING THE SUBWOOFER
3.2 STRING GRILLE
The subwoofer could be very heavy. To prevent injuries, lift it with caution and, if necessary, request
the help of a second person. Check the product to make sure it is not damaged. If this is not the case,
do not connect the subwoofer to a current outlet and contact the dealer immediately.
4 CONNECTIONS
4.1 BACKPANEL FUNCTIONS AND CONNECTORS
Refer, depending on the model, to the images in Section 7 (Illustrations).
Gravis I
1.
Phase switch: set the output signal polarity. This helps in choosing the most appropriate low frequency
distribution across the listening room.
2. Auto switch: when this switch is in the AUTO position, the subwoofer automatically switch on or off
depending on the presence of the input signal(s).
3. Crossover knob: adjusts the bandwidth of the subwoofer by setting the low-pass cut off frequency.
4. Hi/Low Level: adjusts the volume when the Line (RCA plug) or Speaker Level (Speakon
©
connector) inputs
are used.
5. .1/LFE Level: adjusts the volume when the LFE (RCA plug) input is used.
6. LFE Input: by using an RCA terminated cable, allows the connection of the subwoofer to the LFE (Low
frequency Effects) output of an AV player (DVD, Blu-ray, etc) or a home theatre controller/preamplifier. The
upper frequency limit for this input is fixed at 120 Hz.
7. Line Input: by using an RCA terminated cable, allows the connection of the subwoofer to the line output
of an AV player (DVD, Blu-ray , ecc.) or amplifier. The upper frequency limit for this input is variable and is
set by the subwoofer’s crossover knob.
8. Speakon
©
Connector: by using the supplied cable, allows the connection of the subwoofer to the speaker
outputs of a stereo integrated or power amplifier. The upper frequency limit for this input is variable and is
set by the subwoofer’s crossover knob.
9. Mains plug, switch and fuse holder.
10. ON/Stand-by LED