Connection Options; Controls - Adjustment Via The App; Positioning Of The Subwoofer/S; Audio Stereo Configuration - Sonus Faber Gravis Mode D'emploi

4.2 CONNECTION OPTIONS

For the connection of the subwoofer to the audio system, refer, depending on the model, to one of the schemes
in Section 7 (Illustrations).
4.3 CONTROLS – ADJUSTMENT VIA THE APP (products provided with this feature, only)
The subwoofer has an advanced built-in digital control system. The conventional analogue rotary potentiometers and
selector switches (with exception of the volume control) have been replaced by a digital signal processor (DSP), which
allows easy and accurate adjustment of the subwoofer. With the aid of a customised smart app, it is possible to easily
adjust all parameters, from the volume to the cut-off frequency, up to the phase and automatic calibration function.
The digital control system also eliminates the risk of undesired modification to the controls and settings. Note: to
configure and use the subwoofer, an Android or iOS device with low energy Bluetooth 4.0 is necessary.
The "GRAVIS SUB CONTROL" app can be downloaded from the Apple
"Quick Guide" is included in the subwoofer packaging, which describes the functionalities of the app.
Important: the mobile device must support Standard 4.0 Bluetooth
through 2013 were compatible with this functionality. If necessary, consult the documentation accompanying the
mobile device or contact the manufacturer's technical after-sales hotline. Note: if your mobile device requires a 4-digit
code during the coupling procedure with the subwoofer, use the following code: "0000".

5 POSITIONING OF THE SUBWOOFER/S

5.1 AUDIO STEREO CONFIGURATION

Refer to the images in Section 7 (Illustrations).
SUBWOOFER POSITIONING KEY
1. Recommended for clear reproduction of the bass sounds.
2. Extreme configuration for maximum acoustic output.
NOTE If two subwoofer units are used, it is greatly recommended to install one on the left and one on the right
of the listening area. Do not position the units symmetrically to each other.
5.2 MULTICHANNEL AUDIO/AUDIO-VIDEO CONFIGURATION
Refer to the images in Section 7 (Illustrations).
SUBWOOFER POSITIONING KEY
The diagram indicates the positions recommended for 2 subwoofers (unit B = additional).
1. Recommended for clear reproduction of the bass sounds.
2. Extreme configuration for maximum acoustic output.
3. Recommended for clear reproduction of the bass sounds (additional subwoofer).
4. Extreme configuration for maximum acoustic output (additional subwoofer).
NOTE If two subwoofer units are used, it is greatly recommended to install one on the left and one on the right of
the listening area. Do not position the subwoofers symmetrically to each other with respect to the main listening
point.
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