The other two options available in this sub-menu are “HI-FI” and “HI-FI fixed”.
•“HI-FI”: this preset can be selected when you want to use the Cinch Audio outputs on the back of the cabinet to connect to an external amplification system. When selec- ting this output, the speakers of the cabinet will switched automatically to the “mute” condition. Select this option rather than “HI-FI fixed”, when the external amplifier is a flat response type with no tone or balance controls; with this connection, the necessary audio adjustments can be made directly from the Sound menu.
•“HI-FI Fixed”: this works in a similar way to HI-FI, but will be the preferable option if the external amplifier is part of a fully adjustable sound system with its own volume, balan- ce and tone controls. Selecting this option, the amplitude of the audio output signal from the RTX 55TV will remain constant, and all the adjustments can be made directly at
the external amplifier.
In the event of “HI-FI” or “HI-FI Fixed” being selected, the menu will also present the option “Center”. Activating this item, the cabinet speakers of the RTX 55TV can be used as a central speaker (Fig. 12). In this situation, the central speaker output from your external multichannel amplifier must be connected to the input on the back of the RTX 55TV cabinet (see figure 13).
F R
FL
RR
R L 
Fig.12
Fig.13
Advanced audio settings
Selecting “Advanced Adj.“ internally of the Sound menu, a sub-menu is accessed. If the sound effect selected is “SRS WOW”, the following three options appear:
•“TruBass”: enhances the low frequencies, giving greater depth to the sound.
•“3D Sound”: increases the spatial and three-dimensional effect of the sound, so that it seems to come from several points in space.
•“Focus”: enhances the high frequencies, giving greater clarity and detail.
Whilst the advanced settings “TruBass”, “3D Sound”
and “Focus” are available only in “SRS WOW” mode, the Advanced Settings menu will also present these further options against all selections of the “Sound Effect” item (“SRS WOW” included):
•SubWoofer: if you have connected an external appliance that uses the Subwoofer socket, select “On”.
•Volume SubW: this controls the volume for the subwoofer channel.
Note: When “HI-FI” is selected, “SubWoofer” and “Volume SubW” remain inactive.
•Headphones: although the item appears in the menu, the adjustments will have no effect as there is no headphones socket on this model.
•Equalizer: this item accesses an Equalizer sub-menu with the following options:
“Volume”; “Balance”; “Treble”; “Bass”; “Equalizer” (with the option “Off” selected); “Preset”.
