58Chapter 4 - OperationsGFR-700HD Owner’s ManualOther Surround Modes7.1 m2Uses an Adcom-proprietary digital pro-cessing technology to expand incomingstereo signals to 7.1-channel surroundsound. Use if:• Your source component is connected to the ana-log or digital audio inputs.• Your source audio is in 2-channel analog or digi-tal PCM format.• You have seven speakers plus a subwoofer.STEREOPasses an incoming or downmixed stereo signal tothe front speakers. Use if:• Your source component is connected to an ana-log or digital audio input.• Your source audio is in 2-channel analog or digi-tal PCM format.• You have at least two speakers (LF/RF), or wouldsimply prefer to listen to a multi-channel sourcethrough your two front speakers.HALLCreates a hall or amphitheater effect from an incom-ing or downmixed stereo signal. Use if:• Your source component is connected to an ana-log or digital audio input.• Your source audio is in 2-channel analog or digi-tal PCM format.• You have at least two speakers (LF/RF), or wouldsimply prefer to listen to a multi-channel sourcethrough your two front speakers.5-STEREOGenerates maximum output for a five speaker sys-tem. The rear speakers are driven with the samesignal as the front left and right, while the centerspeaker is a monophonic summation of the frontspeakers. Use if:• Your source component is connected to an ana-log or digital audio input.• Your source audio is in 2-channel analog or digi-tal PCM format.• You have at at least five speakers (LF/RF, C, LS/RS).Tone ControlManual Bass/Treble ControlFollow these steps to make Bass/Treble adjustmentson the fly:• Press the Bypass button on the remote control totoggle Tone Control on.• Use the Bass and Treble buttons to bring up thetone adjustment on-screen display.• Use the / buttons to set the desired level.Notes:• The tone adjustment on-screen display times outafter 3 seconds if no button is pressed.• Tone controls are not available in the DolbyDigital EX, DTS-ES, NEO6, and Pro Logic IIx Surroundmodes.