Connecting an Ampliﬁer, Connecting a Subwoofer | Adcom GFR-700HD

External Ampliﬁer Connections

The GFR-700HD’s built-in 5 x 145 watts per channel (EIA/CEA 490-A) ampliﬁer has more than enough power for most home applications. Nevertheless, 7.1 preamp outputs are provided so you can hook the GFR-700HD up to an even bigger rig (the GFA-7707 comes to mind), if desired.

More importantly, these preamp outputs can also be used in tandem with the GFR-700HD’s built-in ampli- ﬁer to connect a subwoofer (S) and surround back (RB/LB) speakers.

Connecting an Ampliﬁer

1Using eight RCA cables, connect the 7.1 channel preamp outputs from the GFR-700HD to the cor- responding RCA inputs on your external ampli- ﬁer.

•Connect the RF, LF, RS, LS, RB, LB, and C outputs to the ampliﬁer and the S output to a powered subwoofer.

2If you have a 5.1-channel ampliﬁer, use ﬁve RCA cables and omit the RB and LB connections. Con- nect the S output to a powered subwoofer.

Connecting Surround Back Speakers

For full 7.1 surround sound, you’ll want to connect surround back speakers, which must be connected to an external ampliﬁer.

1Using two RCA cables, connect the RB and LB outputs from the GFR-700HD to the correspond- ing RCA inputs on your external ampliﬁer.

2Connect your right and left surround back speak- ers to the external ampliﬁer.

Connecting a Subwoofer

The “.1” in 5.1 and 7.1 stands for the all-important Subwoofer, also known as an L.F.E., or low-frequency effects channel. No home theater would be com- plete without a subwoofer rumbling your listening area with thunderous bass.

1Using an RCA cable, connect the S output from the GFR-700HD to the corresponding input on your powered Subwoofer.

Chatper 2 - Connections

Surround

Surround

Back Right

Back Left

Subwoofer

Output

Output

Output

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GFR-700HD Owner’s Manual

25

Image 25

Adcom GFR-700HD user manual Connecting an Ampliﬁer, Connecting Surround Back Speakers, Connecting a Subwoofer

Contents

GFR-700HDA/V Receiver Copyrights/Trademarks Congratulations on your purchase of the Adcom GFR-700HD Table of Contents Regulatory Information Important Safety Instructions Introduction Key FeaturesUnpacking the GFR-700HD Placing the GFR-700HD About the Remote ControlInserting the Remote Batteries Front Panel Overview Remote Control Overview Setup button Volume  / buttonsMode button Preset/Tune button Rear Panel Overview Main power switch Voltage switchZone 2 IR input 11 RS232 control Volume level Surround modeDisplay Overview Video source Before You Begin Connections Overview Connecting the FM Antenna Connecting the AM Loop AntennaAM/FM Antenna Connections Antenna Input Basic Audio/Video Connections Connecting Audio/Video ComponentsFor Advanced Connections Video Input Component/Progressive Scan Connections DVD Player ConnectionsDigital Audio Connections Hdmi Connections Special Note on Progressive Scan DVD Players Component/Progressive Scan Connections Digital Audio Connections Connecting Digital Audio ComponentsCoaxial Optical Digital Audio Hdmi Connections Connecting Hdmi ComponentsAbout Hdmi About the Hdmi Scaler External Decoder Connections Connecting a DVD-A/SACD Player Connecting a Tape Player Connecting a CD PlayerTape Input Composite Video Connections TV/Monitor ConnectionsVideo Connections Component Video Connections Placing your Speakers Speaker Placement Speaker Connections Connecting SpeakersRight Left Surround Front Center Connecting Surround Back Speakers Connecting an AmpliﬁerConnecting a Subwoofer Surround Back Right Back Left Subwoofer Output Output Video 3 Video Connecting a Video Recorder Tape Out/Aux Connections Connecting a Tape RecorderTape Aux Output Connecting the 12V DC Trigger Connecting the Zone 2 OutputsConnecting a Remote Sensor Variable or Fixed Output? Control Connections Screen/Power Trigger ConnectionsRemote IR Sensor Connections PC Connections Checking the Voltage Switch Power ConnectionsConnecting the Power Cable Turning on the Power Setup Overview Setup Navigation Input Conﬁguration HD Scaler Conﬁguration Basic Controls Picture ControlsAdvanced Controls Volume Volume/Tone ConﬁgurationTone Control Bass Level Speaker Conﬁguration Delay Unit Delay Conﬁguration Test Tone Channel BalanceFront / R Front Surround / R Surround Plii Music Config Dimension Plii Music Config Center WidthNEO6 Music Config Center Image Pro Logic IIx/Neo6 Conﬁguration Room 2 Basic Conﬁguration Advanced SettingsRoom Mute Room 2 Advanced Conﬁguration System Conﬁguration Input Name Input LabelingEdit Name Erase Name Video 1~4 Analog Input LevelTape Tuner Using Preprogrammed Commands Remote Control SetupProgramming Remote Commands Main Commands Video 1-3 Commands Using Preprogrammed Commands Video 4 GDV-850 Commands CD GCD-750 Commands Tuner Commands Room 2 Commands Programming a Command Programming Remote Commands Deleting a Command Deleting Remote CommandsDeleting all Commands for a Component Deleting all Commands for all Components Programming a Macro Button Programming Macro ButtonsDeleting a Macro button Function Description Data Discrete Remote Control Commands Tuner Step + Operations Overview Picture Format Basic Audio/Video PlaybackExternal 7.1 Playback Tape Playback Dolby Surround Modes Selecting Surround ModesDTS Surround Modes Tone Control Other Surround ModesStereo Hall Making an Audio/Video Recording Basic Recording Tuner Operations Using the Front Panel Display Dimmer Using the Sleep TimerSystem Operations Room 2 Operations Overriding Default Room 2 SettingsActivating the Room 2 Output System Reset Product Care & MaintenanceCustomer Support Adcom Protection Plan Symptom Possible Reason Possible Solution Troubleshooting Technical Speciﬁcations Index Page East Anderson Drive, Suite Scottsdale, Arizona Voice Fax