Manuals / Adcom / Home Audio / Stereo Receiver

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

Models: GFR-700

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External Ampliﬁer Connections

External Ampliﬁer Connections

The GFR-700’s built-in 5 x 125 watts per channel am- pliﬁer has more than enough power for most home applications. Nevertheless, 7.1 preamp outputs are provided so you can hook the GFR-700 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-700’s built-in ampliﬁer 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-700 to the corre- sponding RCA inputs on your external ampliﬁer.

•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-700 to the corresponding 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-700 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-700 Owner’s Manual

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Adcom GFR-700 Connecting an Ampliﬁer, Connecting Surround Back Speakers, Connecting a Subwoofer, Back Right, Back Left

Contents

GFR-700 A/V Receiver Copyrights/Trademarks Table of Contents Chapter 3 - SetupChapter 1 - Welcome Chapter 2 - ConnectionsImportant Safety Instructions Important Safety InstructionsRegulatory Information Introduction Key FeaturesUnpacking the GFR-700 Chapter 1 - WelcomePlacing the GFR-700 About the Remote ControlInserting the Remote Batteries Chapter 1 - WelcomeTune/Preset button Room Two Setup buttonVolume knob Front Panel Overview3Power button Remote Control Overview1Main button 2Source Selector buttons17Setup button 16Volume  / buttons28Preset/Tune button 10Mem buttonChapter 1 - WelcomeRear Panel Overview 1Tuner inputs14Voltage switch 9HDMI switcher15Main power switch 6Analog audio inputs/outputsDisplay Overview 4Volume levelOn-ScreenDisplay Front Panel Display 1Video sourceConnections Overview Chatper 2 - ConnectionsBefore You Begin Input ConnectionsConnecting the FM Antenna Connecting the AM Loop AntennaAM/FM Antenna Connections AM Loop Antenna Adapter FM AntennaChatper 2 - Connections Connecting Audio/Video ComponentsBasic Audio/Video Connections For Advanced ConnectionsDVD Player Connections External 7.1 ConnectionsComponent/Progressive Scan Connections Digital Audio ConnectionsComponent Video Progressive Scan Inputs Chatper 2 - ConnectionsComponent/Progressive Scan Connections Component/Progressive Scan ConnectionsDigital Audio Connections Connecting Digital Audio ComponentsCoaxial OpticalConnecting HDMI Components Using the HDMI JacksHDMI Connections HDMI InputsExternal Decoder Connections Connecting a DVD-A/SACDPlayerExt. Inputs Chatper 2 - ConnectionsConnecting a Tape Player Connecting a CD PlayerCD/Tape Player Connections TapeComposite Video Connections TV/Monitor ConnectionsS-VideoConnections Component Video ConnectionsLB RB 7.1 Speaker Placement TV LF C RF S Speaker Placement5.1 Speaker Placement Placing your SpeakersBare wire connection “U”-typespade connection Connecting SpeakersSpeaker Connections “Banana” plug connectionConnecting Surround Back Speakers Connecting an AmpliﬁerConnecting a Subwoofer Back RightVideo Recorder Connections Connecting a Video RecorderVideo 3 Video Chatper 2 - ConnectionsConnecting an Auxiliary Audio Device Connecting a Tape RecorderTape Out/Aux Connections 1Connect the audio deviceConnecting the 12V DC Trigger Connecting the Zone 2 OutputsConnecting a Remote Sensor Room 2 ConnectionsPC Connections Screen/Power Trigger ConnectionsControl Connections Remote IR Sensor ConnectionsChecking the Voltage Switch Power ConnectionsConnecting the Power Cable Turning on the PowerChapter 3 - Setup Setup OverviewChapter 3 - Setup Setup Select Setup NavigationMain ArrowsInput Conﬁguration VOLUMESOURCE INPUTFRONT Speaker ConﬁgurationCENTER SURROUNDDELAY UNIT Delay ConﬁgurationChapter 3 - Setup FRONTTEST TONE Channel BalanceL FRONT / R FRONT L SURROUND / R SURROUNDPLII MUSIC CONFIG DIMENSION PLII MUSIC CONFIG CENTER WIDTHNEO 6 MUSIC CONFIG CENTER IMAGE Pro Logic IIx/Neo 6 ConﬁgurationRoom 2 Basic Conﬁguration ADVANCED SETTINGSROOM MUTEINPUT GAIN CONFIG INITIAL POWERRoom 2 Advanced Conﬁguration VOCAL CUTSystem Conﬁguration SETUP LOCKOSD TIME OUT VID BLK LVLVIDEO 1~4 Analog Input LevelTAPE TUNERUsing Preprogrammed Commands Remote Control SetupProgramming Remote Commands but it also remaps the remote controlMain Commands Using Preprogrammed CommandsVideo 1-3Commands Chapter 3 - SetupCD GCD-750Commands Video 4 GDV-850CommandsChapter 3 - Setup Using Preprogrammed CommandsRoom 2 Commands Tuner CommandsChapter 3 - Setup Using Preprogrammed CommandsProgramming a Command Programming Remote CommandsStatus LED Orange/Green/Red Source buttons Select buttonDeleting a Command Deleting Remote CommandsDeleting all Commands for a Component Deleting all Commands for all ComponentsProgramming a Macro Button Programming Macro ButtonsDeleting a Macro button Group 1 Main, Vid 1~3 Group 2 Vid 4, CD Tuner, RmChapter 3 - Setup Discrete Remote Control CommandsFunction Description DataDiscrete Remote Control Commands Chapter 3 - SetupChapter 4 - Operations Operations OverviewChapter 4 - Operations Volume Special Playback FeaturesBasic Audio/Video Playback External 7.1 PlaybackDolby Surround Modes Selecting Surround ModesDTS Surround Modes DOLBY-D7.1 m2 Other Surround ModesSTEREO HALLMaking an Audio/Video Recording Basic RecordingChapter 4 - Operations Tuning Stations Manually Switching between Manual and Preset tuningTuning Stations Automatically Storing Stations as PresetsUsing the Front Panel Display Dimmer Using the Sleep TimerSystem Operations SleepDimRoom 2 Operations Overriding Default Room 2 SettingsActivating the Room 2 Output Chapter 4 - OperationsSystem Reset Product Care & MaintenanceCustomer Support Adcom Protection PlanChapter 5 - Help TroubleshootingPREAMPLIFIER ANALOG SECTION Technical SpeciﬁcationsPREAMPLIFIER DIGITAL SECTION FM TUNER SECTIONChapter 5 - Help IndexAdcom shall not be liable for any errors contained herein or for any damages arising out of or related to this document or the informa- tion contained herein, even if Adcom has been advised of the possibility of such damages. This document is intended for informational and instructional purposes only. Adcom reserves the right to make changes in the speciﬁcations and other information contained in this document without prior notiﬁcation. Adcom disclaims any obligation to update the information contained herein GFR-700 manual 8541 East Anderson Drive, Suite