ADCOM GTP-880 Owner’s Manual | 1
WELCOME Dear fellow ADCOM product owner, Welcome to the ADCOM family! For more than twenty years, ADCOM products have delivered excellent performance and value for customers around the world. Our products are designed by our experienced and demanding engineering team, built to the highest standards in our factory, and sold and serviced through dealers, custom installers, and other retailers whose primary goal is your complete satisfaction.
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Unpacking your GTP-880 . . . . . . . . . . . . . . . . . . . . . . 5 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . 5 Description of Unit 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Front Panel Illustration . . . . . . . . . . . . . . . . . . . .
THE FOLLOWING PRECAUTIONS AND SAFETY INSTRUCTIONS ARE REQUIREMENTS OF UL AND CSA SAFETY REGULATIONS Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. ATTENTION POUR PREVENIR LES CHOCS ELECTRIQUES NE PAS UTILISER CETTE FICHE POLARISEE AVEC UN PROLONGATEUR, UNE PRISE CE COURANT OU UNE AUTRE SORTIE CE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.
Unpacking the GTP-880 Before your new ADCOM tuner-preamplifier left our factory, it was carefully inspected for physical imperfections and tested for all electrical parameters as a routine part of ADCOM’s systematic quality control. This, along with full operational and mechanical testing, should ensure a product flawless in both appearance and performance. After you have unpacked the GTP-880, inspect it for physical damage.
1.1 Front Panel Illustration 1 2 5 5 3 8 6 4 9 7 [1] Standby Power Button [2] Room Two Control [3] Bass & Treble [4] Analog Direct Select [5] Digital Tuner Controls [6] Front Panel Display 1.2 Introduction to the GTP-880 Congratulations on your decision to purchase the ADCOM GTP-880 tuner-preamplifier. The GTP-880 provides Dolby Digital and DTS decoding with 7.1 output channels and the RDS (Radio Data System) tuner.
Pressing this button again presents the option to set the listening volume in room two, range is -80dB to 10dB. Note: If no other selection is made while in setup, selections will be saved and configuration will exit within 5 seconds. [3] Bass & Treble Adjustments These buttons control bass and treble equalization. Adjustments are made in 2dB steps. Bass Button: Pressing this button displays current bass setting, range is from -8dB to +8dB. Use the volume knob to make an adjustment.
This display indicates that the tuner is in AM with a selected preset and the frequency of that preset or station. The numbers in front of the dB indication are the current volume setting. 3. Use the tune buttons on the front panel or the remote to change the tuner frequency. The new frequency will be displayed to the left of the volume level on the front panel display and OSD. Pressing a tune button once increases or decreases the FM frequency by .1 MHz and the AM frequency by 10 KHz. 4.
and after three seconds the display defaults to its previous status. Volume setting can range from -80dB to +10dB. On the remote control, press the mute button to temporarily switch off the sound to the preamp outputs. Mute mode is indicated by the word “mute” in the display area. Press mute again or adjusting the volume will restore sound. Mute does not affect recordings made using the tape or VCR outputs but does affect the signal going to the preamp outputs.
depending on the source material. Surround EX decoding is ONLY applicable to 2/2.0, 2/2/ .1, 3/2.0, 3/2.1 streams AND when there is one or two surround back channels available in the system. Dolby Pro Logic II: Dolby Pro Logic II is a substantial enhancement to the original Pro-Logic process. In addition to full-bandwidth surrounds, Pro Logic II provides three unique user adjustable processing options: panorama; dimension; and center width. Used primarily in Pro Logic.
Placement of your GTP-880 Your system components need a stable, vibration-free supporting surface. Your ADCOM dealer will be pleased to show you many different types of audio/video equipment racks and cabinets. Keep the GTP-880 (and other audio/ video components) away from moisture and out of direct sunlight. Bear in mind that the GTP-880’s rear panel is the central connecting point for almost every component in your audio/video system.
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1.6 Input & Output System Connections Like the front panel, the GTP-880’s rear panel is carefully arranged to make hookup, configuration, and use as simple as possible. However, the GTP-880’s capabilities take some study to use most effectively. We strongly suggest that you read this section of the manual before beginning to hook up your system.
[18] Composite Video Inputs Use these inputs for connection to the composite video output from sources such as a DVD or LD player, satellite receiver, cable box, PVR or other video source. Note that when the component video inputs are used, connect the analog audio outputs of the source to the DVD or video 1 jacks, as appropriate. [19] Composite Video main Output Connect this output to the composite video input of your monitor or other video display device.
reinforce the low-end frequency response of the system. 80Hz low-pass crossover for subwoofer: 12 dB/octave Down Position: LPF/HPF complete bypass path (analog multichannel input bass management disabled) This position is ideal for DVD-Audio/SACD multichannel players which already include integrated bass management, a user has another multichannel analog bass management device, or all speakers in the system are full-range.
External Amplifier DVD Player Important Note: Before attempting to plug any jacks into any power amplifier verify that the power amplifier is turned off and/or disconnected from the AC mains. Failure to do so can potentially result in severe damage to your amplifier and loudspeakers. Composite: Connect the composite video output from the DVD player to the DVD video input jack on the rear of the GTP-880 using an RCA-type video cable.
Multi Channel Audio: If your DVD player supplies a multichannel audio output (for DVD Audio or SACD playback), connect the six outputs (special cable sets for this are available from numerous sources) from your player to the six input jacks labeled DVD Audio input on the rear panel of the GTP-880. Be sure match the connections—left to left, right surround to right surround, and so on.
(opt 1-3) input jacks on the rear of the GTP-880, depending on the type of connector used by the device. Later, you will configure the GTP-880 to use the specific input that you have chosen. Video Display If your recording device also has a digital input jack, connect it to either the coaxial or optical output jack on the rear of the GTP-880, depending on the type of connector used by the device. The signal from the selected input source of the GTP-880 will be sent to the recorder.
Connection Diagram: GTP-880 to a GFA-7807 Amplifier GFA-7807 Power Amplifier ADCOM GTP-880 Owner’s Manual | 19
Connection Diagram: GDV-850 DVD Player to the GTP-880 Direct Analog Input (DVD Audio) GDV-850 DVD Player GTP-880 Tuner Preamp 20 | ADCOM GTP-880 Owner’s Manual
Connection Diagram: GDV-850 DVD Player to the GTP-880 Digital & Analog Stereo Input GDV-850 DVD Player GTP-880 Tuner Preamp ADCOM GTP-880 Owner’s Manual | 21
Connection Diagram: Analog Source (CD, VCR, etc.
Connection Diagram: GTP-880 Video Outputs ADCOM GTP-880 Owner’s Manual | 23
2.1 GRC-810 Remote Control [32] Main Button [33] Source Selection Buttons 32 [34] Power Button 33 [35] Mute Button [36] Volume Up & Down Buttons 34 [37] Tape & Aux Buttons 35 36 37 38 39 [38] Dynamic Range Button [39] Play Button [40] Main Menu Button [41] Navigation & Select Buttons 40 [42] Pause Button 41 42 [43] Stop Button 43 [44] Direct Access Keypad 45 [45] Surround Mode Buttons [46] Direct Analog Input Buttons [47] Random & Repeat Buttons 44 [48] Ch. Trim & FM/AM Button [49] Ch.
2.2 Overview of the GRC-810 The GRC-810 remote control is a learning remote control that is capable of saving commands for all remote controls in your home theater system. In this way, you may eliminate the confusion of using multiple remotes. Although such power comes with some added complexity, the complexity is minimal and with some repetition will become second nature.
[40] Main Menu Button button is used to program radio stations in memory. In main mode, this is pre programmed to enter on screen menu of the GTP-880. [50] Th-Eq & P.Scan Button [41] Navigation & Select Buttons The arrow buttons allow navigation throughout the GTP880 OSD (ON Screen Display) menus (as well as the menus of other devices, once the commands are learned). Select button: In main mode, this is pre programmed to enter a selection chosen via the menu system.
Custom Code: 1AE5h Buttons main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter 7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm.
Custom Code: 1AE5h Buttons main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter 7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm.
Custom Code: 1AE5h Buttons main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter 7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm.
Custom Code: 1AE5h Buttons main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter 7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm.
Buttons Function: Notes Macro 1 Function: Notes Macro 2 Function: Notes Macro 3 Function: Notes Macro 4 Function: Notes Data Code ADCOM GTP-880 Owner’s Manual | 31
2.5 Programming the GRC-810 Remote As you’ve already seen, the GRC-810 is pre programmed to control ADCOM’s GTP-880 tuner preamp and the GCD750 CD and GDV-850 DVD players. In addition, it has seven “component memory banks” available so you can program the remote to learn commands for your DVD player, satellite box, laser disc player, VCR, etc. This lets you use one remote controller for your entire system. Using Pre Programmed Commands Using the remote controller’s pre programmed commands is simple.
3. Press the backlight button. The status LED will then flash green twice and then revert to steady orange. The source selector button will continue to glow. Repeat steps 2 and 3 for any other command you wish to delete for the same source component. 4. Exit “delete mode” by pressing and holding the source selector and select buttons simultaneously. The orange status LED and the source selector button will turn off. Deleting all the Programmed Commands for one Source Component 1.
2.7 Function and Data List for GTP-880 (Discrete) Remote Control via IR Custom Code: 1AE8h Command pwr on pwr off dvd-a on dvd-a off sacd on sacd off 2 channel on 2 channel off otp1 opt2 opt3 coax1 coax2 coax3 fm-mono fm-stereo bypass-on bypass-off mute-on mute-off room2-on room2-off mute2-on mute2-off room2 vol + room2 vol t.comp-on t.
Custom Code: 1AE8h Commandfront distance + front distance center distance + center distance surr rear distance + surr rear distance surr back distance + surr back distance sub distance + sub distance distance unit center trim + center trim rear l trim + rear l trim rear r trim + rear r trim sub trim + sub trim back l trim + back l trim back r trim + back r trim d.range 0 d.range 25 d.range 50 d.range 75 d.
3.1 Setup Overview At this point you should have made all the necessary physical connections between the GTP-880 and your source equipment, amplifiers and speakers. All that remains is to properly configure the system to reflect your specific equipment and room characteristics. To use the GTP-880 menu system: 1. Press the main menu button to display the main menu. The main menu appears on the OSD: To turn the GTP-880 on: 1.
To configure an input: 1. Press the menu button to enter the main menu. The main menu appears on the front panel display and the OSD. The cursor on the OSD should be pointing to the input configuration menu and input config appears on the front panel display. 2. Press select to enter the input configuration menu. The input configuration menu appears on the front panel display and the OSD. The selected menu item should be source. 3. Use the and buttons to select which particular Source you wish to configure.
specific situation. Please note that, the configuration and placement of your speakers is critical for creating the best possible surround sound playback. To configure the GTP-880 for your speaker system: 1. Press the menu button to enter the main menu. The main menu appears on the front panel display and the OSD. The cursor on the OSD should be pointing to the input configuration menu and input config appears on the front panel display. 2. Press the button once to select the speaker configuration menu.
this will insure that all the appropriate low frequency information is directed to the subwoofer where it can be most effectively handled. 4. Use the and buttons to cycle through the speaker options for the front speaker. The following options are available for each group of loudspeakers: • For front you can select small or large • For center you can select small, large or none • For surr(ounds) you can select small, large or none • For surr(ounds) rear you can select BS(LB), LB/RB or none.
3. Press select to enter the channel calibration menu. The channel calibration menu appears on the front panel display and the OSD. The selected menu item should be left front. A special test tone will be generated allowing you to measure the output of the speaker that’s playing. Adjust the master volume as needed. 4. Use the and buttons to adjust the speaker level. You can adjust the selected channel level in 1dB steps across a range of -15dB to +10dB. 5.
the OSD. The selected menu item should be left front. 3.6 Delay Configuration 4. Use the and buttons to adjust the channel trim. You can adjust the selected channel trim level in 1dB steps across a range of -15dB to +10dB. Setting the speaker delay is crucial to the proper performance of any surround decoder component like the GTP880. Your home theater system will not perform properly if this process is not completed. 5. Press the button when you have finished making the channel trim adjustment.
You can scroll in either direction using the and buttons. 7. Press the button when you have made a selection. Repeat steps 6 and 7 for the center and surround speakers. NOTE: There is no delay function for the subwoofer 8. Press the is selected. button until the return to main menu option 9. Press the menu button to return to the main menu, or press the menu button twice to exit. 3.7 System Configuration Setting the Display Brightness This control sets the front panel display brightness.
choices. The following times appear as you scroll through them: 60min, 50min, 40min, 30min, 20min, 10min, 5min, 0min 6. After making your selection, exit the menu. Theater Compensation Theater compensation provides special equalization within any of the selected DSP modes. Most theatrical soundtracks are mixed on large dubbing stages for playback in large movie theaters. When these soundtracks are played back in your home, they may appear to have too much treble, sounding harsh and “bright.
To adjust the PLII Music Parameters: 1. Press the menu button to enter the main menu. The main menu appears on the OSD. The cursor on the OSD should be pointing to the input configuration menu and input config appears on the front panel display. scroll through them: step 0, step 1, step 2, step 3, step 4, step 5, step 6, step 7 You can scroll in either direction using the and buttons.
the room two feature on or off. If on is selected, the red LED below the word room 2 on/off on the front panel will illuminate indicating activation of the second stereo room. 5. Press the button to select the Input menu. 6. Use the and buttons to select a stereo analog source which signal will be sent through the room 2 outputs to the second room.
setting. The unit cycles through the options in the following sequence: no comp, dr comp1, dr comp2, dr comp 3, dr comp4 The night mode menu will disappear automatically approximately 5 seconds (a factory default, may be changed in OSD time out) after you make your selection. In most cases a minimum amount of dynamic range reduction is automatically included in the bitstream to ensure safe downmixing.
Installer’s Notes This page has been intentionally left blank.
Resolving Problems Use the chart on the opposite page to solve common situations that don’t require professional attention. If the steps stated in possible solution do not resolve your problem, then please contact your ADCOM dealer or call the ADCOM customer service department. Any problems not covered here should be brought to the attention of your ADCOM dealer or ADCOM customer service dept.
Symptom Possible Reason Possible Solution No sound • Power AC lead unplugged or power not switched on • Tape Monitor selected • Mute on • Power Amplifier not on • Check if AC lead is plugged in and power switched on • De-select Tape Monitor mode • Switch off Mute • Turn on the Power Amplifier No sound on one channel • Speaker not properly connected or damaged.
Caring for your GTP-880 Great care has been taken by ADCOM to ensure that your amplifier is as flawless in appearance as it is electronically. The front panel is a heavy-gauge, high-grade aluminum extrusion carefully finished and anodized for durability. The chassis, top cover and rear panel are heavy-gauge steel that has been powder coated and baked to ensure a lasting finish.
GTP-880 Specification FM Tuner Section Preamplifier Analog Section Sensitivity Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26KΩ IHF ......................................... 10dBµ typ. Output Impedance (Main-RCA) . . . . . . . . . . . . . . . . . . . . . . <600Ω 50dB S/N ................................... 13dBµ typ. Rated Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0Vrms S/N Ratio Maximum Input . . . . . . . . . .
ADCOM A division of Klein Technology Group, LLC 8551 East Anderson Drive, Suite 105 Scottsdale, Arizona 85255 Voice: (480) 607-2277 Fax: (480) 348-9876 http://www.adcom.com 52 | ADCOM GTP-880 Owner’s Manual GTP880_manual_v1.
