Adcom GTP-880 owner manual Surround Mode Buttons, Surround Format Information

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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 tempo- rarily 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.

Adjusts the volume level for the main room only. Room two is not affected by this control.

[9] Surround Mode Buttons

With the surround mode buttons the available surround sound modes can be selected. The selected surround mode is permanently indicated in the display area and is also shown for three seconds in the large text section of the display.

7.1m²™ Button: Pressing this button activates ADCOM’s proprietary decoding algorithm.

This proprietary analog-domain post-processing technique takes 5.1 channel or other sources that have surround channel information and extracts a psuedo-stereo sur- round back channel information. Only DSP modes that do NOT generate more than 2 surround channels (e.g. - Dolby Digital, DTS, 5 Stereo, Dolby Pro Logic, Dolby Pro Logic

IICinema, Dolby Pro Logic II Music, DVD-Audio Bypass Input, SACD Bypass Input) can benefit from ADCOM 7.1m2 post-processing. Trying to enable ADCOM 7.1m2 during any other DSP mode (e.g. Dolby Digital EX, DTS-ES Extended Surround, 7 Stereo, 2 Channel Bypass) is Invalid and will be indicated as such by the system. Additionally if the system setup up does NOT indicate that the system setup offers 2 surround back channels, ADCOM 7.1m2 will never be offered as option.

Pressing this button again turns 7.1m²™ decoding off and returns to previously selected surround mode.

Select Left/Right Button: Pressing this button cycles through list of available surround modes.

1.4 Surround Format Information

The GTP-880 provides decoding for Dolby Pro Logic® II, Dolby Digital® 5.1, Dolby Digital EX®, DTS®, DTS- ES® Discrete, DTS-ES® Matrix, DTS NEO:6® and ADCOM 7.1m²™. Within each mode, the GTP-880 also offers a wide range of additional processing options. This means you can precisely match a surround mode to your program mate-

rial, loudspeaker setup and personal taste. In addition, the GTP-880 precision bass management feature provides maximum flexibility when setting up your audio surround system (see “system setup” for further details).

ADCOM 7.1m²™: ADCOM’s proprietary decoding algorithm. The 7.1m²™ decoding process mixes the signals from the left surround and right surround channels to derive two unique signals sent to each back output. The benefit of our 7.1m²™ decoding process is enhance imaging between the surround speakers and the creation of a more diffuse ambient sound field. The 7.1m²™ process has the same benefits when compared to other matrix decoding as stereo signals have over mono signals. The 7.1m²™ process can also be used to drive your surround back speakers when you are listening to an externally decoded DVD audio or SACD multichannel disc. Due to the varying nature of film soundtracks and music, you may prefer to activate or deactivate the surround back channels. For example, Dolby Digital 5.1 and DTS soundtracks benefit greatly from the addition of the 7.1m²™ processing. ProLogic soundtracks on the other hand provide a mono surround signal track, which yields a less satisfying experience when using the surround back channels.

Note: 7.1m2 decoding may only be applied to 5 channel signals.

Dolby Digital: This digital audio format provides 5.1- channel surround sound. Dolby Digital source material includes DVDs, laser discs, HDTV broadcasts, some satellite delivered programming, and the output of some digital cable set top boxes.

Dolby Digital Surround EX: This processing mode is a joint development of Dolby Laboratories and the THX division of LucasFilm, Ltd. Film soundtracks encoded with Dolby Digital Surround EX technology contain an extra channel, added to the soundtrack during mixing, called surround back, which places audio behind the listener in addition to the existing front left, front center, front right, surround left, surround right, and subwoofer channels. This additional channel provides more detailed imaging behind the listener creating more depth, spacious ambience and sound localization than before.

Note: Surround EX mode can also be engaged during the playback of 5.1 channel material that is not Dolby Digital Surround EX encoded. When used this way, signals from the left and right surrounds are used to synthesize the surround back channel. Results using this method will vary

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Contents Page Welcome Remote Control SetupDescription of Unit Outdoor Antenna Grounding Adcom Protection Plan USA only Unpacking the GTP-880Interface Overview Bass & Treble Adjustments Analog Direct SelectionsTo operate the tuner Source Buttons Volume controlSurround Format Information Surround Mode ButtonsAdditional Information Placement of your GTP-880 AC Input Video 2 Component Input Input & Output System ConnectionsMonitor Component Video Output 15 AM/FM Antenna Inputs20 12V DC Trigger main/room Composite Video main OutputRoom 2 Analog Audio Output 23 RS232 Control DB9Main Analog Audio outputs Connecting ComponentsExternal Amplifier DVD PlayerOutput jacks supplied by the GTP-880 are Audio Recorder CD PlayerVideo Components Video RecorderVideo Display Satellite Tuner or TelevisionPage Page Page Analog Source GTP-880 Tuner Preamp Connection DiagramConnection Diagram GTP-880 Video Outputs Power Button GRC-810 Remote ControlDirect Access Keypad Main ButtonRemote Features 32 Main Button Volume Up & Down ButtonsOverview of the GRC-810 Direct Analog Input Buttons Navigation & Select Buttons48 Ch. Trim & FM/AM Button 49 Ch. Cal & Memory ButtonButtons Function CD Function VCR Vunction Video Page Programming Your Own Commands Using Pre Programmed CommandsDeleting Individual Commands Programming the GRC-810 RemoteDeleting all the Commands for Every Source Component Programming Macro ButtonsDeleting Macro Initiator Buttons Command GTP-880 Function Commandfront GTP-880 Function Input Configuration Setup OverviewOn Screen Display To turn the GTP-880 onSpeaker Configuration Speaker PlacementTo configure an input To configure the GTP-880 for your speaker system To set the channel levels for you system Channel Configuration CalibrationTo set channel levels using the test tone function To adjust channel trim from the main menuChannel Trim Delay Configuration To adjust channel trim using the trim functionTo set the speaker distance delays for your speakers Sleep Timer Setting the OSD Time OutTo set the sleep timer from the main menu To set the front panel display brightnessPro Logic II and NE06 Music Config Analog Level Input and Peak IndicatorTo turn on theater compensation using the th-eq button Theater CompensationRoom Two Configuration To adjust the Plii Music ParametersTo adjust the room two settings To lock a specific surround mode To enable/disable Night Mode compensationDynamic Range Page Installer’s Notes System Reset Resolving ProblemsSymptom Possible Reason Possible Solution Servicing Caring for your GTP-880Preamplifier Analog Section GTP-880 SpecificationAdcom

GTP-880 specifications

The Adcom GTP-880 is a high-performance home theater preamp and processor that has garnered attention for its impressive features and audio quality. Designed for audiophiles and home theater enthusiasts alike, the GTP-880 stands out due to its versatile functionality and advanced technology.

One of the main features of the Adcom GTP-880 is its multi-channel audio processing capability. Supporting formats such as DTS, Dolby Digital, and several others, this preamp ensures that users experience immersive sound in their home theater systems. This cinematic audio experience is complemented by a well-executed surround sound setup, allowing users to achieve the kind of high-fidelity output traditionally found in professional environments.

The GTP-880 is also equipped with a range of inputs and outputs that enhance its versatility. It includes multiple digital inputs - including coaxial and optical options - alongside standard analog inputs. This extensive connectivity makes it easy to integrate various devices from CD players to gaming consoles, ensuring flexibility in how users configure their systems. Moreover, the inclusion of balanced XLR outputs aids in minimizing noise for clearer sound reproduction.

Technologically, the Adcom GTP-880 employs advanced circuitry designs that contribute to its high-performance audio. The use of high-quality components offers not only durability but also superior sound fidelity. It also features a sophisticated user interface that makes navigating options effortless, including customizing sound settings and adjusting levels.

In terms of build quality, the GTP-880 showcases an elegant design that fits seamlessly into most home entertainment setups. Its sturdy construction ensures reliability and longevity, while the sleek appearance makes it a visually appealing component in any audio setup.

Another notable characteristic is the remote control functionality, which adds convenience for users looking to manage their home theater system from a distance. Additionally, the unit provides multiple setup options, catering to different room acoustics and personal preferences.

In summary, the Adcom GTP-880 is a remarkable preamp and processor, marrying advanced audio processing technologies with excellent build quality and flexibility. Its blend of features allows for an unparalleled audio experience, making it an ideal choice for home theater aficionados seeking to elevate their audio experience. Whether it’s for movies, music, or gaming, the GTP-880 stands as a formidable choice in the landscape of home audio equipment.
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