When you are using analog inputs, you will probably need to manually select the proper operating mode. However, the GTP-760 remembers the mode you’ve most recently used for a particular input and will automatically restore that mode when you use that input next, software permitting, of course.

You can change modes with the menu system or with the surround mode button when you wish.

The GTP-760’s operating modes are:

•DTS: This mode applies only when a DTS signal is present at the selected digital input (DVD, digital 1, or digital 2). DTS is an advanced six-channel (5.1) sound format primarily used for movie soundtracks, but also some audio only recordings. DTS encoded programming can use anywhere from a single channel to six channels during some aspects of a performance to deliver the greatest sonic impact. Your GTP-760 will automatically engage the DTS mode if it detects a DTS encoded source signal.

•Dolby Digital: This mode applies only when a Dolby Digital signal is present at the selected digital input (DVD, digital 1, or digital 2). Contrary to popular belief, Dolby Digital does not always imply a discrete 5.1 channel soundtrack. While many DVDs are 5.1 channel encoded, a large number have only 2 encoded channels. The GTP-760 automatically detects either case. If the front panel Dolby Digital indicatorlights alone, the soundtrack is 5.1 channel encoded. If the Dolby Digital indicator and the Dolby Pro Logic indicator light simultaneously, the soundtrack is a 2 channel encoded Pro Logic track. Dolby Digital is alternatively called AC-3, an earlier designation for this software scheme.

•Cinema: Not an actual mode itself, “cinema” is an equalization (“EQ”) curve designed to reduce excessive high frequencies and the consequent harshness sometimes encountered in movie soundtracks originally mixed strictly for theatrical release. “Cinema” can be used in conjunction with Dolby Digital or Dolby Pro Logic.

•Dolby Pro Logic: This mode is available for all analog inputs and for digital inputs playing standard CD audio (PCM). This is the surround mode of choice for most videotapes, surround-encoded TV broadcasts, and some music CDs and movie soundtracks.

•Symphony Hall: This mode emulates the expansive space of a typical concert hall and is available for all two-channel sources, analog as well as PCM digital. The subwoofer channel is

not active in this mode.

•Stadium: Again available only for analog and PCM digital sources, this mode re-creates the soundfield typical of a large outdoor sporting event with long reverberation times and somewhat rolled-off high frequency response. Again, no subwoofer output.

•Jazz Club: An analog and PCM digital source enhancement, this mode simulates the intimacy of a very small acoustic space. Again, no subwoofer output.

•5 channel stereo: This makes full use of a home theater speaker system when playing two-channel only (analog or PCM digital) sources. It is ideal for parties or any other time when you want to get the broadest possible sound distribution from a non-surround encoded source.

•2 channel stereo: The preferred mode for traditional two-channel stereo listening. This mode is available for both analog and digital sources. Most multi channel Dolby Digital and DTS signals can also be mixed-down into a 2-channel format.

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Adcom GTP-760 owner manual
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GTP-760 specifications

The Adcom GTP-760 is a high-performance audio/video surround processor that combines advanced technology with ease of use, delivering an exceptional home theater experience. At the heart of the GTP-760 is its extensive support for various audio formats, including Dolby Digital, DTS, and MPEG. This enables the processor to provide an immersive audio experience, allowing users to enjoy their favorite movies, music, and games with remarkable clarity.

One of the standout features of the GTP-760 is its multiple input options. It comes equipped with a range of analog and digital inputs, including HDMI, allowing for seamless integration with a variety of audio and video sources. The HDMI inputs support 4K video pass-through and scaling, making the GTP-760 a future-proof option for home theater setups. Additionally, the inclusion of S-Video, composite, and component video connections ensures compatibility with older devices.

The GTP-760 also offers a comprehensive equalization system, allowing users to tailor their audio output to suit their room’s acoustics and personal preferences. The built-in audio DSP (Digital Signal Processor) delivers advanced sound processing capabilities, enhancing the overall listening experience. With customizable sound modes, users can select settings optimized for music, movies, or gaming, ensuring versatility for different content types.

User friendliness is a focal point of the GTP-760 design. The intuitive front panel controls and the ergonomic remote make navigation a breeze, while the backlit display provides clear visibility, even in low light environments. Additionally, the processor features programmable memory settings, allowing users to save different configurations for quick access.

Beyond audio performance, the GTP-760 offers robust video processing capabilities. It supports various video formats, ensuring high-quality picture output regardless of the source. The unit’s solid build quality and premium components contribute to its reliability and longevity.

In conclusion, the Adcom GTP-760 is a well-rounded surround processor that delivers outstanding sound quality and video processing capabilities. Its variety of input options, advanced audio technologies, and user-friendly design make it an excellent choice for both amateur and avid home theater enthusiasts. With its ability to enhance audio-visual experiences, the GTP-760 stands out as a remarkable addition to any entertainment system.
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