Channel Trim

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.Press the button when you have finished making the left front level adjustment. Repeat steps 5 and 6 until you have completed setting the level for each speaker in your system.

6.When you have finished adjusting the level for all the speakers in your system, press the button to select the return to main menu option.

7.Press the select or menu button to return to the main menu, or press the menu button twice to exit. You can also perform this calibration at any time by using the built in test tone, by pressing the ch. cal button on the GTP-880 remote control.

To set channel levels using the test tone function:

1.Press the ch. cal button on the remote (make sure to press the main button first). This will produce a display that shows:

When you select this function, the GTP-880’s test tone will automatically cycle every few seconds through all the speakers you have told the GTP-880 are connected to the system. The unit cycles through the speakers in the following sequence:

left front, center front, right front, right surr(ound), right back (surround), left back (surround), left surr(ound), subwoofer

2.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.

While you are adjusting each speaker, the test tone will remain on that channel until you have stopped changing

the volume for a few seconds. The unit will then resume cycling the test tone from speaker to speaker, until you touch the ch. cal button again.

Note: Speakers that you selected “none” for in the speaker config menu will not appear.

3.Press the ch. cal button on the remote control again to exit the test tone function.

Channel trim allows you to fine tune the channel levels to compensate for various soundtrack anomalies. For example, you may play a movie and find that the center (dialogue) channel is weak, making the movie hard to follow. Simply trimming the center channel up a dB

or two can fix the problem. Or another film may have substantially more bass than normal and trimming the subwoofer channel down a dB or two may help balance the sound correctly.

This function can be accessed in two ways. You can press the ch. trim button on the remote control, or you can access this feature through the main menu. The channel trim menu is shown below.

To adjust channel trim from the main menu:

1.While playing the program material with output that you wish to fine tune, 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 until the channel trim menu is selected. The cursor on the OSD should be pointing to the channel trim menu and channel trim appears on the front panel display.

3.Press select to enter the channel trim menu. The channel trim menu appears on the front panel display and

40 ADCOM GTP-880 Owner’s Manual

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.