Adcom GTP-760 owner manual

For familiar music CDs (also called PCM signals) the choices are the same as for analog inputs, Dolby Pro Logic, Dolby Pro Logic/Cinema, symphony hall, stadium, jazz club, 5-chan. stereo, and 2-chan. stereo. Because CDs do not carry Dolby Digital signals, the Dolby Digital option is not available and the GTP-760 automatically bypasses that choice.

4Dialog Enhance Button: A shelving filter with a corner frequency of 7 kHz that reduces the often excessive high frequencies on some movie soundtracks that make them fatiguing to listen to. It also provides a boost in the midrange output for center and front channel speakers.

5Dynamic Range Button and LED Indicators: This button, usable only with a Dolby Digital source, incrementally reduces the audio track’s dynamic range in four steps (full, 75%, 50%, and 25%) to allow comfortable listening under a wide variety of conditions. The normal, or default, position is full.

Although we usually prefer to reproduce a source’s full dynamic range (the difference between very loud and very soft sounds), we occasionally need to reduce dynamics. For example, when playing a movie late at night, loud explosions might wake sleeping family members. Simply turning the volume control down would probably make a whisper in the next scene inaudible. The Dynamic Range button solves this dilemma by progressively lowering the volume of loud peaks while increasing the level of softer sounds. This allows you to hear every element of the soundtrack without disturbing those around you or forcing you to strain to hear delicate nuances.

6Display Window: This shows all the pertinent information you will need to effectively use the GTP-760 on a daily basis. We carefully designed this window to display only the data you need at the time you need it. The window’s configuration will change as you ask the GTP-760 to do different things. The display normally shows the input you’ve selected. If you’re currently listening to AM or FM radio, the display shows that signal’s frequency. Additional information appears as needed and we’ll note these appearances in subsequent sections of this manual.

7Tuner Preset Buttons: These buttons allow quick access to up to 14 preselected AM or FM broadcast frequencies. To save presets, tune to the desired station and press one of these 7 buttons. Continue to hold the button until it lights and the display shows the preset number.

Use the Shift button in conjunction with these buttons to select and save presets 8-14.

8Shift (8-14) Button: This allows each of the 7 tuner preset buttons to do “double duty.” When the LED in the center of the shift button is illuminated red, the 7 tuner preset buttons activate tuner presets 8-14. When the LED in the center of the shift button is not illuminated, the 7 tuner preset buttons activate tuner presets 1-7.

9FM/AM Button: As you might expect, this button selects AM or FM. In addition to the selected broadcast frequency, a small “AM” or “FM” indicator appears in the bottom of the Display Window to confirm your choice.

10Seek/Manual Button: This controls the tuner’s scan function and working of the tuning buttons. In SEEK - goes UP to the next available station.

In MANUAL - moves UP in increments to the desired frequency you select manually.

11Tuning Down/Up Buttons: These allow easy selection of all the stations your GTP-760 can receive. Remember that these Tuning buttons will scan to the next active or to the adjacent frequency depending on how you’ve set the Seek/Manual button described above.

12Dim Button: This reduces Display window brightness for listening or viewing in a dark room. The button simply switches between full and reduced illumination.

7