Chapter 3 - Setup

Channel Balance

How can you achieve optimal balance in volume lev- els from all speakers? The GFR-700 supplies individ- ual sliders and a “pink noise” test tone to aid you in balancing your speaker levels. For best results, it is recommended that you use a Sound Pressure Level (SPL) meter to precisely measure the volume levels from each speaker. However, your ear aided by ex- perimentation is ultimately the best judge. The fol- lowing is an overview of the Channel Balance menu.

To access the Channel Balance menu:

1Press the Main button on the remote control.

2 Press the Setup button.

3 Use the /buttons to select CHANNEL BAL- ANCE, then press the Select button.

4 Use the /buttons to choose from the follow- ing menu items:

TEST TONE

Generates a “pink noise” test tone that you can move manually from speaker to speaker. This neutral tone provides an effective gauge to measure volume lev- els that is more objective than a movie sound track or other variable signal. Use the /buttons to se- lect:

•On or Off

•If you select On, the test tone does not begin until you first select a speaker (see below).

•If you select Off, the currently selected audio source will be heard instead of the test tone.

L FRONT / R FRONT

Adjusts the relative volume of the left/right front speakers. Use the /buttons to select:

•-10 to +10 dB

CENTER

Adjusts the relative volume of the center speaker. Use the /buttons to select:

•-10 to +10 dB

•If you do not have a center speaker (as set on page 34), the choice will be fixed to N/A.

L SURROUND / R SURROUND

Adjusts the relative volume of the left/right surround speakers. Use the /buttons to select:

•-10 to +10 dB

•If you do not have surround speakers (as set on page 34), the choices will be fixed to N/A.

L SURR BACK / R SURR BACK

Adjusts the relative volume of the left/right surround back speakers. Use the /buttons to select:

•-10 to +10 dB

•If you do not have surround back speakers (as set on page 34), the choices will be fixed to N/A.

SUBWOOFER

Adjusts the relative volume of the subwoofer. Use the /buttons to select:

•-10 to +10 dB

•If you do not have a subwoofer (as set on page 34), the choices will be fixed to N/A.

Notes:

•You can also use the Channel Trim and Test Tone buttons on the remote control to adjust the chan- nel balance.

•Press the Channel Trim button to set the volume levels for each individual speaker.

•Press the Test Tone button to hear a test tone in each speaker.

36GFR-700 Owner’s Manual

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Adcom GFR-700 user manual Channel Balance, Test Tone, Front / R Front, Surround / R Surround, Surr Back / R Surr Back
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GFR-700 specifications

The Adcom GFR-700 is a high-performance A/V receiver that epitomizes cutting-edge technology and excellent audio capabilities for home theater enthusiasts. Designed with both versatility and user-friendliness in mind, this receiver integrates advanced features that make it a formidable choice for any modern audio setup.

One of the standout characteristics of the GFR-700 is its powerful amplification. It is equipped with a robust power supply and delivers an impressive output power, ensuring that your audio is not only loud but also clear and dynamic. Each channel is meticulously engineered to handle demanding audio frequencies, producing a soundstage that can envelop any room.

The GFR-700 is compatible with a wide variety of audio formats, including the latest surround sound technologies. It supports Dolby Atmos and DTS:X, allowing users to experience immersive 3D sound. This capability is further enhanced by advanced digital signal processing that optimally maps audio to the listening environment. The receiver also features 4K Ultra HD pass-through, HDR support, and a host of HDMI inputs, making it an ideal companion for high-definition video sources.

Connectivity is another stronghold of the GFR-700. With Wi-Fi, Bluetooth, and Ethernet capabilities, users can easily stream music from various services or their personal library. The receiver also supports multi-room audio, enabling playback in different areas of the home for a cohesive audio experience.

User-friendliness is enhanced by the intuitive interface and remote control system that simplifies navigation. The inclusion of a mobile app allows users to control the receiver from their smartphones, making adjustments a breeze, whether they're in the room or across the house.

The build quality of the GFR-700 is also noteworthy. The receiver's design incorporates heat dissipation features that maintain optimal operating temperatures, enhancing longevity. Its sleek appearance ensures it blends seamlessly with any entertainment setup.

In summary, the Adcom GFR-700 stands out in the crowded market of A/V receivers due to its powerful amplification, advanced surround sound technologies, versatile connectivity options, and user-friendly design. It is an ideal choice for audiophiles and casual listeners alike who seek to elevate their home audio experience.
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