JBL AVR580 Surround Mode Selection, Digital Audio Playback, Bass Control Ô or Treble Control

Bass Control Ô or Treble Control

Ò until the desired setting is achieved. You may also totally remove the tone controls from the circuit so that the output is “flat” at any time by pressing the Tone Mode Button 5 and then pressing the ‹/› Buttons )# so that TONE OFF appears in the on-screen display and the Lower Display Line B .

•For private listening, plug the 1/4" stereo phone plug from a pair of stereo

headphones into the front-panel Headphone Jack 4. When the headphone’s plug is connected, the word HEADPHONE will scroll once across the Lower Display Line B and all speakers will be silenced. When the headphone plug is removed, the audio feed to the speakers will be restored.

Surround Mode Selection

One of the most important features of the AVR580 is its ability to reproduce a full multichannel surround sound field from digital sources, analog matrix surround- encoded programs and standard stereo programs.

Selection of a surround mode is based on personal taste, as well as the type of program source material being used. For example, motion pictures or TV programs bearing the logo of one of the major sur- round-encoding processes, such as Dolby Surround, DTS Stereo or UltraStereo,♦ may be played in either the Dolby Digital, Dolby Pro Logic II-Movie, DTS Neo:6 Cinema, or Logic 7 Cinema surround modes depending on the source material.

NOTE: Once a program has been encoded with matrix surround information, it retains the surround information as long as the program is broadcast in stereo. Thus, movies with surround sound may be decoded via any of the analog surround modes such as Dolby Pro Logic II-Movie, Logic 7 Cinema or DTS Neo:6 Cinema, when they are broadcast via conventional TV stations, cable, pay-TV and satellite transmission. In addition, a growing num- ber of made-for-television programs, sports broadcasts, radio dramas and music CDs are also recorded in surround sound. You may view a list of these programs at the Dolby Laboratories Web site at www.dolby.com.

Even when a program is not listed as car- rying intentional surround information, you may find that the Dolby Pro Logic II, Logic 7 Enhance, DTS Neo:6, VMAx, Hall or Theater modes often deliver enveloping surround presentations through the use of the natural information present in all stereo recordings.

Surround modes may be changed at any time by using either the front panel or remote control. To select a new surround mode from the front panel, first press the

Surround Mode Group Selector

Button 7 until the desired major sur- round mode group such as Dolby, DTS or Logic 7 is selected. Next, press the

Surround Mode Selector Button 8

to choose the specific individual surround mode.

To select a surround mode using the remote, press the button for the major surround mode group that includes the mode you wish to choose from: Dolby w, DTS Surround x, DTS Neo:6

30, Logic 7 y, Stereo 29 or DSP Surround k. The first press of the but- ton will show the current mode from that group if it is already in use, or the first available mode if you are currently using another mode. To cycle through the avail- able modes in that group, press the but- ton again until the desired mode appears in the Lower Display Line B and the on-screen display.

As the surround modes change, the current mode will light in orange in the Surround Mode Indicators ˘ list on the front panel.

The Dolby Digital, Dolby Digital EX and DTS 5.1, DTS-ES Matrix and DTS-ES Discrete modes may only be selected when a digital input is in use. In addition, when a digital source is present, the AVR580 will automatically select and switch to the correct mode, regardless of the mode that has been previously selected. For more information on selecting digital sources, see the Digital Audio Playback section below.

When the 6-channel/8-channel direct inputs are in use there is no surround processing, as these inputs take the ana- log output signals from an optional, external DVD-Audio or SACD player, or another source device and carry them straight through to the volume control without any further digital processing.

When your AVR580 has been configured for 6.1/7.1 operation with both left and right surround back speakers installed, selecting a 6.1-channel surround mode, such as Dolby Digital EX or DTS-ES 6.1 Matrix, will result in both surround back speakers playing the same information for the surround back channel. The sur- round back left and right speakers will only play discrete information when

a 7-channel mode is selected, such as Logic 7/7.1 Cinema or Music, or

7-Channel Stereo, or if the 8-Channel Direct Input source is in use and is providing discrete information for the surround back channels.

To listen to a program in traditional two- channel stereo, using the front left and front right speakers only (plus the sub- woofer, if installed and configured), press the Stereo Button 29 until SURR OFF appears in the Main Information Display ˜, or press the Surround Mode Group Selector 7 until the Stereo modes appear in the on-screen display and Lower Display Line B. Next, press the Surround Mode Select Button 8 until SURROUND OFF appears in the on- screen display and Lower Display

Line B.

Digital Audio Playback

Digital audio is a major advancement over older analog surround processing systems such as Dolby Pro Logic. It delivers five dis- crete channels: left front, center, right front, left surround and right surround. Each channel reproduces full frequency range (20Hz to 20kHz) and offers dramati- cally improved dynamic range and signifi- cant improvements to signal-to-noise ratios. In addition, digital systems have the capability to deliver an additional channel that is specifically devoted to low-frequency information. This is the “.1” channel referred to when you see these systems described as “5.1,” “6.1” or “7.1”. The bass channel is separate from the other chan- nels, but since it is intentionally band- width-limited, sound designers have given it that unique designation.

Dolby Digital

Dolby Digital is a standard part of DVD, and is available on specially encoded LD discs and satellite broadcasts and it is a part of the high-definition television (HDTV) system.

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