JBL AVR580 manual

When NONE is selected, no signals will be sent to the center channel output. The receiver will operate in a “phantom” cen- ter channel mode and center channel information will be sent to the left and right front channel outputs. When only front left and right speakers are used, with no center or surround speakers, VMAx is a good alternative mode.

When you have completed your selection for the center channel, press the ¤ Button n on the remote to move the cursor to SURROUND.

Press the ‹/› Buttons o 37 on the remote to select the option that best describes the surround speakers in your system based on the speaker definitions shown on this page.

When SMALL is selected, low-frequency surround channel sounds will be sent to the subwoofer output only. If you choose this option and there is no subwoofer connected, you will not hear any low- frequency sounds from the surround channel.

When LARGE is selected, a full-range output will be sent to the surround chan- nel outputs, and NO surround channel signals will be sent to the subwoofer output.

When NONE is selected, surround sound information will be split between the front left and front right outputs. For optimal performance when no surround speakers are in use, the Dolby 3 Stereo mode should be used.

When you have completed your selec- tions for the main surround channels, press the ¤ Button n on the remote to move the cursor to SURR BACK. This line serves two functions in that it not only configures the setting for the surround back channels when they are present; it also tells the AVR580’s pro- cessing system to configure the unit for either 5.1 or 6.1/7.1 operation.

Press the ‹/› Buttons o 37 on the remote to select the option that best describes the speakers in use at the left and right back surround positions based on the definitions on this page:

When NONE is selected, the system will adjust so that only 5.1-channel sur- round processing/decoding modes are available and the surround back amplifier

channels will not be used. When this is the case for your system, you may wish to take advantage of the availability of this amplifier channel pair for use in pow- ering a second set of speakers that have their source selected by the AVR580’s multiroom control system. See page 37 for more information.

When SMALL is selected, the system will adjust so that the full complement of 6.1/7.1 surround processing/decoding modes are available, and low-frequency information below the crossover point will be sent to the subwoofer output. If you choose this option and there is no subwoofer connected, you will not hear any low-frequency sounds from the sur- round back channel.

When LARGE is selected, the system will adjust so that the full complement of 6.1/7.1 surround processing/decoding modes are available, and a full-range signal will be sent to the surround back channels, with no low-frequency informa- tion sent to the subwoofer output.

When you have completed your selection for the back surround channels, press the

¤Button n on the remote to move the cursor to SUBWOOFER.

Press the ‹/› Buttons o 37 on the remote to select the option that best describes your system.

The choices available for the subwoofer position will depend on the settings for the other speakers, particularly the front left/right positions.

If the front left/right speakers are set to SMALL, the subwoofer will automati- cally be set to SUB, which is the “on” position.

If the front left/right speakers are set to LARGE, three options are available:

•If no subwoofer is connected to the AVR580, press the ‹/› Buttons o 37 on the remote so that NONE appears in the on-screen menu. When this option is selected, all bass information will be routed to the front left/right “main” speakers.

•If a subwoofer is connected to the AVR580, you have the option to have the front left/right “main” speakers reproduce bass frequencies at all times, and have the subwoofer oper- ate only when the AVR580 is being

used with a digital source that con- tains a dedicated Low-Frequency Effects, or LFE, soundtrack. This allows you to use both your main and subwoofer speakers to take advan- tage of the special bass created for certain movies. Press ‹/› Buttons

o 37 on the remote so that SUB (LFE) appears in the on-screen menu.

•If a subwoofer is connected and you wish to use it for bass reproduction in conjunction with the main front left/right speakers, regardless of the type of program source or Surround mode you are listening to, press the ‹/› Buttons o 37 on the remote so that SUB LFE+L/R appears in the on-screen menu. When this option is selected, a full-range signal will be sent to the front left/right “main” speakers, and the subwoofer will receive the bass frequencies below the frequency selected, as described below.

When all initial speaker “size” settings have been made, you now have the option to take advantage of the AVR580’s Triple Crossover system, which allows individual crossover settings to be made for each speaker grouping. The low-fre- quency crossover point is set by the design of your speakers. Depending on the design and driver complement of your speakers, it is defined as the frequency which is either the lowest possible fre- quency the speaker is capable of repro- ducing, or the frequency at which sound is sent to the speaker’s internal low- frequency driver, as opposed to the midrange driver. Before making any changes to the settings for the crossover point, we suggest that you find the crossover point for the speakers in each of the three groupings, front left/right, center and surrounds, by looking at the specifications page of the speakers’ owner’s manual, by getting that informa- tion from the manufacturer’s Web site, or by contacting your dealer or the manufac- turer’s customer service department. You will need this figure to accurately config- ure the next group of settings.

The factory default setting for all speaker positions is 100Hz. If that setting is acceptable for all channels, then no adjustments are needed and you may skip this section. However, should you wish to change one of the settings, please proceed by pressing the ⁄

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