Lexicon DC-1 owner manual Subwoofer Output

Installation and

Calibration

Lexicon

Sides This menu sets the system for your particular side speaker configuration. Systems with side speakers should be designated as STANDARD (LARGE or SMALL) or DIPOLE (LARGE or SMALL). DIPOLE indicates a THX speaker configuration, and causes the unit to mute the rear outputs when either THX effect is used. When STANDARD SMALL or DIPOLE SMALL is highlighted, press SELECT to display and adjust the highpass filter for the side outputs. Choices are: OFF, 80, 100 or 120Hz.

Selecting NONE mutes the side outputs and disables any effect parameters related to side speakers.

Rears In the Dolby Digital version of the DC-1, the active selections are LARGE and SMALL. Systems that utilize full-range rear speakers should select LARGE to direct a full-range signal to them. SMALL should be selected when filtering is desired. (Off, 80, 100 and 120Hz are available as settings for the -3dB point).

Selecting NONE mutes the rear outputs and disables any effect parameters related to rear speakers.

Subwoofer Output

Subwoofer Frequency Response

Use of the subwoofer output is specified here. Selecting YES, then pressing SELECT allows you to display and adjust the crossover frequency for the subwoofer output. The subwoofer output is created by summing the front, left, center and right outputs, followed by a 24dB/octave lowpass filter. For

5.1effects in the Dolby Digital version, the two surround channels and the LFE channel are also summed. Both the summing and filtering are per- formed in the digital domain. You can select three different crossover points (80, 100 or 120Hz) for the subwoofer. Although you can also elect to bypass the crossover and run a full range output if your subwoofer has an internal crossover, it is generally best to use the crossover in the DC-1.

NO mutes the subwoofer output and disables the Subwoofer Level param- eter.

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