Lexicon DC-1 Manuel d'utilisateur télécharger pdf (Page 33)

DC-1 Version 4 Digital Controller

System

Configuration

Subwoofer Frequency Response

The low pass filter attenuates high fre-

quencies at 24dB per octave. The values

given are for the 6dB point.

Subwoofer Output

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. All summing and filtering is performed in the digital

domain. You can select four different crossover points (OFF, 40, 80 or

120Hz) for the subwoofer. Although you can 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. For any 5.1 channel input, selecting NO routes the LFE (.1 channel) to

any front speaker set to LARGE.

Selecting THX CONFIG from the SPEAKER SETUP menu automatically

sets the speaker selections to the traditional configuration for THX listening.

This configuration automatically sets rears to NONE and all of the filters to

80Hz. These settings are not adjustable.

Selecting SURROUND EX from the SPEAKER SETUP menu (available as of

software Version 4) automatically sets the speaker selections for a THX

SURROUND EX setup with two side and two rear speakers, and with all

filters set to 80Hz. These settings are not adjustable.

THX Configuration

When DC-1 input and output levels are set properly, the entire system will

be calibrated to play films at the level intended by the director. Setting the

output levels is easy with a Sound Pressure Level (SPL) meter. Using the

DC-1’s internally generated calibration signal, adjust the level of each

output to the same relative level (75dB).

Setting

Output Levels

SURROUND EX

Configuration

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 65 66

Pas de commentaire

Lexicon DC-1 Manuel d'utilisateur Page 33