User manual LEXICON CP-1 PLUS V2.0

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LEXICON CP-1 PLUS V2.0 : Download the complete user guide (419 Ko)

Manual abstract: user guide LEXICON CP-1 PLUS V2.0

Detailed instructions for use are in the User's Guide.

[. . . ] CP-1 Digital Audio Environment Processor Owner's Manual CP-1 Plus (Version 2. 0) Lexicon Unpacking and Inspection After unpacking the CP-1, save all packing materials in case you ever need to ship the unit. Thoroughly inspect the CP-1 and packing materials for signs of damage. Report any shipment damage to the carrier at once; report equipment malfunction to your dealer. Precautions This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. [. . . ] In TV Matrix, FRONT EFFECT has a default value of 12, which is equivalent to 6 dB of steering; at this level, central (monaural) sources are reduced in level by 6 dB in the main stereo speakers. With FRONT and REAR EFFECT both set to 0, TV Matrix becomes the equivalent of a simple non-steered Dolby Surround decoder. In the presets, this parameter is set automatically when you specify a speaker configuration with no rear channels. (See page 15. ) FILM EQ equalizes the left, center and right channel outputs to match the overall frequency balance of the original recording. Without this equalization, many films, and some television programs, will sound too bright and become fatiguing to listen to. REAR ROLLOFF sets the cutoff frequency of a low pass filter in the rear channel . This control should be set high enough to give presence and airiness to the rear sound, but not so high as to place distracting instrumental overtones or other sounds behind you. BASS SPLIT takes the low bass from the center, where it is in many film and music mixes, and distributes it instead to the left and right front-channels and the subwoofer. Bass Splitting is valuable because in many video installations the center speaker is smaller than the two main stereo speakers and less capable of handling the lowest frequencies. By directing the low frequencies to the main speakers, there is less risk of damage to a small center speaker and no loss of bass information since it will be reproduced by the main speakers. Front Effect/ Rear Effect Film EQ Rear Rolloff Bass Split Page 33 The Modes: Movie Surround Lexicon Auto Azimuth/ Balance The AUTO AZIMUTH/BAL (short for Auto Azimuth Error Correction/ Automatic Input Balance) parameter should be set to ON for films, OFF for music. When it is on, special patented algorithms continually monitor the input signal and adjust both the relative level and time offset of the two channels to keep the dialog properly centered and special effects properly localized. This automatic feature is why the CP-1 does not have or need an input balance control for Dolby Surround decoding. Generally, the correct delay is about 20 milliseconds but the setting depends on speaker set-up and source material. In general, the delay should not be so great that the rear sound becomes identifiable as a distinct source. Distance (in feet) From Rear Speakers Rear Delay 40 35 30 15 m 15 m m m 30 m m 30 m s 30 s s s s 15 s s m 25 20 15 10 5 0 0 5 10 15 20 25 30 35 40 Distance (in feet) From Front Speakers Rear Delay Settings Preferable Acceptable Rear Noise Chip Dolby Surround decoding specifications call for a special form of Dolby Btype noise reduction for the rear (surround) channel. Since Dolby Surround encoded material should generally be listened to in the ProLogic mode, this parameter is normally OFF. The SIDE SPEAKERS control turns the side speaker output on or off, widening or reducing the apparent stereo spread. The procedures for naming a new version of the program (SET PROGRAM NAME) and storing it in one of the User registers (MEMORIZE PROGRAM) are described on page 36. Side Speakers Set Program Name/ Memorize Program Page 34 25 20 s CP-1 Digital Audio Environment Processor The Modes: Movie Surround Pro Logic Parameter FILM EQ AUTO AZIMUTH/BAL BASS SPLIT REAR DELAY SIDE SPEAKERS CALIBRATE SET PROGRAM NAME MEMORIZE PROGRAM Initial Value ON ON 77 Hz 20 ms ON OFF NA NA Range Off, On Off, On Bypass, 10-170 Hz 16-32 ms Off, On Off, On NA NA Film EQ FILM EQ equalizes the left, center and right channel outputs to match the overall frequency balance of the original recording. Without this equalization, many films, and some television programs, will sound too bright and become fatiguing to listen to. The AUTO AZIMUTH/BAL parameter should be set to ON for films, OFF for music. When it is on, special digital circuits continually monitor the dialog and adjust both the relative level and time offset of the two channels to keep the dialog properly centered. This automatic feature is why the CP1 does not have or need a front-panel input balance control for Dolby Surround decoding. [. . . ] As we aren't using the radio (and, therefore, have no announcers or commercials), let's turn Speech Detection off by pressing PARAM w. We'll assume you have side speakers and skip the Panorama Effect parameters. (After all, you designed it and paid for it!) Pressing PARAM v and w lets you scroll through the available characters, and the 12 numbered keys on the remote allow you to select which characters you change. When you've named your hall, press PARAM one last time so the display reads: MEMORIZE PROGRAM, then immediately press mode #6 (HALL). [. . . ]

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