Nexo NX241, Руководство пользователя

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GENERAL DESCRIPTION
USER MANUAL LOAD1_80
DATE: 30/08/00 12:48
User set-up, Array EQ
A basic Array EQ is currently implanted in the NX241. The cut off frequency of a Low-shelving filter
is factory tuned for each cabinet setup. The user has access to the gain of this filter. Some more
sophisticated User EQ is currently under development. They will require the use of the upcoming
expansion board. Please read the readme.txt that comes along with every new software upgrade to
track eventual changes.
Delay & Polarity inversion
Input to output delay without filtering is 1.4ms (due to the digital processing). This delay will prevent
compatibility with analogue TDcontrollers.
A
NALOGUE AND DIGITAL
TD
CONTROLLER SHOULD NOT BE
MIXED IN THE SAME
SYSTEM.
Factory set-up
Note that each output may contain a small phase adjustment delay at the crossover point. Also, a
polarity inversion may be performed. These adjustments are part of the factory set-ups and are
necessary to time-align the corresponding cabinet that is selected.
User set-up
Following user delay adjustment is possible:
GLOBAL: Affecting all channels at the same time (delaying all the system for application as delay
towers…)
MAIN: Affecting only CH3&4 for passive set-up and CH2, 3&4 for active channels (delaying the
main system if Sub basses are located behind it)
SUB: Affecting only CH1&2 for passive set-up and CH1 for active setup (delaying the Sub-bass
cabinet if main system are located behind it)
GLOBAL and MAIN/SUB delays are cumulative up to 150m per channel (about 450ms, 500 feet).
Audio Input/Output
Balanced Audio Input
The analogue inputs are on 3 pin female XLR connectors with positive and negative signal
polarities on pins 2 and 3 respectively. Pin 1 is coupled at high frequencies to the chassis using a
capacitor to limit screen currents, and to the analogue ground with a jumper link.
The input signal can be adjusted in MENU 1.1 HEADROOM in order to avoid clipping of the A/D
converter. See corresponding paragraph (MENU section)