L-Acoustics 12XT, Руководство пользователя

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12XT 12XT 12XT 12XT
COAXIAL ENCLOSURE COAXIAL ENCLOSURE COAXIAL ENCLOSURE COAXIAL ENCLOSURE
user manual user manual user manual user manual
VERSION 1.3
12XT_UM_ML_1-3 w w w . l - a c o u s t i c s . c o m 16
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Table 3: Accessible parameters in ‘‘HIGH-PASS’’ mode for PASSIVE 12XT
Accessible (O) and blocked (X) parameters
LA4 Inputs/Outputs Elements to connect
Preset
assignments*
Mute Gain Delay Polarity
IN A Input signal A IN_A X O O O
IN B Input signal B IN_B X O O O
OUT 1 PASSIVE 12XT PA_A O O O O
OUT 2 PASSIVE 12XT PA_A O O O O
OUT 3 PASSIVE 12XT PA_B O O O O
OUT 4 PASSIVE 12XT PA_B O O O O
* IN: input signal. A, B: channel A, B. PA: passive enclosure.
Note: The complimentary SB118 subwoofers must be connected to additional LA4 or LA8 amplified controllers. Please
refer to the ‘‘SB118’’ user manual .
7.2.3 “HYBRID’’ mode
7.2.3.1 Description
In ‘‘HYBRID’’ mode the PASSIVE 12XT and SB118 enclosures are connected to the same LA4 amplified controller thus
limiting the number of required units.
The bandwidth of the system is extended down to 32 Hz.
The recommended ratio is one PASSIVE 12XT for one SB118.
7.2.3.2 Connecting the PASSIVE 12XT and SB118 to the LA4
The PASSIVE 12XT and SB118 enclosures connect to the LA4 outputs as follows: channels 1 and 3 are dedicated to one
SB118 enclosure each, and channels 2 and 4 to one PASSIVE 12XT each. Therefore, a single LA4 amplified controller
can drive up to two PASSIVE 12XT and two SB118 enclosures (see Figure 8).
A maximum of one SB118 enclosure can be connected per LA4 output channel 1 or 3.
Note: The system resources are optimized for two PASSIVE 12XT and two SB118 per LA4.
Figure 8: Two PASSIVE 12XT and two SB118 enclosures connected to an LA4 controller
IN A
OUT 2 (IN A)
OUT 1 (IN A)
OUT 3 (IN B)
IN B
Note: This drawing is only a cabling scheme and does not represent a valid configuration.
OUT 4 (IN B)
!
IMPORTANT