L-Acoustics 115XT HiQ Manuel Utilisateur page 12

115XT HiQ
COAXIAL STAGE MONITOR
User Manual
VERSION 1
Figure 3: Connecting two 115XT HiQ in parallel to an LA4 amplified controller
!
To ensure both high performance and safety, L-ACOUSTICS recommends the exclusive use of high-
quality, fully insulated speaker cables made of stranded copper wire.
In order to preserve a high damping factor it is desirable to keep loudspeaker cables as short as
possible and with a gauge offering low resistance per unit length.
IMPORTANT
The following table provides information regarding the recommended wire cross-section versus length. Two cases are
possible depending on the impedance load value connected to the LA4 (8 ohms for a single 115XT HiQ enclosure, 4
ohms for two 115XT HiQ enclosures in parallel):
Table 1: Minimum wire cross-section versus length for Damping Factor > 20
Cross-section
2
mm SWG
2.5 15
4 13
6 11
10 9
According to the calculation in Table 1 one SP25 cable (4mm², 25m) can be used to power two 115XT HiQ in parallel
(4ohm load) with a damping factor still greater than 20.
HiQ_UM_ML_1
Length for one 115XT HiQ / 8 ohms Length for two 115XT HiQ / 4 ohms
AWG m
13 30
11 50
9 74
7 120
w w w . l - a c o u s t i c s . c o m
ft m
100 15
160 25
240 37
390 60
ft
50
80
120
195
10 en