L-Acoustics 8XT Coaxial Enclosure User Manual page 12

8XT
COAXIAL ENCLOSURE
user manual
VERSION 1.2
Figure 4: Connecting two 8XT in parallel to the LA4 amp channel #1
!
To ensure both high performance and safety, L-ACOUSTICS
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 length versus wire cross-section. Two cases are
possible depending on the impedance load connected to the LA4 (8 Ω for a single 8XT enclosure, 4 Ω for two 8XT
enclosures in parallel):
Table 1: Maximum wire length versus cross-section for Damping Factor > 20
Cross-section
mm 2 SWG
2.5 15
4 13
6 11
10 9
According to the calculation in Table 1, one SP25 cable (4 mm², 25 m) can be used to power two 8XT in parallel (4 Ω
load) with a damping factor still greater than 20.
8XT_UM_ML_1.2
SP.7, SP10, or SP25
Length for one 8XT / 8 Ω
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
SP.7,
SP10,
or SP25
® recommends the exclusive use of
Length for two 8XT / 4 Ω
ft m
100 15
160 25
240 37
390 60
ft
50
80
120
195
10 en