Appendix Apreset Description; [Sb18_60] Or [Sb18_100]; [Sb18_60_C] Or [Sb18_100_C]; Appendix Brecommandation For Speaker Cables - L-Acoustics SB18 User Manual

APPENDIX A PRESET DESCRIPTION

[SB18_60] or [SB18_100]

The [SB18_60] preset provides the subwoofer enclosures with an upper frequency limit at 60 Hz.
The [SB18_100] preset provides the subwoofer enclosures with an upper frequency limit at 100 Hz.
It is used for SB18 subwoofers deployed as single elements or arrays in standard configuration.
Loudspeaker elements
SB18
SB18
SB18
SB18

[SB18_60_C] or [SB18_100_C]

The [SB18_60_C] preset provides the subwoofer enclosures with an upper frequency limit at 60 Hz.
The [SB18_100_C] preset provides the subwoofer enclosures with an upper frequency limit at 100 Hz.
They both feature optimized delay settings for subwoofers deployed arrays in cardioid configuration.
Loudspeaker elements
Reversed SB18
SB18
SB18
SB18
APPENDIX B
Cable quality and resistance
Only use high-quality fully insulated speaker cables made of stranded copper wire.
Use cables of gauge offering low resistance per unit length and keep the cables as short as possible.
The following table provides the recommended maximum length depending on the cable cross-section and on the
impedance load connected to the amplifier.
Cable cross-section
mm 2 SWG
2.5 15
4 13
6 11
10 9
NomProduit_UM_0.1
Amplifier outputs Channels
OUT 1
OUT 2
OUT 3
OUT 4
Amplifier outputs Channels
OUT 1
OUT 2
OUT 3
OUT 4
RECOMMANDATION FOR SPEAKER CABLES
8 Ω load
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
Default parameters
Routing Gain
SB IN A 0 dB
SB IN A 0 dB
SB IN B 0 dB
SB IN B 0 dB
Default parameters
Routing Gain
SR
SB
IN A 0 dB
SB
SB
Recommended maximum length
4 Ω load
ft m
100 15
160 25
240 37
390 60
Delay Polarity Mute
0 ms + ON
0 ms + ON
0 ms + ON
0 ms + ON
Delay Polarity Mute
ON
ON
0 ms +
ON
ON
2.7 Ω load
ft
ft m
33
50 10
53
80 17
80
120 25
130
195 40
13