V1.22
Owners Manual SP20-Linex™
- 16 -
5.2
Wiring and connection
Speaker cable requirements
When planning speaker cable requirements, the following core diameters of 2.5 mm
21
or 4 mm
2
are recommended depending on cable length and nominal input impedance (see table 2.1).
Max cable length
Nominal input impedance Z
Recommended Core diameter
15 m
4
Ω
2,5 mm2
30 m
4 Ω
4 mm2
15 m
2 Ω
4 mm2
table 5.1 Recommended cable size
Speaker cable connector type
All Linex™ cabinets are equipped with Neutrik NL 8 Speakon receptacles.
Speaker cable extension
NL-8 Speakon couplers can be used to extend cables by joining two together.
Connector wiring
Connections are also labelled on the panel at the cabinet rear.
Each Neutrik NL-8 connector shall be wired as follows:
Frequency Band
NL8 Connector
Impedance
LF 1
Conductor pair 1+/-
8 Ω
LF 2
Conductor pair 2+/-
8 Ω
MF
Conductor pair 3+/-
8 Ω
HF
Conductor pair 4+/-
16 Ω
table 5.2 Connector wiring
5.3
Signal processing
In general all array elements (each Linex™ cabinet) of a single array has to be fed with
the same program material, the same amplifier gain, controller, limiter and EQ settings
to ensure coherent behaviour of the line array!
General guidelines
SOUND PROJECTS has configured several controller presets to cover any venue situation.
These settings will deliver the most accurate frequency response at the audience areas.
It is advised to use no or only minor EQ adjustments afterwards. One must be very precautious
because, due to venue acoustics, the frequency response may differ remarkably between places.
Therefore what seems a proper adjustment at one place may have a destructive effect at
another.
Selecting controller settings
*
SOUND PROJECTS Linex™ is standard supplied with 2.5mm
2
core diameter / Neutrik NL-8 Speakon cables
