Nexo GEO S12 Series System Manual

SYSTEM CHECK ALIGNMENT GUIDELINES
System Manual GEOS12 LS18 Page 61 / 95
7 SYSTEM CHECK ALIGNMENT GUIDELINES
The NEXO TD Controllers factory delay presets are optimised to provide the best possible crossover between the GEO S12
and LS18 systems. The reference point for this adjustment is the front of each cabinet. (This means that the internal delays
needed to achieve a correct time alignment are set for cabinets standing next to each other with both fronts aligned). We
recommend that the system is adjusted so that arrivals from GEO S12 and LS18 are coincident at a fairly distant listening
position.
7.1 GEO S12 Vertical Cluster design
Cluster design must be done with NS-1, which provides very intuitive and fast method to determine all cluster geometry
parameters in relation to venue where cluster is implemented.
NS-1 is a freeware available for all NEXO users at nexo-sa.com
IMPORTANT
Never install a GEO S12 and/or LS18 cluster without checking its acoustical performances and mechanical
safety in NS-1 prior to installation.
Please contact your local distributor for assistance and/or training NS-1.
7.2 Stacked LS18 and Flown GEO S12
In the example below, r
1
being the distance from GEO S12 array to listener position, and r
2
being the distance from LS18 to
listener position, the distance difference is then r
1
–r
2
(specified meters or feet).
r
1
> r
2
, the delay should be set on the LS18 NEXO TDcontroller channel.
r
1
< r
2
, the delay should be set on the GEO S12 NEXO TDcontroller channel
To convert the result in time delay (specified in seconds), apply:
t = (r
1
-r
2
)/C r
1
and r
2
in meters, C (sound speed)  343 m/S.
Set the units to meters, feet or seconds according to your preference). Delay will have to be adjusted according to the distance
difference r
1
–r
2
(see figure below).
r
1

Nexo GEO S12 Series Specifications

General

Brand	Nexo
Model	GEO S12 Series
Category	Speaker System
Language	English