Turbosound TCS-152 ユーザーズマニュアル

 

This document explains how TCS loudspeakers can be arrayed and the reasons for the rotatable 
horns in some models. The TCS-122 and TCS-152 both feature Turbosound’s unique Dendritic high 
frequency waveguide. This can be rotated for two reasons: 

1.  To allow a single speaker to be mounted horizontally but still retain the wider horizontal 

pattern, or 

2.  To allow two or more speakers of the same to be arrayed with minimal interference 

 
The second application is explained here in detail.  
 
One of the benefits of the Dendritic waveguide is its exceptional coverage pattern and sharp edge-of-
pattern cut-off as demonstrated in Flex Array. The sharp cut-off works either vertically or horizontally, 
depending on which way the horn is rotated.  
To explain this further, the TCS-122 and TCS-152 
feature exceptional pattern control either left/right or 
up/down depending on how the horn is rotated. This 
allows them to be arrayed with adjacent speakers 
without lobes or destructive interference. So the true 
arrayable benefit of the Dendritic is 

in the physical 

plane of the Dendritic device

 i.e. either left/right or 

up/down depending on orientation. The other plane 
of the Dendritic device functions in a similar way to a 
standard horn. 
The diagram here shows a TCS-122 with the horn in 
two possible orientations. The one on the left is the 
typical orientation, so for example the TCS-122/94 
model has a dispersion pattern of 90 degrees wide 
by 40 degrees in the vertical. The box on the right 
shows the box with the horn rotated to give 40 
degrees in the horizontal and 90 degrees in the vertical.   
So the speaker on the left has a very controlled vertical pattern, whereas the one on the right (the 
same speaker with the HF horn rotated) has a very controlled horizontal pattern.  
The TCS-122 and TCS-152 are both available with three dispersion options: 60° x 40°, 90° x 60° and 
60° x 40°. However note that only the 40 degree boxes benefit from being tightly arrayed, i.e with the 
sides touching. So in a cluster of two or three tight packed boxes, you should use either the 60° x 40° 
or 90° x 40° models and the horns should be orientated to give 40° dispersion in the horizontal plane. 
The TCS-122 and TCS-152 are double trapezoidal boxes and it is this feature, in combination with the 
rotatable horns that gives you the flexibility to build so many cluster options. The simple rule is that 
the side that is touching the adjacent speaker needs to be orientated to 40 degrees.  
The following options only apply to TCS-122 and TCS-152 models with Dendritic horns. The TCS-1561 
and TCS-61 use conventional horns.