User manual

UANPAV V1.0 PSI Audio AVAA User Manual 9
possibility that the AVAA will show signs of instability. If this is the case the best is to try and position
the AVAA in another location. If this is not feasible it is possible to reduce the sensitivity of the AVAA
so that it remains stable in its environment.
In all “normal” rooms the AVAAs can be used with its full sensitivity and with potentiometer turned
fully clockwise on “CAL” position
5.4 Voltage Selector / Mains Fuse
See point 1 in the Quick Start section 4.
6 Installation
6.1 Environment
The AVAA is designed to be effective in a living room or studio that typically have a Rt60 of less than
2 seconds for frequencies above 200 Hz.
In highly reverberating rooms please use potentiometer as described under 5.3 Sensitivity
Potentiometer.
6.2 Positioning
The effect of the AVAA depends on the acoustic characteristics of the room as well as the position of
the loudspeakers.
The most effective position for the AVAA is in the corners of the room and you may take some time
to determine which corners are the most effective and either on the floor on under the ceiling.
Consider the following when positioning:
- AVAAs positioned in corners with rigid walls are in general more effective as rigid wally are more
reflective in low frequencies
- AVAAs positioned in corners behind the source are in general more effective than other corners
6.3 Power connection
It is very useful to have all AVAA’s connected to a main switch. This will, allow to easily turn the
system on and off if you wish to hear the effect.
6.4 Mounting
Remember that any object positioned above floor level represents a fall hazard. Make sure your
AVAA are always securely positioned or mounted in a stable position and can’t fall. In particular
make sure no child can make them fall.
Sensitivity set to “CAL” for:
floor surface > 10 m
2
RT
60
< 2 seconds at f > 200 Hz
Sensitivity set to “MIN” for:
floor surface < 5 m
2
RT
60
< 2 sec. at f > 200 Hz