Quest Engineering QTA 6060M User Manual - page 14
QTA
6000 Series
User Manual
User Manual
Q-Tech Commercial Series
QTA 6060M/6120M/6250M
12
This example utilizes the combining feature of the
Quest mixer amplifiers . The drawing below shows
the equipment connections for two hotel ballrooms,
separated by an operable wall . The hotel needs to
be able to have the audio system operate as one
large unit (wall open) or two discreet systems (wall
closed) . As indicated in the example, a BGM CD player
is shared between the two 120W, via a “Y” cable,
connected to input 6 of each mixer amp .
The Bridge terminals of both amplifiers are
connected together, through a DPST switch that
makes (combines) or breaks (separates) the Bridge
connections between the amplifiers . When the switch
is closed, any audio signal into either amp will be
present at both amplifiers’ speaker outputs .
A volume control and DPST switch (see drawing
for clarity) controls the background music level
and turns the music on or off in each room .
For emergency evacuation purposes, a signal
from the hotel’s fire alarm system is connected
to channel 1 of both amplifiers, with the mute
sensitivity adjusted as needed . All other
channels are set for mute receive and will mute
when the siren tone is present on channel 1 .
Dipswitch Settings
Dipswitch “A” 1-6 2-6 - On
Dipswitch “B” 1-8
Dipswitch 1 - (Set To The Required Gain)
Dipswitch 2 - “Mic”
Dipswitch 3 - “Mic”
Dipswitch 4 - “Mic”
Example 2
Example 2 - Hotel Room Combining Using Two QTA 6000 Series