paging lesson 1

Question 1

stereo allows the user to control

Answer 1

front, back, left and right speakers individually

Question 2

a self amplified system should be used on a system with __ or fewer speakers

Answer 2

6

Question 3

a transformer is utilized in _______ systems

Answer 3

25 and 70 volt constant voltage systems

Question 4

volume controls are __________

Answer 4

variable resistors

Question 5

what is the output of a constant voltage system?

Answer 5

25 or 70 volts

Question 6

why is the constant voltage system the preferred method for larger systems?

Answer 6

one central amp can output many signals

Question 7

ramp speed is the___________

Answer 7

increase in DB per second

Question 8

what is the function of a mixer?

Answer 8

combines multiple signals, provides input selection, and allows signal control.

Question 9

a self amplified system uses a _________ and a ________

Answer 9

line level signal and a power supply

Question 10

in a __________ each speaker gets its own amp

Answer 10

24v self-amplified system

Question 11

what is the output of a self amplified system?

Answer 11

24v

Question 12

audio ______ go in the same raceway as other class 2 and 3 devices

Answer 12

can not

Question 13

a __________ can be purchased separately to convert a conventional speaker to a speaker compatible to a constant voltage system

Answer 13

transformer

Question 14

what is zone messaging

Answer 14

picking a zone or selection of zones to communicate with

Question 15

______ volts is the most commonly used distribution system in the USA

Answer 15

70V

Question 16

in a 24v self-amplified system each speaker __________

Answer 16

gets its own amp

Question 17

a 24 v self amplified system uses _________ wires. what are they used for?

Answer 17

4
2 wires for power
2 wires for audio signals

Question 18

audio ______ go in the same cable tray as other class 2 and 3 devices

Answer 18

can not

Question 19

where would one use a 25v constant voltage system?

Answer 19

educational or institutional facilities where safety is a concern

Question 20

examples of source components are?

Answer 20

microphones, tuners, cd players… input devices

Question 21

a power supply is used in a ___________

Answer 21

self amplified system

Question 22

in a warehouse or outdoor environment your only choice to distribute the sound may be____________

Answer 22

a horn

Question 23

a self amplified circuit typically uses a _______

Answer 23

balanced signal