1. Sound
Frequency- effectively the pitch of the sound. Measured in Hertz (Hz)
Bass- low frequency sounds
Treble- high frequency sounds
Equalisation (EQ)- the control of the tone of a sound
Gain- Input level (sensitivity) control.
Pan- where the sound is placed in the stereo
Health and safety:
Noise levels- making sure you have PAPERS/DOWN/MUTED, when testing or
plugging /unplugging equipment.
Don’t stand up next to the speakers.
Manual handling:
Work in pairs when lifting main speaker status.
Electrical safety: microphone
Make sure you don’t touch loose wires. Instruments
CD player/ iPod
Typical audio chain:
XLR/Jack cable
XLR/Jack cable
XLR/Jack cable
INPUT
SOUND
MIXING DESK
RECORDING
EQUIPMENT
MONITOR
FOTI SPEAKERS
OUTPUT
2. Active and Passive
Active (built-in-amplifier)
Passive (speaker cable)
Speakon connector
Active:
(Positive) Neat
(Positive Compact
(Positive) All in one
(Positive) Less equipment
All cabling in the same place
(Negative) more cables by each unit
(Negative) Heavy (because there is so much in it)
Passive:
(Negative) more equipment/ separate unit
(Negative) more cable runs
(Positive) less cabling to each unit
(Positive) more lightweight
(Positive) don’t need power: sockets everywhere
Full range system: 3 pin XLR
Power
Supp Supply
Each speaker has
an an ON and OFF
SUBS
Reproduce the bass
SUBS
Reproduce the bass
TOP
(MIDTOP)
Reproduce treble
and midrange
Master/Desk
stereoout left
LINK
INPUT
Power
Supply
X= Over/Out
INPUT
Each speakerhasan on
and off switch.