Alto Professional TX8 - Manual (Page 4)

4
Sound Level
Permanent hearing loss may be caused by exposure to extremely high noise levels. The U.S.
Occupational Safety and Health Administration (OSHA) has specified permissible exposures to
certain noise levels. According to OSHA, exposure to high sound pressure levels (SPL) in
excess of these limits may result in hearing loss. When using equipment capable of generating
high SPL, use hearing protection while such equipment is under operation.
Hours per day SPL (dB) Example Hours per day SPL (dB) Example
8 90 Small gig 1.5 102 Riveting machine
6 92 Train 1 105 Machine factory
4 95 Subway train .50 110 Airport
3 97 High level desktop monitors .25 or less 115 Rock concert
2 100 Classical music concert
Wire Connections
You can wire your XLR or 1/4" TRS cables as balanced or unbalanced. Here are some
examples:
Determine the wiring configuration you need for your application and audio connections:
1
2
3
12
3
12
3
12
3
12
3
12
3
1
2
3
1
2
3
Tip
Sleeve
(Pin2)
(Pin3)
(Pin1, linked to Pin3)
Balanced
Unbalanced
Tip
Ring
Sleeve
Tip
Sleeve
Ring Tip
Sleeve
Ring
(Pin1)
Tip
Ring
Sleeve
1
2
3 1
2
3
Tip
Ring
Sleeve
1
2
3
Tip
Ring
Sleeve
1
2
3
Tip
Sleeve
1
2
3
1
2
3 Center
Screen
Tip
Sleeve
Tip
Sleeve
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Sleeve
Center
Screen
Tip
Ring
Sleeve
Center
Screen
1
2
3 1
2
3
(Pin3)
(Pin2)