MACKIE Two-Way Passive Loudspeakers and Subwoofer S500 - Manual (Page 10)

S500 Series Loudspe
ak
ers
10
S500 Series Loudspeakers
The S500 Series loudspeakers have 1/4" and NL4
input and thru connectors. The connectors are wired in
parallel, so use only one of the input connectors.
Normally, one would use only one thru connector,
but it is possible to use both thru connectors. Keep in
mind that all of the speakers are connected in parallel
through these connectors, so you want to be sure not to
go below the minimum impedance requirement of the
amplifier.
Use heavy gauge, stranded wire for connecting
a speaker to the output of a power amplifier.
Do not use coaxial cable like a guitar cord
to make speaker connections. They are not designed to
handle the high currents produced by a power amplifier
and can overheat. As the distance between the amplifier
and speaker increases, so should the thickness of the wire.
Speaker wire has resistance, and when electricity passes
through a resistor, power is lost. The thicker the wire, the
less the resistance it offers, and the more power actually
gets to the speaker.
Appendix B: Connections
SLEEVE
TIP
TIP SLEEVE
TIP
SLEEVE
COLD
HOT
1+
1+
1–
1–
2–
2+
TS Phone Plugs and Jacks
“TS” stands for Tip-Sleeve, the two connections
available on a mono 1/4" phone jack or plug.
They are used for unbalanced signals and speaker
connections.
1/4" TS Connector
Sleeve = Cold (–)
Tip = Hot (+)
NL4
These connectors are designed to handle the higher
currents produced by amplifiers and have a locking
feature to prevent accidental disconnections. Simply
line up the tabs on the plug with the jack on the S500
Series loudspeaker, push it in and rotate it clockwise
1/4 turn to lock it in place.
NL4 Connector
Pin 1 – = Cold (–)
Pin 1 + = Hot (+)
Pin 2 – = No Connection
Pin 2 + = No Connection
Repair
For warranty service, refer to the warranty
information on page 13.
Non-warranty service for Mackie products is
available at a factory-authorized service center. To
locate your nearest service center, visit
www.mackie.com, click “Support” and select “Locate
a Service Center.” Service for Mackie products living
outside the United States can be obtained through local
dealers or distributors.
If you do not have access to our website, you can call
our Tech Support department at 1-800-898-3211,
Monday-Friday during normal business hours, Pacific
Time, to explain the problem. Tech Support will tell you
where the nearest factory-authorized service center is
located in your area.