back the same way in which it was received. This paragraph does not necessarily apply to non-warranty service.

Note: You must have a sales receipt from an Authorized Mackie Dealer to qualify for a warranty repair.

CARE AND MAINTENANCE

Your Mackie loudspeakers will provide many years of reliable service if you follow these simple guidelines:

•Avoid exposing the loudspeakers to moisture. If they are set up outdoors, be sure they are under cover if you expect rain.

•Avoid exposure to extreme cold (below freez- ing temperatures). If you must operate the loudspeakers in a cold environment, warm up the voice coils slowly by sending a low-level signal through them for about 15 minutes prior to high-power operation.

•Use a slightly damp cloth with a mild soap solution to clean the cabinets. Avoid getting moisture into any of the openings of the cab- inet, particularly where the drivers are located.

CONNECTIONS

The C300z has 1/4" TS and Speakon™ style INPUT and THRU connectors. The connectors are wired in parallel, so use only one of the input connectors (either 1/4" TS or Speakon-style).

INPUTPARALLELTHRU

C300z Connector Panel

Normally, you would use only one THRU connector, but it is possible to use both THRU connectors. Keep in mind that all the speakers are connected in parallel through these connectors, so you want to be sure not to go below the minimum impedance requirement for your amplifier.

The C300z has a nominal impedance of 8 ohms. Two C300zs in parallel equals 4 ohms.

Three C300zs in parallel equals 2.7 ohms.

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 speakers increases, the thickness of the wire should also increase. Speaker wire has resistance, and when electricity passes through a resistor, power is lost. The thicker the wire, the less the re- sistance it offers, and the more power actually gets to the speaker.

1/4" 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 Wiring:

Sleeve = Cold (–)

Tip = Hot (+)

 

SLEEVE

SLEEVE TIP

 

 

 

 

 

 

 

 

TIP

TIP

SLEEVE

NL4-Type Plugs and Jacks

This connector is compatible with the popular Neutrik® Speakon® 4-pole plugs. These con- nectors 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 C300z, push it in, and rotate it 1/4 turn to the right to lock it in place.

NL4 Wiring

Pin 1 – = Cold (–)

Pin 1+ = Hot (+)

Pin 2 – = No Connection

Pin 2+ = No Connection

1–

1+

COLD

1–

Four C300zs in parallel equals 2 ohms.

HOT 2+

1+

2–

Need Help?

 

You can reach a technical support representative

 

Monday through Friday

 

from 7 AM to 5 PM PST at:

 

1-800-898-3211

 

After hours, visit www.mackie.com and click Support,

 

or email us at: techmail@mackie.com

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