Dual LUR66E Connections

Connections

The LUR66E rock speaker has a two-conductor speaker wire surrounded by a cable

sleeve exiting the bottom of the speaker. Any speaker cable used to extend the

connection should be of a similar size (wire gauge) running from the speaker location to

your audio system.

You may wish to purchase certified direct burial cables (environmentally rated speaker

wire) and/or a watertight burial box which also works well for the purpose of protecting

your connection. Burial cable or wire rated for in ground installation is available at most

hardware stores and home improvements outlets.

The cable or wire can be run either directly beneath the speaker into the ground, or you

can use the notch on the bottom edge of the speaker enclosure to exit the cable out the

rear for hard surface installations. When attaching the cable to the speaker, it is critical

that a high quality connection be achieved. Poor connections will lead to corrosion,

possible loss of signal and/or a decline in audio performance.

When possible, try to reduce the distance of your speaker from the audio source to

achieve the best audio results. The optimum run should be no longer than 50' for the

most favorable results. Runs longer then 50' are possible, but may require larger gauge

wire. It is recommended to use 14 or 12 gauge for speaker wire runs longer then 50'.

Ask your Dual dealer or consult a professional contractor if you have questions regarding

long wire runs.

Parallel or series wiring is commonly acceptable for the LUR66E rock speaker to gain

correct amplifier loading. For best results, avoid series wiring The LUR66E speaker with

any other speaker type or brand.

The LUR66E speaker wires are marked for polarity for determining the positive and

negative identity of the individual wires within the molded pair insulation. Polarity is

shown by either a color or stripe on the insulation, by ridges molded into one side of the

insulation, the color of the insulation case around the wire, or by the color type or colors

of the wires/wire itself (copper or silver).

Important: In order to maintain correct polarity, always connect speaker wire using

the positive (+) terminal on the receiver to the positive (+) wire on the speaker, and the

negative (-) terminal on the receiver to the negative (-) wire on the speaker.

For a typical audio installation, all speakers in a system will be connected with the same

respective polarity. For best results, crimp or solder the wires together using heat shrink

to seal each individual conductor. After the individual conductors are sealed, seal over the

pair with another layer of heat shrink.