Bose LT 4402, LT 9702, LT MB24 III Acoustical Specifications and Wiring, Recommended Wire Gauges

Acoustical Specifications and Wiring

Recommended Wire Gauges

The loudspeakers should be connected to the amplifier outputs with heavy-gauge wire. To minimize power loss, larger diameter wire should be used for longer lengths. The following chart can be used as a guide.

Length of Wire	Wire Gauge
25 feet	16
40 feet	14
60 feet	12
100 feet	10
150 feet	8

Note: All wiring shall conform to applicable local and/or national electrical codes.

Verify that the polarity of the amplifier outputs are connected properly to the loudspeaker.

Internal Configurations

All Panaray® loudspeakers ship with a selectable internal crossover.

Each speaker ships in the passive position, but you can change the configuration from passive to bi-amped or bi-amped dual mid-range (LT 3202®-III only).

•In passive mode — the internal passive crossover network is utilized, and a single amplified signal is connected to the loudspeaker. This requires only one set of input connections and one amplifier channel.

•In bi-amplified mode — the mid-frequency and high-frequency drivers are accessed through separate pins on the NL8 connector. Two sets of connections and two amplifier channels are required. Bi-amplified mode allows additional control of the balance between the mid-frequency and high-frequency levels.

•In bi-amplified dual mid-range mode — the mid-frequency and high-frequency drivers are accessed through separate pins on the NL8 connectors. Three sets of connections and three amplifier channels are required. Bi-amplified dual mid- range allows independent control of two sets of V2 mid-frequency drivers as well as control of the high-frequency driver.

Note: There are no passive components in line when bi-amp or bi-amp dual mid-range configurations are selected.

All Panaray LT loudspeakers require active equalization. Do not operate the loudspeakers without the proper active equalization for the particular loudspeaker and operating configuration. Failure to do so may result in permanent damage to the loudspeaker.

See the Active Equalization section for more details.

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