JBL HLA 4895, Руководство пользователя

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Section 5. - INPUT / OUTPUT CONNECTOR PANELS AND
CABLING
Speaker cables terminate at the speakers with 8-conductor Neutrik NL-8 connectors. One cable reaches
from the amplifiers to a single 4895 full range speaker. Short jumper cables then connect additional 4895 full-
range speakers in parallel to the first. Connecting 4 speakers in this manner divides the amplifier’s 4-ohm power
by 4.
One cable must reach from the amp rack to every 4897 subwoofer. Jumping sub-woofers in parallel
reduces the amplifier’s damping characteristics and is not recommended.
4895 full-range speaker connections on the rear connector panel:
Two (2) Neutrik NL-8 connectors in parallel are wired as follows :
* Lows to conductor pair 2 +/-,
* Midrange to conductor pair 3 +/-,
* Highs to conductor pair 4 +/-
4897 sub-woofer connections on the rear connector panel:
Two (2) Neutrik NL-8 connectors in parallel are wired as follows
* First sub-woofer driver to conductor pair 1 +/-
* Second sub-woofer driver to conductor pair 2 +/-
Other connectors besides the Neutrik NL-8 can be custom-ordered.
Examples include the ITT Cannon EP series of 4, 6 and 8-conductor connectors.
JBL offers two cables to its customers:
JBL Part No. Description Length Use
3805N 8-conductor 13-ga. 5 ft.* Array jumper cables
Cable w/Neutrik
connector
3850N 8-conductor 13-ga. 50 ft. Cross-stage cable and
Cable w/Neutrik flying arrays
connector
(*Longer cable required for vertically-stacked 4895’s)
NL-8 Speakon Couplers can be used to extend cables by joining two together. For flying array “mults”,
custom harnesses can be fabricated using connectors from manufacturers such as Veam and Socapex. Multi-
conductor 12-gauge cable can be used with fan-out and fan-in NL-8 tails.
Amplifier rack speaker cable panels with multi-conductor connectors can be wired with 3-foot (1
meter), 4-pair fan-out, with labeled and color-coded MDP banana jacks. The minimum recommended panel is 4
circuits of Neutrik NL-8 Speakon formatted as 2 circuits for 4895 full-range, and 2 circuits for 4897 subwoofer
outputs.