Power Connections. Polk Audio PA D5000.5


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Power Connections. Polk Audio PA D5000.5 | Manualzz

AMPLIFIER WIRING

Power Connections

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Speaker Wiring Diagram PA D5000.5

SUB RL RR FL FR

SUB RL RR FL FR

SUB RL RR FL FR

SUB RL RR FL FR

1 ŸPLQ 2 ŸPLQ 2 ŸPLQ 1 ŸPLQ 4 ŸPLQ

4 ŸPLQ

2 ŸPLQ 2 ŸPLQ

Bridging

The amplifier is capable of bridging two full range channels into a single full range channel with higher output power.

For instance, the front channels (FL and FR) when wired as shown will increase the output power from 70W per channel to 200W per channel (for a 4 Ohm load). The same is true for the rear channels (RL and RR). You can do it with the front or rear channels, or both. The most common configurations are shown in the figure above: four full range channels and a subwoofer channel, or two bridged full range channels and a subwoofer channel.

Internal Bridging

Terminals that can be used in bridging mode are identified by the black and outlined boxes next to each terminal.

The two black boxes and the two outlined boxes work together to create an internally bridged hookup.

AMPLIFIER INSTALLATION

Mounting Locations

The location of your amplifier will depend on several important issues. Due to the low profile and compact size of the Polk Audio PA D Series amplifier, there are many possible installation locations that will yield satisfactory amplifier performance. Always mount the amplifier in a place that protects the amplifier from the elements.

In addition, mount the amplifier on a stable, flat surface.

NOTE: Mounting amplifiers upside down is not recommended and may cause premature thermal shutdown.

6 © 2011 Polk Audio—all rights reserved

WARNING!

DO NOT MOUNT any amplifier in the engine compartment. Amplifiers are not designed to endure the harsh environment of an engine compartment.

Passenger Compartment

If you are going to mount the amplifier in the passenger compartment, make sure you have adequate room vœÀÊÛi˜Ìˆ>̈œ˜°Ê7…i˜Ê“œÕ˜Ìˆ˜}ÊޜÕÀÊ>“«ˆvˆiÀÊ՘`iÀÊ>ÊÃi>ÌʜÀÊȓˆ>ÀÊ>Ài>]ʎii«Ê>ʓˆ˜ˆ“Õ“ÊœvÊ£¸ÊœvÊVi>À>˜ViÊ around the amplifier for adequate cooling.

Trunk Compartment

Mounting your amplifier in the trunk provides excellent performance as long as you do not restrict the airflow around the heatsink of the amplifier. For optimal results, mount the amplifier with as much clearance as possible.

This type of mounting will yield the best cooling due to the convection effect of the amplifier chassis.

INSTALLATION GUIDELINES

Power for systems with a single amplifier can be supplied by most automotive electrical systems. Systems with multiple amplifiers may require a higher capacity battery, alternator or the use of a storage capacitor. Polk Audio PA D Series amplifiers do generate a certain amount of heat as part of normal operation. Be sure the area around the amplifier is unobstructed to allow adequate air circulation. Remember, beach blankets, last week’s laundry, school books and homework papers placed on top of the amplifier impede air flow and may cause damage.

before mounting the amplifier.

from heat, moisture, and dirt.

from the power cables and other potentially noisy car harnesses.

6.

The amplifier should be grounded with a short, heavy gauge wire connected directly to the car

at a bare metal surface, preferably scraped body metal. Do not use factory ground locations,

seat bolts, or brackets that are spot welded.

7.

Always fuse your power connection within 12 inches of the battery terminal. Use a fuse or circuit breaker

rated slightly more than the on-board fuse(s) of the amplifier(s). The gauge of power wire used should take

into account the total current draw of the system, and the length of wire used. IASCA and other auto sound

competition organizations have charts available for this; you can also find a chart in the MECP study guide.

Minimum wire gauge recommendations for the individual amplifiers are listed on the specification page.

Always use the same gauge wire for the amplifier ground that you use for the power wire. Be sure

to examine the battery ground cable of the vehicle, and if necessary, upgrade it by adding an additional

ground wire that is the same gauge as the amplifier’s power wire. Remember, the amplifier can only

deliver its rated output when it is not current limited by the power and ground supply wires.

and 1 Ohm for subwoofer channel. Keep in mind that heat is the long-term enemy of automotive electronics

and the lower your speaker load, the more heat is generated. For low-impedance speaker applications

or restricted ventilation installations, an external cooling fan may be advisable.

9.

Battery and ground connections to the vehicle should be made with crimped ring terminals of the appropriate

size (surface area is what counts;) soldering the terminals after crimping is also recommended.

10.

Due to the high-frequency MOSFET switching power supply, filtering the power cable is not generally required

(remember that the amp can’t deliver full output if the power supply is restricted.) Proper grounding of the

signal source is mandatory for the amplifier to reach its performance peak. If the RCA inputs are not grounded

adequately via the signal source, electrical noise from the vehicle may be picked up in the system.

© 2011 Polk Audio—all rights reserved 7

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