PHS3000.1
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PHS5000.1
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PHS8000.1 Manual 3
THE RIGHT POWER SUPPLY
To ensure normal operation, adequate power must be available to drive your vehicle’s electronic
equipment, both car components and car accessories.
When designing electrical systems, most manufactures do not accommodate for the power demands of
high performance audio components. Such components increase the load placed on the vehicle’s
electrical system. It is imperative to balance the power needs of audio components with what your
vehicle’s electrical system can produce.
Upgrading your vehicle’s electrical system is most crucial to the success of high power audio systems.
When upgrading a vehicle's electrical system, consider the following:
A. HIGH OUTPUT ALTERNATORS
High output alternators are available from car audio dealers and auto parts stores. These products are
sold complete with installation kits. High output alternators allow faster charging of the batteries and more
energy for your vehicle’s audio system.
B. REGULATORS
Regulators are designed to maintain the output voltage of alternators at one level or set-point. Low
set-point will not allow for faster charging. High set-point might damage your vehicle’s electrical system.
Earthquake recommends that you consult with a qualified auto technician for level setting.
C. BATTERIES
Batteries are your power storage tanks. Adding a second battery will increase the amount of listening
time especially when your vehicle is off. The most preferred method of connecting two batteries to the
vehicle charging system is to use a two-way battery isolator.
D. DUAL BATTERY ISOLATORS
Isolators are available in car audio and automotive stores and most car accessory stores. Prices are very
affordable and units are sold complete with application instructions.
E. STIFFENING CAPACITORS
Stiffening capacitors are capable of delivering lots of energy in very short amounts of time. A stiffening
capacitor installed in parallel with the battery stabilizes the current and provides the instant energy
demanded by high power amplifiers.
BEFORE YOU BEGIN
