Interfire Audio A800.5, A1000.2, A500.2, A1100.2, A500.4 User Manual

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5 (1)

2 CHANNEL / 4 CHANNEL / 5 CHANNEL

AUTOMOTIVE AMPLIFIER

A300.2 / A500.2 / A700.2

A1000.2 / A1100.2 / A2200.2

A500.4 / A700.4 / A900.4 / A800.5

INSTRUCTION MANUAL

Your new high fidelity bridgeable/stereo amplifier is designed to deliver maximum enjoy ment and one year of trouble free service. Please take a few moments to read this manual thoroughly. It will explain the features and operation of your unit and help insure trouble free installation.

• Four Class ''AB'' High-Current Dual Discrete Drive Stages.

Class ''AB'' Technology MOSFET PWM Power Supply.

Bridgeable & TRI-Mode Operation.

Continuously Variable 12dB/Octave High Pass & 12dB

/Octave Low Pass Crossover.

• Subwoofer Variable Crossover for Deep Bass Control.

• Enhanced Bass Boost +12dB @ 50Hz.

• Silver Plated RCA, Power & Speaker Terminal.

Soft Start & Muting.

Overload, Thermal and Short Circuit Protection.

Power & Protection indicator.

Bass Level Remote Control(16.4Fit) - A1100.2 / A2200.2

If after reading the directions you feel uncomfortable about installing the amplifier in your car, or not equipped or competent to do so, you should have the amplifier installed by an authorized installer. It's your car!

• Negative battery terminal must be disconnected before any electrical connections are made.

• Be sure choose a location that provides substantial ventilation for the amplifier. The most preferred locations would be in your car's trunk, under the front seats or on the back wall of a truck.

The location chosen should provide at least 2" of clearance above the amplifier for adequate ventilation.

If the amplifier is to be mounted vertically be sure that it is in a place where adequate air

will flow along the length of its heatsink fins for cooling.

NEVER mount the amplifier up side down, this will cause the heat to rise back into the amplifier causing thermal shutdown or possible permanent damage.

NEVER mount the amplifier in a location that is subject to direct sunlight or exposed to moisture.

Be sure to mount the amplifier to a strong, solid surface which will not give way under the

stress of a sudden stop or accident.

Make sure that the mounting screws will not penetrate the gas tank, brake and fuel lines, wiring or other critical parts of your car when installed.

1

• NEVER operate the amplifier without the proper power and ground wire, 10 gauge minimum.

• NEVER operate the amplifier without proper fusing. Fuse holder must be located with in 0.5 meters from the battery. This fuse is to protect the car not the electronics. In case of a short, the fuse will blow instead of the wire burning up. Using other than the recommended

fuse ratings at the battery and at the amplifier may cause damage to the amplifier and will void your warranty.

• Do not run wiring underneath or outside the car since exposure to the elements may cause the insulation to deteriorate rapidly, resulting in short-circuits and/or intermittent operation. all cables should be run beneath carpets and inside trim pieces.

• To help minimize interference, it is best to run the power cables along the opposite side from the audio cables .

• Whenever wires pass through metal, rubber or plastic grommets must be used to prevent the metal from wearing through the installation and causing a short.

Whenever possible, use cable ties, mounting clamps and similar wiring aids. (available

from an electrical supply or auto parts store) Adding stress relief loops to wiring is also advisable to prevent straining or breakage.

• It is best to test the system before the amplifier is mounted and interior of car is reassembled.

If the temperature inside your car reaches extreme levels(such as sitting locked up for several hours in the hot sun or exposed to a very cold winter's day)the amplifier may go into protection mode and shut off. Leave the unit off until the ambient temperature returns to normal.

The amplifier operates with any vehicle using a 12 volt negative ground system. If you are not sure of the type of electrical system in your vehicle, consult your authorized dealer or qualified mechanic.

NEVER ground the speaker leads and NEVER allow the speaker leads to come in contact

with each other. Speaker wire should be 18 gauge or larger.

Remote turn on wire must be switched by the radio does not have a remote turn on or antenna output, connect to wire that has a positive 12 volts when the key is turned to the accessory. If the amplifier does not turn off the battery will die.

Do not listen to high volumes for extended periods of time or hearing damage may occur.

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Interfire Audio A800.5, A1000.2, A500.2, A1100.2, A500.4 User Manual

MOUNTING:

1.After reading precaution, decide where you are going to install the unit. Also, see Fig.1.

2.Once the location has been determined, place the amplifier into position. Using a felt tip

pen or pencil mark the four holes to be drilled for mounting. NEVER use the amplifier as a template for drilling. It is very easy to damage the amplifier surface in this manner.

3.Remove amplifier. Drill four 3.5 m/m holes into mounting surface. If you want to mount the amplifier to MDF or wood panel, drill four 3.0m/m diameter holes into mounting surface.

4.If possible, test the system to ensure it is operating correctly before final mounting of the amplifier.

5.Mount the amplifier using the supplied 4 self tapping screws.

Self Tapping Screws

FIG.1

3

This amplifier will accept low level inputs only. Low level is the same as line level. The low level signal is carried through RCA cables. It is preferred to use low level inputs to the amplifier if the head unit is equipped with the low level outputs. If not, you can use a "high to low converter" available through your local car audio shop.

Connect the low level/line level RCA cables from the head unit, or signal processor, to the line level input on the amplifier. See Fig.2 system wiring diagrams.

It is important to have good quality power and ground connections. Remember, to complete an electrical circuit, the ground connection is just as important as the positive power connection. Before any power connections are made, disconnect the ground cable at the battery.

When the power supply lead, memory backup lead or ground lead are extended use a 5mm² (AWG5) or larger automotive grade cable which will withstand friction and heat to safe grade against fires occurring as a result of short-circuiting.

GND = Connect the proper gauge ground wire to the amplifier "GND" terminal. Locate the position on the chassis of the car to which the amplifier is to be grounded. The surface must be free from any paint or dirt. This can be accomplished with a small grinding bit, sand paper or wire wheel. NOTE: Do not ground the amplifier to the "frame of the car. The frame on most cars and trucks is not grounded to the chassis(body). Use Solder or a clamp ring to connect the ground wire. Pre-drill the prepped chassis to bolt the ground ring terminal with nut, bolt and lock washers. Insulate metal and connector with paint or silicon to prevent rust and oxidation. Silicon also works great to prevent nuts and bolts from working loose in a harsh environment of an automobile. Upon completion of the ground connection, grab wire or connector and confirm that it is a solid connection. To prevent engine noise, it is recommended to ground the head unit and other audio electronics in the same location.

REM = Connect the remote wire (power antenna output) from the head unit to the remote turn-on wire of the amplifier. If the head unit is not equipped with a remote/antenna output, locate a wire that is controlled by the accessory position of the key. It is important to have the amplifier turn off with the radio or key. If the amplifier remains on, the result will most likely be a dead battery.

12V = Connect the proper gauge power wire to the amplifier "B+" terminal. Run wire to wards the fuse holder that is no greater then 0.5 meters from the battery. Remember, the fuse is to protect the safety of the car in the case of a short. Connect fuse holder to battery, but do not install fuse at this time.

4

 

CH1

 

 

 

 

 

 

 

 

6V

0.2V

0dB

12dB

50Hz 250Hz L.P.F

H.P.F

80Hz 1.2KHz

 

 

GAIN

BASS

L.P.F

FLAT

H.P.F

 

 

CH2

 

 

 

CROSSOVER

 

 

 

 

 

 

 

 

 

 

LINE INPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH1

CH2

+12V REM

GND

 

 

 

 

 

 

 

 

- ANTENNA LEAD

 

 

CAR STEREO HEAD UNIT

 

 

AUTO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIG.2

 

 

 

 

 

5

 

 

 

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