Interfire Audio A1000.2 User's Manual
Contents
1. FIG 2 4CHANNEL SYSTEM WIRING DIAGRAM 45989950945 GAIN BASS GAIN GROSSER CROSSOVER 9 INPUT 9 INPUT T CH2 n CH4 12V REM GND CAR STEREO HEAD UNIT AUTO ANTENNA LEAD FIG 2 5 SYSTEM WIRING DIAGRAM CH 1 2 LINE INPUT r CROSSOVER n 4 1 2kHz CH2 CH3 CH4 CH5 CH6 12V REM GND L L CAR STEREO HEAD UNIT AUTO ANTENNA LEAD FIG 2 SPEAKER CONNECTIONS This amplifier can operate in one two or three channel mode The minimum impedance for single channel bridged mono operation is 4 or 8 ohms Tri channel power is referred to stereo and mono at the same time Minimum impedance remains the same for three channel front subwoofer systems as long as proper passive crossovers are used Connect right and left speaker wire to corresponding speaker output terminals of the amplifier Be sure to have the positive wire from the speaker connected to the positive speaker terminal of the amplifier and the negative wire from the2. xa RAT ev oav os GAIN BASS m CROSSOVER CROSSOVER 4 LINE INPUT 4CHANNEL cH 1 2 LINE INPUT A500 4 A700 4 A900 4 SPEAKER da OED A500 4 A700 4 SPEAKER BRIDGED i af FUSE D T 5 SPEAKER iometa AOSE 2 0 tenta x 13 TROUBLE SHOOTING GUIDE This section provides you with acatalog of amplifiersymptoms and theirprobable causes and solutions Before you consult thislisting make surethe vehicle s electricalsystem is working properly by verifying that otherelectrical items e g headlights windows etc Still function correctly SYMPTOM No Audio Distorted Audio Audio Level Low Audio Lacks External Fuse Blowing Whining noise on audio with engine running Ticking noise on audio with engine running PROBABLE CAUSE SOLUTION Low or N C Remote Turn on connections Check remote turn on voltage at amp and head unit Blown Fuse Power wires not connected Replace with new fast blow fuse Check butt splices or solder joints Check ground and battery connections Blown or non speakers Use VOM or DVM to measure speaker connected coil impedance check speake
3. interfire 2 CHANNEL 4 CHANNEL 5 CHANNEL AUTOMOTIVE AMPLIFIER A300 2 500 2 A700 2 1000 2 1100 2 2200 2 500 4 A700 4 A900 4 A800 5 ALL INSTRUCTION MANUAL Congratulations on your Purchase Your new high fidelity bridgeable stereo amplifier is designed to deliver maximum enjoy ment and one year of troublefree service Pleasetake a few moments to readthis manual thoroughly It will explain the features and operation of yourunit and help insure trouble free installation Features Four Class AB High Current Dual Discrete Drive Stages Class AB Technology MOSFET PWM Power Supply Bridgeable amp TRI Mode Operation Continuously Variable 12dB Octave High Pass amp 12dB Octave Low Pass Crossover Subwoofer Variable Crossover for Deep Bass Control Enhanced Bass Boost 12dB 50Hz Silver Plated RCA Power amp Speaker Terminal Soft Start amp Muting Overload Thermal and Short Circuit Protection Power Protection indicator Bass Level Remote Control 16 4Fit A1100 2 A2200 2 Precautions Read First f afterreading the directions you feel uncomfortable about installing theamplifier in your car ornot equipped orcompetent to doso you shouldhave the amplifierinstalled by an authorized installer It s your car Negative battery terminal must be disconnected before any electrical connections are made Be surechoose a locationthat pro
4. SUBWOOFER FIG 3 ADJUSTMENTS 1 Set to the H P F position when the amplifier is used to drive a tweeter midrange system The frequencies below the crossover point will be attenuated at 12dB octave Permits adjustment of the crossover frequency by rotating the knob to select any frequency between 80Hz to 1 2kHz amp 50Hz to 500Hz as the crossover point 2 Set to the L P F position when the amplifieris used to drive a subwoofer The frequencies above the crossover point will be attenuated at 12dB octave Permits adjustment of the crossover frequency by rotating the knob to select any frequency between 50Hz to 250Hz amp 50HZ to 500Hz as the crossover point 3 Set to the OFF position when the amplifier will be used for driving full range speakers The full frequency band width 20Hz 20kHz will be output to the speakers without high or low frequency attenuation 4 Level adjustment The sensitivity adjustment is to allow the amplifier to work with many different brands of head units It allows input signal to vary between 350 millivolts to 5 volt from the head unitor other signal processor Start by setting the sensitivity adjustment to the MIN 3 volts Using a cassette or compact disc that you are familiar with turn on head unit to the 3 4 volume setting Slowly turn up sensitivity adjustment towards the MAX 200 millivolts using aflat head screw driver Stop turning on the onset of distortion and turn back just a
5. 4Ft N A N A N A N A YES LOWPASS FILTER 50Hz 250Hz 50Hz 250Hz 50Hz 250Hz 50Hz 250Hz 50Hz 250Hz 50Hz 250Hz VARIABLE VARIABLE VARIABLE VARIABLE VARIABLE VARIABLE 2 1 2 280 2 1 2 2 BOHz 1 2kHz BOHz 1 2kHz HIGH PASS FILTER VARIABLE VARIABLE VARIABLE VARIABLE N N decr o RESPONSE 10Hz A0kHz 10Hz 40kHz 10Hz 40kHz 10Hz 40kHz 10 2 40 2 INPUT SENSITIVITY 200 9V EST NOTE Specifications amp design subject to change without notice for improvements 15 SPECIFICATION AMPLIFIER A500 4 700 4 900 4 800 5 60W x 4 4 OHMS 0 05 THD 60W x 4 90W x 4 110W x 4 160W x 1 4 OHMS Bridged 0 5 THD 105W x2 175W x2 225W x2 Koc MAXIMUM OUTPUT POWER 500 Watts 700 Watts 900 Watts 800 Watts BASS LEVEL REMOTE CONTROL 16 4Ft N A N A N A N A 50Hz 500Hz 50 2 500 2 50Hz 500Hz 50Hz 250Hz VARIABLE VARIABLE VARIABLE VARIABLE 50Hz 500Hz 50Hz 500Hz 50Hz 500Hz 80Hz 1 2kHz RIGH RASS FILTER VARIABLE VARIABLE VARIABLE VARIABLE FREQUENCY RESPONSE 1dB 10Hz 40kHz 10Hz 40kHz 10Hz 40kHz 10Hz 40kHz LOW PASS FILTER SIGNAL TO NOISE gt 100dB gt 100dB gt 100dB gt 100dB INPUT SENSITIVITY 200 9V 200 9V 200 9V 200 9V INPUT IMPEDANCE 22k Ohms OPERATION VOLTAGE NEGATIVE GROUND DC 12V DC 12V DC 12V DC 12V 22k Ohms 22k Ohms 22k Ohm
6. speaker must connect with the negative speaker terminal of the amplifier Reversing any of these connections will result in the speaker cones moving out of phase which causes bass cancellation See Fig 3 Speaker Output Connections 2 SPEAKER WIRING DIAGRAM 1 SPEAKER BRIDGED LI 3 CH WOOFER 2CH 1CH FIG 3 SPEAKER CONNECTIONS 4 CH SPEAKER WIRING DIAGRAM 2 SPEAKER BRIDGED Q SPEAKER Gone eo 25 2 4 Ohms SUB WOOFER LN S SPEAKEI Wome eHe BRIDGED 0 FIG 3 SPEAKER CONNECTIONS 5 CH SPEAKER WIRING DIAGRAM 3 SPEAKER BRIDGED SPEAKER 5 SPEAKER STEREO FUSE tcn sno SPEAKER renee Q eo 2 4 Ohms 2 4 Ohms 2 8 Ohms Zo 1CH 3 CH 4 CH acusa 0 8 SUBWOOFER 10 SUBWOOFER
7. bles Itis 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 caraudio shop Connect the low level line level RCA cables from the head unit or signal processor to the line level inputon the amplifier See Fig 2system wiring diagrams POWER CONNECTIONS It is importantto 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 a5mm AWG5 or larger automotive grade cable which will withstand friction and heat to safe grade against fires occurring as aresult of short circuiting GND Connect proper gauge ground wire to the amplifier GND terminal Locate the position on the chassis of the car to which the amplifier isto 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 Theframe on most cars and trucks is not grounded tothe chassis body Use Solder or clamp ring to connect the ground wire Pre drill the prepped chassis to bolt the ground ring terminal with nut bolt and lock washers Insulat
8. e metal and connector with paint or silicon to prevent rust and oxidation Silicon also works great to preventnuts 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 unitand 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 ofthe amplifier If the head unit is notequipped with a remote antenna output locate a wire that is controlled by the accessory position of the key Itis 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 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 carin the case of a short Connect fuse holder to battery but do notinstall fuse atthis time 2CHANNEL SYSTEM WIRING DIAGRAM 048 1248 250 LP F H P F 1 2KHz LP F FLAT BASS L crossover CH1 CH2 12V REM GND CAR STEREO HEAD UNIT AUTO ANTENNA LEAD o
9. ince 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 throughthe 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
10. r wiring connections Input Sensitivity not set properly or damaged speaker cones See adjustment procedure and check each step Inspect each speaker for damage and repair or replace suspected component Low turn on voltage Refer to head unit owner s manual Mute circuit on head unit is on Check electrical system for low voltage Check ground connection Speakers wired with wrong polarity causing cancellation of bass frequencies Check polarity of wires from amplifiers to each speaker as defined by the system design Check battery voltage at amplifier during operation Incorrect wiring or short Refer to electrical installation and circuit check each installation step Amplifier is picking up alternator noise Install an in line noise filter on the head unit s power wire Check alternator routing diodes or voltage regulator for proper operation Check all grounds battery voltage and RCA cables Amplifier is picking up radiated spark noise Check RCA audio cable Install an in line noise filter on the head unit s power wire Check spark plug wires 14 SPECIFICATION AMPLIFIER A500 2 700 2 A1000 2 A1100 2 4 5 0 05 THD 75W x2 100W x2 150Wx2 225Wx2 225Wx2 340Wx2 4 OHMS Bridged 0 5 THD 150W x 1 250W x 1 350W x 1 550W x 1 550W x1 1100W x 1 MAXIMUM OUTPUT POWER 300 Watts 500 Watts 700 Watts 1100 Watts 1100 Watts 2200 Watts BASS LEVEL REMOTE CONTROL 16
11. s SPEAKER IMPEDANCE STEREO DRIVEN 4 Ohms 4 Ohms 4 Ohms 4 Ohms FUSE RATING 40A 40A 40Ax2 40Ax2 DIMENSIONS W mm x mm x D mm 250x59x280 250x59x320 250x59x400 250x59x380 NOTE Specifications amp design subject to change without notice for improvements 16
12. slight The 3 4 volume setting is now the maximum volume for the head unit goal is to keep the level control to the lowest setting yet still have enough signal to drive the amplifier This is done to prevent over driving the amplifier and to keep system noise to a minimum It is important not over drive speakers at point of distortion this will cause permanent damageto the speakers Also if the amplifier itself is over driven it could be damaged 5 The BASS function can be selected to increase low frequency response output or decrease frequency response output The BASS function will be working at only OFF or L P F position BASS is adjustable from 0 12dB boost at 50Hz 11 FRONT REAR PANEL 088 4248 250z HPF ev GAIN BASS L crossover 2CHANNEL LINE INPUT A300 2 A500 2 A700 2 A1000 2 FAT REMOCON oi 1240 BASS L crossover GAIN LINE INPUT A1100 2 A2200 2 PER FUSE 2 9 2 69 300 2 500 2 SPEAKER af gon 2 A700 2 A1000 2 A1100 2 unen 5 lt gt lt gt ee 2200 2 12 FRONT REAR PANEL SOM 500 FLAT BASS GAIN
13. 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 Ifthe 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 CONTINOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER 100dB MAY CAUSE PERMANENT HEARING LOSS HIGH POWERED AUTOSOUND SYSTEM MAY PRODUCE SOUND PRESSURE LEVELS WELL OVER 130dB USE COMMON SENSE AND PRACTICE SAFE SOUND INSTALLATION MOUNTING 1 Afterreading precaution decide where you are going to installthe unit Also see Fig 1 2 Once thelocation has beendetermined place theamplifier into position Using a felttip pen or pencil mark the fourholes to bedrilled for mounting NEVER use theamplifier 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 wantto mount the amplifier to MDF or wood panel drillfour 3 0m m diameter holes into mounting surface 4 If possible test the system to ensure itis operating correctly before final mounting of the amplifier 5 Mount the amplifierusing the supplied4 self tapping screws INSTALLATION DIAGRAM CONNECTIONS INPUT CONNECTIONS This amplifier will accept low level inputs only Low level is the same as line level The low level signal is carried through RCA ca
14. vides substantial ventilation for theamplifier The most preferred locations would be in yourcar s trunk underthe front seats on the back wall of a truck The location chosen should provide at least 2 of clearance above the amplifierfor adequate ventilation Ifthe amplifieris tobe mounted vertically besure thatit isin aplace where adequate air will flow alongthe length ofits heatsink finsfor cooling NEVERmount theamplifier upside down this willcause theheat torise backinto the amplifier causing thermalshutdown or possible permanent damage NEVER mount the amplifier ina locationthat issubject todirect sunlightor exposedto moisture Be sureto mount theamplifier to astrong solid surfacewhich will notgive way underthe stress of asudden stop oraccident Make sure thatthe mounting screws will not penetrate the gastank brake and fuellines wiring or othercritical parts ofyour car wheninstalled 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 notthe electronics In case ofa 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 s
Download Pdf Manuals
Related Search