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Interfire Audio A900.4 manual

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Table of contents for the manual

  • Page 1

    2 CHANNEL / 4 CHANNEL / 5 CHANNEL AUTOMOTIVE AMPLIFIER INSTRUCTION MANUAL A300.2 / A500.2 / A700.2 A1000.2 / A1100.2 / A2200.2 A500.4 / A700.4 / A900.4 / A800.5[...]

  • Page 2

    1 free installation. • Four Class ''AB'' High-Current Dual Discrete Drive Stages. • Class ''AB'' T echnology MOSFET PWM Power Supply . • Bridgeable & TRI-Mode Operation. • Continuously V ariable 12dB/Octave High Pass & 12dB /Octave Low Pass Crossover. • Subwoofer V ariable Crossover for Deep[...]

  • Page 3

    • 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 t[...]

  • Page 4

    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 [...]

  • Page 5

    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 When the power supply lead, memory backup lead or ground lead are extended use a 5mm²[...]

  • Page 6

    5 FIG.2 +12V REM GND AUTO - ANTENNA LEAD CH1 CH2 CAR STEREO HEAD UNIT LINE INPUT GAIN BASS L.P.F L.P.F H.P.F H.P.F 6V 0.2V 0dB 12dB 50Hz 250Hz FLAT 80Hz 1.2KHz CROSSOVER CH1 CH2[...]

  • Page 7

    6 CH3 CH4 CH2 CH1 +12V REM GND AUTO - ANTENNA LEAD CAR STEREO HEAD UNIT FIG.2 LINE INPUT LINE INPUT GAIN GAIN BASS BASS CROSSOVER CROSSOVER 6V 0.2V 0dB 12dB 50Hz 500Hz FLAT L.P.F H.P.F FLAT L.P.F H.P.F CH1 CH2 CH3 CH4 50Hz 500Hz 0dB 12dB 6V 0.2V CH 1/2 CH 3/4[...]

  • Page 8

    7 CH3 CH4 CH2 CH1 CH5 CH6 +12V REM GND AUTO - ANTENNA LEAD CAR STEREO HEAD UNIT FIG.2 6V 0.2V FLAT L.P.F 250Hz 50Hz 1.2kHz 80Hz 1.2kHz 80Hz 250Hz 50Hz H.P.F GAIN CH 1/2 LINE INPUT GAIN L.P.F L.P.F H.P.F H.P.F FLAT LINE INPUT CH1 CH2 CH3 CH4 CROSSOVER CROSSOVER 6V 0.2V FLAT 250Hz 50Hz 1.2kHz 80Hz 6V 0.2V CH5 CH6 CH 5 CH 3/4[...]

  • Page 9

    POWER B+ GND REM FUSE SPEAKER CH1 (+) (+) ON PROTECT BRIDGED CH2 POWER B+ GND REM FUSE SPEAKER CH1 (+) (+) ON PROTECT BRIDGED CH2 POWER B+ GND REM FUSE SPEAKER CH1 (+) (+) ON PROTECT BRIDGED CH2 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[...]

  • Page 10

    CH2 POWER B+ GND REM FUSE SPEAKER (+) (+) (+) (+) CH4 CH3 ON PROTECT CH1 BRIDGED BRIDGED 2 S PEAKER BRIDGED 2 S PEAKER + 1 SUBWOOFER 4 S PEAKER STEREO 6 S PEAKER HEX MODE 9 2-4 Ohms 4 CH 5 CH 4-8 Ohms 6 CH 4-8 Ohms FIG.3 CH2 POWER B+ GND REM FUSE SPEAKER (+) (+) (+) (+) CH4 CH3 ON PROTECT CH1 BRIDGED BRIDGED 3 CH SUB WOOFER 4-8 Ohms 2 CH 1CH 2-4 Oh[...]

  • Page 11

    4-8 Ohms 1 CH 2 CH BRIDGED BRIDGED POWER B+ GND REM FUSE SPEAKER (+) CH4 (+) CH5 (+) CH3 ON PROTECT (+) CH1 (+) CH2 BRIDGED BRIDGED POWER B+ GND REM FUSE SPEAKER (+) CH4 (+) CH5 (+) CH3 ON PROTECT (+) CH1 (+) CH2 BRIDGED BRIDGED POWER B+ GND REM FUSE SPEAKER (+) CH4 (+) CH5 (+) CH3 ON PROTECT (+) CH1 (+) CH2 2-8 Ohms 3 C H 3 S PEAKER BRIDGED 10 5 S[...]

  • Page 12

    11 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 2.Set to the "L.P .F" position when the amplifier is used to dri[...]

  • Page 13

    12[...]

  • Page 14

    13[...]

  • Page 15

    14 This section provides you with a catalog of amplifier symptoms and their probable causes and solutions. Before you consult this listing, make sure the vehicle's electrical system is working properly by verifying that other electrical items (e. g. headlights, windows, etc.) Still function correctly . No Audio Low or N.C Remote Tu rn-on conne[...]

  • Page 16

    AMPLIFIER 4 OHMS @ 0.05% THD 4 OHMS Bridged 0.5% THD LOW P ASS FILTE R HIGH PA SS FILT ER MAXIMUM OUTPUT POWER FUSE RAT ING FREQUENCY RESPONSE (-1dB) SIGNAL TO NOISE RAT IO (`A' WTD) INPUT SENSITIVITY INPUT IMPEDANCE OPERATIO N VOLTA GE (NEGAT IVE GROUND) SPEAKER IMPEDANCE @ STEREO DRIVEN DIMENSIONS (W mm x H mm x D mm ) A300.2 75W x 2 150W x [...]

  • Page 17

    AMPLIFIER 4 OHMS @ 0.05% THD 4 OHMS Bridged 0.5% THD LOW P ASS FILTE R HIGH PA SS FILT ER MAXIMUM OUTPUT POWER FUSE RAT ING FREQUENCY RESPONSE (-1dB) SIGNAL TO NOISE RAT IO (`A' WTD) INPUT SENSITIVITY INPUT IMPEDANCE OPERATIO N VOLTA GE (NEGATIV E GROUND) SPEAKER IMPEDANCE @ STEREO DRIVEN DIMENSIONS (W mm x H mm x D mm ) 250x59x280 250x59x320 [...]