Download IF-3X Manual

Mobile Electronic Crossover Network
INTERFIRE AUDIO INC.
10110 Santa Fe Springs Road
SANTA FE SPRINGS
CA90670 USA
IF-3X
INSTRUCTION MANUAL
FERTURES
• Extreme Crossover Slope Design
• Extreme Bass(Bass Boost) Circuitry
• Extreme Electronic Crossover Design
• Phase Inverter For Subwoofer Output
• Remote Subwoofer Output Level Control
• Pulse-Width Modulated( PWM ) Power Supply
• Frequency Multiplier For Front Channel
• Stereo/Mono Subwoofer Output
• Front/Rear/Subwoofer Pre-amp Input and Outputs
• 2 High-Pass and 1 Subwoofer Outputs
• Mixed Input/Output Switch
• Stereo Subwoofer Output With Remote Gain Control
• Adjustble 12/18 dB Per Octave Slope Subwoofer
• Adjustble 12/18 dB Per Octave Slope High•pass
• Adjustble Output Level
• Gold Plated RCA Connectors
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CONTROLS, INDICATION AND TERMINALS
CONTROLS, INDICATION AND TERMINALS
1. Power Input Terminal(+12V)
2. Remote Turn-on Input Terminal(REMOTE)
3. Ground Input Terminal(GND)
4. Power Indicator
5. Left/Right Front Channel Signal Inputs
6. Combiner(REAR-IN/MIX)lnput Switch
1. Left/Right Rear Channel Signal Inputs
12
20
8. Left/Right Mixed Line-in/Out Terminals
10
9. Mixed Sub-in/Line-out Switch
13
6
5
21
22
11. Rear Channel High-Pass Frequency Control
12. Front Channel High-Pass Frequency Multiplier Switch
11
13. Front Channel High-Pass Filter Slope Selector
14
7
10. Front Channel High-Pass Frequency Control
23
9
14. Rear Channel High-Pass Fitter Slope Selector
15. Subwooter Frequency Control
24
17
16
16. Bass-Boost Frequency Control
15
17. Bass-Boost Gain Control
8
25
4
19
18
19. Subwoofer Stereo/Mono Switch
26
1
27
18. Phase Inverter Switch
2
3
20. Front Channel Output Gain Control
21. Left/Right Front Channel Output Terminals
22. Rear Channel Output Gain Control
23. Left/Right Rear Channel Output Terminals
24. Subwoofer Output Gain Control
25. Left/Right Subwoofer Output Terminals
26. Subwoofer Channel High-Pass Filter Slope Selector
27. Remote Subwoofer Gain Control Jack
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3
TROUBLE SHOOTING GUIDE
SPECIFICATIONS
SYMPTOM
PROBABLE CAUSE
1. No power
• Check all the ground, B + and remote terminals for tight
connection.
• Check all fuses
• Use a Volt/Ohm meter to check all power wire
connections to see the System is receiving + I 2V
Power Input :
lnput Current :
Distortion :
Frequency Response :
S/N Ratio :
Separation :
2. The IF-3X power indicator going
off repeatedly when the audio
system is on
• Check the battery voltage, if low, recharge or replace
• Check if the lF-3X has good ground connection with
bare metel of the Vehicle chasis
3. The IF-3X heats up quickly even
when the audio system is at
moderate volume
• Check all ground connections of the entire system for
good contact with bare metal
• Check for speaker short: Disconnect speaker wire from
amplifier, test speaker and wire with a Volt/Ohm meter,
if there is speaker and metal contact slightiy enlarge the
speaker mounting holes, if there is a short in the
speaker wiring, replace the entire speaker wire or reinsulate any exposed wire with electrical tape.
4. When the engine is running the
audio system has a whining noise
that remains unchanged or
disappears with the increase of
audio volume.
• Check all the power wires to see if they are all
connected directly to the battary.
• Check all the ground connections of the entire system
for good contact with bare metal of the vehicle chassis.
• Check if the source unit and the IF-3X are grounded at
the same reference point.
5. When the engine is running, the
audio system has a ~iining noise
that increases or decreases with
the volume of all program sources
(wheather radio, tape or CD)
• Install a 10amp in-line filter on the red power wire of the
IF-3X If the whining noise persists, check the alternator
doides and the voltage regulator.
6. When the engine is running, the
audio system has a whining noise
that increases or decreases with
the tape mode volume ONLY.
• This is commonly known as “radiated” noise, it is NOT
caused by the IF-3X and thus is beyond the scope of
this manual, please contact your local retailer/installer
for assistance.
7. Obvoius disforton at low volume
• Output level of various channels not compatible, refer to
section titled FINAL SYSTEM CHECK.
8. Overall sound effect good, but
bass abnormal(more bass at the
two extreme settings of the
balance control than at the center
setting)
• The subwoofers are “out-of-phase” with each other, thus
canceling the bass when the balance control is at the
center position, Check the wiring from the amplifier to
the subwoofers (positive “+” to positive “+” and negative
“-” to negative “-”)
4
14.4 Volts DC
0.5 Amps Max.
0005% THD at 1V Output Level
10-30 ~Hz°æ1dB
>100 dB(A-Weighted)
60 dB
Crossover Frequencies
Front-High Pass (X1): 50-500 Hz
(X10) : 0.5-5 kHz
Rear-High Pass :
50-500 Hz
Subwoofer-Low Pass : 40-250 Hz
Subwoofer-Subsonic : 20 Hz
Crossover Slope Rate
High Pass :
12/18 dB Per Octave
(2nd/3rd Order)
Low Pass :
12/18 dB Per Octave
(2nd/3rd Order)
Bass Boost :
Single Octave
0-+12 dB Boost
Variable Frequency 70-250Hz
Phase-Subwoofer :
0º-180º
Input Impedance :
30 kOhms
Output Impedance :
100 Ohms
Output Gain :
1:1(0 dB)
Output Voltage Level : 5 Volts Max.
Dimensions:
5 2/10”(W)X1 7/10”(H)x6 5/10”(L)
(130x43x 164mm)
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