20 Most Recent Infinity Reference 1300a Car Audio Amplifier Questions & Answers

First off which fuse is it? The inline fuse from the battery or the amplifiers power supply fuse? Blowing the main fuse from the battery is caused by either the load (your amp) drawing too much current or you have a short to ground somewhere. Maybe there is a tear in the 12Vdc line and it is shorting to the chassis of your car. If the amps power supply fuse is blowing as soon as it turns on your amp has a shorted power supply. This will require internal component changes by a technician. If it is blowing after operation at high volumes I would say change the impedance that the amp is driving. If you are at 2 ohm try to rewire your speakers for four ohm. (go from parallel to series wiring then bridge mono or operate the amp in stereo mode)

The possible area is definitely in the stanby switching circuit. A damage to the relay drive has made the power to be continuously on without the remote switch. You can have two solutions, one you can ignore the fault for the time being and connect a second relay fromt the system to trigger the relay and subsequently switch the amplifier main power. Or you must open the set and look in the remote switching area for a jammed relay, a faulty transistor drive or activation of the bias to the relay drive by a faulty component. Check this out with a good multimeter and you will solve the issue. I hope my advice helps. Good day

is your sub/speakers ok? unplug and probe the speakers to see if any of them are grounding out... or your amp my be shot...

MAKE SURE THE GROUND IS GOOD ON BODY OF CAR BOTH UNDER THE HOOD AND WHERE YOUR AMP IS GROUNDED

2 things to try, one. run your RCAs on the opposite side of the car as the positive wire. if you still hear the thumping try changing your RCAs. if you still hear the thumping, try a different anp or head unit. if you still hear the thumping, your subs are blown. best of luck

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Question edited for clarity, and order, 'make model (what it is)'. No spares suppliers listed, but try the maker on Page 13. https://www.manualslib.com/manual/76933/Infinity-Hps-250.html?page=13#manual https://www.google.com/search?q=Infinity+Systems+HPS+250+Subwoofer+parts Or any good electronics shop will have the individual part. Have you tried electrical contact cleaner?

Your question can't be answered without knowing the impedance of the subs. Are they 1 ohm, 2 ohm, 3 ohm, or 4 ohm coils on those dvc subs? Are you saying your amp IS 2 ohm stable?

hi, if thats a dodge this might be it.. Re: Infinity Gold AMP Wire Diagram Well I don't particularly care for Haynes manuals, but my FSM's did not have anything either. I found this in thejeep cherokee haynes manual and it says that it is for 97 and later models but see if it is close. it looks like there are 2 harnesses so I will list them seperately: Hartness 1: [7] Left Soundbar Speaker (+) BR/YL [8] Left Soundbar Speaker (-) BR/LB [5] Left Front Door Spkr (+) DG [1] Left Front Door Spkr (-) BR/RD [9] Right Soundbar Speaker (+) DB/WT [3] Right Soundbar Speaker (-) DB/OR [6] Right Front Door Spkr (+) VT [2] Right Front Door Spkr (-) DB/RD [4] Power Amp Relay Feed DG/RD Harness 2: [05] Right Soundbar Spkr (+) TN/RD [13] Right Soundbar Spkr (-) TN/BK [06] Left Soundbar Spkr (+) WT/TN [14] Left Soundbar Spkr (-) WT/BK [11] Passenger Door Spkr (+) LB/RD [10] Passenger Door Spkr (-) LB/BK [04] Drivers Door Spkr (+) DG [12] Drivers Door Spkr (-) LG/RD [01] Power Amp Feed [02] Power Amp Feed [07] Power Amp Ground [08] Power Amp Ground The tweeters run in parallel off of the door speakers.... If I can help any more let me know. -Mike. https://forums.off-road.com/jeep-mid-sized/105694-infinity-gold-amp-wire-diagram.html

I'm assuming you're talking about the factory Infinity amplifier from a late 90's Chrysler/Dodge vehicle, and likely trying to reuse or repurpose this into another vehicle? See the attached photos for the wiring diagram of the stereo circuit with the amplifier, as well as the wiring pin-outs for both connectors

Could be a component inside the unit breaking down

FACTORY AMPLIFIER IS MADE TO DRIVE THE SPEAKER IN THE VEHICLE IF NO SOUND YOUR AMP NEED REPLACEMENT

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