I have a Kicker IX406 that distorts the right front channel/speaker. Trouble shooting found a bad solder joint in the cross over circuit that caused the affected coil to become loose and may have shorted prior to discovery/repair. Once repaired the sole speaker attached through the crossover still distored. I moved the complete circuit to the right front amp output and the distortion ceased. So my question is can this Amp be repaired easily/cost effectively? I've been unable to locate any schemantics or repair manuals.
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Swap left and right speakers. Does it stay with the speakers if so you have a blown or damaged speaker. If not then swap input cables only. If it stayed with the speaker you now know the amp has a bad channel and needs repair. If it swapped again you either have a bad cable or issue with your source unit.
How I tune:
turn amp all way down or disconnect rcas for now, turn up stereo to a song with some bass you listen to and crank it as loud as you would (not max about 3/4, use this to tune inside speakers (don't have bass maxed/distortion...)). Now dial in amp: turn up a bit probably to 1/4 or so then tune frequency I'd usually say around 100hz, then adjust gain again to where it sounds good...be easy on them for awhile to let them break in (don't blast them all day!). Usually bass boost is only 1 frequency with a curve (40hz or something)...so I try to not use it much....
The amp is going into protect on the two channels powering the speakers. Turn down the gain on those two channels. You also may want to consider crossing over the speakers a little higher than they are now.
The rating on those speakers are way too high. 6.5's and 6x9's will take 50-100 clean watts tops before they start to break up.
The best solution to get it perfect is....unplug the subs. Turn the gain on the speaker channels all the way down. Then turn up the deck 80% as high as it will go. Play a song. Then increase the gain on the amp until the speakers are as load as they go without distortion. Shut off the car, replugg in the subs and do the same thing. Gain on sub channels all the way down, deck then to 80%, find a bass heavy song, then turn gain up until subs become distorted. If you do this procedure your speakers and subs will be "gain matched" to the proper levels.
If you want to use two Kicker Coaxial or Component Speakers on a single channel of your amplifier wire the speakers in series. This will improve the sound quality, lower the total harmonic distortion and lessen the thermal load at the amplifier. This may prevent an amplifier from shutting down, due to over-current protection circuitry.....so definetly on the SUB terminals as this channel provides the better bass response........
You've got the gain to high and the amplifier is clipping the sound frequency causing it to distort. Possible problems are you have a bad speaker(s) and the reading is below 4 ohms. Each of the 4 channels can only take 4ohms. If your bridging 2 speakers to this amp you have to also make sure you are only bridging 4ohms anything lower will cause the amp to overheat. Dont put 2 speakers in parallel on one channel or you will definitely have more problems.
Give that new sub a chance to "break in". New speakers require a few hours of use before the voice coil(s) and spider break in and began operating at their best performance. Is the box within the operating specs of the sub? Is this a ported box; if so you will here some turbulance type noise from the port. What type of distortion are you hearing? Alternator noise(dentist drill like sound) would only be noticable through a sub at lower volumes due to the frequency response of a sub. Is the amps lowpass crossover turned on?
That's not a 1000w amp. It's a 400 watt amp when loaded to it's lowest rated load. If you have one speaker per channel (the only safe load if you have single 4 ohm coil speakers), you're only getting 165 watts/speaker. It's probably distorted because you're driving it to clipping.
Nothing should have been damaged.
I would assume the speaker output shorted in one way or another...did you have a speaker hooked up?
You most likely blew the output transistors and they ALL need to be replaced as one going bad will kill the rest since they're so sensitive.
At least the PSU, seemingly, wasn't damaged.
Contact www.audiotekx.com, ask for Jason, he's excellent at repairing amps and has great pricing.