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yea for sure thats a good upgrade. You shouldnt havebeen able to blow the kenwoods with 400 watts though-meaning that they probably blew from distortion which causes heat(fast) Check your gain on the amp start it out at 1/4 gain and turn up your deck to the point where you can hear distortion from your mids and highs or to the maximum level that you listen to your music at. If you're jamming out at a level that is causing distortion then you will be sending a distorted signal to the amp as well. The amp then amplifies the distorted signal through the subs which overheat and blow. So find the distortion spot and then turn it down just a little bit till it clears up your sound-then adjust your gain on the amp up slowly until you cant hear it getting any louder. Once you have done that you have reached the limit of CLEAN power that you are going to get.Thats where you want to keep it. Watch the bass boost too if you have the bass up on the deck and then crank up the bass boost on the amp it really f's up the signal too. Good luck
i highly recomend you use the hifonics colossous and wire the subs @ 2 ohms and you would be right about nominal power handling for the W7 which is rated @ 1000W, and your amp would push about 1100W to it. just be carefull when adjusting. and the best advice i can give you on the settings is as follows: Turn up the volume to the desired listening average level. (what you would normally have it on when driving) then adjust your amp by turning the different controls up, and then back down a 1/4 turn after distortion occurs. in your case with so much power dont turn them up all the way right away ease into it be gradual listen to the change in the sound.
it may be a wiring problem you need to make sure all the speaker positives and negatives are correct. I sell alot of hifonics amps and have never had 1 do that. it may also be a bad rca cable. if it only does it when you use the filter i would say not to use it also make sure the gain is no more than 3/4 turned up and the bass boost no more than 1/2. if you have a dif amp try a temp setup using it and if it still does it its a wiring issue. also try 1 speaker at a time on the hifonics and keep adding 1 till it comes back it may be a bad voice coil on 1 sub .
make sure your power and ground wires are 4 gauge thats a big power puller also make sure your wires to woofers are correct!and you want a short ground wire and a good spot for it no paint!!
if there out of phase that will shut it off BUT you might be needing a battery cap. MORE POWER!!!!they dont cost much
and save your battery and alt.hifonics is a good choice my favorite are the series 7 they dont make them like that anymore!
hope this helps one more thing your alt.how many amps is it?
my honda is only 60 amps your brutus pulls that all day !
(BATT.CAP.or HAVE ALT.WRAPED for more power.
if you have a main speaker system working properly, takea known good amp to ch2. wire the main pre amp out to amp 2 input.. turn both units on(no spkrs connected), fire it up. if the amp does not go into protect mode, turn ALL power off to the system.,connect one Spkr channel on A2, AND TURN THE VOLUME DOWN FIRS!!!!. pOWER UP THE SYSTEM AND SEE WHAT YOU GET.BE GENTLE WITH VOLUME SETTINGD! If ch 1 works, repeat procedure with ch 2 pre amp out.
You may have speakers of an incorrect impedance attached to the unit since the problem occurs when audio signal level is increased and the current goes up.The unit is shutting down to prevent damage. I would check the speaker connections and make sure that the speakers impedance are matched for the unit you are using.