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Power for 2 hx2's ?? *look*!!

Discussion in 'Explorer Audio & Navigation' started by Mike, October 5, 2002.

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    1. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      Well as of right not i have 2 rockford he's in my truck.. they pound... but i have a few problems... with the he's i had the gane up maybe 1/4 the way if that.. and if i have a song that really has hard bass the bass cuts out... now im thinking its the amp.. but im not shure.. im running a single pioneer 760w amp thats bridged into both subs... could this be it? if it the amp cutting out for what ever the cause is? now here is my idea.. im going tomorrow to return the 2 he's (or trying to) cause i have 2 hx 2's i cant sell.. now i know the hx2's are really badass subs... so here is my idea...


      2 hx2 subs running off of 2 pioneer 760w amps.. and a 2f cap... how does that sound? i need the cap due to my lights dimming big time.. will this work? will i need to do anything else? i also have 4ga wire running from the batt to the dis block for the amp... will 4ga wire be enough for the 2 amps? and will i be able to run 2 760 watt amps off one cap? or should i get 2 1f caps? let me know as far as ideas....


      Mike

      please respond asap as im doing this tomorrow..

      :p
       
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    3. Mike

      Mike Moderator Emeritus Moderator Emeritus

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    4. rydinhigh

      rydinhigh Guest

      take it for what its worth but here is what i would do. run your 4ga from the front battery. From just looking at the specs for the amp real quick you should be fine with just a capacitor.

      Now here is the fun part. From the cap run the + wire into your distribution block (fused I hope) then what I would do is from the two out puts of the distribution block run one + wire to each amp. then run your speaker wire from amp A to Sub A. Then run speaker wire from amp B to sub B. Basically what you are doing is hooking up one amp per sub. looking at the specs for the HX2's you shouldn't have a problem doing this. As for the RCA wires you could either run 2 seperate sets or run one set and add on connectors that go from 1-2. basically you get two, 1 female to 2 male connectors from radio shack. plug in one of the connectors to one side of the rca wire from the back of your HU. then do the same with the other side.
       
    5. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      how do you think this should sound? should it pound? i want people 3 blocks away to hear me.. and feel it.. you know.. one of those systems you drive by somones house and you set there car alarm off and there house shakes? thats what im looking for here.. also would i be better off getting the second amp? or would it sound better and louder if i got one large amp and pushed them both with that?
       
    6. rydinhigh

      rydinhigh Guest

      well im looking at the specs for the 12"s (im assuming thats what you have) they can handle 400w rms each. You could run the 2 pionneer amps and end up with 380w rms to each sub. I would honestly by an amp that does about 800w rms. It would be easier to hook up one amp instead of 2 also. I dont see why they wouldnt sound good. It probably wont give you the earth shattering base your looking for but it should bump pretty hard. Just remember that with car audio you get what you pay for. I have a little over 2 grand in my stereo and yea it bumps.
       
    7. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      also should i go with a 1f cap or a 2f? i dont want to drain my electric system... i have a few things i need the power for... after market fogs and exct.. what one should i get?
       
    8. rydinhigh

      rydinhigh Guest

      I would go with the 2f depending on price. you could be like me and get a 2nd battery for you system. one thing you should do is get a bigger alt. Im not sure of the size of the one in your truck but in mine its 95A stock. I got a 130A from autozone for about $120
       
    9. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      i think stock i have a 100 amp
       
    10. rydinhigh

      rydinhigh Guest

      upgrade it its deff. worth it. With a bigger alt. and a 2f cap I will just about guarantee you that you wont have any problems.
       
    11. davesexplorer

      davesexplorer Well-Known Member

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      How are you wiring up the subs to the amps?

      2-HE 4ohm to a single load = 2 ohm, and if im not mistaken this is below the pioneers bridged impedance recommendations. This will send the amp into protection mode.

      2-Hx2 Dual 4 ohm = either 2 ohm or 8ohm (per sub), either of which is not optimal for the amps.

      2-Hx2 dual 2 ohm = either 1 ohm (bad idea) or 4 ohm, viola this will work
       
    12. MrExplorer

      MrExplorer Active Member

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      i want people 3 blocks away to hear me.. and feel it.. you know.. one of those systems you drive by somones house and you set there car alarm off and there house shakes?


      Thats supposed to be impressive? Sounds more like disrespectfull. Im more impressed with a system thats well balanced, not 99% bass .
       
    13. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      that was just a figure of speach.... my truck is verry well ballanced... i have great highs and mids.... so much that it covers the bass on most songs.... thats why im looking for moe bass..


      Mike
       
    14. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      welp i returned the poineer amp and got a rockford amp... s400. it sounds ok... i still have to play with it.. i also got a cap.. but i dont know what size it is all i see on it is 500,000 whats that mean? also how do i charge this? and should this fix my prob with the lights dimmimg when it hits?
       
    15. MrExplorer

      MrExplorer Active Member

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      Thats a 1\2 Farad cap. My Rockford 360 wasnt happy until i got a 1 farad cap. That solved the dimming problem also. Normally the intial charge is done with a resistor in line (should have been included). This is done before the final hookup of the positive lead to the battery and amp. Basically just have your negative hooked up allready and then take the resistor ans place it between your battery lead(+) and the cap(+). The resistor may get hot so beware. I know that some people just hook them up and deal with it arcing when you place the last lead on.
       
    16. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      Welp i still have not charged the cap.. hope to do that tomorrow... but i love the subs..
       
    17. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      question for you guys.... if i add a cap to my system do i need to put in a cut off switch? wont the cap drain my batt? i want to fin dout before i hook it up cause i dont want to try to start it one day and have a dead truck.. ya know?

      Mike
       
    18. Rscotts1

      Rscotts1 Elite Explorer

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      No, you do not need a cut-off switch.
       
    19. MrExplorer

      MrExplorer Active Member

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      The cap wont drain your battery once its charge has been replenished. The cap just stores energy. I belive the caps with digital readouts have a third terminal for a positive signal (At least mine does) to turn the readout on. That should be wired to the ignition.
       
    20. Mike

      Mike Moderator Emeritus Moderator Emeritus

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      anyone else have anyinfo ont he caps? one of my friends says it will kill my bat? also will a 1/2 F cap be good for an s400 rockford amp?
       
    21. MO_GUY

      MO_GUY Elite Explorer

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      how about this?

      i have a single 12" power hx2, i used a JBL BP1200 for it.....i would say buy two of these amps, they are quite reliable and CHEAP power....and you'll also need a set of the Harrison Labs F-Mods for the subsonic filter, or you can buy 2 sets and plug in to each other(i.e. High pass 30Hz, low pass 80Hz) that way you'll never have any sound below 30Hz leak out your sub and nothing "non bass" over 80Hz leak out either.....the things cost like 30 bucks a pair.....i just went and go the subsonic filters because i port my boxes and tune them to what frequency i feel is best for the speaker
       
    22. Explorer94GV

      Explorer94GV Active Member

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      I have the rf digi cap and i have it hooked up to a turn on switch. I havent had it drain my battery yet. I dont think it will solve your problems though. If i were you send it back. I have a 200amp alt., 1.0 digi RF cap., 0 gauge wire, Stinger SP1000 Batt. 1200cca, RF 1500.1 amp, and 18 Stroker and i still get dimming pretty bad. This set-up can be heard 3 blocks away and shakes a house like your asking for. Only way you will stop dimming is dual altenators or more batteries. For the price you pay on the cap. ($110) i paid you can get a second battery. What i have seen is once you break the 1000 watt mark dimming/electrical is a problem and needs to be upgraded. You dont need to 2 caps. for sure all it will do is drain your altenator even more.
       
    23. SaleenEXP

      SaleenEXP Well-Known Member

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      I had the same problem with my amp cutting the bass out. I have an MTX 2300x bridge to three MTX 6000 10's, and when the gain was up it would cut off my bass.
      I took the amp back to Sound Advice and they mailed it off under warrenty. I don't remember the problem exactly, but they had to do something inside the amp board as something had come loose. My friend had a Rockford amp with the same problem and when it was sent off they did the same thing, something about soldering a piece on the board.

      A cap will help also, but not if something internally is wrong. Did you check the amp or have it checked yet??
       

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