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Reload Thread: Do I need an amp for my speakers?

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    2xarchonxx's Avatar
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    Do I need an amp for my speakers?

    Hey guys, new to the forum, been reading a lot of stuff here and finally have a question of my own about whether I should get an amp for my 4 speakers.

    About my setup: So I'm converting a minibus into a road trip camping machine and put in a JVC head unit @ 4x50W RMS that I'm running 4 Kicker 43CSC654 (100W RMS 300W peak, 4ohm) speakers off of. I have 2 10" Kicker L7 solobaric subs running off a JL Audio 1400W RMS Amp (They sound great and fill the bus chassis perfectly)

    My Question: The head unit puts out 50W RMS to each speaker but the speakers are rated for 100W RMS. They sound good, but my question is would they sound a lot better with an amp? Enough to justify spending another $150-200? Only reason I'm debating it is because I've already got $500 into the whole setup and am trying to budget decently to have funds for the rest of the conversion. But if they will perform significantly better with an amp then I'll spend the money lol







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    Re: Do I need an amp for my speakers?

    A few things.
    The HU is not 50 watts. That’s max. Real power is closer to 10 per channel.
    The JL amp is 1x 400 not 1400.
    If you would have came here first you could have done better.

    But the answer is always yes to the amp needed question.



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    Re: Do I need an amp for my speakers?

    couldnt agree more. hindsight is 20/20, believe me, i have a pair of rockford P3's and would have sundowns if i had come here first. and definitely amp them dudes



    2002 Honda Accord sedan V6 (automatic slushbox)
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    Re: Do I need an amp for my speakers?

    Ah yeah you're probably right about the head unit. Here is the one I have: KD-RD87BT?In-Dash Receivers?JVC USA - Products -

    If it is only like 10W RMS each channel then I'll definitely need an amp. I'm actually surprised they sound as good as they do if that head unit is only 10W RMS.

    Just looked up my JL amp and it's 500Wx1 RMS 1400W Peak, all the labels are way too misleading on audio equipment. I got the amp, 2 subs, and enclosure for $180 on facebook marketplace. I don't wanna drive them any harder though, it will rattle my bus apart if they go any harder. I have them turned down to like half as it is.

    Well dang, I thought I was getting a hell of a deal. I looked up the prices of the subs and amp and they were like $700.

    What amp would you recommend for those 4 speakers?




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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by 2xarchonxx View Post
    Ah yeah you're probably right about the head unit. Here is the one I have: KD-RD87BT?In-Dash Receivers?JVC USA - Products -

    If it is only like 10W RMS each channel then I'll definitely need an amp. I'm actually surprised they sound as good as they do if that head unit is only 10W RMS.

    Just looked up my JL amp and it's 500Wx1 RMS 1400W Peak, all the labels are way too misleading on audio equipment. I got the amp, 2 subs, and enclosure for $180 on facebook marketplace. I don't wanna drive them any harder though, it will rattle my bus apart if they go any harder. I have them turned down to like half as it is.

    Well dang, I thought I was getting a hell of a deal. I looked up the prices of the subs and amp and they were like $700.

    What amp would you recommend for those 4 speakers?
    deal-wise, i dont think you did anywhere near bad on that as long as theyre not beat to hell.

    always look for RMS on stuff, the peak number is a lie, always a lie.

    amp selection depends on your budget. This guy is awesome for its price, but there are lesser costly amps we can suggest too



    2002 Honda Accord sedan V6 (automatic slushbox)
    2 Rockford p3 12s (dual 2 ohm)
    Pioneer AVH-2300NEX
    2 PPI PC275's running 1 sub each atm, waiting to put the SQ 2200.1 back in and add the PhoenixGold Elite.4 once my electrical is up to snuff
    Front stage:PRV Audio 6MB200 6.5 and Massive Audio CT2 tweeters
    Rear speakers: stock
    I just added 5 SoundQubed stickers, and despite having no equipment upgrades, it added 76 DB!!!

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    youdoofus's Avatar
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    Re: Do I need an amp for my speakers?




    2002 Honda Accord sedan V6 (automatic slushbox)
    2 Rockford p3 12s (dual 2 ohm)
    Pioneer AVH-2300NEX
    2 PPI PC275's running 1 sub each atm, waiting to put the SQ 2200.1 back in and add the PhoenixGold Elite.4 once my electrical is up to snuff
    Front stage:PRV Audio 6MB200 6.5 and Massive Audio CT2 tweeters
    Rear speakers: stock
    I just added 5 SoundQubed stickers, and despite having no equipment upgrades, it added 76 DB!!!

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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by 2xarchonxx View Post
    Ah yeah you're probably right about the head unit. Here is the one I have: KD-RD87BT?In-Dash Receivers?JVC USA - Products -

    If it is only like 10W RMS each channel then I'll definitely need an amp. I'm actually surprised they sound as good as they do if that head unit is only 10W RMS.

    Just looked up my JL amp and it's 500Wx1 RMS 1400W Peak, all the labels are way too misleading on audio equipment. I got the amp, 2 subs, and enclosure for $180 on facebook marketplace. I don't wanna drive them any harder though, it will rattle my bus apart if they go any harder. I have them turned down to like half as it is.

    Well dang, I thought I was getting a hell of a deal. I looked up the prices of the subs and amp and they were like $700.

    What amp would you recommend for those 4 speakers?
    yeah if u paid a good low used price u ok.. we just don't like new jl prices



    KENWOOD X301 HU, PRECISION POWER Phantom 1000, FU 750 12, 2.1cfad ported, soundqubed 6.5" coax/doors, hp & lp xover on hu, AGM starting batt...
    Quote Originally Posted by Boomin_tahoe View Post
    2 ohms rule

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    Re: Do I need an amp for my speakers?

    Yeah the subs are in pretty decent shape, a little dirty from working on the bus grinding metal and what not. One of them is just slightly stiff like when you push it in and out but that's it.

    I'd like to stick to ~$100-150 range if I can. We have a ton of audio equipment on facebook marketplace here in louisville, I'll look real quick to see if either of those fellas are on there or something similar. Basically need class A/B @ 4x50W-100W RMS right? If I find a good deal is it okay if I post it here?




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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by BOOMINGRANDPA View Post
    yeah if u paid a good low used price u ok.. we just don't like new jl prices
    Yeah I buy as much used as I can, the new prices are just ridiculous.




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    Re: Do I need an amp for my speakers?

    Can I run 4 speakers off of a 2 channel amp? Or does it absolutely have to be 4 channel?

    I guess wiring them in parallel would pull too much current, and series would pull too little?




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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by 2xarchonxx View Post
    Can I run 4 speakers off of a 2 channel amp? Or does it absolutely have to be 4 channel?

    I guess wiring them in parallel would pull too much current, and series would pull too little?
    you can run 4 off a 2 channel as long as the amp is 2 ohm stable, which most are. youll just not be able to fade. the amp will get hot at 2 ohm if youre giving it a workout



    2002 Honda Accord sedan V6 (automatic slushbox)
    2 Rockford p3 12s (dual 2 ohm)
    Pioneer AVH-2300NEX
    2 PPI PC275's running 1 sub each atm, waiting to put the SQ 2200.1 back in and add the PhoenixGold Elite.4 once my electrical is up to snuff
    Front stage:PRV Audio 6MB200 6.5 and Massive Audio CT2 tweeters
    Rear speakers: stock
    I just added 5 SoundQubed stickers, and despite having no equipment upgrades, it added 76 DB!!!

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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by 2xarchonxx View Post
    I'd like to stick to ~$100-150 range if I can. We have a ton of audio equipment on facebook marketplace here in louisville, I'll look real quick to see if either of those fellas are on there or something similar. Basically need class A/B @ 4x50W-100W RMS right? If I find a good deal is it okay if I post it here?
    you can do well for yourself in that price range in the used market too. also check the classifieds on here. many trustworthy sellers with pretty decent stuff. class a/b will do, but a full range class d will be much more efficient which gets you more watts per volt/ampere drawn from your vehicles electrical system



    2002 Honda Accord sedan V6 (automatic slushbox)
    2 Rockford p3 12s (dual 2 ohm)
    Pioneer AVH-2300NEX
    2 PPI PC275's running 1 sub each atm, waiting to put the SQ 2200.1 back in and add the PhoenixGold Elite.4 once my electrical is up to snuff
    Front stage:PRV Audio 6MB200 6.5 and Massive Audio CT2 tweeters
    Rear speakers: stock
    I just added 5 SoundQubed stickers, and despite having no equipment upgrades, it added 76 DB!!!

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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by 2xarchonxx View Post
    Can I run 4 speakers off of a 2 channel amp? Or does it absolutely have to be 4 channel?

    I guess wiring them in parallel would pull too much current, and series would pull too little?
    i've done it but like udo said if u drive long time or park and play a/b will get hot after a while at 2 ohm.. since u like used man pioneer kenwood etc 4 chans always on fb offer up and cl for like $30-$80.. soundqubed has 4 chan for $149 but the pioneers are real strong sometimes u can find the 8604 ( i think it is) for like $91 on sale ebay 15% off or walmart sale



    KENWOOD X301 HU, PRECISION POWER Phantom 1000, FU 750 12, 2.1cfad ported, soundqubed 6.5" coax/doors, hp & lp xover on hu, AGM starting batt...
    Quote Originally Posted by Boomin_tahoe View Post
    2 ohms rule

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    Re: Do I need an amp for my speakers?

    Right on, ill check the classifieds here, I didn't even think about that. Class D amps are good to use on speakers? I heard that they distort on higher frequencies and should only be used on subs.

    Also, I might need to use the speaker level inputs from the HU because getting more RCA cables through the dash of that bus might not be possible. Do all amps allow speaker level inputs, or just some? It's the high level input connector on the amp right?




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    Re: Do I need an amp for my speakers?

    Quote Originally Posted by 2xarchonxx View Post
    Right on, ill check the classifieds here, I didn't even think about that. Class D amps are good to use on speakers? I heard that they distort on higher frequencies and should only be used on subs.

    Also, I might need to use the speaker level inputs from the HU because getting more RCA cables through the dash of that bus might not be possible. Do all amps allow speaker level inputs, or just some? It's the high level input connector on the amp right?
    That is BS.



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