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Do I need an amp for my speakers?

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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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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.


2014 Ford Fusion SE 2.0T

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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)

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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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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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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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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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...

Boomin_tahoe said:
2 ohms rule

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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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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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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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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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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...

Boomin_tahoe said:
2 ohms rule

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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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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.


2014 Ford Fusion SE 2.0T

JBL MS-8

Zapco ST-4X SQ, ST-1000XMii

IDQ12v4 1.8cu sealed

Alpine SPX Pro ring radiators

Hertz HV165XL

Knuconceptz OFC, Custom fit Soundrive RCAs.

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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?

rcas are better but most amps do have hi level input just look at amp good before u buy..


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...

Boomin_tahoe said:
2 ohms rule

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So I should actually look for class D?

 

It doesn’t matter. Class D is more efficient and smaller. But a junk class D will be just as bad as A/B.


2014 Ford Fusion SE 2.0T

JBL MS-8

Zapco ST-4X SQ, ST-1000XMii

IDQ12v4 1.8cu sealed

Alpine SPX Pro ring radiators

Hertz HV165XL

Knuconceptz OFC, Custom fit Soundrive RCAs.

Share this post


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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.

 

i think what he is referring to is the old school class d amps that were incapable of playing higher than, what weas it... something like 200 hz?


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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i think what he is referring to is the old school class d amps that were incapable of playing higher than, what weas it... something like 200 hz?

 

That’s just a mono bass amp. If it can’t play 20k it’s not full range.


2014 Ford Fusion SE 2.0T

JBL MS-8

Zapco ST-4X SQ, ST-1000XMii

IDQ12v4 1.8cu sealed

Alpine SPX Pro ring radiators

Hertz HV165XL

Knuconceptz OFC, Custom fit Soundrive RCAs.

Share this post


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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’s just a mono bass amp. If it can’t play 20k it’s not full range.

 

correct, and when class d amps hit the scene back in the early 2000's, they werent physically capable of playing full range


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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correct, and when class d amps hit the scene back in the early 2000's, they werent physically capable of playing full range

 

Sorry I misunderstood. Yeah they couldn’t switch high enough.


2014 Ford Fusion SE 2.0T

JBL MS-8

Zapco ST-4X SQ, ST-1000XMii

IDQ12v4 1.8cu sealed

Alpine SPX Pro ring radiators

Hertz HV165XL

Knuconceptz OFC, Custom fit Soundrive RCAs.

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I'm not having any luck finding anything locally or on classifieds. You guys think that one you linked earlier would be fine?

 

https://www.amazon.com/dp/B01KKHT3KU/ref=asc_df_B01KKHT3KU1526468400000?tag=shopz0d-20&ascsubtag=shopzilla_mp_1123-20&15289058727370976951610070302008005&creative=395261&creativeASIN=B01KKHT3KU&linkCode=asn

 

That guy

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I'm not having any luck finding anything locally or on classifieds. You guys think that one you linked earlier would be fine?

 

https://www.amazon.com/dp/B01KKHT3KU/ref=asc_df_B01KKHT3KU1526468400000?tag=shopz0d-20&ascsubtag=shopzilla_mp_1123-20&15289058727370976951610070302008005&creative=395261&creativeASIN=B01KKHT3KU&linkCode=asn

 

That guy

 

That would be fine. Just don’t overdrive it. It will cook them kickers.


2014 Ford Fusion SE 2.0T

JBL MS-8

Zapco ST-4X SQ, ST-1000XMii

IDQ12v4 1.8cu sealed

Alpine SPX Pro ring radiators

Hertz HV165XL

Knuconceptz OFC, Custom fit Soundrive RCAs.

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That would be fine. Just don’t overdrive it. It will cook them kickers.

 

40w on 100w speakers -- amp wins? That'd be hard to do even if you were trying.


'04 Chrysler Town & Country (it was cheap and I have a family)

  • HU: Stock - Scosche SLC-4
  • Comps: Lanzar Opti6c w/Opti400x4d
  • Rear fill: Stock
  • Sub: Lanzar Opti1232D 3cf 29hz w/Zed Opti1000.1d

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