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Scotty__Slides
16-04-2010, 12:17 AM
hey guys!

ive currently bought a dual 12" sub enclosure off one of my mates!
ill be running 2 Single 1600watt Kinwood Subwoofers!

BUT im not sure what size or brand amplifier i should get to run these subs????

i was thinking of getting a 5000watt Paravox amplifier, witch would run these subs comfortably! what is you opinion peoples??? any suggestions would be good :D
:hmm::hmm::hmm:

Red Valdez
16-04-2010, 07:30 AM
When referring to audio components (car or home), you should always refer to products with their RMS wattage, not their peak wattage.

I've never heard of Paravox, but I can guarantee you that it won't produce 5000w (RMS or peak). Don't buy any car audio brands that are only found on eBay and the like. All I can say is you get what you pay for.

It's a bit hard without the model number, but I'd assume that your subs are about 300w RMS, 4ohm, single voice coil. You need to check this before you buy an amp otherwise this advice could be completely wrong.

You should be looking at a monoblock amplifier to run your subs. Something that produces around 600w RMS at 2ohm. If you wanted to stick with Kenwood, they make a monoblock that puts out 500w at 2ohm (http://au.kenwood.com/Car_Entertainment/Power_Amplifiers/KAC-8105D). It is underpowering them slightly, but if they're only cheap subs, I don't think I'd be inclined to spend the extra on a more powerful amp. But then again, if you think you might be upgrading your subs down the track, a better amplifier (and one from a different brand) might be worth the extra money.

[TUFFTR]
16-04-2010, 07:35 AM
When referring to audio components (car or home), you should always refer to products with their RMS wattage, not their peak wattage.

I've never heard of Paravox, but I can guarantee you that it won't produce 5000w (RMS or peak). Don't buy any car audio brands that are only found on eBay and the like. All I can say is you get what you pay for.

It's a bit hard without the model number, but I'd assume that your subs are about 300w RMS, 4ohm, single voice coil. You need to check this before you buy an amp otherwise this advice could be completely wrong.

You should be looking at a monoblock amplifier to run your subs. Something that produces around 600w RMS at 2ohm. If you wanted to stick with Kenwood, they make a monoblock that puts out 500w at 2ohm (http://au.kenwood.com/Car_Entertainment/Power_Amplifiers/KAC-8105D). It is underpowering them slightly, but if they're only cheap subs, I don't think I'd be inclined to spend the extra on a more powerful amp. But then again, if you think you might be upgrading your subs down the track, a better amplifier (and one from a different brand) might be worth the extra money.

Correct, peak figures are just there to make the product look more powerful then it really is, I mean...300W sounds impressive but 1400W sounds even better!

Anyway, check out the Response range of amplifiers from jaycar electronics, Fantastic quality for a very reasonable price.

Woob
16-04-2010, 11:25 AM
technically peak figures are actually supposed to indicate the maximum wattage that the amp is able to produce clean power in short bursts, but these days it mostly means you can tell your mates you blew the back window out of your VN because you have 2 8000W boss amps running your rockwood comp subs and they will believe you because the amp says so on the cover :)

mattgreen
16-04-2010, 12:33 PM
technically peak figures are actually supposed to indicate the maximum wattage that the amp is able to produce clean power in short bursts, but these days it mostly means you can tell your mates you blew the back window out of your VN because you have 2 8000W boss amps running your rockwood comp subs and they will believe you because the amp says so on the cover :)

hhaah boss amps are the biggest peice of shit. i blew one after a week of NORMAL listening volume

headake
16-04-2010, 12:39 PM
i have a cadance z1400 or something like that.. i have to say i am very happy with it it powers my two sound streams that are 650rms each
would like a second one as u can bridge them and get a full 1400rms out of the amp

mattgreen
16-04-2010, 12:43 PM
i have some kicker gear sounds great. thinking bout selling it tho

Woob
16-04-2010, 02:03 PM
hhaah boss amps are the biggest peice of shit. i blew one after a week of NORMAL listening volume

thus the comment.

magnat
16-04-2010, 08:41 PM
Nah Boss Amps are cool... they have an inbuilt cooling fan and go really well with AudioVox Subwoofers.
(if you cannot detect the Sarcasm you will in a second)

Boss amps have no noise and can be powered off a 16 gauge power wire and who needs a fusible link when a Screw does the job nicely.

The OP needs to give a little more detail into what the heck he is running it in... I mean is he running it in a Hatchback, A Sedan, Wagon, 1st Gen , 2nd or 3rd Gen ? or is it being installed in a Thunderbox out the back of Broome pub...

Scotty__Slides
16-04-2010, 08:47 PM
haha yeah boss gear is reeeaaaaaalllly good qaulity stuff :-/ lol
sorry mate, im running them into my TS magna 2nd Gen!

magnat
16-04-2010, 09:19 PM
Still need to know what deck where dealing with before I can recommend an Amp set up..

How good would you rate your skills?
I would hate to see you wire up an 8 gauge toaster element..

Scotty__Slides
19-04-2010, 03:21 PM
hey mate its going into a TS magna!

i know a fair bit of car audio crap lol! just finished doin my system in my 66' stang!

im pretty sure they are 500rms subs!

speakers 6x9s = 110rms
speakers 6inch= 90rms

peaandham
19-04-2010, 03:33 PM
Mate no offence but if you knew a bit about car audio you wont want to be;
1) Running 6x9's with Subs
2) Be Referring to nothing but RMS (neglecting, Make, Model)
3) Not explaining what you want out of the system
4) not thinking of Type of music you listen to.

Paravox no thanks (i should really add them to this list under "Cheap As Chips) http://www.aussiemagna.com/forums/showthread.php?t=78565

Maybe have a look here www.ryda.com.au, where Sony is the worst brand they stock !

Joe Bellissimo
19-04-2010, 05:44 PM
I've got option audio amps on my site that will probably do the trick. A picture would be good so we could figure out the models.

peaandham
19-04-2010, 06:34 PM
I have an option audio X1502 they are Beautiful amps would work very nicely!

Scotty__Slides
19-04-2010, 08:49 PM
Mate no offence but if you knew a bit about car audio you wont want to be;
1) Running 6x9's with Subs
2) Be Referring to nothing but RMS (neglecting, Make, Model)
3) Not explaining what you want out of the system
4) not thinking of Type of music you listen to.

Paravox no thanks (i should really add them to this list under "Cheap As Chips) http://www.aussiemagna.com/forums/showthread.php?t=78565

Maybe have a look here www.ryda.com.au, where Sony is the worst brand they stock !


mate the 6x9s are running off a different amp, ive already said what brand, not sure of the model number tho :-/
i just want a clear crisp sound from both my subs and speakers :-D

and to be honest you can tell what sort of music i listen to by the setup lol

Scotty__Slides
19-04-2010, 08:51 PM
I've got option audio amps on my site that will probably do the trick. A picture would be good so we could figure out the models.


cheers mate, just after some simple advice :D thats all, will be sure to give them a look :D
any shop you recommend?

Rory_newton
19-04-2010, 08:52 PM
cheers mate, just after some simple advice :D thats all, will be sure to give them a look :D
any shop you recommend?

Check his signature thing under his post.... lol

Scotty__Slides
19-04-2010, 08:54 PM
Mate no offence but if you knew a bit about car audio you wont want to be;
1) Running 6x9's with Subs
2) Be Referring to nothing but RMS (neglecting, Make, Model)
3) Not explaining what you want out of the system
4) not thinking of Type of music you listen to.

Paravox no thanks (i should really add them to this list under "Cheap As Chips) http://www.aussiemagna.com/forums/showthread.php?t=78565

Maybe have a look here www.ryda.com.au, where Sony is the worst brand they stock !


yeah mate nar thats a fair call! its just a temporary car, thats why budget isnt to high! just something with a lil bit of kick for the time being! :D
yeah bloody oaht paravox are cheapER than chips lol, but arent too bad for a cheapy. was with my sub enclosure when i bought off a mate, so why not give it a go i thought.
but ive heard of ryda.com.au i shall give it a look!
thanks mate

peaandham
20-04-2010, 12:37 PM
i wasnt talking about running the 6x9's off the same amp, i was talking about using a set of 6x9's in the same car as subs. most people i know will get some fully sick 6x9's thinking that they are cheap and loud. The first general rule regardless of the car is to spend more money on improving the front speaker setup. Theres nothing that i hate more than hopping into peoples car and having all the music coming from behind them. If you want a little bit of kick along with running these subs with something like an Option Audio or Jaycar amp, amp the fronts (if its a four channel amp, bridge 2 channels to each of the front speakers) and if funds allow invest in some dynamat. You will be surprise what a little Midbass from the front doors will do for you. Also as for running 6x9's with subs it just not only sounds terrible but back to referring to music coming from the back its just unbalanced.

As for the car being Temporary i had some old Soundstream Coaxils that i decided to stick in the family Festiva, because i could not bear what was already in there, followed by an MDF spacer as a baffle, i no longer care if i have to drive it.

Just think about what you buy because it can always be used in what ever car you get next. . .

magnat
20-04-2010, 01:56 PM
I run 6x9's in my ride.. aswell as a 12 inch sub..
Regardless of how hard you try.. there are frequencies a 6 incher cannot play in the doors.. then that leaves a gap between what the 6 inchers play and what the 12 inch is tuned to.. So you can run 6x9's with a sub, but the system has to be dialled in properly..(I am not building an 8 inch driver door build out to fill in the gap)

Scotty__Slides
20-04-2010, 06:15 PM
i wasnt talking about running the 6x9's off the same amp, i was talking about using a set of 6x9's in the same car as subs. most people i know will get some fully sick 6x9's thinking that they are cheap and loud. The first general rule regardless of the car is to spend more money on improving the front speaker setup. Theres nothing that i hate more than hopping into peoples car and having all the music coming from behind them. If you want a little bit of kick along with running these subs with something like an Option Audio or Jaycar amp, amp the fronts (if its a four channel amp, bridge 2 channels to each of the front speakers) and if funds allow invest in some dynamat. You will be surprise what a little Midbass from the front doors will do for you. Also as for running 6x9's with subs it just not only sounds terrible but back to referring to music coming from the back its just unbalanced.

As for the car being Temporary i had some old Soundstream Coaxils that i decided to stick in the family Festiva, because i could not bear what was already in there, followed by an MDF spacer as a baffle, i no longer care if i have to drive it.

Just think about what you buy because it can always be used in what ever car you get next. . .


yeah mate nar thats a fair call, cheers for the info lad :D
but im also planning on putting 6" above the dash near the windscreen! aswell as the doors!
so do you think if i amped them both and left the 6x9s run off the headunit it would sound good? :-/

Scotty__Slides
20-04-2010, 06:17 PM
I run 6x9's in my ride.. aswell as a 12 inch sub..
Regardless of how hard you try.. there are frequencies a 6 incher cannot play in the doors.. then that leaves a gap between what the 6 inchers play and what the 12 inch is tuned to.. So you can run 6x9's with a sub, but the system has to be dialled in properly..(I am not building an 8 inch driver door build out to fill in the gap)

yeah im with you on this one mate! i mean it makes sense what he is saying with balancing the speaker set-up, but also your right that the freq's are totally different from speaker to speaker!
im thinking off still running both 6's plus the 6x9s! what do you think mate?

super_sheep
20-04-2010, 07:08 PM
yeah mate nar thats a fair call, cheers for the info lad :D
but im also planning on putting 6" above the dash near the windscreen! aswell as the doors!
so do you think if i amped them both and left the 6x9s run off the headunit it would sound good? :-/
sounds like a bit of work for a temp car...

Red Valdez
20-04-2010, 07:18 PM
yeah mate nar thats a fair call, cheers for the info lad :D
but im also planning on putting 6" above the dash near the windscreen! aswell as the doors!
so do you think if i amped them both and left the 6x9s run off the headunit it would sound good? :-/

So, judging by this post (http://www.aussiemagna.com/forums/showpost.php?p=1237727&postcount=3), you want:
6" on dash
6" in front doors with tweeters on dash
6" in rear doors with tweeters in door
6x9" on the parcel shelf
?

ONE set of good quality speakers in your front doors will sound a LOT better than four average sets of speakers scattered across the car. I cannot emphasise that enough!

Lugo
20-04-2010, 07:52 PM
1) Running 6x9's with Subs
That's absolute crap. If you know how to tune a stereo properly it won't make a difference if they're 6x9 or 6-6.5". I've setup a few systems with 6x9"s and subs (I've run a couple myself), as well as with 6's in the rear, and I'm completely certain that once tuned correctly, the difference in speaker size made no difference to the overall quality of sound. The problem comes with peoples ability to tune, they play the sub and the 6x9"s down low because they think thats best, which you and I both know isn't the case.

If they're 500w rms subs, you'll need to work out how many voice coils each sub has, and what the impedance of each coil is to get any idea of the sort of wattage you'll need from the amplifier as said, wattage alone won't give any the ability to accurately suggest best bang for your buck.

Oggy
20-04-2010, 07:56 PM
You sound keen and I don't want to shoot you down, but sometimes less is more.

From your last question, will it sound good? I think it might sound loud, but probably not good.

But screw that, just do it and see what happens! :)

hojo
20-04-2010, 08:18 PM
yeah mate nar thats a fair call, cheers for the info lad :D
but im also planning on putting 6" above the dash near the windscreen! aswell as the doors!
so do you think if i amped them both and left the 6x9s run off the headunit it would sound good? :-/

6 inch speakers will not fit in the dash. find some 4" speakers for the dash, or just get some 6" splits, fit the tweeters where the stock speakers are and fit the speakers on the doors

Mr İharisma
21-04-2010, 12:17 PM
That's absolute crap. If you know how to tune a stereo properly it won't make a difference if they're 6x9 or 6-6.5". I've setup a few systems with 6x9"s and subs (I've run a couple myself), as well as with 6's in the rear, and I'm completely certain that once tuned correctly, the difference in speaker size made no difference to the overall quality of sound. The problem comes with peoples ability to tune, they play the sub and the 6x9"s down low because they think thats best, which you and I both know isn't the case.

If they're 500w rms subs, you'll need to work out how many voice coils each sub has, and what the impedance of each coil is to get any idea of the sort of wattage you'll need from the amplifier as said, wattage alone won't give any the ability to accurately suggest best bang for your buck.

This is true.

I would never personally run 6x9's with a sub. I would personally never run speakers in the parcel shelf of a sedan with a sub either but that is just me.

If there is a gap around the 80 - 125Hz something is wrong with your fronts or the woofer or both ( tuning ). You only need to mount a decent set of splits properly to make them play with the same kick as a 6x9. Unfortunately 6inch $250 splits won't generally do this so there is a cost associated with this as well.

A good example of a set that is capable is the Hertz HSK165. If they are mounted correctly they give a lot down low. Higher still the Morel Elate 6 is another 6.5inch that likes to get down and play 70Hz well.

Scotty__Slides
21-04-2010, 04:20 PM
You sound keen and I don't want to shoot you down, but sometimes less is more.

From your last question, will it sound good? I think it might sound loud, but probably not good.

But screw that, just do it and see what happens! :)



nar mate everyone here is making a shitload of sense! i wasnt sure, so thats why i asked!
and yeah im thinking of trying all different setups, just have some fun with it, why not lol

Scotty__Slides
21-04-2010, 04:22 PM
6 inch speakers will not fit in the dash. find some 4" speakers for the dash, or just get some 6" splits, fit the tweeters where the stock speakers are and fit the speakers on the doors



yeah mate im not sure what i said before :-/
but i meant to say "shallow 4inchs in the dash, hard to find shallow 4s tho :-/
thanks for the advice mate! :D

Scotty__Slides
21-04-2010, 04:27 PM
This is true.

I would never personally run 6x9's with a sub. I would personally never run speakers in the parcel shelf of a sedan with a sub either but that is just me.

If there is a gap around the 80 - 125Hz something is wrong with your fronts or the woofer or both ( tuning ). You only need to mount a decent set of splits properly to make them play with the same kick as a 6x9. Unfortunately 6inch $250 splits won't generally do this so there is a cost associated with this as well.

A good example of a set that is capable is the Hertz HSK165. If they are mounted correctly they give a lot down low. Higher still the Morel Elate 6 is another 6.5inch that likes to get down and play 70Hz well.


yeah mate all makes sense to me, although i still dont 100% agree with the whole useless 6x9s talk! like everyone has been saying, it all comes down to how you tune it. if you had just 6's hooked up, it would be tuned way differnt to if you had 6's and 6b9s hooked up!
but i do really appreciate all this info guys :D

magnat
21-04-2010, 04:48 PM
This is true.

I would never personally run 6x9's with a sub. I would personally never run speakers in the parcel shelf of a sedan with a sub either but that is just me.

If there is a gap around the 80 - 125Hz something is wrong with your fronts or the woofer or both ( tuning ). You only need to mount a decent set of splits properly to make them play with the same kick as a 6x9. Unfortunately 6inch $250 splits won't generally do this so there is a cost associated with this as well.

A good example of a set that is capable is the Hertz HSK165. If they are mounted correctly they give a lot down low. Higher still the Morel Elate 6 is another 6.5inch that likes to get down and play 70Hz well.

Some times you have to run what you have an make the best of it...

Sometimes, yes I have to agree, less is more and you can get away with a set of 6-6.5 inch splits and a 10 inch sub.. It all depends on the tuning of the sub enclosure and what the sub is capable of playing and of course, what style of music you like to listen to...

Mr İharisma
21-04-2010, 05:53 PM
Some times you have to run what you have an make the best of it...

Sometimes, yes I have to agree, less is more and you can get away with a set of 6-6.5 inch splits and a 10 inch sub.. It all depends on the tuning of the sub enclosure and what the sub is capable of playing and of course, what style of music you like to listen to...

Fo Sho'!

The first system in my old Magna had Boston FS60, Sony 3way 6x9's and Boston 12.5lf. Worked really well until I upgraded to a Boston G5. That woofer change, increase in power and lack of filtering on the rear channels meant the 6x9's had to go. My system did sound better without them.

I by no mean "hate" 6x9's, they serve a lot of people well. I just prefer not to use them if I can.

At the end of the day, everyone has a personal preference and so long as you have correctly installed your gear and tuned it properly - hopefully you are happy with the result. For everything else there is Mastercard lol.

Oggy
22-04-2010, 12:18 PM
I think the argument _against_ speakers in the parcel shelf (6x9 or otherwise) is that the sub is basically hitting the back of those speakers and stopping them from performing as clearly as they did without a sub. Probably if the back of the parcel shelf speakers was boxed in, then they would then be immune to interference from the sub sound waves inside the boot.

I've currently got my fader set 70% to the front and bass is firm and all sounds are clear.

magnat
23-04-2010, 04:28 PM
Pressure waves from the Subwoofer can affect the Parcel shelf speakers but you would have to be pumping it pretty hard for it to occur.
Boxing the speakers in, can limit their performance aswell..

The main issue with using 6x9's and a sub is the whole cross frequency thing that can occur.
You can cancel out frequencies if the 6x9's and the Sub are wired out of phase with each other.

With your 70% fade (Which I also do) reduces the power to the rear speakers which can limit the risk of frequency doubling or cancellation..

There used to be a whole hatred against 6x9's in the " Audiophile" realm of the car audio forums.. There are a whole list of reasons why to hate them and why to like them.
For me, they were the best investment my ghetto sound system ever got and I still have a warm spot for them now..