View Full Version : Another noob question
Chapsta
15-10-2006, 10:01 PM
I have a TJ with 45x4 pioneer deck just put $90 pioneer 3way 6x9 in rear. Problem is with volume at med, bass sounds nice, turn it up a bit and it sounds like crap. Is this cause theres not enough power from deck, sounds wave boucing from boot? i have no idea:confused: . I was told by guys a stratfields that deck should be enough to run these 6x9 nicley. i have almost nil budget, can someone pls give me some suggestions on what it might be?
Cheers
most decks should usually be enough to get a pair of 6x9's sounding decent loud, and bassy.. what does it sound like, any idea?
if its distortion, then its the deck
if it sounds muddy and crap, then the speakers and/or deck sucks
if it sounds like its trying to open a tin can, then it isnt fitted properly
cant really tell for sure without hearing it unfortunately, if you just go back and get the strathies guys to have a listen, they'd usually be able to tell you whats wrong
M4DDOG
16-10-2006, 05:03 AM
Hmmm hard to say, but i'd take a guess and say your head unit isn't powerful enough. I'm guessing for $90 they were the 30/40w rms speakers? The head unit will only put out about half of that. To get their full potential you'll need an amplifier.
Chapsta
16-10-2006, 07:29 AM
Thanks for your help guys.
I'm not really sure how to describe the sound it kind of goes from a nice base to almost like a weird popping noise instad of a thump.
I'll take it back to strats.
cheers
BR377
16-10-2006, 07:55 AM
Get an amp and run it through HPF (high pass filter) and 6x9's should blast some nice sweet loud treble, but this removes all base so a sub is a good idea aswell :)
Phoenix
16-10-2006, 12:36 PM
try adjusting the settings on your HU to less bass...
el3ment
16-10-2006, 03:42 PM
definately headunit.
hardly definently HU.. for all we know, the popping noise could mean a flaw in a voice coil causing it to bottom out more quickly than it should, however unlikely, you shouldnt give someone misleading information, if they took your advice, spent money fixing it, and it turned out to be something else, i'd say they would be pretty disappointed.
mercho
16-10-2006, 04:51 PM
Are these your speakers here:http://www.strathfield.com.au/ViewProduct.asp?ProdID=1420
If so they are only 40W speakers and i wouldnt really expect them to be too loud or bassy...
Righty
16-10-2006, 05:52 PM
Dude, you get what you pay for, what do you expect for 90 bucks? Sounds like the speakers are clipping, given that they're only 40w sounds like too much power is being feed into them.
Chapsta
16-10-2006, 10:11 PM
Are these your speakers here:http://www.strathfield.com.au/ViewProduct.asp?ProdID=1420
If so they are only 40W speakers and i wouldnt really expect them to be too loud or bassy...
Yep there the ones
I guess that is the problem. So if its the speakers would a cheap amp make it any better? i'm guessing not.
Chapsta
16-10-2006, 10:16 PM
Dude, you get what you pay for, what do you expect for 90 bucks? Sounds like the speakers are clipping, given that they're only 40w sounds like too much power is being feed into them.
I was trying to find the words to describe what was going on, i guess clipping is the one. The question i have know then is it better to save for better speakers or a cheap amp? i don't want anything you can hear coming down the street, i just enjoy music and want to be able to hear all of the range without being becming deaf.
Righty
16-10-2006, 10:21 PM
I was trying to find the words to describe what was going on, i guess clipping is the one. The question i have know then is it better to save for better speakers or a cheap amp? i don't want anything you can hear coming down the street, i just enjoy music and want to be able to hear all of the range without being becming deaf.
Then ditch the 6x9's, they're not needed unless u just wanna pump your music loud. Look into a new HU, cheap amp and decent front splits, maybee add in a cheap sub if you can spare some space in your boot. without a new HU and amp you're really not going to notice huge differences in the price range of speakers you're looking at. The jaycar stuff is ment to be pretty good bang for ya buck.
Gerard
16-10-2006, 10:22 PM
ey chapsta mate. jus havin a look at ur pics.. nice lookin car (rear end is all i can see :P )
did u put the vrx kit on after u bought the car?
what else have ya done?
megatron
17-10-2006, 06:44 AM
why is everyone saying HU
he has a pioneer HU even the bottom of the range pioneer is good enough to listen to clean/clear music
i would just fade the 6x9 down, then get a pair of decent splits spends as much as you can afford, get a amp to run the slipts and 6x9 if you need more volume
Mr İharisma
18-10-2006, 07:49 PM
Yeah but I think he wants bass to come out of them... that would require more than 20WRMS per channel going into 2 speakers.
It's simple power = bass. Doesn't matter if you run a 8inch or a 18inch sub, if you want to get it really moving, add power. If you want better mid bass, HP them and deaden your parcel shelf.
Chapsta
18-10-2006, 08:45 PM
ey chapsta mate. jus havin a look at ur pics.. nice lookin car (rear end is all i can see :P )
did u put the vrx kit on after u bought the car?
what else have ya done?
Thanx man,
I actually bought it like that, got it 6 months ago for $11,5 with 70,000. The only thing I've done is a K&N filter. Oh and my wife scraped the side skirt within the first two weeks:cry: Hence the rear end shot.
Chapsta
18-10-2006, 08:51 PM
Yeah but I think he wants bass to come out of them... that would require more than 20WRMS per channel going into 2 speakers.
It's simple power = bass. Doesn't matter if you run a 8inch or a 18inch sub, if you want to get it really moving, add power. If you want better mid bass, HP them and deaden your parcel shelf.
I do love the bass Bro.
So if the 6x9 are 40WRMS and my deck is supposedly 45x4 would a small amp make a difference, to me the maths says no, The guy previously had a 15inch in the boot, I've got a pram so there went that, so all the wiring is there. I would like to put an amp in but obviously only if it makes a decent difference. And how much of a difference does sound deadening the shelf do?
Mr İharisma
19-10-2006, 04:42 AM
How a woofer makes bass is by separating the rear waves from the front waves. This is usually done ( with subs ) by putting the sub in a box. Then it is mounted in either an acoustic or reflex configuration. With the 6x9's they are mounted free air in the shelf with the shelf acting as a baffle. To help improve the shelf separate the waves, you should try and seal it as best as possible.
Best and easiest way to have a decent system is:
*Splits up front
*Rear fill ( in your case the 6x9's )
*4ch amp
*Sub
What you would do is wire the splits off channel 1 & 2 and bridge 3 & 4 for the sub. Run the rear fill off your deck. Now 10inch subs in sealed boxes can require a tiny 0.5cuft. My 12inch sub is suited to a 0.95cuft sealed box. I'm sure you can find room.
M4DDOG
19-10-2006, 04:51 AM
I do love the bass Bro.
So if the 6x9 are 40WRMS and my deck is supposedly 45x4 would a small amp make a difference, to me the maths says no, The guy previously had a 15inch in the boot, I've got a pram so there went that, so all the wiring is there. I would like to put an amp in but obviously only if it makes a decent difference. And how much of a difference does sound deadening the shelf do?
The deck is measured in watts max, not rms. The deck would put out maybe 20x4 wrms AT MOST. A cheap amp will do wonders.
magnat
19-10-2006, 06:42 PM
Guys Your Overlooking Just a Few things Here.
Q1. Are the 6x9's making a Huge Clapping Sound..
Answer: Speakers are Bottoming Out. Too much Bass From the Deck.. Cut it Back 1 notch.
Q2. Strathfield Installation: are the 6x9's properly mounted and is the Cone Sealed off from the Boot:
Answer:If not, then the Rear wave is hitting the rear of the Cone and Causing Over Excursion making them sound Crap..
The Stock location of the 6x9 on the Magna is far from Ideal.. they are mounted way down the Back and the Tweeter aimed at the roof.. This can Mask Distortion.. so it is possible they are getting too much Juice with a Clipped signal.
A Small 50w RMS x4 Amplifier would Benefit the System, Not so much as to Increase the Volume Output but the vocal and Sonic range of the speakers..
I would Check and see that none of the Tinsel Leads from the Speaker or from the Radio are touching the Shelf underneath the parcel tray.. They could be vibrating up agaisnt the shelf causing a small Short..
It could be if the Stock Grills are being used that they may be hitting the grills..
Chapsta
19-10-2006, 09:03 PM
Guys Your Overlooking Just a Few things Here.
Q1. Are the 6x9's making a Huge Clapping Sound..
Answer: Speakers are Bottoming Out. Too much Bass From the Deck.. Cut it Back 1 notch.
Q2. Strathfield Installation: are the 6x9's properly mounted and is the Cone Sealed off from the Boot:
Answer:If not, then the Rear wave is hitting the rear of the Cone and Causing Over Excursion making them sound Crap..
The Stock location of the 6x9 on the Magna is far from Ideal.. they are mounted way down the Back and the Tweeter aimed at the roof.. This can Mask Distortion.. so it is possible they are getting too much Juice with a Clipped signal.
A Small 50w RMS x4 Amplifier would Benefit the System, Not so much as to Increase the Volume Output but the vocal and Sonic range of the speakers..
I would Check and see that none of the Tinsel Leads from the Speaker or from the Radio are touching the Shelf underneath the parcel tray.. They could be vibrating up agaisnt the shelf causing a small Short..
It could be if the Stock Grills are being used that they may be hitting the grills..
Regarding q2,
I installed the 6x9, they are in nice and tight, no movement. what i haven't done is touch the parcel tray, I have noticed that there are a lot of holes. My original thought on the problem was that whateva the technical term is the sound waves from the front and rear of the speaker were clashing, making it sound crap when turned up.
From the infomation given to me so far i think it's either one of three
1 front and rear sound waves clashing.
as bass is sweet (enough for me) at lower volume, high volume turns too crap
2 speakers need more power or
3 speakers are gettin too much power, there just crap.
Solutions
1 fix parcel tray
2 small amp
3 cut my losses save for sub and amp.
As somone who doesn't know much about this stuff does this summary sound bout right?
[TUFFTR]
19-10-2006, 09:05 PM
Yep....The jaycar 4x50WRMS amp would be a great start.
And if you then get really excited, Maybe get a Equaliser down the track, lets you tune things a bit better.
standing waves wouldnt occur on a 6x9 running IB into the boot. this is not the problem.
as for the location, the stock position is about as good as any other. you cant really stage rears all that much.. and the reflection off the rear window is ideal.
the best way i can think to test is to take the speakers out of the car, run them off a different source of power.. a home amp that runs 4ohm is ideal, anything 25W RMS or more will really do. run the freeair, or in 6x9 boxes if you can get some to borrow.. boxes would be better but freeair is fine too.
the point of this exercise is to see wether act differently to how they do in the car. this will determine wether they are bottoming out early due to damage, wether you were clipping their signal, wether the tinsels are slapping the cone, or whatever else it might be.
another question that should have been asked previously but i speced, as i do a lot lately.. on your deck, what volume does it start sounding bad at, and what is the max volume of that unit? this'll really be able to determine the clipping bit.
valaxy66
19-10-2006, 10:18 PM
don't go to strathfield, not even jb hi fi, your better of going to a car audio speclialist, i have first hand experince from both and the car audio specialist did such a good job compared to those flipping paces :doubt: so in furture try not to go to this boofheads, unless you've had good dealings with them
Chapsta
22-10-2006, 08:07 PM
standing waves wouldnt occur on a 6x9 running IB into the boot. this is not the problem.
as for the location, the stock position is about as good as any other. you cant really stage rears all that much.. and the reflection off the rear window is ideal.
the best way i can think to test is to take the speakers out of the car, run them off a different source of power.. a home amp that runs 4ohm is ideal, anything 25W RMS or more will really do. run the freeair, or in 6x9 boxes if you can get some to borrow.. boxes would be better but freeair is fine too.
the point of this exercise is to see wether act differently to how they do in the car. this will determine wether they are bottoming out early due to damage, wether you were clipping their signal, wether the tinsels are slapping the cone, or whatever else it might be.
another question that should have been asked previously but i speced, as i do a lot lately.. on your deck, what volume does it start sounding bad at, and what is the max volume of that unit? this'll really be able to determine the clipping bit.
Cheers for your advice so far,
Been working too much latley, ill get back to you on the voume tomorrow
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