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Austen Menze
TryHard
WA
GT-TL

Posts: 370
Reg: 07-2009

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Wednesday, January 20, 2010 - 02:08 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

With a couple big heavy subs in the boot, does the car go noticebly slower?
Andrew Duaso
DieHard
Victoria
G6E turbo

Posts: 526
Reg: 02-2009

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Wednesday, January 20, 2010 - 04:44 pm, by:  Andrew Duaso (Andrewd) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

no, is your car slower by much with 1 passanger, same difference really, but always there
Brian Rignall
Tinkerer
NSW
V8

Posts: 19
Reg: 12-2009

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Wednesday, January 20, 2010 - 04:50 pm, by:  Brian Rignall (Cashmere) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

A few kilos won't really affect the performance.

After all do you drive with the fuel tank on less than 1/2 all the time?

78 Litres of fuel weighs around 78 Kgs.

So do you notice if the car is faster when you have a 1/4 tank?
Austen Menze
TryHard
WA
GT-TL

Posts: 373
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Wednesday, January 20, 2010 - 04:55 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

True :-)
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

Posts: 1187
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Wednesday, January 20, 2010 - 05:43 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i was thinking buying a big single sub enclosure, a JL audio, with 800 watt amp... anyone suggest a good sub?
Austen Menze
TryHard
WA
GT-TL

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Wednesday, January 20, 2010 - 06:22 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Depends on how much you want to spend I guess.

What music do you listen to? Most decent quality subs will sound pretty good for doof doof hey.

It took me ages to find the right sub because I listen to mostly metal, rock, blues, stoner guitar stuff.. most subs tend to be very overpowering and have resonant peaks at lower frequencies - mixing the soud of bass guitar and drums together making it sound muddy and plain bad.

After trying some very good subs such as Alpine type-x, Kicker solo baric, Soundstream of some description and some champion series Pioneer ones, they all exhibited this low end resonant spike which overpowered the music no matter how much I tried to EQ or LPF it out.

I settled on a set of cheaper Pioneer TS-W12PRS subs. They aren't built to handle a million watts or pump crazy loud, rather built to reproduce sound naturally and fill the music rather than over power it :-)

All comes down to what you listen to!
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

Posts: 1188
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Wednesday, January 20, 2010 - 11:45 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hardstyle
trance etc haha!

i have a champion series pioneer but yet to install it... are the champion series any good?
Austen Menze
TryHard
WA
GT-TL

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Thursday, January 21, 2010 - 12:51 am, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hardstyle is awesome :-)

and yeah champion series pump the doof, do you have a model number or a link? It may have been the same ones I had before..
Ali Saeed
Goo Roo
WA
V8 Limited

Posts: 1752
Reg: 09-2007

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Thursday, January 21, 2010 - 01:10 am, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i feel the lack off doof in my stocko system atm, so im thinking of getting two 10inch free to airs and making a custom parcel shelf. what do you reckon in terms of fitting?
Austen Menze
TryHard
WA
GT-TL

Posts: 386
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Thursday, January 21, 2010 - 01:47 am, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

That won't fit Ali, you'll have to remove some metal from the shelf if you're dead set on it.
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

Posts: 1192
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Thursday, January 21, 2010 - 05:12 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

not sure has a max output of 1200 watt or something, its wasnt really that expensive, about 350? i think i dunno, i just want a bit of bass until i can afford my hertz system :-)
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

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Thursday, January 21, 2010 - 05:14 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

also its illegal to cut metal as well isnt it?
Austen Menze
TryHard
WA
GT-TL

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Thursday, January 21, 2010 - 06:16 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yeah illegal too but I mentioned it mainly because it's a pain in the arse :-)

Ty, what amp are you going to run the sub with?

What's Hertz gear like? I know bugger all about car stereo brands haha
Ali Saeed
Goo Roo
WA
V8 Limited

Posts: 1758
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Thursday, January 21, 2010 - 09:46 pm, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

nah i need boot space, so looks like metal cutting might be on the agenda lol
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

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Thursday, January 21, 2010 - 11:01 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hertz is expensive but good. you should hear my mates 20k stereo in his accord euro.. its insane!!

as for the amp im not really sure, i picked up a crappy for like 100 bucks but has nowhere near the power to keep up with the sub...

ali.. if you get yellow stickered and they check when you go over the pits your screwed?.. but as if they will check..

i think if you take the risk, i think its gonna be one of those things that you may not be able to fix if you have to
Austen Menze
TryHard
WA
GT-TL

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Thursday, January 21, 2010 - 11:02 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Don't cut into the fuel tank!
Austen Menze
TryHard
WA
GT-TL

Posts: 392
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Thursday, January 21, 2010 - 11:09 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

20k stereo? that would want to sound good! i guess hertz is an expensive brand then?

oh dude, underpowered amps kills speakers pretty damn quickly. usually a lot quicker than over-powering the subs.
Tim Ross
Goo Roo
Qld
1J + GT3582R (6+1>8)

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Thursday, January 21, 2010 - 11:11 pm, by:  Tim Ross (Retox) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I listen to a bit of trance, house, and 70's to current rock.

I went for a smaller sub (8") with dual voice coil... very punchy and not overpowering at all.

and it fit into the parcel shelf perfectly... so win/win for me
Ali Saeed
Goo Roo
WA
V8 Limited

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Thursday, January 21, 2010 - 11:19 pm, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yeh i doubt they are gonna remove my parcel shelf IF i get yellow stickered.
Austen Menze
TryHard
WA
GT-TL

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Thursday, January 21, 2010 - 11:26 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I guess I should quickly elaborate.. when an amp gets driven near it's limit the output waveform from the amp starts to clip and instead of having smooth peaks it flattens out, which holds a constant voltage for the period of time the peak is flattened - Distortion.

This constant voltage heats the voice coil up in the speaker and because the cone isn't moving, it heats up exponentially and shortly burns out.

I've done it heaps of times (not on car stereo) and seen it happen often. A lot of the times it's from the gain settings on the amp being incorrectly set too.
Boris Siljanoski
TryHard
Western Australia
Soarer GZ20 TT

Posts: 179
Reg: 11-2007

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Friday, January 22, 2010 - 03:35 am, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Another problem, from my own experience.

If you wire the speakers out of phase, the bass will be very flat and quiet. I increased the gain so much that I damaged the voice coil.

So, Make sure that your speakers are wired in phase.
Dave Rose
Goo Roo
wa
uzz31 v8

Posts: 1124
Reg: 03-2007

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Friday, January 22, 2010 - 11:07 am, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Here another problem........you will be hard of hearing in 10years time .
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

Posts: 1199
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Friday, January 22, 2010 - 04:07 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Ali Saeed wrote on Thursday, January 21, 2010 - 11:19 pm:

yeh i doubt they are gonna remove my parcel shelf IF i get yellow stickered.




why do they need to remove the parcel shelf? open the boot and pull the clips out?
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

Posts: 1200
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Friday, January 22, 2010 - 04:12 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

so even if i have an amp connected to the sub? is it still connected to the speakers??... i know very little about car audio
Austen Menze
TryHard
WA
GT-TL

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Friday, January 22, 2010 - 06:56 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Boris Siljanoski wrote on Friday, January 22, 2010 - 03:35 am:

If you wire the speakers out of phase, the bass will be very flat and quiet. I increased the gain so much that I damaged the voice coil.




Yep because the frequencies cancel eachother out. This is how you "break-in" subs without needing to deafen yourself and look like an idiot in traffic; connect each sub to a 12volt ac stepdown transformer and face them towards eachother. After a bit of twiddling with the positioning you can get it so it is barely audible!


Ty Mackay wrote on Friday, January 22, 2010 - 04:12 pm:

so even if i have an amp connected to the sub? is it still connected to the speakers??... i know very little about car audio




No no, I used to word speaker to refer to speakers or subwoofers. It's always a good idea to have one amp running your speakers and a seperate mono amp (monoblock) to run your subs.
Ty Mackay
Goo Roo
WA
Soarer TT 1jz-gte

Posts: 1203
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Tuesday, January 26, 2010 - 12:24 pm, by:  Ty Mackay (Duo89) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

ah ok i see... i think, ICe is far from my area of knowledge..
Austen Menze
TryHard
WA
GT-TL

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Tuesday, January 26, 2010 - 12:33 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Same I don't know a whole lot about car audio, but I used to build hifi and guitar amps :-)
Rob Rojo
Goo Roo
NSW
TT

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Tuesday, February 09, 2010 - 10:49 pm, by:  Rob Rojo (Rob_tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I have a 10" 400W pioneer sub in the parcel tray with an alpine mono 500w amp running it and it provides plenty of bass and the bonus is I still have an empty boot.

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