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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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The audio install is complete! but something is amiss...
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Mon, 15 August 2005 01:16
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It's finished! the front and rear speakers sound amazing.... but my sub doesn't.
In fact, it's so quiet that I can't hear it at all. when I put my fingers against it I can feel it pulsing with the beats, but not veyr much, and the volume is negligible. I've tried swapping around the RCAs, fidding with the gain, pass filters, and bass gain on the headunit.
any special reason why it should be fuggered? (it annoys me especially, because this is the one piece that I didn't install myself, and it's the one that's fuggered)
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 01:58
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How quiet are we talking? My sub often sounds quiet to the point where I don't think it's on, but then a bassy section comes or I turn the bass up to check and boom. And that's exactly the way I like it, it doesn't impinge on the sound.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:01
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quiet to the point that when I put on bassy songs they still sound hollow, and I cant hear the sub, even with the gain turned up
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Location:
Land of Oz
Registered:
June 2004
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:04
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Hi,
You've got to play songs with bass man! None of these pissy disco songs! 
Have you checked all the +ve and -ve wires are going to the correct terminals? If these are swapped the sound will cancel out - that is, one speaker will push while the other one will pull and the sound waves cancel each other out.
Have you got some deep bass songs like Sting's "Wrapped around your finger" or Kate Bush version of "Rocket Man" where there is some very deep bass without too much other music going on so you can hear it clearly and how the sub is responding.
I'm better with home set-ups. I can't be bothered jamming myself into silly positions in getting the car stuff done, but the prinicpal is the same.
seeyuzz
river
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:12
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Okay, that's not cool...
Lets start at the start.
How is the amp connected? Is the sub being powered from a separate amp to the other speakers? If it's bridged, is it done right? (mine only works one way)
Are you sure when you "feel" the sub move it actually IS moving? I often think my sub is on when I feel it, but then I sort it out and bam I can SEE it moving.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:23
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What deck do you have?
Is the sub function turned on?
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Location:
wollongong NSW
Registered:
August 2003
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:32
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check on the HU that the equiliser settings have something with some bass in it,
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:38
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if the sub has its own amp, make sure it is grounded properly.
i did a bit of work on a system where the sub amp earth was attatched to a beefy looking bolt that was insulated from the chassis, so the amp was getting its earth from the RCAs or something.
get testlight/buzzer and check everything
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:44
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How is the H/U set up? are you running 3 sets of outputs from the H/U or are the Subs running off the Rears?
2 possibilities, 1 the signal from the H/U to the amp is low.
2 the power to the amp is bad.
Seeing that playing with the Gains doesn't have a huge effect points to the signal being low (unless you have a bad power feed to the amp? of speakers aren't connected properly) if the sub is running off the rear speackers make sure that the front rear fade isn't pushed to the front?!? make sure any bass controllers in the H/U are on, check RCA connections.
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Location:
new castle
Registered:
July 2005
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:44
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are there any other settings on your amp ie. bass boost try turning those up...how many WATTS is the sub and how many WATTS is the amp, mighten be getting the power it needs especially if its not bridged properly. is your earth on the amp connected right, that can fuck with your sub aswell.
could be a thousand things
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 02:57
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sort of fixed.. it was a combination of problems. The freq filter was set on like <50Hz, so there wasn't much it was playing. on top of that, there's a separate sub volume control which was down low, and I still don't know which of the sub wires is +ve and which is -ve (the shop that did it used that figure-8 copper core clear wire. My stuff has a big red line to distinguish them. this one doesn't)
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 03:05
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Mixing the +ve and -ve won't make a hugh different to the sound output it will just reverse the phasing of the speaker.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 03:06
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which can cause reduced life, yes?
The sound is fine either way.. I just dont want to break my spanky sub.
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Location:
Kellyville, Sydney
Registered:
June 2004
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 03:24
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i dont think it can hurt your sub.
it only matters if you have 2 subs wired opposite the sound will cancel out. if its just 1 sub u should be fine.i think
chris
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 03:29
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Having it out of phase will only have it out of phase with the rest of the speakers. A lot of people won't notice, a lot of people it'll annoy the shit out of. 
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 03:33
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If the wire doesn't have a trace down it you will probably find that the cable's insulation is one side square (+ve) and one round (-ve) or one side with writing on it (+ve)
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 04:03
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one side had the cable type on it (guage etc).
I assumed it would be negative (writing was in black). called the install shop and they wire it positive, so all fixed. my ears hurt  .. been testing out how much volume it can take before distorting. I didn't get it to distort 
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Location:
West Sydney
Registered:
July 2005
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 04:05
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What sub are you running and what amp are you running, if your amp cant power the sub sometimes you will get the effect of it being on sometimes and being off or you will get the effect of it being really quiet, and do you have all the positives and negatives right, and make sure your ground is grounded somewhere really good.
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Location:
Sydney
Registered:
January 2005
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Re: The audio install is complete! but something is amiss...
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Mon, 15 August 2005 04:38
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to test which one is +ve and -ve, disconnect from the amp, get a 9v battery and push the cables to the +ve and -ve on the batt. if the sub pushes out its right, if it doesnt than swap m round and set em up accordingly on the amp.
if they aer the wrong way round ull get the wrong bass. they have different sounds wen the sub pushes and pulls. get it the right way n it'll sound better.
-------
jason
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