Author Topic: Subs delayed ?  (Read 6748 times)

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Offline chr1S

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Subs delayed ?
« on: Aug 29, 2006, 08:18PM »
Man, it's really getting up my nerve lately...

My subwoofers seem to deliver the bass "delayed" and it makes the music sound really weird...Almost like a laggy effect. It's more noticable with dance music, with rnb, it's very hard to tell.

I've tried swapping polarity, mucking around with settings on the amp and HU but im starting to think it's my headunit, or the amp.

Ive got an older JVC HU, not sure on age but i know it's been in there for 3/4 years, my amp is a response amp.

Subs - RF P2 12" Punches - doubt it's my subs, they aint cheap shiz

any idea on what it can be ?

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Offline Jono

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Re: Subs delayed ?
« Reply #1 on: Aug 29, 2006, 10:51PM »
Is your sub box built to specs?
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Offline chr1S

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Re: Subs delayed ?
« Reply #2 on: Aug 29, 2006, 11:22PM »
yup

it would sound delayed with the old smaller box stick sent me too..

edit: what if a box is too small and too large ?
« Last Edit: Aug 29, 2006, 11:24PM by chr1S »
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Re: Subs delayed ?
« Reply #3 on: Aug 29, 2006, 11:24PM »
dose you head unit have time adjustment, mine uses a in car mic to adjust all speaker to reach the ear of the listen at the same time (you can also set where your sitting so its always the right timing)
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Offline chr1S

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Re: Subs delayed ?
« Reply #4 on: Aug 29, 2006, 11:40PM »
nah it doesn't it's basic features..

EQ = off

bass, treble, sub level, fader, balance.
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and if someone wasn't cranky at Chr1s for something he said...

Offline rathies

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Re: Subs delayed ?
« Reply #5 on: Aug 29, 2006, 11:45PM »
I had this problem with my jbl 15'. It was really hard to tune. I'd suggest the crossover is set a teensy bit too high and the speaker is trying to respond to a zillion different frequencies at once.
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Offline chr1S

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Re: Subs delayed ?
« Reply #6 on: Aug 29, 2006, 11:53PM »
hmm.. are they really that picky..they sound friggin awesome, just wish it was in phase.
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and if someone wasn't cranky at Chr1s for something he said...

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Re: Subs delayed ?
« Reply #7 on: Aug 29, 2006, 11:56PM »
Bring a bit more bass back into the speakers and less from the sub. Sub will be in phase and speakers will be slowed down.
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Offline chr1S

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Re: Subs delayed ?
« Reply #8 on: Aug 30, 2006, 12:00AM »
so run the 6x9's in full not HP ? I might as well do that with the splits too
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and if someone wasn't cranky at Chr1s for something he said...

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Re: Subs delayed ?
« Reply #9 on: Aug 30, 2006, 12:01AM »
does your deck have some sort of fine tuning? like a few different EQ bands? other than just mid, trebble and bass. If you turn the x-over off and play around with those you will be able to get it perfect. Most decks have preset levels of HPF which is a load of shit really.
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Offline chr1S

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Re: Subs delayed ?
« Reply #10 on: Aug 30, 2006, 12:04AM »
nah this deck is pretty old..

Its eq is like POP ROCK SOFT haha

I think it's time i upgrade HU.
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and if someone wasn't cranky at Chr1s for something he said...

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Re: Subs delayed ?
« Reply #11 on: Aug 30, 2006, 12:05AM »
I can't remember if the response amps have variable hpf?? If they do then play it that way.
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Offline chr1S

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Re: Subs delayed ?
« Reply #12 on: Aug 30, 2006, 12:06AM »
not on the monoblock, only variable LPF, subsonic (nfi what that is) bassbosst = off and gain
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and if someone wasn't cranky at Chr1s for something he said...

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Re: Subs delayed ?
« Reply #13 on: Aug 30, 2006, 12:07AM »
yer but what about your 4 chan? The Q dial makes the sub punch harder. There is also a thing that comes under bass boost that lets you adjust the frequency of the bass boost. Subsonic..well I never knew what that did either, It never made a difference to the sound no matter what I did.
« Last Edit: Aug 30, 2006, 12:09AM by rathies »
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Offline chr1S

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Re: Subs delayed ?
« Reply #14 on: Aug 30, 2006, 12:08AM »
yeah it has adjustable freq, not sure if it's HPF of LPF. i think it's more midrange
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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and if someone wasn't cranky at Chr1s for something he said...

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Re: Subs delayed ?
« Reply #15 on: Aug 30, 2006, 12:10AM »
lookin at the book for my 2x150 now. There should be a HPF and an LPF dial. The minimum you can set the hpf to is 50hz so thats pretty low still.
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Offline chr1S

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Re: Subs delayed ?
« Reply #16 on: Aug 30, 2006, 12:12AM »
only anoyying fkn thing is when tuning, it's turned abit then u run inside the car and listen, get out adjust more at boot, go back in etc

i wish it was inside :P
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline Charger

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Re: Subs delayed ?
« Reply #17 on: Aug 30, 2006, 10:51AM »
Subsonic Filter acts similar to the way a High Pass Filter works. In conjuction with the Low Pass Filter it creates a band pass of frequencies for the woofer to play.

Basically, tuning it is quite easy.

If your enclosure is ported you need to find the -3dB point of your enclosure (You can plot this in WinISD) and set the subsonic filter there. What this does is attentuates the frequencies that your woofer/enclosure can't play and loses control on so you don't damage anything.

 Setting it too high will cause a lack of low end extension and poor sound quality, whereas setting it too low may risk damaging the woofer if you're not careful.

Niether of my amps have a SS filter so I have to be careful with what I play, my enclosure is tuned to 26hz so it's not too bad but on the odd occaision you will hear four voice coils bottoming out, DAK DAK DAK DAK.

Enough rambling.

Before outlaying money, I would try to decrease some of your enclosure's internal volume by temporarily putting bricks or a phone book, or two inside and see how it sounds.

Offline Jono

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Re: Subs delayed ?
« Reply #18 on: Aug 30, 2006, 06:33PM »
Charger, you sound like you know what you're talking about :)

Sub sonic filter is really only an advantage with a ported box, sealed boxes act totally differently at very low frequencies.
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Offline chr1S

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Re: Subs delayed ?
« Reply #19 on: Aug 30, 2006, 07:23PM »
I must also add that my boxes are sealed.
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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline Charger

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Re: Subs delayed ?
« Reply #20 on: Aug 30, 2006, 09:10PM »
I find it's still worthwhile setting the Subsonic Filter regardless if your enclosure is sealed or not.

I've managed to bottom out many sealed enclosures by not watching what I'm doing.

Offline chr1S

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Re: Subs delayed ?
« Reply #21 on: Aug 30, 2006, 09:12PM »
What does bottoming out sound like ?

Man, i've never given my subs that much power to hear them hit the shit or anything...i aint confident enough lol
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

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Re: Subs delayed ?
« Reply #22 on: Aug 30, 2006, 10:28PM »
It sounds like a buzzing or tapping from your subs. Basically just distortion.
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Offline chr1S

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Re: Subs delayed ?
« Reply #23 on: Aug 30, 2006, 11:15PM »
Nah, never heard anything of the sort.
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline rathies

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Re: Subs delayed ?
« Reply #24 on: Aug 30, 2006, 11:43PM »
when the sub bottoms out it bascially won't go any louder. You'll be turning up the volume thinkin 'why the hell won't it go any louder??'
To those with a trained ear we'll know pretty much straight away, but thats simple person terms for ya  ;)
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Re: Subs delayed ?
« Reply #25 on: Aug 31, 2006, 12:30AM »
Get two pieces of wood and smash them together.

That's what a bottoming out voice coil sounds like. SMACK SMACK

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Re: Subs delayed ?
« Reply #26 on: Aug 31, 2006, 12:49AM »
and if theres smoke like my old kicker, then its really bad.
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Re: Subs delayed ?
« Reply #27 on: Aug 31, 2006, 12:13PM »
I found out a few months back Kicker L7s don't like being burped at 20hz when the box is tuned to 45hz. Lots of mechanical noise and a very bad smell. Still worked though.

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Re: Subs delayed ?
« Reply #28 on: Aug 31, 2006, 06:57PM »
mine was a kicker ex. glad thats gone.
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Offline chr1S

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Re: Subs delayed ?
« Reply #29 on: Sep 3, 2006, 03:52PM »
I set the amp to full and it works gooooood

im so happy now  ;D
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...