#1662642 - 06/11/09 06:39 PM
looking for some good help
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jerry_m
SD Ralph Wiggum
Registered: 09/05/08
Posts: 27
Loc: northern nj
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i have 12w6 sealed c5 6.5 comps 500-1 a 300-2 and a pioneer 800prs deck sealed doors sealed trunk so far in a jetta. i plan to compete with this. i set the deck with mike.does not sound to good.not sure where i should be setting amp filters.i know i will learn more on what i should be hearing at contest.staging,depth,etc but i need some ref now. anyone who knows this deck and filters on jl amps who could help me get started. please help old guy out. thankyou.
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#1662780 - 06/12/09 02:55 AM
Re: looking for some good help
[Re: jerry_m]
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keep_hope_alive
in another life, i'm a serial killer
SD I Power Bombed the Undertaker
Registered: 04/24/07
Posts: 13370
Loc: Quad Cities, IL
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start by telling us what all the settings are at currently please.
any auto-eq function is very dependent on the microphone location and it's polar response. sometimes just changing the orientation of the mic can make improvements.
however, i am never happy with an auto-eq.
also, review the SQ judging criteria for MECA, IASCA, and USACi - their official rule books are available on their website for free. In there you will have very detailed explanations on what each category is looking for. use that as a basis for your evaluation. it is impossible to tune a vehicle without sitting in it. however, if you can accurately describe what you hear and what your settings are at, then we can make educated guesses to maybe get you closer.
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#1662932 - 06/12/09 08:00 AM
Re: looking for some good help
[Re: keep_hope_alive]
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TtownCLS
**********
Team SoundDomain
Registered: 02/11/08
Posts: 1503
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I have to assume several things. You are talking about competing in sound quality competition? You have the components up front using the passive crossovers? The 300-2 is powering the front, and the 500-1 is powering the sub? If all those are yes, I would turn off the filters on the amps if possible. Use the head unit for crossover. You would set the front high pass to the lowest frequency the components are capable of reproducing accurately. Set the sub low pass at the same frequency for now. You may want to play with that some to get the best results. Every car is different. Set the time alignment for each channel using measurements from the listening position to the speaker. If you are running the front components using the passive crossovers, you won't be able to correct for differences between the mid, and tweeter. To run full active, you would need two more channels of amplifier. That is the VERY basic settings. At some point, you will want to run a rta curve on the system to find problems and possibly adjust the crossover points to better suit the response of the speakers. I would recommend taking it to a show. Don't worry about winning yet, just learn. You will find people who are willing to help you. I would bet you can find someone with an RTA to help out. I could tell you a crossover point to use, but it may not work in your car. It's really something you have to measure and listen to for the best results, and I'm certain you can get that help from the people you will meet at shows.
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#1663428 - 06/12/09 07:50 PM
Re: looking for some good help
[Re: TtownCLS]
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jerry_m
SD Ralph Wiggum
Registered: 09/05/08
Posts: 27
Loc: northern nj
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first thankyou for replying.the 500 settings infrasonic filter 30hz. Q 1.1 center freq 55. amp lp filter 12db.filter freq 80. adjustable bass boost upfront. bass sound real good very tight fast even at low volume. 300 filter freq 95 hz freq range switch at times 1. filter mode switched to hp. filter slope 12db . all these settings taken off jl site for system 3. it was the close to mine.problemlow volume mids and highs. realy not there very flat not responsive if that makes any sense.then higher vol say 35 on a dial that goes to 60 it seems to lose control.tweeters kind of jump at you. the mid bass you can feel against your leg then all of sudden seems to reduse power to front. turn down vol and resets for 2 minutes or so and keeps doing this. the auto tune and ata is set to drivers seat. ata not bad. much better on than off. done the mike thing in a few places on drivers seat. i would like to get it somewhat smooth before going to tourament and looking like a idiot. as far as getting any help local.my closest shop is 22 miles away and he is a sub dealer he has one set of type r comps in his shop. as always thanks for the help.
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#1663478 - 06/13/09 05:23 AM
Re: looking for some good help
[Re: jerry_m]
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keep_hope_alive
in another life, i'm a serial killer
SD I Power Bombed the Undertaker
Registered: 04/24/07
Posts: 13370
Loc: Quad Cities, IL
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first, make sure your front speakers are not out of phase (electrically). did you use speaker wire with a black stripe for negative? make sure all of your speakers are properly wired.
next, get an IASCA test CD and run through the tracks. it has tracks that help verify proper acoustical phase and tonality.
instead of auto tune, can you manually adjust the settings?
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#1663583 - 06/13/09 06:15 PM
Re: looking for some good help
[Re: keep_hope_alive]
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jerry_m
SD Ralph Wiggum
Registered: 09/05/08
Posts: 27
Loc: northern nj
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today i set amps a little diff and redid tune. played with alot settings on deck. its better to my ears. all wiring is corect. its smoother thru volume now set tweets attn to -3. this deck gonna take some time getting useto. i wish i had more nohow on octive-slope-and crossover points and what to listen for.my wife ordered my membership pack.oh and it stopped losing power to front stage when i switched to times 10 500hz instead of 95 hz on mid amp. course now there is no bass out of them at all but i kindof think thats they way it should be? ? for ya being that the mid amp is at 500hz and the sub amp is at 100hz does this mean nothing plays between these hz?. thanks for the help again.
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#1665346 - 06/17/09 10:02 PM
Re: looking for some good help
[Re: jerry_m]
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keep_hope_alive
in another life, i'm a serial killer
SD I Power Bombed the Undertaker
Registered: 04/24/07
Posts: 13370
Loc: Quad Cities, IL
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those JL comps should play just fine down to 90Hz and vibrate your pants leg.
if you have the subs low pass at 100Hz and midbass high pass at 500Hz then you are missing everything between them.
so they cut out when they are given midbass, huh? how did you do the connections at the midrange speakers? solder? terminal with heat shrink?
i think you should put the high pass filter back at 90Hz. then disconnect the left speaker and just play the right speakers and see if it cuts out. then do the reverse and see if just one side cuts out. if so, it's a wiring problem - i.e. slight short.
it could even be in the passive crossover. where are those mounted?
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#1665655 - 06/18/09 12:49 PM
Re: looking for some good help
[Re: keep_hope_alive]
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jerry_m
SD Ralph Wiggum
Registered: 09/05/08
Posts: 27
Loc: northern nj
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there mounted in trunk.they dont cutout but they sure seemed like they powered down. i bought a set of powerbass tweeters and infinity beta 50. im going to expiement with a completely active system and see if i can get stage right and ta. i bought the tweets cheap so if i blow them no big deal.ive been doing a lot of reading on crossover,octive slopes etc, only one way to find out is to do it on my own. i plan on going to meca tour in md. hopefully someone there will help me with tuning so i know what im hearing.one quetion i have is should freq over lap each other sligtly or should it cut right off. also power bass tweets have there own inline crossover should i remove.one more thing ive read my deck manual front to back no where did i find which output for tweet amp id asume front .and rear high for mids it may say it on acualy preouts but dont remember.
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#1666277 - 06/19/09 08:00 PM
Re: looking for some good help
[Re: jerry_m]
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keep_hope_alive
in another life, i'm a serial killer
SD I Power Bombed the Undertaker
Registered: 04/24/07
Posts: 13370
Loc: Quad Cities, IL
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if you remove the cap from the PB tweets you'll have more control and be able to play the tweeters a bit lower with a steeper slope.
as far as overlapping, usually you want a bit of a gap so the two slopes add. but that is totally affected by the response of the drivers and if they are on or off axis to you. only an RTA can tell you exactly what the system is doing at the crossover frequency.
use your ears and see what sounds even. play tracks with instruments and listen for peaks or valleys in the response at different notes.
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#1666574 - 06/21/09 05:25 PM
Re: looking for some good help
[Re: keep_hope_alive]
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jerry_m
SD Ralph Wiggum
Registered: 09/05/08
Posts: 27
Loc: northern nj
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spent half aday putting all wires in loom. theres gotta be better way to do that.made the rack to hide this little amp. should be testing monday night. but going to us open. GO LEFTY. as always thanks for your help. i let you know how im making out. or ill let you know when ive lost it. thanks again jerry.
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