General questions about tuning.

[digital mint 10+ year member]

I'm trying to figure out my tuning properly. When i high pass my front stage at 80 htz and low pass my sub at 50 Htz my system doesn't sound punchy at all. My doors are not completly sealed yet (only the outer panel is deadened). so what i've been doing

is tuning my sub at like 130+ to get some sort of punchiness. My sub is XXX15 in a sealed box. I'm not underpowering anything (150w x2 front, 1500w for sub). would deadening the remaining of my doors make that much of a difference? i'm i just missing That punchy feelling from my comps( ID Chameleons)? Please help

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[digital mint 10+ year member]

well... thanks to everybody's overwhelming response... i discovered that my mids were installed poorly from the audio shop. turned out the mids were not sealed well at all. After fixing that, they sound like 100% better. Still can't figure out why my sound from my sub at 60HZ is no good at all. I will try different tuning tomorrow to see what happends. my frontstage amp is HP at 60 or so. Will report tom. if anyone care. thanks for all your help.//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[liar2 10+ year member]

May I ask why your HPF is set at 80 Hz? That seems awfully low for a high pass

 

[JimJ 5,000+ posts]

Actually, it's right in the range of where it should be...but why are you running a HPF @ 80 and a LPF @ 50? Seems to be quite the gap there...

 

[digital mint 10+ year member]

Actually, it's right in the range of where it should be...but why are you running a HPF @ 80 and a LPF @ 50? Seems to be quite the gap there...

uhm you're right. So should i have no gap at all or a LP of let say 70 would be ok?(thanks for the help)

EDIT: i should have said that at lower frequenties (for my sub) my system sounds like crap. If i set my sub at 70 or below, all i get while i listen to music (mostly DNB) is the occasional overwhelming very over the top long boom.

 

[JimJ 5,000+ posts]

You don't want gaps in your bandwidth...try raising the sub's LPF and see what happens.

 

[digital mint 10+ year member]

You don't want gaps in your bandwidth...try raising the sub's LPF and see what happens.

Don't know if you replied before i edited my last post but i will try that tomorrow and report back. thanks

 

[maylar 10+ year member]

uhm you're right. So should i have no gap at all or a LP of let say 70 would be ok?(thanks for the help)
EDIT: i should have said that at lower frequenties (for my sub) my system sounds like crap. If i set my sub at 70 or below, all i get while i listen to music (mostly DNB) is the occasional overwhelming very over the top long boom.

Personally I like a bit of overlap in crossover point. Like 70 hz hipass on the mids and 80 hz lowpass on the subs.

If all you get from your sub is boomy noise you need to look at the enclosure. Lowpassing a sub higher usually makes that condition worse... most subs don't do clean midbass.

 

[digital mint 10+ year member]

Personally I like a bit of overlap in crossover point. Like 70 hz hipass on the mids and 80 hz lowpass on the subs.
If all you get from your sub is boomy noise you need to look at the enclosure. Lowpassing a sub higher usually makes that condition worse... most subs don't do clean midbass.

thanks for the advice. I will be out in a few minutes to try different tuning again. my enclosure if pretty much what RE recommends for my sub (2 cubic feet sealed) funny thing is that when tuned high, my sub actually seems to take it quite well!

 

[digital mint 10+ year member]

only have a few minutes to add to this but i think my problem are my midbass drivers(ID Chameleons) I set my HP to 70 ish and there is almost no bass coming from them. The woofer hardly moves at all. I double checked to make sure they're wired properly and they are. I know i'm feeding them the right ohm(4). Next i'll see if the magnet somehow is touching the frame of my doors. Will report back.

On a side note, my sub LP to 80 ish sound good and tight now.

 

[digital mint 10+ year member]

Speakers are fine(not touching metal)...Then i thought of something. On my Alpine deck(9827) I have the option of by-passing the onboard EQ to send a flat signal to my amps, thats what i was using. Now if i allow the headunit the controls again...Bingo! it's like night and day, i get exceptional sound from my mids and even my sub.

Will try to keep this short...//content.invisioncic.com/y282845/emoticons/blush.gif.99bc659ee2012b7d826165e26fb5eebe.gif

Now if i use my HU onboard EQ, What do i do about the settings already on my amps? i'm i supposed to match them up? Does it matters? Thank for bearing w/ me.