Can't bang low notes. Why? - Realm of Excursion



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Old 04-13-2007   #1 (permalink)
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Default Can't bang low notes. Why?

Well my brother's sub doesn't seem to play really low notes very loud. It's a 12" type-r in a 3 cube box tuned to 35 hz. It should play low notes good but it doesn't. We played Hyptnotize by Young Jeezy today and it wasn't even loud. And the low notes in "Late Nite Tip" and "Throw It Up" are way quiter than the higher notes.

So why? I don't get it. Should we mess with the amp and HU settings? Is the Car changing the tuning?
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Old 04-13-2007   #2 (permalink)
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check your SSF?
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Old 04-13-2007   #3 (permalink)
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i still dont trust the subwoofers tools one that you used.
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Old 04-13-2007   #4 (permalink)
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subsonic filter, being tuned to 35hz, or maybe you have a bass boost on on either the head unit or the amp that is boosting the higher frequencies.
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Old 04-13-2007   #5 (permalink)
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SSF = sub sonic filter right?
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Old 04-13-2007   #6 (permalink)
 
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SSF = subsonic filter, and yes its very possible that it is not set properly. usually you want to set the subsonic filter about 10hz lower than the tuning frequency of the box.
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Old 04-14-2007   #7 (permalink)
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i just put it into bass box, and it says the box is tuned at around 37hz, and is peaking at 40hz.

then factor in your car, which can make the peak go up or down. in mine, its up about 4-5hz.
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Old 04-14-2007   #8 (permalink)
 
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so if i have a sealed box running 3 diamond audio d3 what should ssf be set to
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Old 04-14-2007   #9 (permalink)
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Actually the box is tuned to 35, I used the port length formula a long time ago and it equaled 35.

A 3 cube box with 37.5 inches of port tuned to 35 hz needs a 22.5" long port.

I think the SSF is somewhere around 30. Should I put it to 25? Will it make a difference? There is no bass boost on at all. Just the gain and sub output are up.
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Old 04-14-2007   #10 (permalink)
 
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i used to have the ssf on my amp set to my tuning frequency (34hz) and late night tip still wanged hard on the lows... now i've got it set to 24hz i noticed a slight difference. not a huge one in the hearing dept but they feel better now.
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Old 04-14-2007   #11 (permalink)
 
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its your subsonic filter dude
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Old 04-14-2007   #12 (permalink)
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I have a 15'' Type-R and have the exact same problem...

box is tuned to 34hz and subsonic is turned all the way down, any suggestions?
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Old 04-14-2007   #13 (permalink)
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Quote:
Originally Posted by Dylan Dude View Post
Actually the box is tuned to 35, I used the port length formula a long time ago and it equaled 35.

A 3 cube box with 37.5 inches of port tuned to 35 hz needs a 22.5" long port.

I think the SSF is somewhere around 30. Should I put it to 25? Will it make a difference? There is no bass boost on at all. Just the gain and sub output are up.
well thats without factoring any of the sub in, which bass box does.

and yes doing it out by hand which i have in front of me gives 35.08381923hz

set your subsonic different and go from there.
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Old 04-14-2007   #14 (permalink)
 
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work with the subsonic i also had the same problem on my old setup the subsonic was all the way down just remeber in the future to look into the subsonic if equipped look at range especially
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Old 04-14-2007   #15 (permalink)
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would the phase setting have to do with anything in this situation
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Old 04-15-2007   #16 (permalink)
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Originally Posted by mjf595 View Post
well thats without factoring any of the sub in, which bass box does.

and yes doing it out by hand which i have in front of me gives 35.08381923hz

set your subsonic different and go from there.
Well I did the math on the cubic feet of the box and the box is exactly 3.076 cubes, and then with sub displacement it's 3.005.

So you guys think it might be the SSF filter? If I change that, will it change the voltage if I change it? I don't feel like setting the gain again.
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Old 04-15-2007   #17 (permalink)
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Is it possible for you to take a picture of the settings on the amp? Ive ran a type R with a 1206D brutus in a 3cube tuned to 35 and it hit lows just fine, so im sure its a setting.
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Old 04-15-2007   #18 (permalink)
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So... I want to set my SSF 10Hz or so lower than what my box is tuned to? for example, my box is tuned in the high 20's, 27 or 8 i think. I should set the SSF17 or 18? my amp kicker zx400.1 only has x-over, gain, and bass boost settings, i believe the SSF is set from the factory at 25hz, is this correct? if so, how am i supposed to adjust it. Im not right? yeah, it is set at 25hz, either, turn it on, or turn it off.
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Old 04-15-2007   #19 (permalink)
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Is it possible for you to take a picture of the settings on the amp? Ive ran a type R with a 1206D brutus in a 3cube tuned to 35 and it hit lows just fine, so im sure its a setting.
That's awesome dude. Great news. I'm gonna go take a picture of the amp now.
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Old 04-15-2007   #20 (permalink)
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So... I want to set my SSF 10Hz or so lower than what my box is tuned to? for example, my box is tuned in the high 20's, 27 or 8 i think. I should set the SSF17 or 18? my amp kicker zx400.1 only has x-over, gain, and bass boost settings, i believe the SSF is set from the factory at 25hz, is this correct? if so, how am i supposed to adjust it. Im not right? yeah, it is set at 25hz, either, turn it on, or turn it off.
Well I dont believe that you really have to worry about your sub playing a lower note than the music (thats what the sub sonic filter is for) since you are tuned soo low. Im tuned to 30 and my ssf is set at about 18 (goes down to 15) bass in everyday rap is usually in the 35-60hz range. Tuned that low only thing you really would have to watch out for would be bass tracks and bass i love you gets low.
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Old 04-15-2007   #21 (permalink)
 
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in Car peak is higher than your enclosure tuning.

just because your enclosure is tuned at 35 doesnt mean thats goign to be your peak.

your peak is probably around 50-55 hz

hitting those REAL lows, below 30hz are going to be tough without a new enclosure tuned lower, and /or you MIGHT get them to play if you turn the subsonic filter off, or all the way down... and dont use a bass boost on your headunit. try toget a flatter response. you are also now seeing the importance of a highquality aftermarket eq
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Old 04-15-2007   #22 (permalink)
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in car peak is higher than your enclosure tuning.

just because your enclosure is tuned at 35 doesnt mean thats goign to be your peak.

your peak is probably around 50-55 hz

hitting those REAL lows, below 30hz are going to be tough without a new enclosure tuned lower, and /or you MIGHT get them to play if you turn the subsonic filter off, or all the way down... and dont use a bass boost on your headunit. try toget a flatter response. you are also now seeing the importance of a highquality aftermarket eq
So your saying it's probly the car's tuning? That sucks. Oh and we don't have any bass boost on, just the Gain on the amp and the sub output on the HU are turned up.
But i need to know if I change the SSF, will I need to reset the gain?

EDIT: wait, I think that some setting on the HU is set to custom, when it could be set to flat. Should we change that?
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Old 04-15-2007   #23 (permalink)
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So your saying it's probly the car's tuning? That sucks. Oh and we don't have any bass boost on, just the Gain on the amp and the sub output on the HU are turned up.
But i need to know if I change the SSF, will I need to reset the gain?

EDIT: wait, I think that some setting on the HU is set to custom, when it could be set to flat. Should we change that?
just don't turn the bass setting or the low eq setting on the headunit anywhere other than zero.

you might need to lower your gain if your sub is moving too far on low notes with the subsonic filter down. If you do that you'll be sacrificing overall loudness for more low-low end.

A lower tuned box is probably the way to go. Or try sub up port back. That might help your low end phasing.
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Old 04-15-2007   #24 (permalink)
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nah, a new box is not an option. We'll just mess with the settings and if it doesn't change, then o well.
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Old 04-15-2007   #25 (permalink)
 
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Quote:
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So your saying it's probly the car's tuning? That sucks. Oh and we don't have any bass boost on, just the Gain on the amp and the sub output on the HU are turned up.
But i need to know if I change the SSF, will I need to reset the gain?

EDIT: wait, I think that some setting on the HU is set to custom, when it could be set to flat. Should we change that?
i'm saying it COULD be your cars tuning...

if you changed your ssf it would be a good idea to check your gain, and make sure you arent clipping, but it should be fine.

as for your headunit.. i dont know what setting you are reffering to. but i'm guessing the eq, if its set to custom...

change it to whatever sounds good to your ears.
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