sub's frequency range?

[RJesus 10+ year member]

I'm a little unsatisfied with my sub's output for a lot of the rock songs I like to listen to.

Right now I have a sundown saz1500 powering a 12'' dc lvl 4 in a slot ported box tuned @ 32 hz.

the DC website says the sub is built for ported enclosures, so I think sealed is out of the question.

what kind of box/what should it be tuned to?

I don't want giant peaks, but I want a strong 60-80 hz playing range. But I don't want to sacrifice ALL the lows (30-50 hz) but of course they wont be as loud as they are now.

I know around the 80hz mark is where midbass speakers should take up the slack, but I'd like some usefulness out of my sub, so its not playing w/ 1000w like a girl whenever I decide im in a rock mood.

Click to read more...

 

[RJesus 10+ year member]

??

 

[adio25 10+ year member]

I know some people with 2 garbage 12's in sealed boxes running off 600w rms (plus clipping im sure) hit highs MUCH louder than my type r 12 @800w rms and HDC3 12 @1500rms in a ported box.

 

[S.B.C. 10+ year member]

you want to wide of a band for a reg ported box

do a bandpass then

 

[2loud4youmorris 10+ year member]

I'm a little unsatisfied with my sub's output for a lot of the rock songs I like to listen to.
Right now I have a sundown saz1500 powering a 12'' dc lvl 4 in a slot ported box tuned @ 32 hz.

the DC website says the sub is built for ported enclosures, so I think sealed is out of the question.

what kind of box/what should it be tuned to?

I don't want giant peaks, but I want a strong 60-80 hz playing range. But I don't want to sacrifice ALL the lows (30-50 hz) but of course they wont be as loud as they are now.

I know around the 80hz mark is where midbass speakers should take up the slack, but I'd like some usefulness out of my sub, so its not playing w/ 1000w like a girl whenever I decide im in a rock mood.

For a 12 go for around 45hz that sound get you some good sound quality and a wider frequency range.

 

[RJesus 10+ year member]

Then your doing something wrong...

but anyways that has nothing to do with anything i've said??

DC suggests the subs be played in a ported box, not sealed.

Reasons why? IDK. anyone else have a clue?

 

[RJesus 10+ year member]

I have A, and I want B

so a bandpass would widen the frequency range?

 

[RJesus 10+ year member]

Actually, I forgot to make B slope down after about 80 hz, But thats what I'd like to have.

 

[T3mpest 10+ year member]

Turn your lpf up higher. A ported box does not effect the upper end frequency response of a sub in a negative way. As a matter of fact you gain output above the tuning frequency for a good half octave or so. Above that it acts just like a sealed box. The only reason it seems less is because you have so much more low end ouput masking the upper range, which in most rock music shouldn't be alot. Turn up your LPF and if you have an eq drop the 30-40hz region as much as you can. IF not try sealing the port off with clothes or something see if it helps. The subs will roll off pretty fast in a sealed box, which is why it isn't recommended, but since you want balanced output, that's not a bad thing. If you like the sound you may want to seal it off permanently or get a port plug.

Also changing the way your box is facing may help. In my caddy if I don't face the box towards my trunk lid I lose all output above 60hz. Heck, if you in a trunk you may find getting output up to 80hz to be hard anyway as the higher in frequency you go the easier it is for the frequencies to be trapped in your trunk.

 

[RJesus 10+ year member]

Thanks I'll try that tomorrow.

I set my low pass filter to about 100hz, But I think it should be much louder than it is.

Are you sure a ported box doesn't effect the higher frequencies?

would a bandpass box make the higher frequencies louder?

I honestly don't care about a flat frequency, I just want the rock-bass to be louder, but i don't like hearing NOTHING but a bass drum, I want it all to be loud //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[T3mpest 10+ year member]

100% sure, go get winisd and model it yourself. Above tuning the port stops working at all and the box behaves as a sealed box of the same volume. Below tuning the port acts as a hole in the box as the frequencies are too low to be contained. Around tuning it acts as a hermholtz resonator. A bandpass box can give you more output up top, but really it won't fix the problem.

My car can produce very lifelike drum attacks. With a good drum recording my car can reproduce drums comepletely accurately. Even to the point of feeling the air electrify on a sharp hit and making you blink. I've been around drums all my life and my friends in the high school band have even agreed my car pulls them off convincingly. Not just tonally either, I mean I have the actual SPL of someone wailing on a drum kit.... I've never had anyone set in my car without a "holy shit" face when I play a few well recorded tracks at a lifelike playback level. I'd also like to mention I don't even have a sub in my car at the moment. Most of the attack and feel of a drum hit is located well above what a subwoofer will play. Even if you turn up your crossover your not likely to ever get what you want from your sub. Also not all tracks are recorded well which may be why you feel you setup is lacking. The best part of a drum runs from 80hz-300 with the attack on snares etc being even higher. To ever get what you want your going to need a badass set of component speakers. Not even necessarily big speaker with high xmax as alot of ppl will tell you. Just like really high frequencies midbass is mostly effeciency based. The best speakers I ever heard on drums was a set of JBL 2188h's. 3mm of xmax but 99db/1w/1m effecient. If I hadn't got a good deal on my xs69's that's what I would have used for sure. My XS's are a bit less effecient so not quite the same snap or overall volume, but they still get pretty ****ed loud and play quite a bit lower. Anyway download these three tracks to test your midbass, all three have well recorded drums in the opening.

1. Cry Tough by poison

2.move along by all american rejects.

3.no excuses by Alice in Chains

Try those three and mess with your crossover points. Those tracks are easy to find on any file share and have great drums right in the opening. All three make people shit bricks in my car. Also I forgot to mention a bandpass also rolls off very fast past the upper end where you boost it. Odds are you'll get ALOT more output from say 80-120hz or so, but it will fall off super fast past that. You'll get loud but very muddy midbass and it won't sound crisp at all. The bottom part of the drum the third track for example, you'll get that darker muddy part really well but no attack when he hits it, just a humming sound.