Ok, as some of you followed my previous threads, I built a custom vented box. It turned out quite nice and looks good, but...


...all it does is hit extremely low. And I mean loooooow. Which isn't a bad thing if that is all I wanted to hear. I made the smallest vented box specified for the Kicker C10 Comp hoping it would provide a nice range of bass. I was wrong. I am getting no mid/low bass for drum beats, etc. The box is set for 42Hz. I have LPF set at 100Hz and have a SSF set at 30Hz (FMOD RCA's). I've tried setting the LPF at several freq's from 150Hz down to 75Hz. No luck.

So, my question is, if I build a sealed box (minimum specs calls for a 1.0cf box up to the max spec'd at 2.4cf) for only one 10" Kicker Comp, will it have enough oomph to fill the void I am missing in the Maxima?

I have only about $38 invested in this box with carpet, caulking, liquid nails and the wire terminals, so I am not out much. Actually might be able to re-use the carpet and can use the terminals on the new one.

 

No harm in trying a sealed box. It should provide you with what you're looking for.

 

link me to the box plans you used. if in fact it is a 42hz tune then there is no way you are lacking in high end; and having extreme low end. 42hz is where you will start seeing useable output and from there on is a large peak in output up to where you say it is lacking.

 

The box is my own design based off of the specs Kicker provided.

My box dimensions are as follows using 3/4" MDF:

The Box is 20" wide x 10.75" deep x 16" high (overall box dimension)

The port is 10.5" wide x 1.5" high x 15.25" (internal dimensions)

Kicker tech manual states that if you put a 90 degree bend in the port, you have to add 1/2 the height of the port to the overall length to compensate for the bend. Straight port length would have been 14.5", but my design has a 90 degree bend.

Kicker specs are located here: http://www.kicker.com/06/tech-suppor...ManualV2_0.pdf

PAGE 22 C10 Kicker Comp is the air space and port length/volume I based my design off of.

I am running a Alpine 160 Watts RMS 2 channel in 1+2 mode, LPF turned on, gain at center, and installed 30 Mhz FMOD subsonic filters today.

 

kicker cracks me up: they have a correct method of breaking in the sub with a tone generator, but then BS up the wazoo with this "street" bass nonsense. anyway you can tell by the chart on page 12 you have no low end and a nice peak in output right where you say it is lacking. go to realm of excursion and dl some test tones...try finding the 30-50 slow warble and similar tones. moreover, get 35hz tone, 45, 55, 65, 75, 85 and put all fo these on a CD and see how they sound.

 

Just downloaded some of the slow/medium warbles and test tones.

 

The thing im not getting is your saying it gets looooooow, but LOW is under 35hz...I mean really really low. Like shaking your vision and your insides low.

With a 42hz port tuning freq I really dont think your sub can play those notes.

The question is what void is it that your missing? what exactly are you looking for?

 

Mid-bass. I have new 6.5's front and rear, but they are cut-off at 200Hz. That might be my problem. I purchased standard bass-blockers for them. I think I might need to get different uf rated capacitors to allow more mid-range to pass thru the 6.5's. Maybe 150Hz and higher.

 

holy hell. i have my mids crossed at 80...200hz is way too high. still dont understand this abundance of low bass....go play some 3 6 mafia-late night tip and see if your ears feel funny.

 

Late night tip has the worst/muddyest bass lines I don't know why everyone loves it.

 

the song is clipped I hear...but honestly I have no found a better song for low bass played at high levels. there are harder hitting songs, but for sub 35hz bass it owns. the song itself sucks though.

 

Well that could be part of my problem right there.

In the past I ran Kicker components and actual crossovers that came with them, so I didnt have to muck around with all this ****. But getting older with wife, kids, and house, the funds aren't what they use to be so I am running the 2-way 6.5 Infinity's off of the deck and using caps.

I grabbed the bass-blockers cause they were easily accessible, local and were stated to be good for 5.25 and 6.5 speakers. I thougt the cut-off was kinda high, but.... ...live and learn!

So I am looking at the caps at www.partsexpress.com now to determine a better cut-off.

 

the 2 ways can play full range though? just keep the bass on the h/u to flat and you are ok. giving them h/u power even with a song like Late night tip wont phase them as long as the eq is flat in the bass area. if you wanna be extra careful just put the bass to -1. what radio do you have? either way I say ditch any sort of bass blockers and see how it sounds. have you played the test tones yet? Im curious to what you find...and to see if in fact your box is tuned to 42hz.

 

Sony CDX-GT300 with sub out RCA's set to 78Hz. I am running lows at +2, Mids at +2 and Highs at +4 on headunit.
Yes I did. 30Hz was very quiet, but from 35Hz up to 85Hz I was able to get some good results. The slow medium warble definately shook the mirrors and rattled the rear deck.

I played around with my settings, decreased the gain on the amp, increased the sub out volume on the head unit and I am starting to get much better results from the sub. Definately sounds a lot better than a few days ago.

 

i can tell that the speakers are run off the h/u by the settings. put the lows at 0, mids at 0, and leave the highs as you want. however, put the lows at -1 if you are paranoid about blowing the 2 ways off h/u power without the bass blockers. put the sub out to close tothe highest setting and reset the gain and see how you like it. now remember with test tones:they are played much louder than music is at that frequency...with my setup i cannot play test tones below 45hz at more than 1/2 volume before it becomes too much.