why does my xcon sound like crap? i put it in a 1.5 cubic foot sealed subwoofer box with polyfil running it off a crescendo BC2k amp, subsonic on like 30 hertz and low pass on around 60-70hz

 

it doesnt sound like its hitting the notes right at all sounds really cheap actually , like something is hitting a wooden box

 

i previously had the 2 10inch alpine type r's in a custom ported box at 39 hertz (same radio, same amp, same settings) and it sounded WAYYYY louder, cleaner, better

 

is it an absolute MUST to get a custom ported box for it? 

 

the sealed box i got TEMPORARY till the summer when i build my custom ported box at 32 hertz, 2.5 cubic feet.

 

its a Belva 12 inch box from sonicelectronix with 1.5 internal NET cubic volume, dont say cuz its a prefab box, cuz if you built a custom sealed box with the same dimensions and 1.5 cubic feet it wouldnt even make a difference.

 

 

i have the D2 xcon wired down to 1 ohm to my nendo bc2k amp

Check for leaks and all connections.  The Xcon should never sound horrible if all things are ok.  Also, if not broken in, please give it time to do so.  It is not a must to port, but it does help a great deal on output.

im not blasting the sub on full potention now, im only playing my radio on volume 15-18/40 , i have the voltage tuned to about 1600 watts at volume 30 from my DMM

 

im just trying to break it in right now so ill see how it plays in about 3 weeks or so.

 

im 100 percent making a nice custom ported box for it but this was just temporary to put it in a sealed box, and there are no leaks anywhere, all seams are tight and all screws are in nice and tight using an impact drill, connections are all tight as can be as well

so i fixed it, it definately sounds better than it did before. the location made a HUGE difference and i tuned it to better frequency's from my amp and headunit. definately a huge improvement from before.

 

i had the sub firing sideways toward the quarter panel of my car (not firing toward the trunk or the cabin) then i made it fire to the trunk opening right behind the back seat and it sounded way better.

 

thanks for the help

Glad to hear it got sorted!

I haven't even heard ported xcons. I've heard them sealed and adored them. I cannot imagine "terrible" being a word to describe it.

so i fixed it, it definately sounds better than it did before. the location made a HUGE difference and i tuned it to better frequency's from my amp and headunit. definately a huge improvement from before.

 

i had the sub firing sideways toward the quarter panel of my car (not firing toward the trunk or the cabin) then i made it fire to the trunk opening right behind the back seat and it sounded way better.

 

thanks for the help

 

Just for kicks try lowering your LPF to 50-60hz.

 

If you have the gain set too high and clipping the signal then it wouldn't sound very good either. For what it's worth having the volume 15-18/40 is meaningless as is setting the gain with a DMM.

Edited February 14, 201411 yr by ssh

The title of this thread should have been "I don't know how to properly set up my sub stage, please help"...

Why are you using the infrasonic on a sealed enclosure?

Why are you using the infrasonic on a sealed enclosure?

its subsonic, the range does frm 15hz to 50hz on my amp, there is no off button, do i just leave it to 15hz?

Edited February 15, 201411 yr by royalblue08

 

so i fixed it, it definately sounds better than it did before. the location made a HUGE difference and i tuned it to better frequency's from my amp and headunit. definately a huge improvement from before.

 

i had the sub firing sideways toward the quarter panel of my car (not firing toward the trunk or the cabin) then i made it fire to the trunk opening right behind the back seat and it sounded way better.

 

thanks for the help

 

Just for kicks try lowering your LPF to 50-60hz.

 

If you have the gain set too high and clipping the signal then it wouldn't sound very good either. For what it's worth having the volume 15-18/40 is meaningless as is setting the gain with a DMM.

 

 

definately not clipping my gain isnt even set high at all, I PM'ed you

 

Why are you using the infrasonic on a sealed enclosure?

its subsonic, the range does frm 15hz to 50hz on my amp, there is no off button, do i just leave it to 15hz?

 

 

 

yep thats fine. subsonic and infrasonic mean the same thing. the prefixes infra and sub are interchangeable. 

Yep, no need to run a ssf at 30hz in that sealed. And yes the box means everything. You can run that in a sonic prefab sealed box but you could make a cheap ass 60 dollar sub sound as good as what you have now in a nice ported enclosure. Sealed setups sound great if they are on the large side, braced well and location is good, Prefabs normally dont meet those goals.