Not getting much output from 15" Q Sealed

[kicker06 10+ year member]

Ok, well my current setup consists of a 15" Q, BX-1500d (1500w @ 1ohm) and a sealed 2.1cu box (birch). And I am not getting very much output at all. I had the Q in a 4cu ft @ 32hz box before this 2.1cuft sealed box, and it WANGED hard as hell, but now it is defiantly lacking.

Settings are as Follows:

Gain on BXi-1500d @ 1/2

Bass Boost off (BXi-1500d)

SSF turned Off

Gain has been set on amp

Headunit Settings: (Pioneer 5800mp)

- Sub level is @ 3/6

- Bass level @ 4/6

I really don't know what to do. I know sealed is not as loud as ported, but I don't really have any output. Wiring is correct (checked it thrice) on the sub, amp, everything.

What to do?

Click to read more...

 

[squeak12 10+ year member]

Thats an awfully small sealed box for a 15, no?

 

[Qbenjamin 10+ year member]

What your first thought told you and change the box. Also take your woofer out and check the connections to your coils.

 

[James Bang 5,000+ posts]

maybe you need to put your sub level on 6/6. I'm not sure if it's the same, but alpines sub level needs to be 15/15 to get the full 4v out of the pre-outs.

 

[BIGsherm7272]

turn sub level all the way up, bass at 0 db

 

[James Bang 5,000+ posts]

Thats an awfully small sealed box for a 15, no?

FI's recommendations are 2 - 2.6 cuft. so 2.1 cubes doesn't seem bad.

 

[bk12321 10+ year member]

2.1 sealed sounds fine

sub level should be maxed out on HU

bass i usually leave mine at +1 or 0

 

[Pickler 10+ year member]

Why did you switch to sealed?

 

[joetama 5,000+ posts]

Maybe I am really confused about how to set gains...

But, I NEVER put my sub output all the way up... //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[neonrt 10+ year member]

maybe its wired series?

 

[ngsm13 5,000+ posts]

Maybe I am really confused about how to set gains...
But, I NEVER put my sub output all the way up... //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

The sub-out level on your Alpine?

I set mine at 12 out of 15... for the level.

Also, aren't you the r-tard that wasn't happy with it ported? Then figured it out?

It is OBVIOUSLY going to be NOTICEABLY less sealed.

//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

nG

 

[neonrt 10+ year member]

The sub-out level on your Alpine?
I set mine at 12 out of 15... for the level.

Also, aren't you the r-tard that wasn't happy with it ported? Then figured it out?

It is OBVIOUSLY going to be NOTICEABLY less sealed.

//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

nG

agree about the sealed be quieter, but it should still be pretty loud.

 

[kicker06 10+ year member]

Like I said in my first post, I knew it wasn't going to be as loud as ported. I never said I didn't like it ported, all I said was I wasn't getting that much output, but I fuxored around with my HU to get more sound.

I've been told, the sub-level clips @ 5/6 and up

I switched to sealed, because the ported box was too big and I don't have enough room in my trunk for other things (bags, can't get spare tire out).

As for connections...like I said, the connections are all good, nothing is wrong with them.

 

[HitManSE 10+ year member]

I had the same issue when I went from ported to sealed, after messing around with the setup on & off for a little over a week I finally got some output out of it.

Its acceptable, and dependant on the song can get pretty loud. Its still liked the ported version better but its done for now.

 

[Bolognablake 10+ year member]

So is it distorting? Are you throwing everything the amp has at it without clipping the hell out of it? Are you sure the box is air-tight?