Trying to get to 155db+ @ 151.6 now

genxx
10+ year member

Team JL Audio
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Oklahoma
This is the situation. Currently 151.6 on TL burp, music 150.4 on TL. Looking for 155+ (155-158) burp and 154-155 on music.

Vehicle-S10 Blazer

Amp-T4000

Electrical to support it already

Subs-DD 9515G x 2

Install:Currently it is walled off with the subs facing forward on the passenger side, port on driver side.

Box tuned to 40hz. Have tried higher tuning to 48hz with no gain.

Cabin gain is at 54hz, tested using sealed enclosure and TL. The cabin peaked at 54hz.

It has to be the box. We have tried aero ports, L-Port, Slot Port all doing basically the same number.

The box volume is 10 cuft. which seems way to big as of right now.

Just not sure what to try now or what to start looking at to get a higher number. As tearing out an entire wall is a lot of work. So want some input before we just start tearing things apart.

Hoping maybe some of you have an idea to try.

We do have 2 more DD9515G BNIB also and 2 x DD2515 also.

Any input would be appreciated.

 
get some pics of your setup. lots of things could help you gain. just need to see it. especially your box. and personally i would go with a different amp

 
That is what we have kicked around already. When we had the 4 15's in before the highest we had gotten was 151.4 burp, music 149.7.

So we started looking at other options. We can go with 2 more 15's if needed. Just trying to get the most out of 2-15"s before we install two more.

 
We are not buying any different subs. He likes the 9500's and there is no reason to change to get the number's.

 
10 cubes burping? I've got a friend here in a Blazer with two DC Level 5 15's and 2 Sundown 1500D's and 5 batteries burping 154.5 and playing 151.5ish on music and the box is below the window line subs up port back.

His burp box is only 6.5 cubes for both subs as well...his musical box is 9 cubes.

Try smaller volume...I know with my single 12" @ 2 cubes burped a 150.7 all day long no matter what...I made the box 1.5 cubes and went to a 151.3....

Go smaller on the volume..worth a shot.

 
i can almost garauntee that its your box design.
I 100% agree with this. This is the third box we have tried. Only thing we can think of is we are off with all three box designs.

I will get pics up as soon as I can.

 
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genxx

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