Sundown x12v2d2 4th order

[OrzechNJ]

Hello,

So I recently installed Sundown x12v2d2 with deafbound aab1500 amp wired to 1ohm in my 2020 dodge charger. Stock battery replaced with D4800 and secondary D3400, 0gauge DC/SHCA wiring, 8 gauge speaker wire, RCA's connected to PACamp pro in the back of the H/U. I'm planning to ugrade the mids/hights and sub amp to 2500watt in the future but I have to get this box situatuion figured out.

The sub is playng lows very well, but anything over 40hz sounds like shit. My guess is that box I build is tuned too low. I played a lot with crossovers and moving the box around but it doesnt sound any better..

I used subbox pro website to design the box and I cut it from 3/4" birch on CNC. Dimensions of the current box: 28wx14hx20.5d 2.5CF net and tuned to 32hz as recommended by Sundown. The port area is 40sq inch (3.18wx12.58"hx34.35l).

I was thinking to build a small 4th order. The max dimenions of the box: 30wx14hx20.5d.

Can somebody help me or refer me to the right person that could desing the box for me?



Disregard the hanging speaker wires. I had audiocontrol hooked up to the rear speakers before I install Pacamp pro..


thanks,
Pat

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[spokey9 5,000+ posts]

If you're tuned to 32hz, 40 should sound fine imo

 

[spokey9 5,000+ posts]

GP Glue it and Screw It High Output Subwoofer Enclosures

GP Glue it and Screw It High Output Subwoofer Enclosures

gpcaraudio.com

Gp is probably the best bang for your buck on a good box

 

[Firewalker]

Plus subbox pro isn't known for being exactly accurate on stuff. Hence why people use Win Isd or pay for a custom box design.

 

[OrzechNJ]

so who would be the right guy to contact for a box design?

 

[shredder2]

Imo if you are tuned 32hz that 40hz and above content should be fine. I'd explore signal issues 1st. X's are great down low yes but having poor response above 40hz shouldn't happen, it really sounds like the signal is filtered and/or boosted somewhere to me.

 

[SilverSquared 10+ year member]

What is your factory system?
Which wires did you tap for signal?
Bass roll off is at volume 22.
If you have Alpine or Beats, you can only use driver side rear speaker.

 

[Jimi77 Premium Member]

I'd try rear facing. Have you tried opening the trunk to see if that restores your bass?