Jump to content
Second Skin Audio

AA Mayhem 18" on crescendo 4K looking for another sub..HELP


Marquisboys

Recommended Posts

Alright lets see, i have the mayhem 18" in about a 8.5cu box after disp tuned to around 35hz 36hz..that box was for my AQhdc3 that is blown. powered by a crescendo 3500d. I have 2 6.5 soundqubed pros in the front and the super tweeters by soundqubed. I have a pair of image dynamics 6x9 in the back. 6.5's and 6x9 powered by the soundqubed 125.4 amp. The supertweets are on a mb quart 80.4 amp. Got 1/0 going to the sub amp and 4 gauge going to the speaker amps. have a 250 amp alt and the XS power battery in the front D3100 and going to get another one in the trunk. Sub amp gain is set correctly lol trust me on that and the subsonic is at about 30hz and the lp is at 80hz. I also have 8 gauge wire from the sub to the amp. Oh and dont worry i like getting different advice from people.

2004 Grand Marquis
AA Mayhem 18
Crescendo 3500d
6.5's AQ Pro Audio
AQ Super Tweets
Image Dynamics 6x9
Soundqubed 125.4
MB Quart 80.4
144.2 db

GONZO

2013 Chrysler 300S

Granite Crystal Metallic Exterior

Inferno Red Interior

5.7 HEMI AWD

LMI Air Hammer Intake

Corsa exhaust

Custom Tune

Link to comment
Share on other sites

If you have that much net airspace, why don't you just start by making your port longer to lower the tuning.

Current system:

1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s

Previous systems:

2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz.

1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.

Link to comment
Share on other sites

Well my box right now is in the trunk ive taken out my back seat and cut metal for airflow. its a huge trunk its in an 04 grand marquis. So i have the sub up and port up. height of the port would be 25" and the depth of the box is around 21" and the port width is 4.5". i have tried sub and ports towards the rear of my car and ppl say the sound waves for lows will be better, that isnt true with my car cause if you look in the trunk there is a ledge in it that would block the waves from going in the car completely. So with the new box i need the height to be level with the top of the ledge which is at 18 to 19" so airflow can go into the car better.

2004 Grand Marquis
AA Mayhem 18
Crescendo 3500d
6.5's AQ Pro Audio
AQ Super Tweets
Image Dynamics 6x9
Soundqubed 125.4
MB Quart 80.4
144.2 db

GONZO

2013 Chrysler 300S

Granite Crystal Metallic Exterior

Inferno Red Interior

5.7 HEMI AWD

LMI Air Hammer Intake

Corsa exhaust

Custom Tune

Link to comment
Share on other sites

  • 11 months later...

Did you ever build a new box and how was the outcome?!?!

2007 Chevy Tahoe (SOLD)

12 ~ FI Audio X series 10" w/BP option

2 ~ DC Audio 5.0K @0.67

3 ~ DC Audio 5.0K @1.0 

2 ~ PPI 3 way sets (not installed yet)

1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4

4 ~ CT Sounds 5.25" Strato comps  (rear fill only)

1 ~ XS Power D4800

1 ~ XS Power D3400

8 ~ XS Power XP3000

160 stock alt, Mechman 370 Elite, 185 DC Power

320+ Sq. Ft. Sound Deadener

Pioneer AVH-X5500BHS

Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0

Link to comment
Share on other sites

Shit no, pissed. Engine block had a crack in it so i sold the car. Ripped all the equipment out, now the mayhem is sitting in the shed. Dont think it'll fit in the new car

2004 Grand Marquis
AA Mayhem 18
Crescendo 3500d
6.5's AQ Pro Audio
AQ Super Tweets
Image Dynamics 6x9
Soundqubed 125.4
MB Quart 80.4
144.2 db

GONZO

2013 Chrysler 300S

Granite Crystal Metallic Exterior

Inferno Red Interior

5.7 HEMI AWD

LMI Air Hammer Intake

Corsa exhaust

Custom Tune

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   0 Members, 0 Anonymous, 526 Guests (See full list)

    • There are no registered users currently online
×
×
  • Create New...