To much space?

[alaskanzx5]

Turn the gain down and see what happens. Might be pushing the subs to hard sure due to clipping.

How was the gain set, if by ear turn it down.

[Joe X]

It's 45.5" long

21.5" high

Top width 5.5"

Bottom width 9.5"

But each sub has it's own chamber that's 14" apart...I can't figure out how to upload pics from my ipad

Here's how to post pics:

http://www.stevemeadedesigns.com/board/topic/175929-how-to-post-and-resize-photos-with-photobucket-tutorial/

If the box is ported describe the ports.

[slowfkncar]

To big of an enclosure could cause earlier soft/hard bottom but it should be loud before it bottoms. My guess is the box is ported and it is to loud below tuning or improper port area per foot judging off of what you said about "should be louder". I have a 12" 350watt infinity on 1200clamped(sq3500.1)3.5net 68sq.inch of port, yes i can easily soft bottom but it is stupid loud before it does.

If yours doesnt get loud off low power then its probably not the internal air space.

[rfbasshead]

[rfbasshead]

[rfbasshead]

See how in the first pic there's like a wall? That what I meant by 14" they made the box, so each sub has it's own chamber.....it's a sealed box btw

[Joe X]

Ok so you have about 0.8 cubic feet net per chamber should be 0.6 cubes net sealed to manufacturer's spec, little difference to cause significant issues, coils in series, subs in parallel should put you at a final load of 2.6 ohm or about 350 RMS per sub so that's ok too.

You should describe the issue and how it started and when does it occur, just at loud level or all the time, what head unit.

You should test polarity to be correct on the coils and to the amp, also you could test subs individually.

You should test the voltage at the amp's input terminals never to go below 13V when playing and go through a gains setting procedure if you didn't do so.

[slowfkncar]

Hmmm. Clipping,leaky or cracked box or bad amplifier. It is also possible you have one wired out of phase. However as joe-x said, check your input voltage on the amp,when your subs flutter,check the voltage at that very moment and make sure its still abive 12.6 ,rockford amps clip sooner when less input power is available.