subs not hitting hard at all

[code8]

Hi all, so heres the set up Im running a pioneer FH-XT720BT, HIFONICS BRUTUS ELITE 1700.1D, TWO S12L74, installed in a custom box 1.0cft from soundoff audio in 08 silverado crew cab. the subs are downward firing and are wired at 1 ohm tested with voltage meter. So can someone please tell me why these aren't hitting hard at all? I started with the one sub wired at 4 ohm to a t600.2 channel and it sound decent so i thought as soon as the 2nd sub came in i would be moving hair. but thats not the case at all.

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[LosIsATool 5,000+ posts]

A few things.

That amp is weak and overrated.

1 cube is WAY to small for a L7 12.

Nothing you said says hair moving. Not even close

 

[code8]

yeah i thought the 1 cube is not enough but min is .88 sealed but why do you think the 1 sub at 4 ohm hit harder than 2 at 1 ohm?

 

[LosIsATool 5,000+ posts]

yeah i thought the 1 cube is not enough but min is .88 sealed but why do you think the 1 sub at 4 ohm hit harder than 2 at 1 ohm?

With that amp maybe. Are they in separate enclosures? If not than yes it easily could be better with one.

Kickers minimum is to help sales of thier prefab packages. Marketing. They are very shady with the fine print.

 

[crosjr 10+ year member]

Aside from the probable box issues, double check your polarity on the 2 subs.

 

[Shorty Jenkans]

Get a bigger box and you might have the subs wired opposite which would greatly decrease output. What I mean is that one sub is 180 degrees out of phase. So it pushes while the other pulls.

 

[oxsign 5,000+ posts]

1 12 wasn't fighting another for airspace (although .88 still isn't enough). Now you have 2 12" in 1 cube. This is where your problem is.

 

[code8]

they are in separate enclosures

 

[code8]

tried the polarity about the same

 

[oxsign 5,000+ posts]

Air space is still a major issue. 1 cube 12" Kicker at that is choking them. They should be seeing 2-2.5 ea at a minimum. With the space you have 2 cubes (1 per sub) I'd do 2 8s or maybe 2 10" depending on which ones (not Kickers).

 

[Jeffdachef 5,000+ posts]

cant believe the shop actually charged you for a garbage install like that aka fitting that much cone area with soo little airspace with sh*tty orientation.

 

[oxsign 5,000+ posts]

"Side note: even if they were in there right airspace, you still wouldn't be moving hair"....... Just an FYI so you're not disappointed later on.