Finally reinstalled my new sub

[Rkrajnov 10+ year member]

Blew the last one after about a year. Just got the replacement. Fi Q 12" with a audioque 1200d amp in a sealed box (this was my first build so I just made a sealed box since it was easier).

This time I made sure to set the gain with a DMM. I figured since its a dual 2 coil (hooked to 1 ohm) and 1200 RMS of power being fed to it, I should aim for about 34.6 v, correct? It's sounding good with the gain set there, but is there anything else I can do to drive the most potential out of it? The LPF is set to around 100 hz and the subsonic is about 30 hz. I am using no bass boost as I heard this is bad, but what do you guys think? safe to use a little or should I just avoid it?

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[brodeisel 10+ year member]

Avoid the bass boost.

 

[disturbed471985 5,000+ posts]

^^ yep. If set with a dmm and you are not happy with the output then a new box would be the answer.

 

[keep_hope_alive Premium Member]

Before you try a new box, Change how the box is facing. Orientation has a larger effect on what you hear,

 

[Rkrajnov 10+ year member]

Before you try a new box, Change how the box is facing. Orientation has a larger effect on what you hear,

how would you recommend it facing. it's just facing backwards in the trunk of my car right now.

 

[mylows10 5,000+ posts]

try facing it forward,port on left side too

 

[Mitch86 5,000+ posts]

Someone correct me if I'm wrong, but if I remember correctly you don't have to use a subsonic filter with a sealed enclosure.

 

[BrownVanMan 10+ year member]

Someone correct me if I'm wrong, but if I remember correctly you don't have to use a subsonic filter with a sealed enclosure.

usually yes you do not use subsonic filted with a sealed enclosure

 

[Mitch86 5,000+ posts]

usually yes you do not use subsonic filted with a sealed enclosure

I was thinking a subsonic filter is generally used to filter frequencies below box tuning. Its been so long since I have ran a sealed set up I couldn't say for certain though.

OP, try turning off the subsonic filter, or maybe lowering it to around 20-25. You may pick up some lows that you're missing with it on.