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Discussion Starter · #1 ·
I currently have two Outlaw LFM-1 Pluses. They sound good but are boomy as heck...they just make a rumbling sound. I'd like to achieve more of tight accurate sound. I'm not looking for SPLs. I do not listen to movies or music loud at all. Most my AVR ever sees is -15 or -10 at most.

My room design is poor as hell. Basically the room opens up into the WHOLE 2000sqf house. That pretty much describes that.

I'd like to build two subs. I'm pretty sure I'd like to power them with an inuke 6000dsp facilitated by the sell of the Outlaw Subs.

Which design would suit me better? Sealed or ported. I'm looking at 18inch drivers.
Flat packs would be fine or I could get a cabinet guy to build it for me. Definitely not going to the guy whom I had make the Dynamics. He was horrible. I don't have the spare time to build these from scratch. I do have clamps left over from gluing the Dynamics up though. People were not kidding when they say that you never have enough clamps!

Oh and btw the Dyanmics are 10/10. I was overwhelmed at how good they sound!
 

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A much better bang for the buck would be 2 SI18d2s and two Stonehenge flatpacks from diysg.

Or a little cheaper would be a 3000dsp with si18d4s instead.

Pay attention to the choice of voice coils with the SIs.

In that large open space two sealed subs will be working harder than ported. Unless you need the smaller boxes for some reason.

Those ultimax combos aren't bad if you're really set on buying flatpacks and need to stay sealed.
 

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The Outlaw LFM-1 Plus, while certainly not on the large side is a fairly highly regarded sub. 2 of them should provide pretty substantial output.

As you say "They sound good but are boomy as heck...they just make a rumbling sound" I would guess they are in a bad location/incorrectly setup.

Have you done the sub crawl to determine the best locations?
What do you use the subs for? (music/movies/gaming/etc.) And what type(s)?
What are you driving them with (AVR/receiver)?
Have you run any measurements at your listening position(s)?

The kit you linked to would make for a very capable sub as well, but if the problem is in positioning/setup then the money spent there would be wasted.
 

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Discussion Starter · #6 ·
A much better bang for the buck would be 2 SI18d2s and two Stonehenge flatpacks from diysg.

Or a little cheaper would be a 3000dsp with si18d4s instead.

Pay attention to the choice of voice coils with the SIs.

In that large open space two sealed subs will be working harder than ported. Unless you need the smaller boxes for some reason.

Those ultimax combos aren't bad if you're really set on buying flatpacks and need to stay sealed.
I'm just looking for some tight low reaching bass. I don't know what you mean about the voice coils. What's the difference?
 

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Subwoofer sound is mostly a matter of room modes, and not the device itself. True, some subs are just bad - mistuned, or extremely high inductance, or not enough output. But IIRC yours are designed by Hsu so I'd expect them to be pretty good.

Instead of buying new subs see if you can place yours better. Also, a measurement mike and a DSP (e.g. miniDSP 2x4) will help you improve the bass in your room more than new subs will.
 

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Sorry, I'm locked in DIY land and wasn't familiar with the subs you were trying to replace. These other guys may be offering better advice. If those are capable subs in bad locations and improperly integrated then the new subs would likely suffer from the same problems. Did the subs you have work good in the corner? If you can't setup delay for each sub independently you might benefit by keeping them either together or equal distance from the main listening position so the delays would be equal.

The voice coils are either dual 4ohm or dual 2ohm on the SI18s. They allow different ohm loads on the amp. So depending on which amp you would get, one or the other would be a better fit.

D4= 2 or 8 ohms
D2= 1 or 4 ohms
 

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Oh yeah! That is one of the most capable subs available. The 6000dsp can't be bridged though so you might want a different amp. There are a couple great 24 builds going on right now for info. PassingInterest's thread might make you feel incompetent though. :)

The box for that needs to be in the neighborhood of 15 cubic feet if that matters.

The HST18 from the same company would be good also. Two HST18s sealed or ported with the 6000dsp would be a very serious system.
 
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