[T-Town]

Hello everyone! I'm glad I found AVS! I'm currently building 3 fusion 12 tempest. Now I'm looking to add a sub or subs. This will be for a dedicated theater room. My room is 9ft wide 9 ft tall and 18.5ft long. I have an emotive umc200 with RCA out and XLR out for the sub. I have a crown XTI 4002 amp. I really like the feed back from the stomehenge builds. Any suggestions on which sub or subs to use and how many? Please ask questions if more info is needed.

 

[wormraper]

two SI 18's in Marty subs on your XTI 4002.... add a mini dsp and call it a day.

 

[T-Town]

Thanks for the reply. On AVS, I see the Dayton 18Ho, SI HT 18, and UXL 18 used a lot. Could someone give me some comparison info? Once again, this build will be for home theater use. I see the SI is rated at 600 watts. Could I use 4 with the XTI 4002? What to do!

 

[Face2]

two SI 18's in Marty subs on your XTI 4002.... add a mini dsp and call it a day.

A MiniDSP would be redundant as the XTI4002 has DSP software.

 

[Mrkazador]

I would go with the SI HT 18 at $174 shipped, thats a good deal. Specs for the amp say it can do 1600w per channel at 2ohms, it shouldn't be a problem unless you're playing sine waves or heavy bass music at loud volumes.

 

[BrutalBodyShots]

Thanks for the reply. On AVS, I see the Dayton 18Ho, SI HT 18, and UXL 18 used a lot. Could someone give me some comparison info? Once again, this build will be for home theater use. I see the SI is rated at 600 watts. Could I use 4 with the XTI 4002? What to do!

People have been known to throw twice the rated wattage at that driver; 600W is conservatively rated. A pair of HT18's would be a great starting point for that size room and likely give you everything you could ask for.

 

[wormraper]

A MiniDSP would be redundant as the XTI4002 has DSP software.

oh really? I didn't realize that. easy peasy then. no need for the mini

 

[wormraper]

Thanks for the reply. On AVS, I see the Dayton 18Ho, SI HT 18, and UXL 18 used a lot. Could someone give me some comparison info? Once again, this build will be for home theater use. I see the SI is rated at 600 watts. Could I use 4 with the XTI 4002? What to do!

the SI and the Dayton HO 18 are roughly the same in real world applications. both can handle 900-1100 watts of power easy. that 600 watts is VERY conservative unless you're throwing non stop dubstep at the things where thermal temps are gonna get sticky.

the UXL 18 is roughly 1.5 x the ability of the SI 18 and the Dayton 18 but for a over double the price per driver. (and can take about 2000 watts of power just fine). depends on your budget, but I don't see why two mini marty's or full marty's at horizontal locations in the room would not give you some serious oooomph. 2 UXL's in the same application would be better, but it depends on how much money you wanna spend.

 

[muzz]

For folks that haven't seen it, here's Ricci's test of the HT18D2.
Most of the wattage rating is based on mechanical reasoning, and most folks here run them >1000W inside proper cabinets and/or with HPF.

http://www.data-bass.com/data?page=driver&id=46

 

[chalugadp]

The umc200 has 3 bands of peq for bass which is enough for many. I use it along with inuke dsp.

 

[T-Town]

Thanks. I'm really considering 2 stonehenge kits to go behind the AT screen. Any ideas which way the ports should face. Towards each other or facing the opposite side walls?

 

[Mrkazador]

Whatever gives the best frequency response.

 

[BassThatHz]

4 SI-18's would be best.
Not sure if 1 4002 will be enough for 4, it will get louder than 2, but there might be some performance left on the table... which might be a good thing if you have a heavy foot!