AVS Addicted Member
Join Date: Jul 2006
Location: New Hartford, NY
Mentioned: 86 Post(s)
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Easy to do for cheap! THX is 20-120 hz at 115 dBs. Build either a BFM THT or a Cinema F-20 and you will meet the spec at 1 meter outdoors which usually means it will meet the spec indoors at the seats(add boundary gain and subtract distance to seats and end up back at the same number). BTW, both will cost about $250-$300 to build depending on wood and driver. This is minus amp which a $200-$300 pro amp will power many of them if you wish. If you want small than sealed is your best bet but you will need at least two with better and more expensive drivers. Cheaper drivers and you will need more of them, the trade off is you can actually get deeper which is better than THX specs!
Marantz 7702 Atmos
3 Inuke NU4-6000 amps for all speakers.
Speakers- 7 Behringer B215XL's, 4 212xl's for ceiling speakers.
Front subs 12 SI 18ht ported SLLT powered by Inuke 6000
Rear subs 2 XXX ported SLLT powered by IPR2-7500.