Sean,there are no limit to subs you can have.I have heard of guys having four or even six subs in there Home Theater systems.I don't know if theres really a big advantage to that though?
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Multiple subs can help. I had a system with a sub for the mains , center , surrounds and a dedicated sub for the lfe. Gary Reber at 'WIDESCREEN REVIEW" has been a great advocate of this configuration for years . The first few pages of each issue outlines each of his many theatres the magazine uses for references in reviewing products. I plan on adding 2 more Aerial sw 12 subs this year to my multichannel/ theatre . |
While my HT mains each have two 12's per cabinet, the center channel has two 8's and the rears have two 10's per cabinet, i'm also running two good sized DIY sealed and stuffed subs. Each cabinet houses a 12" driver with a Q of .5 at resonance. The F3 of the subs is appr 23 Hz. The mains are powered by 1200+ wpc rms with the center, rears and each sub being fed by 800+ wpc rms. I also have two RTR subs that are of a VERY unique design called a "negative pressure chamber". Each cabinet is divided into three separate sealed chambers. The two outside chambers each house their own 15" drivers on opposing sides of the box. The center chamber houses a 12" driver that is down-loaded. The three chambers are internally linked by two passive radiators, which do not contribute to the output that one hears at all. Like i said, it's a "weird" design. These are phenomenally fast and tight and about -1 dB at 17 Hz. I think that the factory rating was -1.5 dB at 16 Hz if i recall correctly. These subs were given to me by a friend that owns a speaker repair facility for free : ) I also have a large Sumo Andromeda sub that will probably end up over at my Dad's house. This uses a 15" JBL 2235 driver in a double vented 5 cu ft enclosure. Factory rated for 25 Hz at -1.5 dB's. This one almost broke the bank as it set me back a whopping $40 and is in phenomenally good shape : ) In another system, i'm running eight NHT 1259's ( four per side ) in a low Q sealed and stuffed arrangement with 3000 watts rms + 2.2 db's of dynamic headroom driving just the woofers : ) My bedroom system uses two subs, each housing a down-loaded 10" in sealed and stuffed low Q boxes. These are fed by their own "measly" 100 wpc amp and the monitors have their own 100 wpc amp also. After all, you don't need a lot of power when listening in bed : ) Last but not least, take a look at the folded horn sub that a friend of mine in Ohio built. The one that i'm talking about is the picture on the bottom right with his wife standing next to the partially built cabinet. He's running THREE of these in his system !!! For the record, YES, this man IS completely insane !!! Luckily, Mike has a VERY understanding wife : ) Sean > |
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