Originally Posted by Lowball_156xxx
Hey Mike- if I were to get two Rythmik subs what would you recommend vs the one 15HP? (considering I can't really go above 1500 currently) Our would you just stick one 15HP?
edit: just read your setup/selection guide regarding dual-subs.
Personally, I would just buy one FV15HP, if that's what you can afford right now. If you read all of Section VIII, you read about the advantages of having dual subwoofers. Most (although certainly not all) people who are serious about their HT systems end-up with dual subwoofers. In a larger room, I think the odds of that are increased. But, the operative words are "end-up", because most people have to upgrade to get to where they discover that they really want to be.
Buying two lesser subs right now has the advantage of more instant gratification, but the upgrade path is harder if they aren't enough--enough from both a low-frequency extension standpoint, and enough with respect to sufficient SPL below 30Hz. To upgrade, you have to sell your existing subs at a loss and reload.
When you buy one more powerful, and more expensive sub, you are starting-off knowing that you will probably upgrade, where with two bought together, you were hoping you wouldn't have to. But, you probably will want to upgrade, if you buy two smaller subs now, so it may not be a good gamble. With the single more powerful sub, the upgrade path is much easier, because you just add to it when you are ready/able to buy the second one.
As you read several times in that section, for the great majority of people looking to buy subwoofers, and especially for those with large spaces, I think that the best advice is to buy the most subwoofer that you can afford, with the long-term plan to add to it when you can. Most of us are going to find low-bass a little bit addictive once we buy a quality subwoofer. And, we are going to want a little more of it. That's where the upgrades pretty inevitably come in.