Tim, I think you should find a job as a used car salesman, excuse me salesperson.
Actually summed bass below 100 Hz is an advantage in most acoustic situations you would have in the typical home.
Jon, It would be easier with identical subs. But if you have to use the large sub midway between your speakers and the small ones flanking. I would mono the lot.
Geoffkait you did not answer the question, how big? Wikipedia has the equation. I'll give you a hint. It is highly unlikely that anyone here has a room large enough to fit a Tube Trap that large.
Back to Tim, The term "room control" is a misnomer. You are not controlling the room. You are controlling the speaker to correct response abnormalities of the speaker/room system, to make both sides have exactly the same response and correct timing so that the sound from each driver hits the listening position at exactly the same time. With a good unit the listening position can be any where in the room! Where ever you plant the microphone. You still have to minimize acoustic aberrations in the room or you will waste a lot of power and even bottom out a sub driver. Any sub woofer system is going to sound better because you can correct and improve the sub inherent frequency response which is hardly ever flat. Every uncorrected smaller (12" and less) sub that I have ever measured has a response curve that falls off as you go down.
This can be correct and I even give them a response that rises to +3 db at 20 Hz then at 28 Hz falls off like a rock 10th order! Tim, if you want your bass to really perk up you want to make sure each one is exactly the same distance from your listening position. You can put them anywhere in the room as long as the distance is the same. They should preferably all be up against a wall. It also helps if your speakers are also that same distance assuming everything is phase correct.
Actually summed bass below 100 Hz is an advantage in most acoustic situations you would have in the typical home.
Jon, It would be easier with identical subs. But if you have to use the large sub midway between your speakers and the small ones flanking. I would mono the lot.
Geoffkait you did not answer the question, how big? Wikipedia has the equation. I'll give you a hint. It is highly unlikely that anyone here has a room large enough to fit a Tube Trap that large.
Back to Tim, The term "room control" is a misnomer. You are not controlling the room. You are controlling the speaker to correct response abnormalities of the speaker/room system, to make both sides have exactly the same response and correct timing so that the sound from each driver hits the listening position at exactly the same time. With a good unit the listening position can be any where in the room! Where ever you plant the microphone. You still have to minimize acoustic aberrations in the room or you will waste a lot of power and even bottom out a sub driver. Any sub woofer system is going to sound better because you can correct and improve the sub inherent frequency response which is hardly ever flat. Every uncorrected smaller (12" and less) sub that I have ever measured has a response curve that falls off as you go down.
This can be correct and I even give them a response that rises to +3 db at 20 Hz then at 28 Hz falls off like a rock 10th order! Tim, if you want your bass to really perk up you want to make sure each one is exactly the same distance from your listening position. You can put them anywhere in the room as long as the distance is the same. They should preferably all be up against a wall. It also helps if your speakers are also that same distance assuming everything is phase correct.