CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 Distortion is extremely low on an IB as well. I doubt you could hear the difference. I like the sound of my IB better than the many horns I've built. You also get a lot more infrasonics with an IB. The being said, a THT may be better in your application if you could somehow fit it into the space you have to work with. Possibly build a long version and fire it into the opening in your room. You'll have more output than a 2 driver IB and your cost will be less. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 Lay it on the floor like this. Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 7, 2014 Author Share Posted January 7, 2014 Distortion is extremely low on an IB as well. I doubt you could hear the difference. I like the sound of my IB better than the many horns I've built. You also get a lot more infrasonics with an IB. The being said, a THT may be better in your application if you could somehow fit it into the space you have to work with. Possibly build a long version and fire it into the opening in your room. You'll have more output than a 2 driver IB and your cost will be less. So it appears I have more options than I had ever realized when it comes to Subs. THT is new to me. I have a concrete floor so house shaking bass is a little harder to come by. I want to get into the single digit responses for HT while having good musical response and hard hitting mid-bass. From what I read I doubt I would be disappointed in either, but how would a THT save money? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 THT is new to me. I have a concrete floor so house shaking bass is a little harder to come by. I want to get into the single digit responses for HT while having good musical response and hard hitting mid-bass. From what I read I doubt I would be disappointed in either, but how would a THT save money? A THT has one 15" driver (horn loaded) as opposed to the two 18's in the IB so you'll be paying roughly 175 for a single 15 instead of 500 for two 18's. It can also be driven using less wattage. You'd buy a subwoofer plate amp as opposed to a pro-style amp. The THT (long version pictured) will be louder than the IB but won't go as low. It'll go MUCH lower than what you have now though. IB's will easily get into the single digits, THT's not so. With room gain (as close to the corner as you'll have it) the THT will have usable output below 20Hz though I'd imagine. Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 7, 2014 Author Share Posted January 7, 2014 (edited) This is what I had in mind. FI IB318's. This manifold would sit in the location my current sub does and fire through the existing opening in the wall. This would pretty much fill up the space I have available in that corner. Edited November 24, 2014 by WakeJunkie Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 That would shake itself apart in no time. The drivers need to be opposed. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 You can't lay the THT (long version) down on the floor firing into the opening? Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 7, 2014 Author Share Posted January 7, 2014 You can't lay the THT (long version) down on the floor firing into the opening? Possibly, but after reading the specs I really like the idea of getting into single digit responses for HT using the IB method. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 The ONLY thing that keeps me from pushing you in that direction is that I've read of people wanting more output than what duals are capable of. I'd hate for you to spend that much money and not be happy. Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted January 7, 2014 Moderators Share Posted January 7, 2014 This is all new to me so I'm just sitting back watching and learning. When you get it right, we can hook up my room. LOL Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 When you get it right, we can hook up my room Can't move an IB Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 7, 2014 Author Share Posted January 7, 2014 That would shake itself apart in no time. The drivers need to be opposed. If structural stresses are the only concern then I'm not worried. I can build to suit any structural needs. I am an Engineer, overbuilding is standard practice. If there are other concerns then I may need to address them separately. Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted January 7, 2014 Moderators Share Posted January 7, 2014 I didn't say we can hook it up to my room, I said we can hook up my room. Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 7, 2014 Author Share Posted January 7, 2014 I would love to hear from someone with Dual FI318's in a IB setup. If I can hit 100db to below 10Hz I don't think I will be to upset. One thing my current sub has going for it is it is Pro-Audio. 120db is obtainable. It is just is basically useless below 40Hz. I have it turned down to about half. It is hard to imagine a pair of 18's not keeping up. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 That would shake itself apart in no time. The drivers need to be opposed. If structural stresses are the only concern then I'm not worried. I can build to suit any structural needs. I am an Engineer, overbuilding is standard practice. If there are other concerns then I may need to address them separately. No need to overbuild if the drivers are cancelling each other's vibrations out. I can see no good reason to build as pictured. You'll be making twice the work for yourself and setting yourself up for issues in the future. Acoustically, one drivers would be slightly behind the other but it's probably not measurable. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 It is hard to imagine a pair of 18's not keeping up. Any type of open/infinite baffle will not have the output of a box type sub. It will go lower and play cleaner though. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 7, 2014 Share Posted January 7, 2014 The minimum displacement for an IB is 12 liters. 2 of the Ficaraudios will displace about 14 liters. You're just in the game. If you're the type that likes to overengineer, figure out a way to get 4 in there. Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 8, 2014 Author Share Posted January 8, 2014 The minimum displacement for an IB is 12 liters. 2 of the Ficaraudios will displace about 14 liters. You're just in the game. If you're the type that likes to overengineer, figure out a way to get 4 in there. It will take some more modification of the Sub location, but I should be able to get 4 18's in there. I can shift the opening up in the wall so I can put the subs apposing. No chance I am getting 4 now, but hope to build the manifold for 4 and add as I can. I notice you have 4 - 18's running on a 2500W amp. You recommended the 4k amp. Just curious your thoughts on that. Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted January 8, 2014 Author Share Posted January 8, 2014 (edited) How big does the manifold need to be? Edited August 4, 2014 by WakeJunkie Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 8, 2014 Share Posted January 8, 2014 The amp I have is the Behringer EP-2500. It's the same amp that was re-badged as the EP-4000. They used RMS on one label and peak on the other. Marketing crap. If you put the amp in the same room as you, you'll need to swap out the cooling fan (easy). If you put it in the outside room by the drivers you won't have to worry about it. Personally, I like it where I can get to the gain knobs. Quote Link to comment Share on other sites More sharing options...
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