Originally Posted by alittletank
I have a MFW 15 driver and bash 300 plate amp en route to me and I am considering the F-20 for my first diy project. These questions are holding me up from going and buying the wood though.
1) should the opening of the horn be faced to the room or the wall? how far from the wall? (space issues)
2) is this sub a good fit for use with L,C,R Behringer 2030P?
3) this seems like a REALLY BIG sub for my little room, I am concerned that the F20 will overpower the room (16'Lx13'10"W x9H)
4) is the f20 a good choice to handle all my subwoofer needs for theater use? If you could only have one sub for a theater would this be your choice?
5)How does this sub perform at lower volumes? Does it have to be turned up to be crisp and clean ?
I am a noob to home audio in general, so if my questions seem stupid its only because of my ignorance.
I can only offer my own observations based on the one I built. My room is 18X13X8.5.
1- I have my sub facing into the room. It can be very intense at times if not tuned and balanced into the system. You can face it into a corner or off a wall but the spacing becomes intrusive if you are using a good sized screen. I have a 130" screen and the sub sits on it's side below the screen facing towards the front row. Due to the room size there are some real challenges with acoustic treatments due to the boundry wave on the back wall. A couple of boxes of panels seem to have shaped that up fairly nicely.
2- I am sure many will probably disagree with this statement but I think most speakers can fit well provided that they are located, EQ'd, and crossed properly. I am still trying to get my current setup balanced roperly but it is getting there and I have stopped tweaking due to a coming change of mains. No use trying to figure out some speakers that are on their way out.
3- It's BIG. And it can easily overpower the room if that is what you want. It sounds really good down and balanced with the system. It does not have to be cranked heavily to impress. In fact, I find it to really sound good down in the 85db range. But that is a purely subjective judgment. But in the end that is what matters.
4- As mentioned above, it is very clean and articulate at lower volumes. If you can overlook the space and size issues than it is a good choice. You will have to be the judge as to what you want from a sub. I am perfectly happy with the one I have and am actually going to build a second when I can get the time in my current schedule. I will then have 2 laying on their sides like a stage and firing from the corners into the room.
They do fair with music, great with music that has a heavy beat. It really shines with movies. I have mine EQ'd with a Behringer DSP1124. Seems to be doing the job. Just make sure to invest in a decent mike (it does not have to be expensive to be good) and use Room EQ Wizard to make adjustments to your subs output.
I am no expert, and hopefully one of the others can help with a more refined answer. But these are my findings.