I've decided to give a DIY subwoofer a go, but since i've never made one for a home theater before, i need a lot of help.
If anyone has experience in this, any advise is appreciated, so i'll start with some following measurements and setup i have.
I have a richter odin sub(australian made)its a single enclosure ported with 2x10" subs and a active 250wrms power.
Its in my right side corner at the rear.
Room is 26f lenght x 19f width.
Its not a bad sub, but i think its more suited to music and im mostly interested in movies these days, so want a sub/s to fill out the room size and get a nice rumble/shake, so subs more suited to movies would be my choice, even tho im sure there are subs that can do both pretty good.
I also want to position them in a different place, im thinking under my screen
Here is where i want them.
I would make an enclosure under the screen and make it similar looking as now but with the driver being seen front facing, covered with grill or something similar, so making the box look pretty is not important as the enclosure will not be seen.
The biggest size available from each of the sides under that screen is w37" x h29" x d18", that enclosure is the maximum externally and for each driver/sub, so i need to consider the thickness of wood and internal bracing sub etc, if anyone know how much volume i can get out of those measurements with everything considered, that would be goo so i can look for subs for that enclosure.
Going smaller then what i have is of course ok, im just giving the max room i have
Now for a lot of questions, as id like to get a start with people in the know as im very limited in the driver knowledge or even making the right spec'd enclosure, however im ok with putting the box/enclosure together and making it.
Here we go...
1). Do i use 15" or 18" driver/s?
2). Do i go 1 or 2 drivers/subs? or a combination like 2x15" or only 1x18" If everyone thinks one 18" is enough for my room or 2 is way overkill, let me know as i dont know how to calculate the volume i need for this room size.
3). Ive been reading about some subs and seen many like rythmik, dayton, elemental designs, mfw, maelstrom(however this one i was told is out of bussiness?). So with a budget of around $1200-$1500 for 2x subs( not including extra bits like wood,amps etc) i would like to know what brand and make should i be looking/aiming for? Obviously if a very good driver can be had cheaper then even better as the extra money saved would go towards an amp.
Like some of those daytons are very cheap, under $200.
4). If the subs are positioned under the screen, is that a bad idea for screen vibration? will it cause some issue's while watching a movie where it might shake the screen way too often and become unwatchable?
5). Do i go ported or sealed?
Im not too experienced with this but was reading ported will go lower but requires a bigger box, with my dimensions i gave, could i go easily with ported or is sealed the way to go?
The other thing im worried about is the talk of tuning, when they say you have to have a port such and such lenght and width, placement etc i have no idea how to get these facts or how to go about it, so im hoping if ported is the way i end up going i have some help to figure this out.
More things like equilisers etc is also something i worry about, so a box that will need the minimum things to make it sound good out of the box without any extra equipment would be my preferred choice.
6).If i put a plate amp, will it overheat being in an enclosure under my screen enclosure? if so i will go rack type amp.
7). Any online shops that carry the good drivers that will ship overseas? Im in australia
I know this is a lot of questions, but thought if im going to try and attempt this, i may want to get a good start and get some decent input as to what to go with.
I'll add more information if required as needed but for now i think thats it (IMG:style_emoticons/default/smile.gif)
Much appreciate any help.