So i pulled the trigger on 2 2omh 15's they just arrived today
very nice looking subs
was just curious if anyone has drawn up a plan for thiers yet and wanted to share or could help me design one,
I was looking for ported size isn't really an issue as long as i can move them through doorways and up stairs
as for an amp i haven't decided what route to go i know that'll have a big effect on the design i wanted to go with a PA setup but it might be a lot of hassle rather than going with 2 plate amps for simplicity
any suggestions would be appreciated
What are you looking for in your sub? How low do you want it to go?
You could tune anywhere from 22hz down to around 15hz. I personally like the 7cuft 18hz tune. But there are quite a few designs that others have come out with. Do you want a round port or a slot port or passive radiators?
I agree that 7 cu ft tuned to 18hz is pretty good but I like 10 cu ft tuned to 15hz. That will give you 12db at 15hz more than the 7 cu ft. Just depends on whether you can fit that size box in the room.
it's mostly movies 90% games 5 % and music 5%
I like the idea of the slot port
i'm looking for nice loud low bass with some punch
i think & cubes at 18 would be suffecient, what amp would you recommend for that
ok awesome i was looking at the bash 500, or the dayton 500
it seems like more people like the bash over the daytons, do i need to worry about HPF protection?
or should i go with the dayton 1000 per box
I used a 16hz Hpass on the 18hz tune. 2nd order. I believe the Bash amps have a hpass but dont recall what it is right now. I like the 1000watt Dayton myself but the price starts getting up there for a pair of them.
You could buy a external power amp such as the Inuke 3000 with DSP or other power amp for less money than a pair of plate amps. But that being said the plate amps are convenient because they are built into the subwoofer and quiet. DO you have a budget in mind for your amps?
You could buy a external power amp such as the Inuke 3000 with DSP or other power amp for less money than a pair of plate amps. But that being said the plate amps are convenient because they are built into the subwoofer and quiet.
My thoughts exactly. It depends on what you want in the end. If your equipment is out in the open and you could deal with a little fan noise (you may hear it on quiet passages in movies) then a PA amp offers the most power for your dollar. But on the flip side of that coin, plate amps are small and have no fan noise but do not offer the same power-to-dollar performance that the PA amps offer.
i initially liked the idea of a PA amp i was looking at the Inuke series i can get the 3000 dsp for 445
but some one was telling me on here that the HPF on those is no good? or they can't be set properly? i don't have any experience with them
and the local music places sell them but usually only for DJ's
has anyone set one up yet with a DIY sub?
Yes, I have.
The HPF's lowest frequency is 20hz. Only a problem if your sub has to play below 20hz.
Mine plays down to 18hz. Set the HPF to 20hz but I put an EQ and LS12 on 20hz too.
The big issue is a ported sub needs a hi-pass filter (sub sonic filter) around the tuning frequency which a receiver can't do. Pro amps with DSP can set a hi-pass filter at 20 hz.
When wanting to dial in a more precise EQ/Lt for your subwoofer an external EQ is significantly better at doing so. Internal EQ's are a starting point but nothing in comparison.
I used to like my 6 color pack of crayons but the 128 pack was nirvana.
You can also tune as low as possible. When you play below tuning frequency, the woofer relies on only it suspension to control the woofer and can easily cause damage.
I have two 12s tuned to 18 hz and have never had a problem.
Yeah I've had ported subs and never really have an issue either. I don't believe my friend is using any sort of high pass on his 12" HO's that are ported. These seem to have a lot of extra suspension travel beyond the xmax. I don't know maybe I'll get a MiniDSP board to do all that though, as the DSP's built into the pro amps seem to be rather limited for subsonics.
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