Hi, I'm debating putting a small subwoofer - SVS 3000 micro in a piece of bespoke furniture
There are 3 options:
1/ Have the sub stand on the ground, furniture really only standing 'over' it:
It's a 2-way side firing sub, so two holes with grille cloth on the sides
2/ Have the sub near the ceiling like so, but standing on the furniture
3/ (crazy?) - suspend sub from my concrete block ceiling in a 'tray' and build the furniture around it, without touching
Apologies for terrible drawing but you get the idea perhaps, sub=red, non-touching furniture=green, tray(+ceiling) = black
My key question- will a sub standing in/on the furniture (option 2) will be terrible if the furniture is primarily holding clothes (shoes for outside) and books? Nothing that will really "rattle" like glassware or whatnot.
There are 3 options:
1/ Have the sub stand on the ground, furniture really only standing 'over' it:
It's a 2-way side firing sub, so two holes with grille cloth on the sides
2/ Have the sub near the ceiling like so, but standing on the furniture
3/ (crazy?) - suspend sub from my concrete block ceiling in a 'tray' and build the furniture around it, without touching
Apologies for terrible drawing but you get the idea perhaps, sub=red, non-touching furniture=green, tray(+ceiling) = black
My key question- will a sub standing in/on the furniture (option 2) will be terrible if the furniture is primarily holding clothes (shoes for outside) and books? Nothing that will really "rattle" like glassware or whatnot.
Option 1 looks like the most sensible one, because SW is only "coupled" to furniture through floor, which is rigid, meaning practically no coupling at all.
That said, I would either rotate SW 90 degrees so holes face forward and back, not straight into furniture walls, OR cut 2 holes in furniture walls, so Bass notes expand into free air.
That said, I would either rotate SW 90 degrees so holes face forward and back, not straight into furniture walls, OR cut 2 holes in furniture walls, so Bass notes expand into free air.
If you bought or built a sub that has two drivers, opposing sides of the enclosure, they would cancel out most of the box vibration and you could put it into glasswares cabinet 🙂
Yup, agreed. Although you could say my 'crazy' approach is even less coupled since the ceiling is almost equally rigid and the only coupling is the wires holding up the basket =)
yeah that's definitely the preferred idea:
Okay strictly speaking the left side goes into furniture a bit but eh.
Guess what ...
The SVS Micro 3000 is symmetric. Not 100% sure if they fire in phase or out of phase though.
Spoke to SVS customer service who are very helpful - they say "The 3000 Micro would be one of the best subs we make to put into furniture like that. There is no cabinet resonance you can feel with your hand on top of the subwoofer even at high output levels."
Perhaps I'm on to something.
Or on something.
Will report back.
btw SVS says that the drivers do move out of phase confirming both moving outward at the same time (pullilng vacuum.. basically) and then both moving inward (compressing air inside).
That´s moving in phase.
Both are increasing pressure around cabinet or decreasing it at the same time, creating a spherical wave around it.
Same happening inside cabinet.
I couldn´t care less which geographical direction is cone moving. North, South, whatever, pressure is the parameter to consider.
By his definition, a pulsating sphere , or an explosion, produces no sound, because all points move "out of phase" with the others 😱
That SVS guy does not have much clue.
I saw the title and said “push-push” (a no-brainer, remove most of the vibration actively), i see i have been beaten to the much, but it seems teh op is hobbled by trying to repurpose a commerail sub?
dave
dave
"Just wanted to provide some clarification. I double checked with our director and the 3000 Micro drivers are in phase with one another. They fire inverse of each other in phase."
Not sure if you disagree with him or not 😉
Well, hobbled, I don't have to buy the commercial sub.
My reasoning - building a huge commercial sub into my wall seems like a cool solution to get true infrasonic (10Hz@-3dB) the downsides i'm aware of:
1/ Not a super flat frequency response in the 50+ Hz range - but this sub is so powerful I can just DSP my way out of that one (by dropping everything else)
2/I can't have multiple of them spread across the house, I have to stick with one, in a predetermined place and one sub tends to have some nulls.
Hence me thinking that at least for 'subwoofer mid+high' (30-200hz) I can use a few strategically scattered small subs, where the SVS3000micro seems to be the most bang-per-cubic-foot hence me debating stuffing them 'everywhere'.
Is this a fool's errand?
House is being built from scratch, including the place the sub goes in, so nothing to experiment on =)
Ask your architect why you can't have the basement you need!
Then get out your ruler and graph paper and figure out where in the room woofers can and CANNOT go.
Then get out your ruler and graph paper and figure out where in the room woofers can and CANNOT go.
I hope nobody is listening in their basement!
The basement is for the suspended floor under which to hide subs (in their correct position). OP said in his other thread on the same topic that he can't have a sloped ceiling...
The basement is for the suspended floor under which to hide subs (in their correct position). OP said in his other thread on the same topic that he can't have a sloped ceiling...