make another system.
2 channels clean analogue no in-wall speakers.
Straight from the disc with very little processing ( amplification & EQ )
and clean to the ear.
Anything else is against "Occam's Razor" or K.I.S.S.
It is not just for power you should parallel, if you wire in series, you are essentially putting a filter in series, potentially causing phase variations between the coils. This will likely be no problem at all on lower volumes, but might be a big issue when playing loud... Not that I'd ever provide any "wisdom" to anyone.
That makes sense to me. Any downsides to wiring in parallel? The way I understand it, best to have two wires going from the amp to the voice coils as opposed to having the wire go to say (+) of one and then (+) of the other? I'm not sure I'm convinced that a short length 12" of wire will create any problems so I might do it anyway, but maybe someone here has seen some convincing data.
Redid the line array grill cloth and framed the sub grill covers. Just need to get the magnets installed so they’ll hang from the fronts.
Trying to decide what to do about the cabinetry between the subs for all the other stuff now. Oh, and I mounted the iNuke on the other side of the wall since the fan is so noisy. XLR cables are routed between the wall plates for the other speakers and the four gang outlet.
Trying to decide what to do about the cabinetry between the subs for all the other stuff now. Oh, and I mounted the iNuke on the other side of the wall since the fan is so noisy. XLR cables are routed between the wall plates for the other speakers and the four gang outlet.
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No. That was the original plan as I thought the concrete foundation started on the other side of the wall. But instead, they built the wall on top of the foundation. (Long story as to why the foundation is so high on the other side of the wall.) So... they stick out a bit. Exactly one 2x4 (3.5") farther in. It messes up my line array a bit on the bottom and is visually a bit obnoxious. But the grill covers help. And I think they look more integrated once I get the cabinets done in between them as well.
EDIT: The cabinets are 10" deep and stick into the wall about 1.5". They are 23" square though so they are quite big. I don't think I'll have any problem with clean LFE at movie levels! =) I hope the room doesn't vibrate too badly though.
EDIT: The cabinets are 10" deep and stick into the wall about 1.5". They are 23" square though so they are quite big. I don't think I'll have any problem with clean LFE at movie levels! =) I hope the room doesn't vibrate too badly though.
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Yup... one of the compromises I had to make. In retrospect, I may have done a single sub in the center or placed the stereo ones closer together. But those are compromises as well. So we'll see how it goes. There were actually many other layout options but this is where I ended up after weighing all the pros and cons.
Yep, subs could easily change position, and might even work out better than using stereo subs in symmetry inside the room.
Usually, it's best to use subs in mono, not stereo because of phase cancelations, and you could place one a little offset the centre of the screen, and the other on one of the side walls. That should help with room nodes and play better in the low end.
Usually, it's best to use subs in mono, not stereo because of phase cancelations, and you could place one a little offset the centre of the screen, and the other on one of the side walls. That should help with room nodes and play better in the low end.
Count the number of drivers beside the subs where the reflection would be about equal distance to the ear. Next, see how many drivers won't have that reflection because they are placed above sub level. They will average out the reflections of the compromised drivers.
This isn't ideal, that's true, but we have many drivers that make up for those lower placed ones (the ones that will reflect off of the subs).
A bit of absorption on the side of the subs could help too, not a pretty solution, I admit.
At first I though the subs were going "in wall". Until I saw that concrete ridge. The same notion Perceval had jumped trough my mind, though it might not be as bad as it looks, due to the averaging nature of the arrays. It is worse than ideal.
Every detail counts to get good results, as said, any plane or ridge parallel to the array is a potential problem. Best to take it seriously.
P.S.
Now you know why the pictures of my arrays in their current setup have those black boxes beside them. Even though they are just benches to put your feet on, I used them to reserve the spot for future subs. They are in my measurements already. I just need to replace them for the real thing. It does help that my girlfriend could get used to that look so she wouldn't complain about me adding subs.
Thinking things trough has it's advantages.
This isn't ideal, that's true, but we have many drivers that make up for those lower placed ones (the ones that will reflect off of the subs).
A bit of absorption on the side of the subs could help too, not a pretty solution, I admit.
At first I though the subs were going "in wall". Until I saw that concrete ridge. The same notion Perceval had jumped trough my mind, though it might not be as bad as it looks, due to the averaging nature of the arrays. It is worse than ideal.
Every detail counts to get good results, as said, any plane or ridge parallel to the array is a potential problem. Best to take it seriously.
P.S.
Now you know why the pictures of my arrays in their current setup have those black boxes beside them. Even though they are just benches to put your feet on, I used them to reserve the spot for future subs. They are in my measurements already. I just need to replace them for the real thing. It does help that my girlfriend could get used to that look so she wouldn't complain about me adding subs.
Thinking things trough has it's advantages.
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The 12" length of wire is not a problem, the voice coil in series with another voice coil might be. It really will cause some phase variation between the two voice coils, and this can potentially cause issues. How serious the outcome will be is dependent on how hard you are going to run the sub(s).
We can agree to disagree on the bass in mono/stereo part. Bass is much better in stereo. But it depends a lot on the recording.
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There was a thread discussing series vs parallel connections in the same enclosure in the Subwoofer section. It should apply to dual vc woofers also, but mostly when pushed hard. Gave up trying to find it.
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It's easy enough to run them in parallel so that's what I'll do. Doesn't seem to be any downsides. And I won't be pushing these very hard. Either in range or volume. The arrays go pretty deep as it is. So these will probably cross around 80-100 Hz or so. I still need to figure out bass management through the XMC-1 but it doesn't seem that difficult. I may give the Dirac stuff another try as well (probably just for movies). But I want to wait until all the room treatments and everything else is done first.
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Up and running! Man, movies are more fun with subs. The infinite baffle concept works well too from what I can tell in that they’re not boomy at all. Still need to re run the PEQ as well as the DRC designer stuff. But I’ll wait until our canvas photos with roxul are up. Sounds pretty good for now.
And yes, those are two Mac pros acting as a coffee table!
And yes, those are two Mac pros acting as a coffee table!
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Looks very nice... if I tilt my head to the side!
I'll bet movies sound great! I'm sure the music is pretty good too!
Enjoy!
Now comes the tweaking part... just as hard as building the whole thing... if not harder!
PS. Lucky you with those coffee tables. They still sell those MacPros between $800 for a G5 to $3,000 for Xeon over here!
I'll bet movies sound great! I'm sure the music is pretty good too!
Enjoy!
Now comes the tweaking part... just as hard as building the whole thing... if not harder!
PS. Lucky you with those coffee tables. They still sell those MacPros between $800 for a G5 to $3,000 for Xeon over here!
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