Originally Posted by pbz06
Ok, back to the drawing board. Not sure if I have a dud or need to find a better spot (leaning to this), but tried running Audyssey tonight and I'm getting worse results with PB4000. Just rolls off like crazy at 30hz, and on top of that, I have a bigger than usual (massive) null between 30-40hz. This is based off the App measurement graph for pre calibration but it matches with what I'm hearing.
The sub is in the exact same spot as the HSU. I tried moving aound a couple feet in listening spot and didn't notice any "louder" areas.
The SVS is in Standard mode (all ports open) and volume -10 per default recommendation. I also tried extended mode.
Even before running Audyssey, it didn't quite sound right (no tactility), but I chalked it off as not being calibrated.
Any suggestions? I actually have a second one unopened (long story) which I'm thinking of trying out, but it's so darn heavy! I also don't think I have room/place for dual subs. Does it make sense to squeeze both in front between my cabinet and each tower? Or keep one in my corner and one in the front? If it's bad spot there, thinking it's wasteful.
I'm going to try putting my HSU in front at each potential location, ust to see how it responds. Easier moving the HSU around. If both spots are good, I might just keep both SVS and leave them in front, and ditch the corner.
I have been following your posts with interest, but without commenting, in part because you are already getting good advice from Jim. But, there are a couple of things that I would like to add right now, and there may be more later, as you try different things.
First, if I were you, I would consider sliding the sofa, on the right side of the room, a little further back from the front wall. And, I would then consider moving your front speakers a little closer together. The right speaker is partly blocked by your sofa. That wouldn't matter for a subwoofer, but it may for the two mid-range drivers in that speaker. I think you want that speaker to be a little bit more clear of the sofa, and pointed more toward your MLP, rather than quite so straight ahead.
That may improve your overall sound quality immediately (irrespective of the frequencies played by your sub), and it may also free-up the right corner location for one of your PB4000's. I agree with Jim that I would find a way to make dual PB4000's work in your room, now that you actually have them both on hand. One of them would definitely not be going back, if I were you.
Sometimes, we just need to look at our room with fresh eyes, which is one reason that posting pictures can help. We get so used to the way that we currently have things arranged that we may not see how many other options we actually have. If both subs need to be on the front wall, having them both
outboard of your speakers may help, or you could still have the left one inboard if your OCD will allow the asymmetry.
Alternatively, having one PB4000 in the right front corner, and the other one in the left rear corner may work well. Diagonal corners often work. When I say in the corner, they don't have to be pushed all the way in. You may want to move them around a little in the corners to experiment. I would probably do my experiments with the PB4000, although as Jim said, the main thing is to get a sense of where a sub works.
But, whichever sub I experimented with first, I would put furniture sliders under it for easy mobility. And, I would let Audyssey help me to determine what locations are working best. It's a little slow, but surer that way. You can run three mic positions, and calibrate, without ever moving the mic from the MLP. Audyssey won't care.
Once you find a position where Audyssey measures less significant nulls, you can start doing the same exercise for the second sub, with both subs connected if you want to. After getting the best FR you can, there will still be phase adjustments you can make, if necessary. But, that's for later. For right now, I have every confidence that you will be able to make both subs work well in your room.