Mirage Speakers - Page 163

Originally Posted by vjcs20

Does anybody have diagrams to show the sound dispersion pattern of the OMD5 or Omnisat3?

Originally Posted by buzzy_

The speaker, especially the tweeter, sounds best in a certain area - even though with the omnipolar design there's some sound in a wide area. In other words, they are still somewhat directional in terms of where they sound the best. They fire more forward than up (or down, if mounted upside down). Say 20-35 degrees from the base, more or less. And better straight forward than to the sides.

So given that the speaker design is fixed, for any given layout whether and how much you angle them would depend on how high or low they are mounted in that setup and how far away the listening area is, from where they are mounted.

Since hatchet's speakers are mounted high, to get them to fire at the listening area he needed to angle them - otherwise they'd really be aimed over his head. And any side speakers should be aimed toward the seating area.

So if someone has them all on tables, it would depend on the height of the table. A low stand or table would be fine. Anything over 30" or so, I'd think about tilting them forward. And more than that, I'd do it for sure.

Something to try - try listening to it with the speaker vertical, and at ear height, in effect a zero degree angle relative to the base. Then move up (if it's upward firing) or down (if downward firing). You should notice a significant difference in the treble.

This might help (might not!) - I added the bold:

Originally Posted by buzzy_

mctan, the ceiling is an excellent place to mount the omnipolar front and rear speakers. partly because it actually reduces reflected sound (more below) and partly because you can set them up to fire directly at the listening position that way.

though it really helps to figure out the placement before doing anything permanent. and it helps to use a mount that lets you tilt and turn them, if you can. or at least adjust where they are aimed after the fact in some way, in case you want to tweak it.

you don't give a room size but if the TV and the door are to scale it's a small room?

as far as the rear speakers in the corners - don't mount them too close to a side wall if you can avoid it. IMO the reflected sound will make the sound louder, but it's going to be muddier as the timing is off when you hear both direct and reflected sound. it also tends to imbalance the sound some, in some rooms there will be too much treble / high frequencies. less an issue with surrounds, and if due to the room size you have to mount them there be sure to aim them at the listening position.

the center is a little more complicated, some (most?) people will find it distracting if the voices, etc. come from someplace other than the screen. So unless the screen goes all the way to the ceiling, you'd be better off mounting it either under or above the screen (upside down). the mount it comes with is designed for wall mounting, not ceiling mounting.

Manual has some discussion of mounting the center.

the center definitely can be mounted on-wall or even on-ceiling, though, if necessary. This article has a comment from someone at Mirage with the similar but larger OMD-C1:
But again note that the reason is due to a large screen, and it's near the screen so the voices will seem more "anchored" to the screen.

Originally Posted by buzzy_

hatchet, you're absolutely right about needing to angle them given the height. Though I can't be sure but you may have the front speakers angled a little too far. If you figure that they fire at an angle of 20-35 degrees from the base - from the looks of it, the are firing more at where the coffee table is than the sofa. You might try listening from the sofa, then move forward, and see where it sounds best.

Or to put it another way, it looks like the plane of the flat base of the speakers is lined up with the listening area, or that you can even see the bottom of the speaker from where you sit. The plane of the base should actually be aimed over your head when they are mounted upside down.


Another way to check is to take off one of the grilles, from the listening area you should be able to see into the cone at about this angle or a little flatter (this speaker is right side up, so you'll have to imagine it flipped for an upside down setup):

Originally Posted by rutgersftw

Hello all, I need some quick advice on OMD-5 placement. I have a small (10' x 16') living room with a 6' wide fireplace/hearth/mantle on the wall the TV is hung on. It's an old house, and there's nowhere else to put the TV with big windows on the other two walls and an open walkthrough to the dining room. Anyway, the mantle is about 5' off the ground - would the OMD-5 suffer from being placed up there, above ear level? My other option is lower and off to the sides, but then they're only a foot or two away from sidewalls and lots of nasty surfaces.

I've owned Nanosats briefly in the past and liked the dispersion but not the lack of oomph. I'm hoping the OMD-5 can bridge the gap between small and stylish and good fidelity.

Also - if I've got them on the mantle approx 5 feet apart, should I just go phantom center or should I order one more OMD-5? Receiver is a Marantz SR5005.

Thanks!

Originally Posted by rutgersftw

Hello all, I need some quick advice on OMD-5 placement. I have a small (10' x 16') living room with a 6' wide fireplace/hearth/mantle on the wall the TV is hung on. It's an old house, and there's nowhere else to put the TV with big windows on the other two walls and an open walkthrough to the dining room. Anyway, the mantle is about 5' off the ground - would the OMD-5 suffer from being placed up there, above ear level? My other option is lower and off to the sides, but then they're only a foot or two away from sidewalls and lots of nasty surfaces.

I've owned Nanosats briefly in the past and liked the dispersion but not the lack of oomph. I'm hoping the OMD-5 can bridge the gap between small and stylish and good fidelity.

Also - if I've got them on the mantle approx 5 feet apart, should I just go phantom center or should I order one more OMD-5? Receiver is a Marantz SR5005.

Thanks!

Originally Posted by buzzy_

Here's an example. In this case, IIRC the wiring was already in place. Ideally you'd relocate the boxes for the front 3 down some, or just run the wires down the wall a couple feet to anchor it more to the screen (the rears are fine high) ... but this shows the idea of angling the speakers to get them to fire at the listening positions:

Originally Posted by afrogt

Why dont you set up your OMD-5s as mains in your own system since you have them?

That would provide the best answer since you can test them in your home.

Originally Posted by shodulik

Lowest I have seen any OMD5 is 129.99. 90% of the time the Maple is always the cheapest. They prices fluctuate from week to week on Vanns which is frustrating.

Originally Posted by madurodave

Thanks. I am looking at the gloss black. I guess I will just check weekly. No immediate rush, just want to buy before they finally stop making them.

Originally Posted by hanesian


Just realize they could stop selling them at almost anytime, so be aware of that. They have been "discontinued" and "sold out" on several previous occasions, only to reappear later. Who knows when they will really be done?

Originally Posted by Slickman

I have my 2 OMD-5's hooked up to my Z-5500's for right now, they sound alright. I hope there's a big improvement when I hook them up to my Denon AVR-790, I'm receiving it tomorrow. Do you guys think there will be? I have them in stereo mode, the sound actually sounds like it's coming from the air, like between the 2 speakers and up some. It sounds as if I have a center but I don't, it's weird but cool.

Originally Posted by Unobtainium

Anybody have any issues with the OMC-2?
Listening to the Eagles DVD, He'll Freezes Over, the center consistently balks at the baseline from the drums in Hotel California. It sounds like the woofers are bottoming, or doubling. It's bi-amped with 2 ch's of my signature 2.1 from HK. This is the only time I've noticed it. I'm pretty sure the amp has no trouble, as 1 channel is not used, and the other 2 ch's run the tweeters only on my Studio 100's. I rather like the center, it performs well. I can hear a slight difference between it and the paradigm towers, but only occasionally.
I just want to hold out for a few years on buying a single studio 100, but I'm worried the center is outdone by the rest of the system and can't keep up.
I turned the CC level down 2dB in MCACC, but it still does it. I have it crossed at 50hz, set to small. Might have to go to 80hz.
Just wanted to know if anybody else has this powered by 200w and found it's limits.

Originally Posted by WhskyTangoFoxtrt

I'm not familiar with your amplifier, but the Owner's Manual shows that the HK is rated 5x100 watts @ 8 ohms and 5 x 150 watts @ 4 ohms. You indicate 200 watts -- the recommended amplifier power for the OMD-C2 (unclipped) -- but I'm not sure I see that. You are probably passively bi-amping with a shared power supply, which shouldn't be a problem with what you have noted.

The glaring issue, in my opinion, is the hole in your frequency response -- your crossover for the CC is too low. The speaker, which has a frequency response of 60 Hz - 20 kHz (+/- 3dB), may be trying to reproduce frequencies that it is incapable of producing at the level required. For sure, you have a hole in the 50 Hz-60 Hz range where you have set the crossover and the bottom of the OMD-C2s capabilities. You should consider raising the crossover to at least 70 Hz, if not 80.

Hope this helps.

Originally Posted by Unobtainium

The OMC-2 is rated to 38hz, so I thought 50 would be ok. I'll change to 80.
Just not sure how to change only the center in my Elite Vsx-01 txh.
The fronts are awesome at 50hz.
You guys are basing info on the omd-c2, a different animal altogether.
I'm sure going to 80 is likely the only fix.
Cheers