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post #1 of 12 Old 07-19-2014, 08:07 PM - Thread Starter
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Basic Question About SEOS Speakers

I asked this in the "rallying" thread, but I thought it might be worth its own thread.

Can someone explain to me what the advantages and disadvantages of using an MTM (or 1099) vs a Fusion or Karma 15 for a dedicated home theater? All the speakers will be oriented in the same direction, so I don't need a horizontal center.

I understand vertical pattern control is an issue, but I'm not clear if the MTM or the Fusion has the advantage there.

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post #2 of 12 Old 07-19-2014, 08:40 PM
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with mtm the forward lobe is a little narrower than tm, so it becomes a little more important to be pretty much on axis (vertically). in a tm the beam can be tilted up a bit too giving a little bit better sound when you "stand up". not huge differences though, ideally outside (or at least at the boundaries) of the horn anyway.


I don't know what to make of the latest karma 15 that uses a guitar speaker with no overhang (no xmax) if I read the sheet right. seems like it could work well if the bass is really kept out it, so the cone isn't moving very much.

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post #3 of 12 Old 07-19-2014, 08:44 PM - Thread Starter
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So in a dedicated space with a second row on a riser, will the forward lobe tend to be broad enough to cover both rows, or is that a consideration?
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post #4 of 12 Old 07-19-2014, 09:52 PM
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Quote:
Originally Posted by J_P_A View Post
So in a dedicated space with a second row on a riser, will the forward lobe tend to be broad enough to cover both rows, or is that a consideration?
If the speaker is up a few degrees above the first rows head and a few degrees below the second rows head; another words mid-section of the two, I don't think it will be a huge deal.
You'd have to be a Obessesive-Compulsive-Sound-Quality-nut to be overly concerned with it in actual use I'd think.
It's not like you won't be able to hear what the actor or singer is saying.
I don't think it would be that BAD! (At least I sure hope not!!! Is it??? )

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post #5 of 12 Old 07-19-2014, 10:09 PM
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Quote:
Originally Posted by J_P_A View Post
So in a dedicated space with a second row on a riser, will the forward lobe tend to be broad enough to cover both rows, or is that a consideration?
I listened today to the jtrs 228,and the 1099. both had similar vertical coverage. I listened sitting and stood up several times. couldn't hear a difference between two on axis
I was mostly on second riser.
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post #6 of 12 Old 07-19-2014, 10:31 PM
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at 12 feet back, the +/- 10 degree vertical window is +/- 2.11 feet, so about 4.25 feet total. if folks heads are generally in that window (and the speaker has a straight forward firing lobe) all should be fine.

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post #7 of 12 Old 07-19-2014, 10:37 PM
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at 12 feet back, the +/- 10 degree vertical window is +/- 2.11 feet, so about 4.25 feet total. if folks heads are generally in that window (and the speaker has a straight forward firing lobe) all should be fine.
yup I moved a total of 3-4' up and down.
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post #8 of 12 Old 07-20-2014, 05:45 AM - Thread Starter
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So is there any advantage to vertical MTMs vs Fusion 15s?

Dude, are you made of leprechauns? Cause that was awesome!

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post #9 of 12 Old 07-20-2014, 06:00 AM
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Yes, keeps sound off the floor and ceiling.
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post #10 of 12 Old 07-20-2014, 06:28 AM
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Quote:
Originally Posted by chalugadp View Post
I listened today to the jtrs 228,and the 1099. both had similar vertical coverage. I listened sitting and stood up several times. couldn't hear a difference between two on axis
I was mostly on second riser.
Hey Chal, where will you (and the other attendees) be posting your impressions of the speakers being auditioned at JBrown's GTG? I want to make sure I subscribe to that thread.

Thanks
Rick
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post #11 of 12 Old 07-20-2014, 06:31 AM
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Originally Posted by atabea View Post
Hey Chal, where will you (and the other attendees) be posting your impressions of the speakers being auditioned at JBrown's GTG? I want to make sure I subscribe to that thread.

Thanks
Rick
the Vancouver summertime gtg results. let me know what you think.
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post #12 of 12 Old 07-20-2014, 06:34 AM
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the Vancouver summertime gtg results. let me know what you think.
Thanks, Chal, I will look for that thread.
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