MTM on its side

[Undefinition]

Since this site seems to have some of the most unusual speaker designs and combinations, this seems like an appropriate place to ask about this

I am building a pair of speakers for a friend of mine, but since he's an artist, I asked him to come up with a cabinet shape. It was intended to be an MTMW with open-back mids using discontinued Peerless drivers. (since the drivers all have very flat FR, it will be an Andy G 3-way linked-series XO).

Anyway, this is what he came up with. When I saw the MTM on its side I worried about horizontal dispersion. Is this an issue? By how much? If horizontal dispersion is an issue, could I alleviate it by moving the mids closer together, or angling them to the side like wings?

Thanks,
Paul Carmody

[tpsorin]

With that design, if you move your head to right or left 30cm, the sound will change significantly.

[Andy G]

Originally posted by Undefinition
Since this site seems to have some of the most unusual speaker designs and combinations, this seems like an appropriate place to ask about this

I am building a pair of speakers for a friend of mine, but since he's an artist, I asked him to come up with a cabinet shape. It was intended to be an MTMW with open-back mids using discontinued Peerless drivers. (since the drivers all have very flat FR, it will be an Andy G 3-way linked-series XO).

Anyway, this is what he came up with. When I saw the MTM on its side I worried about horizontal dispersion. Is this an issue? By how much? If horizontal dispersion is an issue, could I alleviate it by moving the mids closer together, or angling them to the side like wings?

Thanks,
Paul Carmody

I'd stick to the upright MTM, Paul.
There are still lots of ways you can do an interesting cabinet.
eg Rockette, Deloreans... I'm sure you could come up with something.

Which bass driver have you found that you can use the 3-way linked with ??

[Andy G]

get 4 more of the Peerless 5", would need a reasonably high spl bass unit, or maybe two of them?

may need to look at the sensitivity of tweeter relative to the mids, as well.

a la Legacy Whisper??

[pos]

Westlake does not seem to think it is a bad idea :
http://www.westlakeaudio.com/Speaker...es/bbsm10.html

[djarchow]

Originally posted by pos
Westlake does not seem to think it is a bad idea :
http://www.westlakeaudio.com/Speaker...es/bbsm10.html

I am not sure if you are talking about the two cabinet layout or the MTM. The Westlake speaker is an WMTW, not an MTM which greatly reduces the off axis problems of an MTM on it's side.

Regards,

Dennis

[Undefinition]

http://www.westlakeaudio.com/Speaker...ies/bbsm5.html
http://www.westlakeaudio.com/Speaker...ies/bbsm4.html
Says "reference monitor," but why put the woofers that way? They would use these monitors in their own studios?

[CLS]

Those are called "control monitor" which are normally put on top of the mixing console. To align the acoustic center of the speakers and ears in height, these monitors tend to be short.

And, from the point of view of a mixing engineer in the monitor room, large 'sweet sopt' is not necessary.

[Undefinition]

Originally posted by CLS
Those are called "control monitor" which are normally put on top of the mixing console. To align the acoustic center of the speakers and ears in height, these monitors tend to be short.

And, from the point of view of a mixing engineer in the monitor room, large 'sweet sopt' is not necessary.

Yeah, that makes sense for these:

and these:


but I guess one thing I thought was pretty true about control rooms was that there's usually more than one person listening than just the mix engineer; eg: performers, producer, A&R, people with money, etc. So I thought studios tried to have large sweet spots.

[Andy G]

Originally posted by Undefinition

Yeah, that makes sense for these:

and these:


but I guess one thing I thought was pretty true about control rooms was that there's usually more than one person listening than just the mix engineer; eg: performers, producer, A&R, people with money, etc. So I thought studios tried to have large sweet spots.

A good studio generally has a few pairs of speaker set-ups of different styles.

the ones we are looking at are almost always use in what I suppose you could call "near field", with the engineer sitting dead centre on the desk, and pretty close to the speakers. The sweet spot does not need to be big at all, very "set position" listening.

soffit mounts , I've seen a few in studios, but not often have I seen a studio set-up that could be called a "normal lounge room" set-up.

yet that is the way we generally listen

odd.. when you think about it !!!