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Multi-Way Conventional loudspeakers with crossovers

Built In the wall shallow front ported design?
Built In the wall shallow front ported design?
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Old 14th September 2016, 09:04 AM   #1
Neilkaz is offline Neilkaz
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Default Built In the wall shallow front ported design?

Hi all, my first post on here so hope I don't get shot down in flames. Been dredging the posts for anything similar and can't seem to discover anything like this so hope someone can help.
I'm looking to build a pair of "in wall" speakers, yes they will be fixed into a cavity wall with just the fronts showing, this is all to do with keeping my better half happy. It isn't in a room where I intend to sit and listen to the outstanding quality of sound, it's for left and right of a 5.1 cinema setup, they aren't close to the screen so shielding isn't an issue. Something with clarity and a bit of punch would be a nice outcome.
My design constraints are only depth (which is 180mm) , width and height aren't too much of an issue although something in the ball park of 350mm H x 250mm W would make structural wall changes simpler.
My first thoughts were of a front ported two way design?? Does this seem achievable? Are designs out there already?
Response below 100hz isn't really required as the setup already has two Kef subs.
Any help or pointing in the right direction would be gratefully received.
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Old 14th September 2016, 09:13 PM   #2
AllenB is offline AllenB  Australia
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Built In the wall shallow front ported design?
So you have 15l openings to work with? It might be possible to use multiple small woofers spanning them.
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Old 14th September 2016, 09:34 PM   #3
Neilkaz is offline Neilkaz
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Would that be the best option?, a "Bose" sort of solution In laymans terms.
My initial thought was a simple two way front ported box using , using a 5.25" or 6.5" driver and a good quality compression driver or ribbon . Again this is just ideas flying out my head.
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Old 14th September 2016, 10:16 PM   #4
AllenB is offline AllenB  Australia
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Built In the wall shallow front ported design?
Quote:
Originally Posted by Neilkaz View Post
Would that be the best option?, a "Bose" sort of solution In laymans terms.
This definition depends on the spacing of the woofers and the space covered on the wall. They will behave differently at different frequencies with opportunities for dealing with reflections if the OP can identify the requirements and recreate them.

But if practicality is the priority then maybe power handling is the issue.
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Old 14th September 2016, 10:46 PM   #5
Einric is offline Einric  United States
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Built In the wall shallow front ported design?
I think there may be quite a few 7-8" woofers that would work well in a sealed enclosure since you already have subs to use.
You could maybe start by looking at some 2 way designs that use 7-8" woofer and discard the baffle step compensation circuits from the crossovers.
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Old 14th September 2016, 10:56 PM   #6
Einric is offline Einric  United States
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Built In the wall shallow front ported design?
Check This Out
Mandolin Speaker Kit / Pr

It has a 6.5" woofer in a 2 way configuration but when vented only uses 15L of air space.
Sealed with a little less space would probably work out well for your application.
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