Placement of L & R sides/ Inwall 7.1

[KM108]

I'm in the process of remodeling my house and would like to add in wall speakers to my basement family room. I've been looking at the Klipsch 5800-Ws. The sides and rears would be in wall. Front L&R/ center would be traditional.

My question is with the positioning of the side in-walls. Keep in mind this room isn't ideal to begin with, and I understand the whole situation is a compromise.

I can't quite position the left and right in-walls at the same distance from the font of the room due to a sliding patio door, and the wall opposite the patio door not extending quite far enough to allow even placement.

I can get them to within a foot of being equal distance from the front of the room. The room is 12 feet across, so, if seated directly on the center line of the room, the left and right walls would be 6 feet away.

If I go with the Klipsch 5800-Ws, they have aimable tweeters. If I tweak these slightly to compensate for the uneven spacing am I going to end up with a decent sounding set up? Or am I just wasting time and money.

Thanks in advance for any suggestions/ ideas.

 

[Adam]

Welcome to the forum!

With modern processing, slight offsets in placements of the surround speakers isn't a show-stopper. If you have a relatively recent receiver, it will be able to adjust the delay and speaker level to compensate. The aimable tweeters will help, too.

You mentioned them being about a foot difference relative to the front of the room. What is the relative difference to the listening area?

 

[KM108]

Welcome to the forum!

With modern processing, slight offsets in placements of the surround speakers isn't a show-stopper. If you have a relatively recent receiver, it will be able to adjust the delay and speaker level to compensate. The aimable tweeters will help, too.

You mentioned them being about a foot difference relative to the front of the room. What is the relative difference to the listening area?

I'd have to do a little sketch and do some trigonometry to tell you exactly. They would both be a bit behind the listener (if you were sitting in the ideal location) the left side would be a foot further behind than the right. The difference in actual distance from the listener between the left and right would be less than a foot.

I hope that makes sense...

****EDIT****
Did the math.

Sitting in the ideal position...

The right speaker would be at a 104.04 degree angle off the center line of the room, and 6.185 feet from the listener.

The left speaker would be at a 112.62 degree angle off the center line of the room, and 6.5 feet from the listener.

 

[Adam]

That makes sense.

Hopefully some of the audio gurus will see this thread and respond. I think that I said the right things, but I'd recommend waiting to see what some others have to say.

 

[jostenmeat]

Sounds fine to me too. I have read that redirecting the tweeter is a bad thing due to greatly increased comb filtering, but perhaps that this is just really a matter of choosing one evil vs another. I don't know enough to say. Angles and distances sound fine to me.

 

[KM108]

Couple other quick questions...


What's a typical height off the floor to mount in-wall speakers? I'm guessing at about ear level when seated would be ideal.

What's the best way to build a "cabinet" in a 2x4 wall for a speaker with a mounting depth of 3 3/4" ? A 2x4 is 3 1/2", typically sheet rock on 16" OC studs is 1/2". So that gives you 4" total, and a clearance of 1/4" from the back side of the speaker to the drywall. So the drywall on the back of the studs would have to form one side of the box. I was thinking of building the other 5 sides out of 3/4" MDF, installing the box between the studs, and then using construction adhesive to secure the drywall to the back of the box when I hang the sheet rock. Is this a good way to go about this?