7.1 Mark Audio home theatre build - diyAudio
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Old 9th June 2012, 12:46 AM   #1
pierrre is offline pierrre  United States
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Default 7.1 Mark Audio home theatre build

Here goes. I am in the process of purchasing a home. My wife said I could use the basement for a home theatre. This may take 6 months to a year to complete. The house needs some other renovations as well.

I have been reading online for about the past 6 months with limited audio knowledge before that. Initially I was looking at a HTIB, but soon read I could build much better for cheaper. (I would like to have to turn on as few components as possible)

With out going on too long the receiver I picked is the Anthem MRX 300. On 7.1 it has a 50 watt rms per channel output.

The speakers I want to use are the Mark Audio Alpair 10.2. I think I will use the MarKen10.

Wiring I will probably use cat5 cable or maybe the Dayton audio stuff. I don’t want to spend too much on this. The gauge I guess will be dependent on the length.

Room size is 26x 46. I will have to build an enclosure for the utilities that are on the 46 foot wall. I will not extend out more than 5 feet and the length is at this point undetermined. If anyone knows a free room design program I will design everything there.

The theatre will be at one end of the rectangle and there is a complete brick wall with fireplace at the other end.

I am going to do an 8 foot screen with acoustical fabric. The centre speaker will be behind the screen. I am thinking of building an acoustical wall out of fabric 1 foot or so out from the back wall with foam on the back wall.

I have read the best place for a subwoofer is in the centre of the room. There will be an 8 foot pool table behind the couch approximately in the centre. I was thinking of putting the subwoofer below it.

Subwoofer I am thinking of the Dayton Audio RSS390HF-4 15" Reference HF
Crown XLS 1000 DriveCore Series Power Amplifier. I want a low distortion sub with good output. I was originally thinking 18 inch but I don’t see much that is well reviewed in that size

I am planning on doing acoustical drywall for the ceiling and walls using green glue ect.

I am open to advice from anyone who has experience in this area.

Last edited by pierrre; 9th June 2012 at 03:03 AM. Reason: clarify
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Old 9th June 2012, 01:33 AM   #2
Octavia is offline Octavia  United States
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The Goldwood 18's in H frames have gotten plenty of high praise as have the Rhythmik Servo woofers. Well worth considering, as is having more than just one. (I have 4 of the Goldwoods). And since as you say you have 6 months to a year I'd keep an eye on what Bob Brines is developing with his Alpair 7.3 FAST speakers since those have the highs that seem to get the most praise of all the Mark Audio drivers and should be able to reach real crescendo's if Bob reaches his design goals. I'm betting he will! Also using that cat 5 and doubling or tripling up and separating each wound pair with one to hot and one to ground is going to give you some fantastically revealing and spacious cabling at about as cheap a cost as anyone could hope for. All in all sounds like a great fun project. Enjoy!
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Old 9th June 2012, 01:56 AM   #3
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Quote:
Originally Posted by pierrre View Post

I have read the best place for a subwoofer is in the centre of the room. There will be an 8 foot pool table behind the couch approximately in the centre. I was thinking of putting the subwoofer below it.

Subwoofer I am thinking of the Dayton Audio RSS390HF-4 15" Reference HF
Crown XLS 1000 DriveCore Series Power Amplifier. I want a low distortion sub with good output. I was originally thinking 18 inch but I donít see much that is well reviewed in that size
You would be much better off with multiple smaller subs. They can be placed so that at least some standing wave issues can be canceled.

dave
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Old 9th June 2012, 02:13 AM   #4
Octavia is offline Octavia  United States
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On the other hand for some people a little EXCESS is just about right so why not multiple subs around the room PLUS a Servo Sub crossed over around 50Hz right in that center room location. Unless you just want to go all in and put a Danly Spud Tapped horn right under that sofa! But no that would just be getting carried away wouldn't it. Hehe.
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Old 9th June 2012, 03:00 AM   #5
pierrre is offline pierrre  United States
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Octavia please don't forget waf. I would like to blow her away, but in a good way. She made a comment once that this was a waste of money and wouldn't sound much better than our $150 Wal-Mart 5.1...

Planet10 What size/brand of sub are you thinking of? How many and where to place them. (maybe behind the projection screen!) I would like the net result to equal a good 15-18 inch sub.

I was leaning towards one sub because of Anthems correction software. It is supposed to be better than Auddsey. I wish they would make a 7.4…

If money permits I would like to go the enable route as well. At least for the surrounds
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Old 9th June 2012, 04:18 AM   #6
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Quote:
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I was leaning towards one sub because of Anthems correction software. It is supposed to be better than Auddsey. I wish they would make a 7.4Ö
It can help... but only in one listening spot.

Geddes has a thread here, and there is a good Toole paper (althou the book Sound Reproduction is much more complete, and well worth the tariff)

dave
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Old 9th June 2012, 09:30 AM   #7
pierrre is offline pierrre  United States
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The Rhythmik Servo subwoofer looks like it is far superior to the dayton.
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Old 9th June 2012, 01:47 PM   #8
pierrre is offline pierrre  United States
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I drew a quick mockup of what I think it will look like.

Floorplanner - home theatre
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Old 9th June 2012, 04:58 PM   #9
Vix is offline Vix  Yugoslavia
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Why not build four tapped horn subs (mini version with 6.5" drivers). Should work well, not too expensive, and much more fun!
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Old 9th June 2012, 06:09 PM   #10
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Originally Posted by pierrre View Post
I think I will use the MarKen10.
A good choice IMO, i should be considered biased thou

dave
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