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Opinions on DIY bookshelf 5.1 system


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#1 of 11 julezberg

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Posted November 28 2010 - 11:41 AM

I'm thinking about building my own 5.1 system (mainly to save money) and have been researching a little bit as i am a newb.  My budget is around $500.  My room is 12x15x8 so im thinking bookshelf speakers will be sufficient.  i found this link somewhere on this site and was wondering what you guys think of any of these projects  http://www.speakerbu...les/default.htm.  Any other suggestions are greatly appreciated as i am new to this!


thanks



#2 of 11 Robert_J

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Posted November 29 2010 - 03:04 AM

I'm running Dayton II's and building Dayton III's.  The DII's will get loud for their size.  I went with a slightly smaller enclosure and sealed them.  I had no need for the lower bass response since I was running a sub.


The Parts Express Project Showcase is another site with great plans.  Wayne J has a few additional projects there.  The DHT speakers use the smaller 5.25" driver an an aluminum tweeter.  They sound very good as well.  I have the parts for 7 of the MTM versions.  Those plans aren't posted but I have a copy.


What about your sub?


#3 of 11 julezberg

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Posted November 29 2010 - 07:07 AM

yea i was actually checking out the parts express website last night and was looking at some sub kits.  I dont have a big budget right now so i was thinking of this onehttp://www.parts-exp...tnumber=300-770.  Do you think this would be adequate?  Is it worth the price or would it be cheaper to purchase everything separate (not as a kit)?  I just have no idea what to get and the thought of building a crossover scares the ish out of me!


Right now i have this 5.1 systemhttp://www.amazon.co...91060968&sr=1-1.  I mean, anything would be better than this system right??  Im pretty unsatisfied with it.



#4 of 11 Robert_J

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Posted November 29 2010 - 10:01 AM

Building a passive crossover for a speaker is simple.  If you can solder, you can build a crossover.  If you can't solder, you can learn to in about 5 minutes.  If you were talking about a crossover for a sub, you don't have to build that.  You use the crossover built into the receiver.


Yes, that is a good sub for the price but if you are looking at any of Wayne J.'s designs then that sub will be the weak point.  With my DII's and DIII center, I run dual 15's - http://www.parts-exp...tnumber=293-642 , powered by http://www.parts-exp...tnumber=248-748 and use this http://www.parts-exp...tnumber=248-656 as a parametric EQ.



#5 of 11 julezberg

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Posted November 29 2010 - 10:29 AM

First of all, thanks for taking the time to help me out Robert!


Now since my budget is limited, what speakers do you think would match well with the sub i selected?


I was thinking these http://www.parts-exp...cfm?project=Dht but like you said, they are by wayne j so they may not match well with that sub.



#6 of 11 Robert_J

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Posted November 29 2010 - 11:27 PM

I have heard those.  A few years ago when I was building my current speakers, a neighbor came over to see what the sawing was all about.  A few months later he invited me over to hear what he had built.  These little speakers sound great.  That's why I'm going with the MTM version.


The sub kit you picked out will be fine.  But since you are building speaker cabinets, why not build a sub cabinet as well?  You can upgrade the components of your sub to the same quality as the speakers.  Get the BASH 300 - http://www.parts-exp...tnumber=300-750 and a 15" Dayton HF - http://www.parts-exp...tnumber=295-468 .  Put it in a 4 cubic foot, sealed box and you are ready to rock.  If the 15" is too big, the 12" Dayton HF will work as well.  Don't get the HO models as they are designed more for car audio use.



#7 of 11 julezberg

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Posted November 30 2010 - 10:20 AM

I may do that!  The price is reasonable too!  Thanks for the info.


And you think sealed box over ported?



#8 of 11 Robert_J

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Posted November 30 2010 - 01:31 PM

Sealed is easier to build and smaller.  Ported will be larger, more efficient and more difficult to build.  According to Unibox, this design will work - http://www.danmarx.o...n/tcsounds.html .  Just use the 15" Dayton HF and the BASH 300amp.  If you have the urge to up your budget then the same design using this http://www.soundspli...nformation.html and a Dayton 1,000w amp will really bring the house down.


Remember that design is for 1" MDF.  If you go with 3/4", you need to make adjustments.



#9 of 11 julezberg

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Posted November 30 2010 - 07:11 PM

Thats ported tho right?  Do you know of any designs for a sealed box?  Or should i just try that one?  sorry to be a pest



#10 of 11 Robert_J

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Posted November 30 2010 - 10:41 PM

Don't cut the holes for the port.  The Dayton 15" HF likes a large, sealed box.



#11 of 11 julezberg

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Posted December 01 2010 - 05:12 AM

I'll let you know how it goes.






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