guidence needed

[raceranger]

i am new to the world of speaker building and i want to do it right the first time. i have bought the drivers and have an idea of what i want to do but dont want to get ahead of myself. i bought the peerless buyout 6.5's and the dayton silk dome tweeters. i would like to have 3 way towers for the fronts and an mtm for the center and rears. i have done some research on many aspects of it and am a bit overwhelmed. i have no clue about xovers. ive built many car audio systems but this is alot more complicated. really i just need a place to start and maybe a dummied down version of things i need to know. thanks in advance.

[gowa]

Lou's El Cheapo BuyOut Special (LECBOS)

[billfitzmaurice]

dont want to get ahead of myself..

You already have, since you bought drivers without having plans in hand. Trying to design your own cab and crossover isn't newbie territory. Your best option now is to peruse the projects section and see of there's some there that you can use your drivers in.

[raceranger]

thanks for the input. ive looked at some of the projects on here and ive gotten many ideas and wanted to combine them. i guess the issue is that all of the ideas that i have isnt offered in one single speaker.

[dwigle]

thanks for the input. ive looked at some of the projects on here and ive gotten many ideas and wanted to combine them. i guess the issue is that all of the ideas that i have isnt offered in one single speaker.

Drivers, enclosure and crossovers are a cohesive design. The last thing you want to do is mix and match.

The better approach is to start with your intended use, design the speaker to meet the requirements, buy the components and then build. For some reason noobs frequently buy the drivers first.

Read this: http://sites.google.com/site/undefin...-provendesigns and then post some specifics. What is the intended use, music or HT, room size, what will you drive them with, how much room do you have for the speakers from the side and back walls, what are the room surfaces, hard or soft, what kind of music, how loud?

[raceranger]

well actually i would like something that would work well with both ht and music. the room size is 12.5 by 25. the speakers would be close to the back wall. the floor covering is hard. id like to do this right the first time but also want to build something that i can say is mine. i listen to a wide array of music and its almost always loud. i hope this helps

[buzzy]

Do a search for 'measurements on the peerless' Dirk did a crossover for that combination. Brewski, did the cranberry lamdics, I believe...used a different tweeter; and Lou C has one. These are MTM's. I have cabinets built and am useing the same drivers you are, just haven't had time to finish all of it. If you continue to ask questions nicely; the people here are great, and will be more than happy to help...do what they tell you to. Good luck on the journey to learn.

[fastbike1]

These are pretty much mutually exclusive. Pick one.

This isn't something where you can follow a simple step list and create a design from scratch. If you can't find an existing design that uses most of the "many ideas" you say you have there may be a reason.

This design may meet your needs http://techtalk.parts-express.com/sh...d.php?t=219023. I've built one of Paul's designs and will build others.

id like to do this right the first time but also want to build something that i can say is mine.

[raceranger]

Thank you all for your input. I guess i now have a bit info to draw from. I will look in to these designs for sure. Knowing what I want the end result to be but not knowing the steps to take to get there is a bit frustrating. Thanks for the help thus far and I'm sure I will do much more research and asking many more question here

[fastbike1]

It may not seem like it now, but this will limit your frustration in the long run. Even the cheapest designs take a fair bit of your time to build.

Thanks for the help thus far and I'm sure I will do much more research and asking many more question here

[kmibb]

If you want to build the LECBOS I had a pair of the Vifa buyout tweeters that I will trade you for your Dayton Silky. I have no use for them at the moment.

[johnastockman]

Thank you all for your input. I guess i now have a bit info to draw from. I will look in to these designs for sure. Knowing what I want the end result to be but not knowing the steps to take to get there is a bit frustrating. Thanks for the help thus far and I'm sure I will do much more research and asking many more question here

Unfortunately, not much in the "speaker-building and crossover design for noobs/dummies" category. Ray Alden's "Speaker Building 201" comes close, though, and can get you started. The crossover is the most important part, and without experience in this area, your project will be less-than-pleasant to listen to. DIY speakers can be an extremely satisfying experience, both with the build and the listening part. Go to Paul Carmody's web-site and read all the FAQ's under Resources on the right. You'd be surprised that you can have what you want with many of the designs that can be found through the resources here. There's got to be more than one project that would fit your needs, so another question is: what are your requirements that you're not seeing with any of the designs? Is it a certain "look" or a performance attribute? A particular idea might not work well, especially if a certain idea is arrived at without any experience in the area of speaker design. I was at the same place when I came here looking for answers over 10 years ago, so I don't mean to sound discouraging. Best to read Paul's advice and go with a proven & tested design. At first anyway, then if you want to get into actual designing from scratch, there's tons of resources and help available for that step. No question is too dumb or redundant, so feel free to ask if you don't understand something.

John A.

[raceranger]

again, thank you all. i think im going to build the lebcos. it looks simple enough and i hope that it gives me a a good start in understanding all aspects of speaker building. i hope to design and build many things in the future. i still need to know what i need to design and build my own speakers though.

[johnastockman]

again, thank you all. i think im going to build the lebcos. it looks simple enough and i hope that it gives me a a good start in understanding all aspects of speaker building. i hope to design and build many things in the future. i still need to know what i need to design and build my own speakers though.

For box design using T/S parameters, there's WinISD:

http://www.linearteam.dk/default.aspx?pageid=winisd

Also Unibox:

http://www.pvconsultants.com/audio/boxmodel/unibox.htm

Jeff Bagby's PCD XO design program:

http://audio.claub.net/software/jbabgy/jbagby.html

With PCD, you can use available measurement files, or create your own (much more accurate with the right measurement methods). I think Paul Carmody has the info for getting up & running with a measurement set-up at his site. Good luck and let us know how your project is coming along.

John A.

[raceranger]

Thanks for that info. I do have one question though, does anyone know the depth of the lecbos cabinets or am I just blind and not seeing it?

[Mark65]

I'm pretty sure that Lou left that off on purpose to account for the different size boxes and possible differences in materials. If you build it as he did (18.5 liters, 1/2" baltic birch ply), you would want the depth to about 9.75". If you build it that size with 3/4" mdf, you'd want it 11" deep. For the 22 liter boxes, you'd need 11" or 12.5", respectively.

Mark

[raceranger]

Thank you for the reply

[raceranger]

well ive started the build and i couldnt be happier thus far. the cabinets are looking great and the details are getting dealt with. my only question with this is, the crossover. i understand the drawing but a visual would help. is there anything that i need to know when putting this together? is there any distance issues? i know that these are simple questions but i just want to clarify things. thanks in advance.

[JimHRB]

The "Crossover Building Guide" on the main Parts Express site is a good start to learn about putting a crossover together. Link will appear on the right if you are in "SpeKer Building" or most pages other than Home.

[raceranger]

i have read all of that and i have a general idea on crossovers. i have the crossover laid out and to me it looks to be as shown on the layout. i just wanted something to give me conformation on that. if i can i will try to upload a pic from my phone and post it on here. maybe that would be more help.