Os mtm

[DarkTyranitar]

I know that I said in a previous post that I wanted to build something with a peerless driver but I changed my mind and I'm going to buy the os mtm kit from diysoundgroup. My question is what else do I need to buy? the kit comes with almost everything that's needed but I know that there is a few other things missing. what tools would I need? what extra material would be recommended? I know that a lot of you solder you crossovers but I don't want to spend that much money, would a hot glue gun be a nice replacement? how about acoustic foam vs some foam from walmart? I know I'm asking a lot of questions, but I'm really fiending for these speakers and I want to build them asap because I'm holding out on my shows so that way I can experience them with my new speakers. I won't be able to reply to anybody till tonight because I have to work, but as soon as I get home I'll start responding.

[rtdbutcher]

The OS come with everything you need except speaker terminals and a board to build your XO. Your can order the terminals when you order the kit for about $6. Then you can use a piece of 1/4 ply for the XO board. A soldering iron and solder is about $20 at Radio Shak. As far as assembly they are very easy to put together you can get away without clamping. All you need is some painters tape to hold while the glue dries. you will also need some wire to connect XO to speakers and terminals. Don't go too heavy on the wire it gets hard to workd with. 16ga. to 18 ga. will do.

[heyduard]

I just got the regular OS TM kit. You're going to need some length of hook up wire, 18 gauge or so. if you really don't want to solder, you can try crimped connectors, but a good solder joint guarantees a solid electrical connection. Another option is getting a few Euro style barrier strips, which uses screws to make the electrical connection. You trim what you need.

I don't have a collection of scrap wood, so I ordered blank crossover "circuit" boards from PE to put the crossover components on. From the pics, Madisound carries actual pcb's (printed circuit boards) with copper. the PE boards seem to be aluminized. that's okay, as they are half the price. we'll see if I really saved any money.

+1 on the binding posts from diysoundgroup. That's a great price for the posts.

[DarkTyranitar]

I got my check today and it wasn't as much as I thought it was going to be, so I'm going to buy the OS TM kit. I don't want to spend to much so I'm probably going to hot glue the crossover, my cousin might have one, and get some ply wood from him. I have 16 ga speaker wire laying around I'll just use that. Do I really need screws or will glue be enough? My cousin also has clamps so I'll just borrow those. Will poly fill be better than foam? Besides what I've stated and binding posts, is there anything else I will need?
BTW can you guys give me your impressions on the SQ from when you got them to when they got burned in?

[ROTECH]

hot glue and solder are not used in an XO for the same thing. Hot glue holds the components to a board.... Solder is to connect the electrical components together in a circuit.

I guess you can twist the leads together, then hot glue them, but Radio Shack sells the euro strips for $3 each, you would need 2.

[rtdbutcher]

Oops, I meant binding posts not terminals. Too many PBR's.

[heyduard]

Will poly fill be better than foam?

Paul uses only poly fill for the OS, and a couple of handfuls at that. His notes are in the latest PE flyer. Strangely enough, the stuffing notes seem to missing from the writeup on his website. Wait to tweak the amount of poly fill after driver break in.

[DarkTyranitar]

Thanks for all your responses, I'm gonna order them now. I will buy poly fill, but probably when I get my next pay check and I see now that I need a solder. Maybe my local hardware store will let me borrow one, kind of how auto zone lets you borrow parts from them if you give a security deposit. If they don't then I'll just buy one. I'll post pictures in the speaker gallery when I start building them.

[coffeebum]

If you have a stuffed animal in the house you can sacrifice they have polyfill inside, also old pillows. Just don't cut up something that would cause issues with the family. Glad to see you continuing on! I cannot remember, what are you gonna drive your speakers with?

[DarkTyranitar]

If you have a stuffed animal in the house you can sacrifice they have polyfill inside, also old pillows. Just don't cut up something that would cause issues with the family. Glad to see you continuing on! I cannot remember, what are you gonna drive your speakers with?

Unfortunately I don't have anything to sacrifice. I'm going to drive them with a yamaha htr-5460 aka the RX-V620 receiver. I found it at a flea market and it came with the speaker set which they all sounded clear but with no bass. I hope this will be good enough, I might buy myself an amp later on when I have the money, but for now I'll just use this receiver. Do you guys have any idea how long the speaker will take to get here? I ordered them yesterday and I was just curious how long it takes to get here.

[johnastockman]

I know that I said in a previous post that I wanted to build something with a peerless driver but I changed my mind and I'm going to buy the os mtm kit from diysoundgroup. My question is what else do I need to buy? the kit comes with almost everything that's needed but I know that there is a few other things missing. what tools would I need? what extra material would be recommended? I know that a lot of you solder you crossovers but I don't want to spend that much money, would a hot glue gun be a nice replacement? how about acoustic foam vs some foam from walmart? I know I'm asking a lot of questions, but I'm really fiending for these speakers and I want to build them asap because I'm holding out on my shows so that way I can experience them with my new speakers. I won't be able to reply to anybody till tonight because I have to work, but as soon as I get home I'll start responding.

You use the hot glue to keep the components on your XO board, you use solder to connect the XO pieces leads together. For a poly-fill type of stuff, I get the quilt batting from a fabric store. It comes in various thickness, I use the 1" thick dacron batting. It's easier to adhere to the inside walls, just cut the pieces to the size you need. You can also use it to fill the cabinets with the appropriate amount. For soldering, a 30 watt soldering "pencil" will work well and they are inexpensive. Don't use a soldering "gun"...their wattage is too high for the small component leads and can damage the capacitors with the heat transfer. Practice a bit so you get a feel for a good soldering technique. I think PE has a video that shows how to get a good solder joint. Here's some pics of the XO's I make.








These aren't the OS XO's, but just showing how I glue the parts down. The "boards" I use are 1/8" hardboard, usually about 3-4" wide and 4-6" long. It's also called masonite. I had a bunch of it left over from the sliding doors on an old shelf unit.


John A.