Point me in the right direction

[subwoffers]

Hi there, after looking around this forum and posts it seems that i'm in way over my head.

A friend of mine gave me a pair of http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=280-115

with some old tweeters. I have had experience building boxes for subwoofers that go in cars but I have no idea where to start to build a nice box for these speakers to use in my room.

Any links or pointers would be awesome, sorry if I have missed a post where this was coverd.

 

[PeteMcK]

those are mid-range speakers, you'd need woofers as well....

personally, I wouldn't bother with them, but buy some mid-woofers that cover up to where the tweeters take over,

any more info on the tweeters?
What kind of music do you listen to & at what volume?

 

[BHTX]

Agreed. Goldwood doesn't publish much useful data on any of their drivers, and from what I can tell, the reason for that is likely because they're all close to worthless, very cheaply made. However, on the plus side, they're priced accordingly. From the looks of it, these mids are no different. There's much better that can be had for not much more.

Any info on those tweeters?

 

[subwoffers]

I this these are old 1in dome bose tweeters.
What would you suggest to replace the Goldwoods with? I dont want anything too large because I need them to sit on my desk.

Cheers

 

[Andy G]

Ditch the tweeters.
Ditch the Goldwood mids...
neither are worth the effort of building a box !!!

If you want really simple for on your desk, look for a small project with a decent 4"or 5" full range driver.

Depends on how much you want to spend,but something using the TB 4" bamboo or al from Parts Express should do beautifully as a desktop.

 

[sreten]

Hi,

I agree with all that has been said in the previous posts.

The goldwood driver is best used as a replacement mid for old
speakers with this type of sealed back midrange, modern 3-way
designs do not use sealed back midrange drivers.

http://www.madisound.com/catalog/product_info.php?products_id=1731

And build the crossovers yourself.


/sreten.

 

[subwoffers]

If you want really simple for on your desk, look for a small project with a decent 4"or 5" full range driver.

Thats sounds great, the only problem is I cant seem to find them on the site. It seems like they only have a 3inch.

Where does everyone get their parts from? I'm intrested because Its often hard to find a Company thats in Canada or Ship to Canada.

 

[Andy G]

Try Parts Express, and look for Tangband drivers.

Not sure what Solen carry, but you could look up their web site as well, they are in Canada iirc

 

[sdclc126]

Take a look at www.zaphaudio.com - he's got several very small designs on his site, the very latest a 2-way with a 4" woofer; even simpler would be a pair of his single driver Hi Vi B3S speakers.

 

[BHTX]

subwoffers:

Highly recommended, might be perfect for this application, company is in Canada:
http://www.creativesound.ca/details.php?model=FR125S
http://www.creativesound.ca/details.php?model=WR125S

Even cheaper alternatives:
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-848
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-846
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=297-427

 

[sdclc126]

These 3-inchers are on sale too:

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-809

 

[subwoffers]

Thanks for the help!
With some of these full range drivers above, is a tweeter still needed?

 

[sdclc126]

Thanks for the help!
With some of these full range drivers above, is a tweeter still needed?

Yes! And - no!

Most of the good fullrangers go well above 15 kHz and the TBs, at least the 3-inchers, claim to go all the way to 20, just about the limit of hearing. All of them begin to roll off lower than most tweeters - but that may not be an issue for some.

It will depend on your preferences and you won't know what those are without comparing. If you use a 3" you probably won't need a tweeter but you'll definitely want a subwoofer. If you use a 4" or 5" you'll probably want a tweeter to "fill in" the very top range where these drivers start too roll off. A sub will still be a good idea here too.

The good news here is that you can go simple and inexpensive with the tweeter and crossover - you might consider the three very compact and cheap but decent Dayton tweeters on PartsExpress - all less than $6.00 apiece. You can let the fullrangers do their thing without any low pass, and just protect the tweeter with a single capacitor, say around 5 kHz or above.

If you end up feeling you don't need the tweeter then you haven't spent much money gaining the knowledge!

 

[chainenoble]

http://solen.ca/

look under hi-vi fullrange drivers.you should find something that will work.and their cheap too.

 

[subwoffers]

Thanks for the input, I think I will order this
http://www.madisound.com/catalog/product_info.php?products_id=1731
since you experts say the goldwoods is not worth my time.
The only problem is I have no experience building crossovers. The only Ones I have ever dealt with are from 3 way car audio Kits and Amps.

Any links for which kind I would need to build? And where to buy parts?
Thanks.

 

[BHTX]

The only problem is I have no experience building crossovers...

They're already built!
http://www.madisound.com/catalog/product_info.php?products_id=1732

I don't have any experience with passive crossovers, or woodworking either.. so don't feel left out.

Anyway, with that said, I'm not exactly sure how universal that crossover really is and how well it'd work. It looks as though it probably doesn't use any baffle step compensation or anything. If you're really interested in this kit, I would simply give Madisound a call and speak to one of their sales people. Ask them about what size and dimensions they recommend for an enclosure. If you don't want to build your own, see if one of their prebuilt enclosures would be suitable. They might even be able to go ahead and cut the baffles for you, so that all you have to do is put the drivers and everything in the enclosures and assemble it. But yeah, that's what I'd do.. just give them a call.

 

[sreten]

http://www.madisound.com/catalog/PDF/Swifty.pdf?osCsid=f2cf319f237ca91c085826066d03287e

Hi,

The built crossovers are the same as detailed in the above.
By building them yourself (hardwiring, no pcb) you can cut costs.
The crossover does include some BSC.

/sreten.

 

[subwoffers]

Thanks, I think i'll purchase the cross-overs this time. I do however have the tools/experience to build a box.

Since there will be a Pair of speakers,
1 cross over for (1 woofer 1 tweeter) So all in all I will need a pair of cross-overs. correct?

Anyone have any experience or reviews with this kit?

 

[BHTX]

Yes, you'll need to purchase 2 of the crossovers.
No personal experience with this kit, although I've always been aware of the word of mouth that it's supposedly a really good deal for the money if you're looking to assemble a pair of 2-way bookshelf speakers on a tight budget. Might wanna take a look at the links below..

http://www.google.com/search?as_q=s...ny&as_dt=i&as_sitesearch=&as_rights=&safe=off
http://www.diyaudio.com/forums/showthread.php?s=&threadid=100866
http://www.diyaudio.com/forums/showthread.php?s=&threadid=104332
http://www.diyaudio.com/forums/showthread.php?s=&threadid=96018

 

[subwoffers]

Thanks, I think i'll have a fun little project going soon.

In this post, http://www.diyaudio.com/forums/showthread.php?s=&threadid=100866

The sides of the Box looks like its Mdf with veneer glued on, however the front looks like it could be a hardwood like Oak. Is this correct or should boxes only be built with 100% mdf?