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Multi-Way Conventional loudspeakers with crossovers

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Old 10th September 2008, 10:26 AM   #11
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Have a look at Zaph's designs. He has some with a very high price vs performance ratio. Most notably his Bargain Aluminium MTM. Should be within budget.

http://www.zaphaudio.com/BAMTM.html

http://www.zaphaudio.com/index.html
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Old 10th September 2008, 10:32 AM   #12
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The big problem with Zaph's designs ( brilliant as they are ) is that the drivers he uses are not always avaliable from Australian suppliers.
When you factor in postage from OS what was a bargain often isn't.

Driver selection in Australia is a little sparse and very expensive when compared to the UK and USA for instance, tyranny of distance and all that. For example we pay double the USA price for Shiva Tempest subwoofers
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Old 10th September 2008, 10:36 AM   #13
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For $300 I wouldnt bother with building a DIY. I bought a pair of Jensen SPX-7 from eBay for about $350. Very solid built, decent sound (for non-OB standard). $1000 when new.

But if you must and have bit of allowance then ... OB with the following drivers would do:

Tweeters: 2x Vifa TC26 $50
Mid: 2x Cheapish Vifa or jaycar mid $120
Woofer: 4x 12" woofers $160
Two 45mmx1200mmx18mm MDF $25

About $50 for the active XO on breadboard. Then you need to source two stereo amps. Gainclone will set you back $200 or just buy used amps at cash converter for $100.

Things can be upgraded with decent Vifa tweeters and Mids (ie. P13WH) and Eminence alpha 15" woofers. But price will skyrocket.
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Old 10th September 2008, 11:18 AM   #14
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See post #3

OB's really do need a fair amount of room and for small spaces small boxes are a reasonable solution, you could do a small 3 way using an 8 inch woofer but 2.5 way probably easier as first project
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Old 10th September 2008, 12:01 PM   #15
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Knowing what I know now Id search ebay for a good pair of B&W D4s.
Ive got a set from the 1980s in my living room and they sound very very good. Ive seen pairs go for less than $200. Just my twopenneth
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Old 10th September 2008, 12:50 PM   #16
rabbitz is offline rabbitz  Australia
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Quote:
Originally posted by ashaw
What is a good book on speaker design?

really a noob at this.
The bottom 2 in this list are very good. The Loudspeaker Design Cookbook is the better but can be heavy duty but makes sense after you've built your 10th speaker. Speaker Building 201 is easier but less info.

http://darcheraudio.com.au/shop/inde...ex&cPath=10_25

Unless you are going to design and build heaps of speakers or just want to learn you are better off finding an existing proven design.
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Old 10th September 2008, 12:54 PM   #17
col is offline col  Australia
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I haven't used any of these myself but they kind of look ok:

http://www.theloudspeakerkit.com/

maybe the M5 bookshelf might fit your budget.

col.
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Old 10th September 2008, 01:18 PM   #18
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Drivers in the UK are expensive too, compared to the US.

I have purchased drivers from both Madisound and Parts Express, and made a saving over UK prices.

"By sea" freight prices are not too bad, and only take 4 weeks. Don't forget, you may get stung by import tax.

http://www.madisound.com/

http://www.partsexpress.com/speaker-building.cfm
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Old 10th September 2008, 01:45 PM   #19
ashaw is offline ashaw  Australia
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like offer given above by AndyG
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Old 10th September 2008, 08:59 PM   #20
Andy G is offline Andy G  Australia
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from my phone discussions with Alexis, it seems that he doesn't really have much more room than for a single 6.5" TM design, (although he would like something bigger ;-))

I suspect he will end up building this style with probably the 6.5" Nomex Peerless and the Peerless HDS tweeter.
or at a pinch, if he find the room, an MTM version. in which case maybe the 5" nomex in an MTM might be better for his room.

Alexis, if you want a lend of LSDC etc , no problem.

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