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Multi-Way Conventional loudspeakers with crossovers

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Old 1st September 2008, 08:45 AM   #1
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Default Bookshelf speakers

looking for descent bookshelves speakers for my fronts and rears (surrounds) for my HT setup id rather just have someone suggest the actual drivers them selves and make my own cabinets looking for great response with out losing SQ any help would be great
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Old 1st September 2008, 10:28 AM   #2
Nanook is offline Nanook  Canada
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Default way too vague

to allow any to help.


stew
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Old 1st September 2008, 10:34 AM   #3
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700$ max for 2 pairs (all 4 speakers)

8 ohms

130 wrms

3 way

hoping for sugguestions on a matching

Tweeters

midrange


woofer

crosser over


do you need any other information? if so feel free to ask and ill help you so you can help me
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Old 1st September 2008, 10:48 AM   #4
kmaier is offline kmaier  United States
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I would suspect you're going to have difficulty on this. First, bookshelf and 3-way seem "mutually exclusive" unless your bookshelves are both large and empty. For HT you have several options:

1- Look at Madisound and possibly pick a 2-way Seas kit:
http://www.madisound.com/catalog/pro...oducts_id=8307

2- Look at the Fostex site as they have some enclosure plans with some aimed at HT use... and have some 2-way and 3-way:
http://www.fostexinternational.com/d...ec_enc_1.shtml

3- Build a larger front channel pair and a smaller rear channel pair as your budget may get you parts for 4 speakers but the quality will suffer when spread that thin. This may allow a decent 3-way for front and a decent 2-way for rear, but that's my $0.02. Good luck.

Regards, KM
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Old 1st September 2008, 10:53 AM   #5
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Tweeters

thinking these http://www.partsexpress.com/pe/showd...number=264-500

midrange

thinking these http://www.partsexpress.com/pe/pshow...TOKEN=44017859

woofer

thinking this http://www.partsexpress.com/pe/showd...number=297-310

crosser over

thinking this http://www.partsexpress.com/pe/showd...Number=260-156

and this cabinent

http://www.partsexpress.com/pe/showd...number=302-753

what do you think?

oh wow didnt notice your post... those are alot nicer than what i posted
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Old 1st September 2008, 11:03 AM   #6
kmaier is offline kmaier  United States
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I think you blew your budget already... at $350+ per speaker based on parts listed.... seems your tweeter is the lowest sensitivity as well. Suggest you re-think what you're trying to accomplish and what you're going to use to drive the 4 channels with, etc. A power handling spec. doesn't mean much, but you should look at available power and what overall sensitivity of any particular system is.

Regards, KM
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Old 1st September 2008, 11:09 AM   #7
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haha ya i reliezed that after i posted... also the reason i went with that tweeter was because of the rest are 6 ohms

powering it is just a standard 5.1 reciever for now

my goals well simple i want a descent sq setup

you have to excuse me i have lack knowledge in home audio
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Old 1st September 2008, 11:21 AM   #8
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I'm thinking you might've done better to post this in the regular loudspeakers section, rather than the full-range, which is, as the name suggests, dedicated to full-range / wide-band drive units.

However, FWIW, I'd avoid generic XO's like the plague. They're never optimal. For a start all three of the drivers (decent units though they are) that you mention have different nominal sensitivites, which this generic thing isn't going to help rebalance. Next up, it doesn't account for any of the driver's behaviour. If they have a break-up mode in their passband, it's not going to correct for it. Nor will it be providing optimal roll-off slopes -all drivers need to be treated differently.

Moving on to the cabinet, it's way too small to produce any real LF output if sealed with that bass driver, and if vented, it's still too small & will have massive peaking at cut-off. It'll be a bit of a squeeze to fit the drivers in too. Not good.

OK, some general advice: forget 3 way bookshelf speakers. A 3 way tends to need to be large, i.e. a floorstander. There are exceptions, but they're few & far between, plus, it's additional complexity which if this is your first project, you can do without.

FWIW, if I were you, & looking at your limited budget of $700 for two pairs of speakers, I would build Zaph's BAMTM http://www.zaphaudio.com/BAMTM.html or one of his other designs. Zaph's speakers are well recieved & excellently designed. He has plenty of other projects on his site too. Troels Gravesen also has many high quality multiway projects on his site, which you'll find here: http://www.troelsgravesen.dk/Diy_Lou...r_Projects.htm several of which should fit into your budget.
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Old 1st September 2008, 11:46 AM   #9
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http://www.madisound.com/catalog/pro...roducts_id=452

maybe this?

or would i be much better off with the one you posted
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Old 1st September 2008, 12:36 PM   #10
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I'd definitely go with Zaph's design over the one you link to. For a start, that one is $375 a pop, making it $50 over your budget, nor does it include cabinets in that price. I don't see any response graphs, or XO details either which is setting my alarm bells ringing.

If you want a wild card, you might also fancy trying one of Bob Brines's BR cabinets with full range drivers:
http://www.geocities.com/rbrines1/Pages/FB-16/Main.html &
http://www.geocities.com/rbrines1/Pages/FB-20/Main.html respectively. Fully built they're out of your price range of course, but you should be able to afford to buy the plans from Bob & the components & build materials within your budget easily enough.
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