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Old 16th June 2008, 03:25 PM   #1
gychang is offline gychang  United States
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Default in BiB?

According to PE, this can be used with mid/bass at 2-4K Hz, can this be used in BiB with addition of the tweeter? (plan to xover at 2K).

any thoughts?

mid/bass:
http://www.partsexpress.com/pe/showd...number=297-435

tweeter:
http://www.partsexpress.com/pe/showd...number=275-035

gychang
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Old 16th June 2008, 03:48 PM   #2
sreten is online now sreten  United Kingdom
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Hi,

the driver looks problematic around 1.5KHz. The tweeter does not do 2kHz.

Tangband W5-704D easier crossover, and can be crossed high to a small dome.
(around 3.5KHz to 4khz)

/sreten.
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Old 16th June 2008, 03:51 PM   #3
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There's no reason not to make a two-way bib. I belive that 'Zilla has asked why he hasn't seen any yet.

There are plenty of good drivers out there that aren't "fullrange".

What were the critria for chosing this driver? Any specific design goals?

I was looking at something along the same lines but using this woofer here . It's nearly fullrange so you can bring in the tweeter up high and out of the "telephone band".

Has anyone here made a multi-way Bib?

edit: I got ninja'd on the driver by sreten.
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Old 16th June 2008, 04:34 PM   #4
fred76 is offline fred76  Philippines
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Quote:
Originally posted by gurley123
There's no reason not to make a two-way bib. I belive that 'Zilla has asked why he hasn't seen any yet.

There are plenty of good drivers out there that aren't "fullrange".

What were the critria for chosing this driver? Any specific design goals?

I was looking at something along the same lines but using this woofer here . It's nearly fullrange so you can bring in the tweeter up high and out of the "telephone band".

Has anyone here made a multi-way Bib?

edit: I got ninja'd on the driver by sreten.

I posted this at the BIB thread before:

http://www.diyaudio.com/forums/showt...58#post1471558

I did cross the tweeter ~9kHz to a 5" 'nearly' full range driver.

The drivers I used are not available in the US anymore afaik.
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Old 16th June 2008, 04:42 PM   #5
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Doh' I remember those now. They had those cool k-slots on them. Have you done anything to them since?
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Old 17th June 2008, 01:20 PM   #6
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Similar to fred76's units. Very pleased with these. 1 in each of the four corners of the listening/theater room.
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Old 17th June 2008, 01:28 PM   #7
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Default Re: in BiB?

Quote:
Originally posted by gychang
According to PE, this can be used with mid/bass at 2-4K Hz, can this be used in BiB with addition of the tweeter? (plan to xover at 2K).

any thoughts?

mid/bass:
http://www.partsexpress.com/pe/showd...number=297-435

tweeter:
http://www.partsexpress.com/pe/showd...number=275-035

gychang

They would make a nice sized BIB. Not real sure about the kevlar cone, some do not like the sound. But, for the price, could be worth a try. As for the little 1.5k spike, dare I say it, a crossover. If so, definetely a little larger tweeter. This may all depend on what the intended use is though.

The driver gurley123 suggested looks very good, have been eyeballng it also. The qts is a bit more in the range for a horn.
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Old 17th June 2008, 01:35 PM   #8
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Doesn't really matter as a tweeter is going to be used anyway. The cab. will likely just be a bit larger.
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Old 17th June 2008, 01:45 PM   #9
Kensai is offline Kensai  United States
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Go on Zaphs and look at the specs and graphs of some of the lower end Seas midwoofers. They've got some great flat responses with nice, polite rolloffs up top, ideal for for running fullrange with supertweeters, and many make for only moderately sized BiB cabinets and should be able to handle fairly low tunings, to boot. I'm interested in this sort of arrangement myself, and have run pretty much everything 6" and under through the BiB spreadsheet, just to see, and some of the results were really promising. You're just looking for a reasonable combination of low Qts, low Vas and low Fs (and low $$ in my case, too).

Kensai
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Old 17th June 2008, 02:42 PM   #10
gychang is offline gychang  United States
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Quote:
Originally posted by Scottmoose
Doesn't really matter as a tweeter is going to be used anyway. The cab. will likely just be a bit larger.
any suggestions on the demensions?, or shall I plug them in on the BIB calculator using the mid/bass driver specs...

gychang
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