Terry Cain's BIB -why does it work and does anyone have those Fostex Craft Handbooks? - Page 506 - diyAudio
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Old 10th August 2012, 07:52 PM   #5051
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Originally Posted by Godzilla View Post
Not sure why there are any commercially available BIBs???
Agreed, being that this is TCs design that he put out to the public for DIY use.
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Old 10th August 2012, 07:55 PM   #5052
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6 feet tall, 1,5 feet wide and 2,5 feet deep loudspeakers have a very low WAF.

The sound on the other hand.......
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Old 11th August 2012, 06:22 PM   #5053
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Since when does WAF dominate sound.

Have you seen Wilson or Legacy or Avant Garde or Krell or...

I see your point though, i guess at some point the huge sum of money starts to override WAF.

"Honey these speakers are $27,000 and the best money can buy."

"Okay dear but i want a new walk in closet!"
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Old 12th August 2012, 04:50 PM   #5054
chrisb is offline chrisb  Canada
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Originally Posted by Etocynned View Post
Since when does WAF dominate sound.

might not dominate the sound, but in my experience can certainly trump choice of what goes where - and that applies to the speakers as well

Quote:

Have you seen Wilson or Legacy or Avant Garde or Krell or...

I see your point though, i guess at some point the huge sum of money starts to override WAF.

"Honey these speakers are $27,000 and the best money can buy."

"Okay dear but i want a new walk in closet!"
the closet would be the cheapest part - it's the designer frocks and shoes that'll kill ya

or a complete new kitchen reno - even if you can do most of that yourself, the appliances and stone countertops alone could exceed $20,000
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Old 12th August 2012, 05:51 PM   #5055
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or a complete new kitchen reno - even if you can do most of that yourself, the appliances and stone countertops alone could exceed $20,000
The $40k MacBook Pro

dave
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Old 12th August 2012, 09:32 PM   #5056
chrisb is offline chrisb  Canada
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The $40k MacBook Pro

dave

The joke being that when it was time to update Sue's old desk top XP machine, she cashed in on a work incentive points / discount program and took my and our son's advice to buy a laptop - ended up with a 13" MBP and loves it long time. Once freed from sitting at a desk in an old bedroom office, she realized that ,"gee, if you took down this and one of the other walls, the kitchen would be so much nicer - and think how much money we'd save if you do the general contracting, electrical, and cabinetry yourself".

6months later, waddya know, she was right
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Old 12th August 2012, 10:10 PM   #5057
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or a complete new kitchen reno - even if you can do most of that yourself, the appliances and stone countertops alone could exceed $20,000
We did ours for less, and not a Mac in the house.

jeff
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Old 13th August 2012, 10:55 PM   #5058
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I thought about trying the other way...getting small with the BIB. I got some 2 inch TBs, plugged them into the spreadsheet, and am ready to toss em up and see how they land.

Small for the Mac in the living room.

JH
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Old 14th August 2012, 12:13 AM   #5059
ebag4 is offline ebag4  United States
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I have read that the BIB alignment is forgiving. With that, how much smaller can a cabinet be below it's ideal size. What parameters would you adjust in the BIB calculator? The driver I would like to possibly use requires a huge box (Eminence Beta 12LTA), would I still get bass out of it in a smaller box?


Thanks,
Ed
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Old 14th August 2012, 05:26 AM   #5060
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It is forgiving because it's acoustically quite large referenced to the driver's specs, especially once the room's loading is added; so being tuned so far below Fs where the driver has no control, reducing acoustical loading can severely reduce its power handling below Fs to nothing, ergo a using high pass filter is a good plan.

Also, shrink it too much and there's not enough acoustical loading to smooth out its pipe harmonics without mass quantities of stuffing, reducing it to a large TL with minimal bass if there's not a lot of room gain.

GM
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