Terry Cain's BIB -why does it work and does anyone have those Fostex Craft Handbooks? - Page 500 - diyAudio
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Old 17th May 2012, 07:58 PM   #4991
FOXYE is offline FOXYE  Israel
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What 6.5-inch driver is recommended with good bass? the FE166en?
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Old 17th May 2012, 08:08 PM   #4992
zman01 is offline zman01  Bangladesh
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FOXYE,

Good bass means different things to different people!

The FE166en in the BiB works well. I built one last year. Please note, you will have to place BIBs near corners to bring out the bass. With corner placement bass is nice and powerfull. You will need to adjust the stuffing a bit to tune to your taste, so if the front panel has a removable part, it helps. You might also consider putting in phase plugs to improve the treble.
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Old 17th May 2012, 08:46 PM   #4993
Squeak is offline Squeak  Denmark
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Quote:
Originally Posted by Circlomanen View Post
Click the image to open in full size.

I had to try one this morning.
I need to work some with the stuffing.

J.
What is the gray wadding you are using? I'm having real trouble finding something like that here in Denmark, having to resort to folded felt and polyfill.
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Old 17th May 2012, 11:15 PM   #4994
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It's acoustic foam (i think). A Pro Sound store would sell it for deadening sound. This look like the BBBIBs using the Eminence 12lta. It will need a tweeter. I bet it has a powerful sound! Awesome!
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Old 18th May 2012, 01:23 AM   #4995
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Default 6.5 With Bass

It has probably been years since I posted anything on here. I just keep enjoying my Fostex 208 sigma BIB's in my spare time. I think the FE166 is a good driver. I used it in my first pair of speakers (Voigt Pipes). However, I remember once LONG ago Scottmoose had tried the FE166 and then the FE165 in a BIB. As I recall, he said he liked the FE165 quite a bit more, and that it subjectively had more bass. I believe the two drivers are about the same price. I don't have any experience with the 165 myself.
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Old 19th May 2012, 11:42 PM   #4996
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The 165 sounds very balanced in a BIB (and probably the C&C speakers) but i wouldn't call them bassy. They just provide the right amount of bass for smaller rooms IMO. I setup H-frames (using 15" Alphas) which enhanced the bass of the 165s alone in BIBs. I also used a rear firing super tweeter to enhance the treble but it was barely noticeable and probably subjective in need.
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Old 20th May 2012, 03:26 PM   #4997
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I just completed my Fostex FE168 Sigma BIB. The Fostex is the older style with whizzer. I actually built a trial box last December, and the results were good enough to try and make it pretty. BIB dimensions: line length - 125 in; zdriver - 27.125 in; internal width - 7.75 in; internal depth - 11 in; a-b-c - 5.5 in. I used two sheets of sandeply 3/4 in plywood from Home Depot. It's advertised as void free, but next time around I will look for something better. My samples had lots of voids.

I used solid ash for the front and very thin oak plywood veneer for the sides. I glued the ash to the front just proud of the sides, and butted up the plywood veneer to the ash. The ash has a 5/8 in roundover. I finished without stain, using General Finishes Polyacrylic water based topcoat - satin for a topcoat. The polyacrylic finish went on like a dream - no dripping or brush marks, without only light sanding between coats with a 3m superfine pad. I used a foam brush to apply the topcoat.

Thanks especially to Scottmoose for starting the thread and his many contributions throughout. I am enjoying the speakers immensely.

I use either Wright Audio Mono 25 monoblocks (williamson based) or Bottlehead Afterglow 2A3 amps. I listen to these all day without fatigue. No they don't make me like free jazz, or let me stay awake for a Sibelius symphony but the music always sounds good. Not the last word in bass impact but good enough. I don't use or feel any need for bsc.

Here are some pictures of the speakers:

This one show the construction details

Click the image to open in full size.

excuse my mess, i'm a bit of a slob while engaged in a project

Click the image to open in full size.


Click the image to open in full size.

Last edited by masiebers; 20th May 2012 at 03:49 PM.
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Old 20th May 2012, 03:58 PM   #4998
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Those are indeed quite pretty, masiebers

Very nice cover, that green one in the front. Which album is that?
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Old 20th May 2012, 05:01 PM   #4999
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Thanks kistelifur. The album is Computer World by Kraftwerk. It's a great album. Pocket Calculator is my favorite cut. See the link for a review of the album.
Computer World - Kraftwerk | AllMusic
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Old 20th May 2012, 05:05 PM   #5000
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Quote:
Originally Posted by masiebers View Post
Thanks kistelifur. The album is Computer World by Kraftwerk. It's a great album. Pocket Calculator is my favorite cut. See the link for a review of the album.
Computer World - Kraftwerk | AllMusic
Forehead-slap! Of course! I've heard every track on it a million times, but I've actually never seen that cover
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