Copperhead,
pics taken with a pro camera would make us even more jealous. Please don't. Instead, tell - what glue did you use to get the surface so nice?
pics taken with a pro camera would make us even more jealous. Please don't. Instead, tell - what glue did you use to get the surface so nice?
copperhead said:
Still a nice piece of kit... G5 or Intel? (either one, faster than my G4 Dual 867)
dave
Hi Pit, and thanks. I had already sealed the cabs with shellac, ( they're 33mm particle board ).
Then they got two coats of Selleys aquadhere. One coat on the material, it contorted and
shrank at first, ( things weren't looking good ), but recovered a bit once dry. Just tried to keep
the glue even. Put in position on one edge and ironed it on. It was probably the easiest part
of the whole construction.
Then they got two coats of Selleys aquadhere. One coat on the material, it contorted and
shrank at first, ( things weren't looking good ), but recovered a bit once dry. Just tried to keep
the glue even. Put in position on one edge and ironed it on. It was probably the easiest part
of the whole construction.
Dave, it was from the first shipment of Intel's into Australia. I had a G4, but it got fried during
a storm. I take a lot more care now at any sign of lightning. Disconnect.
I'm absolutely hopeless with computers, but a Mac makes it as painless as it's going to get.
a storm. I take a lot more care now at any sign of lightning. Disconnect.
I'm absolutely hopeless with computers, but a Mac makes it as painless as it's going to get.
copperhead said:
One of the LuxoLamp iMacs?
That is a shame... probably the most creative indutrial design ever, just a bit too far out for most people. Cal has a 20" LuxoLamp i'd like to inherit some day just to have one.
dave
And I'd like to inherit Sonia's 20". The darn thing is stupid fast. Thanks for the advice on that upgrade Dave.
Oops, now I'm contributing to this delinquency.
BIB anyone?
Oops, now I'm contributing to this delinquency.
BIB anyone?
BIB Configuration
Hello All,
I would like to reach out to you all for a tad bit of help. I am helping someone design a listening room. They are dead set on having the system in wall, and I am dead set on a BIB. Luckily there is a bit more room in the wall than normal, and this may just be workable. But my question is, can the BIB be split and turned without affect the waves in a major way? Basically this means splitting the front and back, so the front would essentially be a Voight pipe venting out of the bottom side into the back half of the horn. I am attaching a very crude drawing, please disregard the numbers, they are just mental notes. Also, before it gets pointed out, the top does need to vent and I think I have that covered, but will be a future question if this idea is feasible at all.
Thanks Everyone!
Hello All,
I would like to reach out to you all for a tad bit of help. I am helping someone design a listening room. They are dead set on having the system in wall, and I am dead set on a BIB. Luckily there is a bit more room in the wall than normal, and this may just be workable. But my question is, can the BIB be split and turned without affect the waves in a major way? Basically this means splitting the front and back, so the front would essentially be a Voight pipe venting out of the bottom side into the back half of the horn. I am attaching a very crude drawing, please disregard the numbers, they are just mental notes. Also, before it gets pointed out, the top does need to vent and I think I have that covered, but will be a future question if this idea is feasible at all.
Thanks Everyone!
Attachments
Greets!
Think about the sheer size of the WLs the pipe is trying to contain and it should become transparent that they don't care which way you turn them until they are small enough to be disrupted by going around tight corners, which will be high enough in frequency that you don't want them coming out of the pipe unattenuated.
Anyway, you'll be adding damping at the throat to attenuate any reflections back to it, so worst case is it will need more than some other folding scheme.
GM
Think about the sheer size of the WLs the pipe is trying to contain and it should become transparent that they don't care which way you turn them until they are small enough to be disrupted by going around tight corners, which will be high enough in frequency that you don't want them coming out of the pipe unattenuated.
Anyway, you'll be adding damping at the throat to attenuate any reflections back to it, so worst case is it will need more than some other folding scheme.
GM
Well that answer is good, really that is what i was hoping for. But, would I need to consider any type of a V-shape in the bottom of the cabinet just to help guide the waves?
OK, so back on track, does the BIB have to be folded or could you build it straight and have it up a foot or so on legs and unload onto the floor? I am thinking of an art studio of a friend of mine that is looking for something tall and dramatic.
djn said:
I believe the general consensus is yes. Someone a while back in this thread was working on one. On Godzilla's website there is the plans for the Tang Band driver that is floor loaded, you could just straighten the pipe. As for the others, and someone else will have to chime in with their knowledge, the cabinet may need to be lifted off the floor a bit to aid in the horn loading. Since BIB's are best in 1/8th space, using the corner, and generally have a foot or three space to the ceiling, they may need some hefty bottoms. then your problem would be how high the driver is to listening position.
An idea just hit though, around the 200 page mark, Scottmoose had come up with an astounding cabinet dimension using the Sease 7 inch coaxial, here is a link:
http://www.diyaudio.com/forums/showthread.php?s=&postid=1084968&highlight=#post1084968
There are 3 cabinet ideas on the page. Even if you make a 1 fold BIB, it would be roughly 14 feet, 28 in a single pipe.
GM,GM said:
Why didn't you include the FE207 in your list? Not a good choice?
I don't like to use a super tweeter so I'll choose the FE206....
Except Fostex and Hemp any other 8" FR for a BIB???
zayne742 said:
No. As GM said in his answer, the wavelengths being dealt with here are long enough to be ~acoustically transparent to the path direction
djn said:
Greets!
Yes, floor loading has been suggested/recommended on numerous occasions on this, and other, BIB related threads.
GM
G said:
Also: Pioneer B20, Monacor SP200X, Monacor SP200MX/8, Goldwood GW8003/8, Visaton BG20, Visaton B200, Supravox 215s of varying sorts, Audio Nirvana Standard 8 / Super 8...
Lots of 8” choices for BIBs!... and 6” and 4”… even 3” unfolded BIBs… amazingly flexible cabinet design for the DIY masses!
Last night I moved a small mirror around my new little listening room to find reflection spots. I also took/stole 6 twenty four inch square acoustic tiles from the ceilings of the building I work in. I hope no one notices.
The system sounds great without the acoustic treatment but I am curious about the improvements. The room does seem ‘live’ when I clap my hands – echo slap.
Last night I moved a small mirror around my new little listening room to find reflection spots. I also took/stole 6 twenty four inch square acoustic tiles from the ceilings of the building I work in. I hope no one notices.
The system sounds great without the acoustic treatment but I am curious about the improvements. The room does seem ‘live’ when I clap my hands – echo slap.
Godzilla said:
I would love to have seen the mirror dance, and the janitor's face when he noticed tiles. I have a room that is similar with the echo, and has many dead spots. Concrete floor, anlge-flat-angle ceiling. Wanting to do the same thing you are doing this summer. Did you ever use the B20 in a BIB?