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keep_hope_alive
02-01-2012, 02:37 AM
I figured it makes sense to have a tweeter sphere thread here as well.

I started making another set last night, worked on them a bit more tonight.

I buy solid wooden spheres ($1.50) - like knobs or post tops, at my local Hobby Lobby. i hollow out a cylinder, (using Forstner bits, hole saws, dremel, etc.), drill a hole for threaded rod, and then... i'm not sure where to go next for a nice finish.

tools i use
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012011.jpg

i used double-sided foam tape to hold the sphere in the vice without making marks. works well.
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012018.jpg

I had to dremel sand the opening a bit larger in order to fit. the Forstner bit was either too small or too large. :(
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012020.jpg

rods screwed in
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012021.jpg

wires soldered on tweeters
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012023.jpg

going with hammered silver paint (to match my painted interior)
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012028.jpg

painted and waiting (pic taken 2 hours ago)
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/accordkicks2012035.jpg

i haven't decided how best to finish off the mount. there is a gap around the tweeter face due to it's construction. the widest flange is in the middle. so i need something to create a smooth transition. and then the grill - the Vifa doesn't have one. i have one, but it's larger than necessary.

matt_bennett05
02-01-2012, 02:41 AM
I read the discussion on this concept and do think it's a neat concept. Looks even neater to me, too. Just wish I hadn't cut my doors before this came up lol.

keep_hope_alive
02-01-2012, 02:42 AM
previous work:
in the scion (temporary - we'll build another set)
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontcbox006.jpg

threaded rods
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres020.jpg

mounting
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres022.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres024.jpg

aiming with foam and laser pointers
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres025.jpg

before Forstner bits - a hole saw first
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres003.jpg

then a paddle bit - we used two to create a ledge
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres005.jpg

then a dremel to smooth
http://i38.photobucket.com/albums/e128/phat_funky_beats/2005sciontC/sciontweeterspheres010.jpg

keep_hope_alive
02-01-2012, 02:47 AM
currently i have spheres in my apillar pods - i can rotate and adjust aiming - some Rockford tweets
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012001-1.jpg

i also played with these old Alpine tweets
http://i38.photobucket.com/albums/e128/phat_funky_beats/Accord%202009/AccordTweeters003.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/Accord%202009/AccordTweeters001.jpg

but i have this version (painted)
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres2006.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres2005.jpg


used to have them like this:
http://i38.photobucket.com/albums/e128/phat_funky_beats/Accord%202009/accord081410_metersdashRTA061.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/Accord%202009/Accord_Apillar012.jpg

subzero
02-01-2012, 03:04 AM
how do you feel about reflecting off the glass?

TaylorFade
02-01-2012, 03:10 AM
Siiiick!! I want. Price for a pair? Lol.

You should see my lame *** attempt with a ball o' yarn and some resin. Lmfao. Strictly experimental and with stuff I had laying around the house. Well, my Mom's house. I ain't got no yarn at my crib.

Here you go...

ball o' yarn.
http://i848.photobucket.com/albums/ab45/taylorfade/5c8feccf.jpg

little dip in the resin to make caramel apples.
http://i848.photobucket.com/albums/ab45/taylorfade/1f3c2ff1.jpg

little sanding.
http://i848.photobucket.com/albums/ab45/taylorfade/7341d03b.jpg

Built in stuffing from the yarn that stuck.
http://i848.photobucket.com/albums/ab45/taylorfade/3554c7c0.jpg

Fitment.
http://i848.photobucket.com/albums/ab45/taylorfade/0b86049d.jpg

keep_hope_alive
02-01-2012, 03:11 AM
aiming the tweeters toward you eliminates dominant windshield reflections.

firing across had reflection issues that resulted in phase interference.

reflections in the scion are off the nearby side window - which extends the soundstage width to beyond the side mirrors. it's cool.

the spheres in pods i have now are ok, but not ideal. course, they are just some random RF tweets i had laying around. they sound good for what they are.

keep_hope_alive
02-01-2012, 03:13 AM
i got about 2 hours of work in the new tweeter spheres so far (first set of pics).

Bettr n' Revrse
02-01-2012, 03:15 AM
I was just reading through the diffraction thread on DIY on my way to AZ the last week...

trumpet
02-01-2012, 04:57 PM
I made a set of tweeter spheres using rubber balls. I needed a 1-13/16" hole for my tweeter flush mount cup, and the balls I found at the hardware store in the pet care department are just about perfect. $1.79 for 2. They can be cut by hand with a sharp knife and fine adjustments are done with a sanding drum on a Dremel.

CAT MAN
02-01-2012, 05:04 PM
:omg:

TheUnderFighter
02-02-2012, 06:14 PM
This was a huge help man... I've been debating between a flush-mount of the tweeters in the sails or a-pillars... and these spheres. Any experience flush-mounting in the sail panels?

wenn_du_weinst
02-02-2012, 06:31 PM
exactly what I plan on doing with my tweeters. I just don't know what size I will be going with yet.

Imtjnotu
02-02-2012, 06:41 PM
dude how much for 2 of them........if not where do u get the spheres from? holmes depot?

TheUnderFighter
02-02-2012, 07:11 PM
dude how much for 2 of them........if not where do u get the spheres from? holmes depot?

They don't look too hard to make if you got the tools man. Let's give it a shot next week?

Imtjnotu
02-02-2012, 07:15 PM
They don't look too hard to make if you got the tools man. Let's give it a shot next week?

ok but where do u get the spheres ?

sobe3yourself.
02-02-2012, 07:21 PM
ok but where do u get the spheres ?

michael's arts and crafts stores

http://2.bp.blogspot.com/_Um5VUlIM-dc/TH1Z6Tnhx2I/AAAAAAAAGLw/MKoABJr9ANA/s1600/woodenballs.jpg

sacsking916
02-02-2012, 07:25 PM
michael's arts and crafts stores

http://2.bp.blogspot.com/_Um5VUlIM-dc/TH1Z6Tnhx2I/AAAAAAAAGLw/MKoABJr9ANA/s1600/woodenballs.jpg

what you doin in michaels????? maybe i should tell my girl to pick me up some of these with her uber stellar discount

sobe3yourself.
02-02-2012, 07:33 PM
what you doin in michaels????? maybe i should tell my girl to pick me up some of these with her uber stellar discount

google is your friend :)

sacsking916
02-02-2012, 07:43 PM
google is your friend :)

you google'd "wood balls?"

TheUnderFighter
02-02-2012, 07:43 PM
^^^^^^^^^^^

ok but where do u get the spheres ?
That... or we buy blocks of wood and whittle them down. :D

Imtjnotu
02-02-2012, 07:53 PM
haha nope getting spheres

keep_hope_alive
02-02-2012, 08:27 PM
michaels or hobby lobby or other craft stores carries them, as mentioned. a paddle bit can also make the hole you need. remember if you want to make a stepped hole - to start with the larger diameter then finish with the smaller diameter.

the real trick is figuring out aiming and the angle at which you should drill for the threaded rod - relative to the angle of the apillar.

i realized my angle is more than i intended, they will fire across more than i intended... so i may remake them. but for only a few hours - not a big loss. i'll run these for now. finish pics coming later tonight.

keep_hope_alive
02-02-2012, 08:41 PM
I used some rope caulk to temporarily hold the tweeters in place and also hold the grill on. i want to test before i make these permanant.

i'm also taking a different approach. instead of having the grill flush with the sphere, i have the actual tweeter cone flush and the grill protrudes - should be better, we'll see.

these vifa are tough since you have to make your own grill. normal tweeters are MUCH easier to finish off.

http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012001.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012002.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012003.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012004.jpg

keep_hope_alive
02-02-2012, 08:45 PM
^^^^^^^^^^^

That... or we buy blocks of wood and whittle them down. :D

i have a plan to make large home audio spheres with the new Dayton full range or Fostex full range - i will make the sphere enclosures out of concentric rings of birch, so the inside is diffuse. then i need to finish the outside with either a router, sander, filler, or all of the above.

TheUnderFighter
02-02-2012, 10:43 PM
i have a plan to make large home audio spheres with the new dayton full range or fostex full range - i will make the sphere enclosures out of concentric rings of birch, so the inside is diffuse. Then i need to finish the outside with either a router, sander, filler, or all of the above.

:o pics!

keep_hope_alive
02-02-2012, 10:56 PM
:o pics!

i have to buy the speakers first. :O

Moble Enclosurs
02-02-2012, 11:03 PM
I think u have some business kha! Nice work man. I have only seen these utilized twice in many years and they both proved quite advantageous in both. Great thread starter

KyleBechtold
02-02-2012, 11:15 PM
you need to find a ball joint so it doesn't matter where you cut the hole..

sobe3yourself.
02-02-2012, 11:18 PM
you google'd "wood balls?"

i googled "bed post wooden spheres" this came up.

Imtjnotu
02-02-2012, 11:28 PM
Keep hope u need to build these for us common folk

http://theintellution.files.wordpress.com/2011/10/shut-up-and-take-my-money.jpg?w=640

Bettr n' Revrse
02-02-2012, 11:38 PM
Keep hope u need to build these for us common folk

http://theintellution.files.wordpress.com/2011/10/shut-up-and-take-my-money.jpg?w=640

Yep! I need some for my truck!

keep_hope_alive
02-03-2012, 03:04 AM
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012005.jpg

odd these seem blurry
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012006.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012007.jpg

not bad, i want to get them finished a bit better
http://i38.photobucket.com/albums/e128/phat_funky_beats/accord/tweeterspheres022012011.jpg

keep_hope_alive
02-03-2012, 03:10 AM
Keep hope u need to build these for us common folk

http://theintellution.files.wordpress.com/2011/10/shut-up-and-take-my-money.jpg?w=640

haha.

i'm a hands-on guy. i usually make it up as i go. if i had the tweeters i can make the spheres. if i had the vehicle also, i could figure the mounts.

making holes in wood is easy. finding a way to keep the tweeter secured while routing wires and mounting at the perfect angle - that is the hard part.

Imtjnotu
02-03-2012, 03:12 AM
I just died a little in side



I could get u tweeter dimensions

Bettr n' Revrse
02-03-2012, 03:36 AM
haha.

i'm a hands-on guy. i usually make it up as i go. if i had the tweeters i can make the spheres. if i had the vehicle also, i could figure the mounts.

making holes in wood is easy. finding a way to keep the tweeter secured while routing wires and mounting at the perfect angle - that is the hard part.

In my truck I wanna do something with a swivel mount...

winkychevelle
02-03-2012, 04:06 AM
here's a swivel mount that you could use with the spheres. they can be tightened after setting sound stage and wire can pass through them

Sears: Online department store featuring appliances, tools, fitness equipment and more (http://www.sears.com/shc/s/p_10153_12605_SPM2731962502P?i_cntr=1328256129024)

Bettr n' Revrse
02-03-2012, 04:24 AM
Hmmm those may work...

winkychevelle
02-03-2012, 04:38 AM
throw some foam around them and a little vinyl and u could hide the metal. im gonna be trying them soon. i have the fittings i just need to build the spheres

keep_hope_alive
02-03-2012, 01:16 PM
with that swivel ball (nice find) the wire would be routed separately. so you'd need to dress up that as well.

i do like that idea. being able to aim the tweeters is handy.

and the new spheres sound great. so do the Vifa ring radiator tweets. Much better than the others.

keep_hope_alive
02-03-2012, 01:19 PM
I just died a little in side



I could get u tweeter dimensions

having the actual tweeter is the only way i could guarantee it would fit correctly.

can i make a hole in a wood ball for you? sure - easy, just tell me the outside diameter of the tweeter. I can i make it a certain depth? sure - easy, just tell me total depth + wire. if that is all you want, then yes, i can do that. you'll have to figure out how to make it stick in the hole, drill the hole for the mount/wire, paint/finish to your tastes, etc.

winkychevelle
02-03-2012, 09:39 PM
with that swivel ball (nice find) the wire would be routed separately. so you'd need to dress up that as well.

i do like that idea. being able to aim the tweeters is handy.

and the new spheres sound great. so do the Vifa ring radiator tweets. Much better than the others.

since its just an air line with no quick-connect its hollow thru and thru so u can rub the wire same as the hollow tubes

keep_hope_alive
02-04-2012, 04:14 AM
since its just an air line with no quick-connect its hollow thru and thru so u can rub the wire same as the hollow tubes

Dude, it's hollow? That's awesome.

winkychevelle
02-04-2012, 06:55 AM
Dude, it's hollow? That's awesome.

the ones i have are. as long as u dont have some crazy bend u should have a problem. im gonna be doing mine here shortly at the shop

The_Grimy_One
02-04-2012, 07:01 AM
You never cease to amaze me... I may go back to a component set soon to do this. I was going to do something similar, but didnt exactly know how...

Bettr n' Revrse
02-04-2012, 07:14 AM
I'm doing this I just am not sure I have the tools... Gunna use seas prestige soft domes I think...

whitedragon551
02-04-2012, 09:25 AM
I want a pair. Looks like I need to buy more tools.

Why So Cereal?
02-04-2012, 10:08 AM
I like that swivel idea. I had already bought the threaded ******* to use for mine.
I was going to try the PVC end cap idea though Cheap, adjustable, easily replaceable tweeter pods - DIYMA.com - Scientific Car Audio - Truth in Sound Quality (http://www.diymobileaudio.com/forum/how-articles-provided-our-members/53732-cheap-adjustable-easily-replaceable-tweeter-pods.html).

Anyone know if there's a difference between the wood spheres and the PVC end caps as far as performance? or is it pretty much the same principle?

keep_hope_alive
02-04-2012, 12:59 PM
i have PVC caps also.

yes, the same principle.

the idea is to eliminate any hard edges around the tweeter. using a cylinder (pvc cap) is very similar to a sphere.

The Forstner bits are the way to go - but mine have a smaller guide spike $25 for the small set, $50 for the set i have. the larger bit is $25 by itself. You could just buy the forstner bit that is the size of your tweeter. The Irwin version has a better guide spike. The hole in the wooden sphere is larger than the spike, so the forstner bit wobbles a bit at first. If you have a paddle bit you can get a similar result. If you have a hole saw, you will need to fill the hole created at the back. you will need a vice to hold the sphere steady, and i have found double-sided foam tape works well to prevent marking and hold it in place.

I have access to a drill press - and will get it in my garage soon.

whitedragon551
02-04-2012, 01:02 PM
The wood is more rigid as well.

keep_hope_alive
02-04-2012, 01:14 PM
i feel the spheres are better, but a cylinder is capable of being as good if not better based on Dickason's measurements. but note he is discussing mounting on the side - not the top.

http://i38.photobucket.com/albums/e128/phat_funky_beats/Sound%20Domain/dBvariationcabinetshape.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/Sound%20Domain/dBvariationcabinetshapeimg.jpg

Why So Cereal?
02-04-2012, 01:24 PM
I actually like the look of the wood spheres better, but like the ease of the PVC caps. Still deciding which one I'm gonna do.

If I were to do the cylindrical PVC cap, would it be better to have the tweeter flush with the opening or recessed in a bit? I guess if the idea is to avoid hard surfaces around the tweet, they should be flush, huh?

hispls
02-04-2012, 01:32 PM
The best ones I've seen have some mechanism to swivel them once mounted to really dial them in once mounted.

keep_hope_alive
02-04-2012, 01:57 PM
flush is best. the swivel air tool linked in the previous page is a great idea. i will employ that soon.

Why So Cereal?
03-09-2012, 08:58 PM
I finally got these done today and I was NOT expecting the huge difference these things made. My tweeters were initially on the dash facing the respective headrest. Now they are about mid way up my pillars, same aiming and it made a world of difference. My entire stage seemed to just open up. Also, even though the tweeters are actually closer to me than they were before, the vocalist seems to be right about at my windshield wipers instead of right at the tip of my dash. Instruments/musicians that were about halfway between center and far left or right now have more definite placement and my high frequencies seem a lot more airy with the tweeters being pretty difficult to locate by ear. Overall, I am very impressed and this is using the PVC end caps. I will be changing to wooden spheres some time next week.

Just thought I'd share my experience :)

pickup1
03-09-2012, 10:50 PM
Pics?

Why So Cereal?
03-09-2012, 10:57 PM
Pics?

Thats right after they were sprayed. I should have let them sit a little longer as some of the paint came off when I went to install them. Not a huge deal since I'm going with the wooden spheres soon.
http://i1234.photobucket.com/albums/ff407/princ3cmo/IMAG0750.jpg

This is before I put the tweeter in. I didn't take any shots after the tweeter was in or of the other side. I can tomorrow when its brighter outside though if need be.
http://i1234.photobucket.com/albums/ff407/princ3cmo/IMAG0751.jpg

I also didnt intend for them to stick out so far but it was what I had and I dont think it looks bad, so I left it. I might switch up to shorter "threaded *******" later though

keep_hope_alive
03-11-2012, 04:16 PM
Glad you like the improvement. Menards had the swivel air tool fitting for $3. I got some to try.

TheUnderFighter
03-11-2012, 05:37 PM
Glad you like the improvement. Menards had the swivel air tool fitting for $3. I got some to try.

Is it exactly the same? If so, could you link them to me so I could order them from Menards? I wish we had a store over here :(
Also, I'm currently still using a standard passive component set. Would you think the pods even worth the effort at this point? Or should I just wait till I switch to an active set-up?

Why So Cereal?
03-11-2012, 06:11 PM
Is it exactly the same? If so, could you link them to me so I could order them from Menards? I wish we had a store over here :(
Also, I'm currently still using a standard passive component set. Would you think the pods even worth the effort at this point? Or should I just wait till I switch to an active set-up?

Any front stage, active or passive can benefit from spheres. The setup he did in the tC used spheres and that set was passive. Diffraction doesnt care about active or passive lol

trumpet
03-11-2012, 08:02 PM
I also didnt intend for them to stick out so far but it was what I had and I dont think it looks bad, so I left it. I might switch up to shorter "threaded *******" later though

The distance away from the pillar and windows may be helping to reduce reflections. That might be the same distance I have my spheres from my A-pillars and my tweeters are (supposed to be) aimed across the dash. I messed up when I drilled the driver's side hole in the pillar trim, but even with wonky aiming the tweeter has virtually disappeared if I close my eyes.

keep_hope_alive
03-12-2012, 02:04 AM
Agreed that you want some distance between the cup and any surface.

I can check the Menards skew, but they were Bostitch brand. Same as this
Buy the Bostitch ISWIVEL-14M Swivel - 1/4 inch MPT at Hardware World (http://www.hardwareworld.com/Swivel--14-inch-MPT-pKZR1QL.aspx)

http://www.hardwareworld.com/files/pi/bQ/L/KZR1.jpg

They have limited movement so you should still angle them where you want and fine-tune from there. Also, you have to glue the smaller end on, use of adhesives is required, maybe a set screw.

Why So Cereal?
03-16-2012, 07:50 PM
Went ahead and took out the PVC caps today and did the wooden spheres. Looks a whole lot cleaner to me.

http://i1234.photobucket.com/albums/ff407/princ3cmo/IMAG0755.jpg

keep_hope_alive
03-19-2012, 02:19 PM
looks great!

groundpound4200
03-19-2012, 02:42 PM
Does someone have a link to the theory behind this?

Why So Cereal?
03-19-2012, 05:02 PM
Does someone have a link to the theory behind this?

I got a bit of info from here :Improve Your Soundstage for $2 - DIYMA.com - Scientific Car Audio - Truth in Sound Quality (http://www.diymobileaudio.com/forum/diyma-sq-forum-technical-advanced/65061-improve-your-soundstage-%242.html)

Then, I just did some reading up on diffraction, diffusion, and reflections from random articles and books in my local Books-A-Million.

groundpound4200
03-19-2012, 06:02 PM
sweet.... will read after work. Thanks

5.3bowtie
03-23-2012, 09:51 PM
Thought I would share what I did on my 2002 Chevy Silverado today. I decided to go with the pvc caps because I dont have the right tools for the wood spheres. I also used the swivel mounts that were linked a few pages back in this thread. When using these swivel mounts there are a couple of things to note. First, the swivel is not very tight so I added an o-ring to shim the joint so that it would hold the weight of the tweeter. Second, the largest gauge wire that can be fit through the joint is probably 22 ga. I used 24 ga. for mine. Third, a 1/2 inch drill bit is about the right size to be able to start the joint by hand and then tghten it up with a wrench.

Well on to the pics. The A-pillar panels will be wrapped with marine vynal to cover up the holes from the previous install.

http://i199.photobucket.com/albums/aa312/53bowtie_2002/0323121738a.jpg

http://i199.photobucket.com/albums/aa312/53bowtie_2002/0323121738.jpg

http://i199.photobucket.com/albums/aa312/53bowtie_2002/0323121737.jpg

http://i199.photobucket.com/albums/aa312/53bowtie_2002/0323121738b.jpg

Why So Cereal?
03-23-2012, 09:59 PM
I need to add something to help my "nipps" hold the tweeter weight too. I might be looking to change tweets soon too and hoping my spheres will work for new tweets.

sigis
03-28-2012, 09:53 PM
Is there a reason why you'd not just mount these on the dash and aim them where you'd like. Maybe closer to where the post meets the dash so they are semi hidden.

whitedragon551
03-28-2012, 10:05 PM
Is there a reason why you'd not just mount these on the dash and aim them where you'd like. Maybe closer to where the post meets the dash so they are semi hidden.

Plenty of explanations throughout this thread.

keep_hope_alive
03-29-2012, 02:14 PM
i was thinking about adding a set screw (recessed hex) to hold the swivel in place.

keep_hope_alive
05-06-2012, 09:25 PM
not spheres, because the ES-010 won't work in spheres. but here is a cup design. 2003 Jeep Grand Cherokee. The apillar handle reduces locations there.

angle from sail panel to C-pillar is 40 degrees. that is the aiming position i am going for.

final result (painted to match vehicle)
http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/CDTtweeters009.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/CDTtweeters007.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/CDTtweeters006.jpg

to hold the tweeters, i used closed cell foam, works great. they are rotatable, removable, but will stay put.

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/CDTtweeters005.jpg

solder and heat shrink on tweeter terminals
http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/CDTtweeters002.jpg

keep_hope_alive
05-06-2012, 09:28 PM
how i got a 40 deg angle
http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/JeepLaradoTweeters1002.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/JeepLaradoTweeters1003.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/JeepLaradoTweeters1006.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/JeepLaradoTweeters1010.jpg

in a vehicle similar to JEEPWJ4.7
http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/JeepLaradoTweeters007.jpg

http://i38.photobucket.com/albums/e128/phat_funky_beats/2003%20Jeep%20Tweeters/JeepLaradoTweeters012.jpg

splwj47
05-06-2012, 09:30 PM
beauty man cant wait to get these in my jeep :)

keep_hope_alive
05-06-2012, 09:41 PM
beauty man cant wait to get these in my jeep :)

i'm happy with them. i'll mail them on monday.

the angle mounts will have to wait. i'll just cut a 1-1/2" PVC coupler (same O.D. and I.D. as the caps) at a 40 deg angle with my miter saw. but i didn't get to the store this weekend. so i'll mail them separately, if you are still interested. plus, you can verify the color first.

keep_hope_alive
05-06-2012, 09:47 PM
the reason i chose this location and angle (even though i commonly don't like sail panels) is three-fold
1. the path length is almost identical to the woofers. simplifies T/A
2. the owner wanted a single-seat car with detail highs. he will need to attenuate the driver tweeter to properly place the sound stage.
3. angle and stem length should help with sound stage overall. should be wide and properly centered (with some T/A and level setting).

i would not use these locations for a two-seat car.

splwj47
05-06-2012, 09:56 PM
i'm happy with them. i'll mail them on monday.

the angle mounts will have to wait. i'll just cut a 1-1/2" PVC coupler (same O.D. and I.D. as the caps) at a 40 deg angle with my miter saw. but i didn't get to the store this weekend. so i'll mail them separately, if you are still interested. plus, you can verify the color first.

sounds good to me man

husker77
05-07-2012, 04:30 PM
I hope this isn't to dumb of a question, but do they need to be spaced so far from the sail panel to be effective? They look kinda weird to me sitting out so far.

keep_hope_alive
05-08-2012, 11:43 PM
yes. the point is to reduce diffraction - which is a group of early reflections. having a tweeter close to a reflecting plane or edge is what we are trying to avoid.

closer in and they are much less effective. what looks good and what sounds good are rarely the same

The_Grimy_One
06-10-2012, 03:39 PM
Hey keep_hope_alive
I am working on buying a set now. Have no idea what I am gonna end up getting, BUT I am down to send you my tweets and my pillars if you would really make some spheres. I want to do some, but really dont have the tools to do it properly.

Oh, and currently may pick up an older Polk MOMO set.

Other sets I am looking at are the CXS Image Dynamics, Kicker QS, the new Polk MOMO. But if I could hustle up the money, I would love to run the CDT 3 ways, but would need even more fabricating for the midrange.

keep_hope_alive
06-10-2012, 04:42 PM
some tweeters wont mount in spheres. the CDT ES-010 is an example, the grill won't come off and it's too large. had to make PVC caps for it.

you want a tweeter that can be taken down to just the grill and housing, no extra flanges. no larger than 1-1/8" diameter. some tweeters come with several mounting cups and flanges for surface or flush mounting. those are the best kind since the housing can be removed. you want a tweeter with an integral grill. grill-less tweeters require additional fabrication.

The_Grimy_One
06-10-2012, 07:22 PM
some tweeters wont mount in spheres. the CDT ES-010 is an example, the grill won't come off and it's too large. had to make PVC caps for it.

you want a tweeter that can be taken down to just the grill and housing, no extra flanges. no larger than 1-1/8" diameter. some tweeters come with several mounting cups and flanges for surface or flush mounting. those are the best kind since the housing can be removed. you want a tweeter with an integral grill. grill-less tweeters require additional fabrication.
Oh dang, thats a lot of restrictions!
Any idea if these will work?
Polk Audio MOMO MM6 6 3/4 Championship Performance component speakers | eBay (http://www.ebay.com/itm/190687125988?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649)

keep_hope_alive
06-10-2012, 09:33 PM
yep, those Momo tweeters will be perfect for spheres.

The_Grimy_One
06-10-2012, 09:57 PM
yep, those Momo tweeters will be perfect for spheres.

I will try to hustle them :)

Im assuming this are a no go. Lol. --> Kicker QS65.2 (09QS65.2) 6.5" QS-Series Component Car Speakers (http://www.sonicelectronix.com/item_19433_Kicker-QS65.2-09QS65.2.html)
--> WoofersEtc.com - CXS64 V2 - Image Dynamics 6.5" 4 Ohm Component System (http://www.woofersetc.com/p-7174-cxs64-v2-image-dynamics-65-4-ohm-component-system.aspx)
--> http://www.ebay.com/itm/360456441356?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

keep_hope_alive
06-11-2012, 02:09 AM
the other polk look to be removable from the mount.

the Image Dynamic tweeters are big. the spheres would be large.

the kickers are a no-go. that is a stupid design.

Iosias
07-19-2012, 04:31 PM
Think Nylon or Delrin as a material would work well?

keep_hope_alive
07-19-2012, 09:57 PM
Think Nylon or Delrin as a material would work well?

as a replacement for wood? sure, there is nothing magical about using solid wood other than it is easy to work with, finishes nice, and is free of resonance.

i would love to see a company offer a Delrin sphere made for their tweeter.

Iosias
07-25-2012, 09:26 PM
Not sure if the tweeters I have will benefit Alot or work well in a spere but I had one of our engineers do a solid works design so were gonna try and print one of these spheres out. 3d printer does have its uses.

keep_hope_alive
07-26-2012, 03:26 PM
Not sure if the tweeters I have will benefit Alot or work well in a spere but I had one of our engineers do a solid works design so were gonna try and print one of these spheres out. 3d printer does have its uses.

That is awesome!

Iosias
07-26-2012, 03:43 PM
If it doesn't look or work that well im gonna try and find a source of cheap ball stock and have our machinist just mill some out lol.

Iosias
07-27-2012, 10:04 PM
This is the basic design, I can adjust it for any size tweeter and have it printed out or possible milled out in a cnc depending on cost.

http://i1170.photobucket.com/albums/r540/IosiasLKC/Tweeter.jpg

Any recommended change or something I should consider ?

keep_hope_alive
07-29-2012, 10:00 AM
Depends on the tweeter. If it has a lip, you want a matching lip. Each tweeter mounts differently. Looks good. It would be nice to see a bit more surface area around the tweeter. I have some paper mâché eggs that I will experiment with also.

Kingstroker
12-01-2012, 12:57 PM
in general terms, is aiming toward the head rest on each side better imaging than aiming across the dash?

keep_hope_alive
12-01-2012, 01:21 PM
aiming at the rear C-pillar (opposite side) for each tends to work out well - result is a wider sound stage than aiming at head rests.

you'll need to attenuate the nearest tweeter if they are more on-axis.

husker77
12-01-2012, 11:30 PM
you'll need to attenuate the nearest tweeter if they are more on-axis.

Ok I've done some google and searching, but what is the difference btw on-axis and off-axis? And what do you mean attenuate?

keep_hope_alive
12-02-2012, 01:59 AM
imagine a laser beam coming out of the center of a tweeter (or speaker). that is the axis. you are on the axis (tweeter pointed at you) it is on-axis. if you are not (tweeter pointed away from you) you are said to be off-axis. being off-axis should be further clarified with an angle (in degrees) with 90 degrees being perpendicular. this factors into the polar response of the speaker/tweeter at each frequency. polar plots are useful in determining what you will hear as you move from being in front of a speaker/tweeter to what you hear when it is pointed away from you.

attenuate is just a fancy word for "turn it down". decrease level/volume of the nearest tweeter and the sound stage will become more centered (since we localize sounds above 3kHz based on intensity (volume) and not on pathlength).

thanks for asking for clarification. i'm sure it will help other as well.

Bettr n' Revrse
12-02-2012, 02:13 AM
I'm not sure if I am gunna aim mine at the seats they closest to or the opposite

keep_hope_alive
12-02-2012, 09:51 AM
The :intent is for each person to have the left tweeter in the left year and the right tweeter in the right ear.

cablguy184
12-06-2012, 04:16 AM
Gee Wilikers !!!!!
I just spent about an hour going through this thread ... Excellent !!!
There is plenty of very cool ideas on here for tweeter installations !!!

Thank you

TheUnderFighter
12-06-2012, 05:33 AM
Here's some well overdue pics of the spheres KHA made for. Fortunately, I had the same tweeters as him, so measurements were easy! I just had to give him angles.

http://sphotos-a.xx.fbcdn.net/hphotos-ash4/488150_10151165843604662_2111884905_n.jpg

http://sphotos-a.xx.fbcdn.net/hphotos-snc7/391616_10151165843664662_2020338335_n.jpg

http://sphotos-b.xx.fbcdn.net/hphotos-ash4/293776_10151218916384662_1494866551_n.jpg

http://sphotos-a.xx.fbcdn.net/hphotos-ash4/320342_10151218916484662_2112320958_n.jpg

http://sphotos-b.xx.fbcdn.net/hphotos-snc6/281528_10151218908214662_878086446_n.jpg

http://sphotos-b.xx.fbcdn.net/hphotos-prn1/47412_10151218908389662_429058116_n.jpg

TheUnderFighter
12-06-2012, 05:35 AM
I used Rustoleum textured spray paint, and it matched my panels very well.

cablguy184
12-06-2012, 05:53 AM
Very Nice

husker77
12-06-2012, 06:25 AM
keep_hope_alive; is the goal to have the paths cross at a certain point in the vehicle? Part of the reason I ask is that 2 of the vehicles I am thinking of doing this on are pickups, so no c pillar to aim at. I know I can just guesstimate, and am probably over thinking it.

cablguy184
12-06-2012, 09:40 AM
I'm thinking that what makes these things so interesting is that you can adjust them at practically any given time without modification ...
This would make perfect sence when tuning for Sound Quality. Wether it be one seat judging or 2 seat judging ... east adjustments ...

I would suggest to start out by aiming them to your interior cab light ... and adjust from there

keep_hope_alive
12-08-2012, 05:38 AM
certainly, there is a huge benefit in having some adjustment.

i just prefer the way they sound.

InhumanAcura
12-13-2012, 04:14 PM
i dont know if anyone has said it in the past 8 pages, but you bore a hole in one of the those wooden balls in like 10 seconds with a milling bit rather than what i saw on the first few pages.

keep_hope_alive
12-14-2012, 11:05 PM
i dont know if anyone has said it in the past 8 pages, but you bore a hole in one of the those wooden balls in like 10 seconds with a milling bit rather than what i saw on the first few pages.

i use a forstner bit now. yes, much, much, much faster. :)

jdmferio13
12-16-2012, 08:06 AM
Can the vifa xt25s be taken apart like the outer ring? .Also you stated to make sure the sphere has a distance from the panel how much?I have an 08 civic si sedan with little windows I would like to try there.

keep_hope_alive
12-16-2012, 10:46 AM
Can the vifa xt25s be taken apart like the outer ring? .Also you stated to make sure the sphere has a distance from the panel how much?I have an 08 civic si sedan with little windows I would like to try there.

i've seen those and i'm not sure how easy it is to disassemble - i assume it's the same as the faceplate-less tweeters shown above. But it is probably glued.

with the xt25 and the civic windows, it pushes you towards a pod instead of a sphere. pods with smooth transitions can also sound nice.

jdmferio13
12-17-2012, 07:36 AM
So spheres would be worthless if I did them inside the windows?

keep_hope_alive
12-27-2012, 07:40 PM
So spheres would be worthless if I did them inside the windows?

not an accurate statement. spheres, by definition, exist only with a stand-off. other than that, if they are molded into a panel, they are just pods. pods with smooth transitions are still good.

iroller
08-21-2013, 04:47 AM
This all sounds great whats a good sq tweet to use that can handle some power i have tendence to play loud and blow up tweets.

keep_hope_alive
08-23-2013, 09:05 PM
This all sounds great whats a good sq tweet to use that can handle some power i have tendence to play loud and blow up tweets.

I am going to sell my German Maestro Status SV6509 components. Those inverted dome tweeters have huge neo magnets and are supposed to have good power handling despite being compact (i.e. no large faceplate). but due to the 2" outer diameter, they are more suited for PVC cups (which can also work very well). a lot of high-power tweeters are also larger.

that works opposite of sphere needs - because you want the sphere to start at the edge of the tweeter dome/surround. sphere diameter needs to be at least 2x the tweeter outside diameter to be really effective. otherwise the enclosure performs like a cylinder (still not bad).

tat2bass
08-23-2013, 09:26 PM
I am going to sell my German Maestro Status SV6509 components. Those inverted dome tweeters have huge neo magnets and are supposed to have good power handling despite being compact (i.e. no large faceplate). but due to the 2" outer diameter, they are more suited for PVC cups (which can also work very well). a lot of high-power tweeters are also larger.

that works opposite of sphere needs - because you want the sphere to start at the edge of the tweeter dome/surround. sphere diameter needs to be at least 2x the tweeter outside diameter to be really effective. otherwise the enclosure performs like a cylinder (still not bad).

How much are you thinking of selling your GM's for? PM me a price