Turned my own Tweeter faceplates to see if they look any better...

[kingdaddy]

Thought I’d try making some new faceplates for my Vifa XT’s, they turned out pretty good and are about 1/8’ smaller diameter so they will allow a little more tilt from the Mid/woofer modules. These were pretty tough to make, I had to do 2 prototypes to get the back right. The back is far more intricate than the front, they have to have a trough and a narrow cone shaped throat to fit properly. I have no idea if they will look any good once there installed, but it was great experience making them.

I’ll have some photos of them installed soon, right now I’m trying some Usher 9950 in place of the XT’s for some extended listening tests while I rework the Vifa’s.

[kingdaddy]

Another view showing the throat, the back is a mirror image and narrows to about 1/16".

[kingdaddy]

Here is the backside.

[speaker]

Nice turning!

I'm inspired to get my pre-war Delta up & running.

What kind of lathe do you have?

speaker

[kingdaddy]

Just a cheep Ridgid 14", but I'm quite the novice so it'll do for some time.

[KBK]

What I really want to know, is how did you get the bloody vifa's apart without destroying them? I've taken a quick shot at it, but they seem to be glued together.. ie, no method of changing out the 'dome'.

[kingdaddy]

The faceplate comes off very easy, just remove the 3 torx screws near the cone on the faceplate. The rest is a little harder, it helps to have a bad one so you can experiment, but these are very tough and hard to damage. First you need to remove the Phase Plug by breaking the glue bond between the Phase plug and the cone, you can do this with your fingernail if your careful. Then there are two glue spots that hold the cone/cap and VC assembly to the motor, just cut through the glue spots between the magnet and plastic cap along the sides with an xacto knife and carefully separate the two halves. Another way to do this without removing the Phase Plug is just pull it apart and the Phase Plug will come loose from the back pole piece plastic thinge, you think it will tear the cone but it wont, this cone is nearly indestructible. I've got several pictures of the innards that might help anyone needing to take these tweeters apart.

[Jim85IROC]

I'd definately be interrested in those pics if you're willing to share them.

I've been toying with the idea of removing the front plate of whatever tweeters I decide on so that I can cut them to fit tightly up against the woofer basket.

[kingdaddy]

I think I’ve already posted several pictures of the internal components of the Vifa XT tweeter about a year ago, however this wont do you any good for other tweeters as they are all different. Also if you just want to replace the faceplate then there is no need to take the tweeter apart, just remove the faceplate. I’ll keep looking for the pictures though just in case anyone is interested.

Here is one I found.

[454Casull]

That star-shaped thing looks interesting...