Gpa 288h

[Steve Mac]

Well....what do you all think? I just placed an order for a pair of these drivers from Bill at GPA. I got a pair of 511E horns and am excited. Right now I have 808a's on 511b's with aluminum frams and the loading caps removed(bug screens too).

I can't even find these drivers for sale anywhere. Anico+radial waveguide+288+aluminum frams. And when they pop up they cost so much with no warranty and probably need to be restored. Why Bill won't market these aggressively is beyond me. I thought he said he had two pair left and then would have to order more alnico. But he didn't want to buy a batch and have em hang around...which is why he's not pushing them....but then that's why he's not making more of em! Anyway, I don't want to wait around until someone finds out this secret.

getting 8 ohm vc's....this is what they look like....
http://www.superbadcat.com/images/288_front.jpg
http://www.superbadcat.com/images/288_rear.jpg

[Panomaniac]

Do the 288h CDs fit the 511 horn? I thought the throat size was different. (1" vs. 1.4")
Are there different sizes in the 288 and 511?

[Cal Weldon]

Michael,

I believe the 511E is a 1.4"

As far as I know, that's the only difference from a 511B.

[charlesmc75]

These look great, how much is he asking for them? pm me.

[Panomaniac]

I believe the 511E is a 1.4"

Ahhh..... learn something new every day! I had not seen 1.4" 511's. Good to know they exist. Thanks Cal!

[lowpoke]

Steve Mac,

I'd be keen to hear your findings on the comparison to your 808's, as that's what I have at the moment too (808-8B's on 511B's). I'm assuming it will be significant given the reputation these drivers have.

BTW: There are no prices on GPA's website, so do you mind me asking what sort of investment is required to own a pair of the 'new school' 288's?

[Steve Mac]

The drivers are in transit!
But I have a very difficult job and am looking for advice before proceeding.
I have 2 511e horns but the weld job was messy...
so I need to smooth them out....here's a look at the mess
http://www.superbadcat.com/images/hole1.jpg
http://www.superbadcat.com/images/hole2.jpg

after grinding...with what?...body filler?
Also...it's not so much the initial inside smoothing that scares me so much as
where the expansion shifts aggressively from the vertical to the horizontal dimension.
This must be a perfect job....I only wish I was perfect.

[Altec Best]

I forgot about this thread.Thanks Earl for bringing it back.Steve You out there somewhere ? This was 2 years ago and am very interested at your final tweaks for this setup.As I'm in the middle now of setting up a pair of 288's with the 511E's on my project.Any tips,adjustments,etc.... Would be most appreciated ! Thanks !