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Very elegant looking. Nice!

I hope they go well for you. I like the way they look, cosmetically. Have you thought about doing a backing ring as well (like Larry's) to make a 'sandwich' around the particle board? I think that...

Schurkey, have you got them installed yet?

Looking very clean & classy. Glad to see another SRS 2 given a new lease on life. Nice!

I can hear them from 6 inches away just fine! haha ...moment of levity...

Seriously though, you're right, additional stress will concentrate there....a little bit. The rest of it is substantial...

This was my thought too, Larry. That's why I designed a precise double depth, to apply pressure evenly to both the surround and the basket (one gets compressed, the other gets compressed the exact...

I like this approach. I've drawn up a similar thing in some CNC design software, for the day that I work on another pair of vintage Polk's (like my 5 pairs). The ones I drew up have a double depth,...

I'll send you a Private Message in a few days when I come up with a list.

Geoff

You have an advantage here, in that the 3.1tl's crossover is not complicated and has relatively few parts (less cost). And those parts are either standard values, or are easy (fairly inexpensive) to...

These are the LSi7's. This is about what $800 worth of parts and materials looks like (that includes 4 new drivers).
...

This is actually kind of a tough question. It might be easier to ask, "What are the speakers worth to me?" and go from there. If you want a very, very good upgrade (a night-and-day "I didn't know...

Well, it's nice to know there's still a few folks out there who remember me- thanks, guys!

....although I will be posting more projects in the future, obviously. :) (There are currently 7 pairs...

Sounds good. Just get ahold of me around the end of January; I am up to the neck in projects and an overseas trip until then. Start thinking about which circuit boards you want to use (stock,...

If you are willing to wait until after January, I will be happy to guide you through the crossover work.

Geoff

I'll echo a few good impressions...

The Gobel's were great. The bending wave driver is intriguing, and I thought the bass section was beautifully done.

The Lansche/Ypsilon system was...

I'll be there, as always. Roger (the guy I worked on the RTA12C's for) will be there too.

G~

This may or may not be instructional. Since you have me curious, I did a very quick & dirty simulation of two different baffles. The first, a pseudo-RTA12 on a tall stand (in other words, below it is...

Yes, that's it exactly. Don't worry about what we 'say' is right, or what we tell you to 'do' or 'don't do'; do what the music says is correct. Experiment, come up with your own answers, do your...

I'm assuming you're talking about the speakers I worked on for Roger. On those, 3 walls were covered with S.B., side, side, and back, if I remember right. It was not the 3-layer stuff, just one layer...

I will say that George's woodwork on those endcaps is absolutely gorgeous; you will be very hard-pressed to find better (that's coming from a fairly picky guy:smile:). They alone make the asking...

Speakers and cars.....the newer they are, the harder they are to work on (read "DIY").:cheesygrin:

I've heard these, the ones that I did a while back.
http://www.polkaudio.com/forums/showthread.php?129622-LSi7-s-Refurb-ed-and-Upgraded-w-pictures

Actually, I think you probably replied...

Glad everyone likes them, especially George. He is going to have a very, very nice looking pair of speakers when his walnut woodworking is done.

I am thinking, the next Seattle GTG.....George's...

I will just tell folks a couple of brief things about these, for those who are interested....

The acrylic backing plate for the interconnect binding post has a routed channel, into which the two...

I think he's looking at the 5 original Polk binding posts that are on each board. These accept 5/16" (I think that's what it was) ring terminals. So, the hookup for the boards is to use two ring...