My RS52's got put through the grist mill.

[rudyjakubin]

Mark has just finished testing my RS52's and here is his preliminary review;
<A HREF="http://206.13.113.199/ncdiyaudio/mark/blog.htm">http://206.13.113.199/ncdiyaudio/mark/blog.htm</A>

It still looks like it won't be until July That I can start on this RS52 project in earnest. Using the DA175's for bass and the Dayton 3/4" Neo for the tweet.
Errrr.

[markk]

Hi Rudy,

Yes, your dome turned out to test very nicely. I'll try to sneak in a quick test of the other one (I only had time for 1 today) before I send them back.

Not quite sure you could mate it to a fifteen though. Still, you could experiment with a 10 or 12" Kind of a nifty reissue of an old school 12" three way with dome.

Anyway, at $35 or so a bargain...

Mark

[todd_w]

> Hi Rudy,

> Yes, your dome turned out to test very
> nicely. I'll try to sneak in a quick test of
> the other one (I only had time for 1 today)
> before I send them back.

> Not quite sure you could mate it to a
> fifteen though. Still, you could experiment
> with a 10 or 12" Kind of a nifty
> reissue of an old school 12" three way
> with dome.

> Anyway, at $35 or so a bargain...

> Mark

Most excellent, Mark and Rudy!

I have a three way modeled and am waiting for the torture test results.

The tentative drivers are the RS52 of course, 2-RS225s and a 27TBFC/G.

I need to work on the XO some more as there is a really large inductor value that I'd rather not have to buy even a couple of; now that Cu is a precious metal!

Thanks again guys,

todd

[dwk]

> The tentative drivers are the RS52 of
> course, 2-RS225s and a 27TBFC/G.

I'm curious - why the 27TBFC/G? The larger flange will push the xover down due to spacing, and IMHO undermine one of the strong points of the RS52 - top end extension. I'd think that using a small-flange neo like the XT25SC50, 27TAFCN(?) or even ND20 would be an approach that let you push the RS52 xover up to 3.5-4k. With a little machining of the RS52 faceplate you could even get 4.5.

[todd_w]

> I'm curious - why the 27TBFC/G? The larger
> flange will push the xover down due to
> spacing, and IMHO undermine one of the
> strong points of the RS52 - top end
> extension. I'd think that using a
> small-flange neo like the XT25SC50,
> 27TAFCN(?) or even ND20 would be an approach
> that let you push the RS52 xover up to
> 3.5-4k. With a little machining of the RS52
> faceplate you could even get 4.5.

I know I won't be using all that the RS52 is capable of 'range-wise,'. It's dynamics and SQ I'm trying to test.

I thought about all of the above(save for the Vifa). I have modeled other tweeters, so nothing is set in stone.

I know the Seas very well, and I have an almost drop-in XO for it. I'd like to be testing the midrange, and I think going with a tweeter that I'm well acquainted with will allow me to do without any more bias than I'm likely to bring to this test.

BTW, no reason to be humble. Your points are valid, and well received.

If this goes well, I'll experiment further.

[Pete Schumacher ®]

You know the link . . .