(OT) Adding a ribbon tweeter to my speakers?

[Cal Weldon]

Could be tired phragms, weakened magnets, or even simply the midrange forward sonic character of the 604's themselves.

Agreed.

For me personally, if i were going to stick with a passive network on my 604's i'd have to strongly consider cloning the 604K network which has a MF adjustment that can be dialed back a bit. Sometimes taming the mids down a bit can increase perceived VHF output.

Was the H network the first to have both?

Do you have an EQ in system such that you can try pulling down the mids a few db in the XO frequency region?

Sometimes you just have to if you're nearfield.

Cheers.

[kinomat]

Re Adding a ribbon tweeter
Then you would no longer be a genuine 604 listener, for what its worth I would get or borrow another newer 604 crossover, yours are aged and the caps are dried out & maybe leaky,do a comparison test using pink noise source & you'll hear a high end difference. GP has a HF horn mod, which might help and they also sell a new 604 crossovers,better than the type you have, main thing is it ALTEC. (Todd White should be able to advise)

[Cal Weldon]

That's funny.

[voice of the theater]

Your video is blocked? Doesn't Don Henley have anything better to do with his spare time? Which cabs are you referring to--any pics?

[Cal Weldon]

Not nearly as boomy as the 12 footers.
<snip> I'm thinking about how to shrink my 12 footers by 3 feet .

Strange that the 12's are boomy considering the Q is going down as you get bigger.

If you want to reduce the size of the cabinet, you can always just add something to the interior to take away the volume, like bricks or wood pieces, as in a false wall or W.H.Y.

[voice of the theater]

Ok I finally did it, The G1 Ribbons should be here Wednesday, Also ordered some caps from Parts express last Thursday so they should be here in time for my 4 day weekend that starts Thursday morning.
These are the caps I ordered
2 DAYTON PMPC-1.5 1.5UF 250V PRECISION AUDIO CAPACITOR
2 DAYTON PMPC-2.0 2.0UF 250V PRECISION AUDIO CAPACITOR
2 DAYTON PMPC-3.3 3.3UF 250V PRECISION AUDIO CAPACITOR

P.S. Google is much better at finding threads than the search is. I couldn't find this thread for the life of me then I googled it and bam!! right on top.

Great! Please let us know how they sound and keep us in the loop with some pics as well.....

[juniper]

I just watched some of your videos the one with the link sounds the best to me it seems.. thanks for sharing