This guy says his
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This guy says his
I've got no idea on your question, but he's done Altec recones before, and I think has used GPA parts....... Although, maybe not exclusively. Dgwojo (or whatever his screen name is) I believe used him. I'm under the impression that he knows what he's doing, but it's been so long since I've heard details from those that have had work done by him, that I can't relay much anymore.
One of these days I plan to have him take a look at an 8" Radian coax.
Yes, there are at least a couple sources for cones with paper hinges as well as phenolic spiders(for the really old ones) to fit Altec.Quote:
Is this possible?
Assuming you're referring to the early paper hinged cones, No, not AFAIK, original cones are no longer made and have been out of production for a long time.Quote:
Can a 604 be reconed back to the original cone?
The aftermarket cones like you've linked to are the only option if you want to keep the original appearance and probably close to original sonic character. I'd recommend reconing in pairs. You have an excellent reconer in your neck of the woods, he'll do some stuff with Altecs that you'll be hard pressed to get done elsewhere, including installing early style aftermarket cones.
As easy as squeezing the adhesive out of the tube............................ after you've established the correct center height, and have the former properly shimmed in the gap.Quote:
I wonder how hard it is to connect the voice coil to the cone?
I would strongly advise having any worthwhile Altec reconed by a competent speaker tech, it will always be the cheapest way out of a re-cone.
They always told dealers in the 70's the 604 was 515/802 based and the 605 was 416/806 based. Honestly never cared enough to verify it all, so caveats apply.
Remember, these are just the electro-acoustic parameters of the driver itself. Those numbers don't tell you how it will actually perform in any particular load/system.Quote:
Originally Posted by cradeldorf
Take a look back historically at how those woofers were implemented. To run a 515 above 500hz or a 416 above 800hz was a rare exception, not a rule of practice. Indeed, running those woofers higher comes with significant caveats.
At 1600-2000hz a 515's dispersion becomes quite narrow and beamy. But, for near field monitoring from a dedicated listening position(exactly how 604's were used), the beaming remains within acceptable limits giving the 604 a pretty amazing presentation overall.
Another thing to remember with the 604 is that the size of the HF horn is what dictates the XO frequency far more than the woofer's ability. Again, another amazing wonder that the 604 plays as well as it does as it's horn is theoretically way to small to be crossed where it is. The whole thing is a big bundle of compromises that just happen to work together pretty magically.
Lot of truth in basis here since the moving assemblies and much of the motor parts are the same.Quote:
They always told dealers in the 70's the 604 was 515/802 based and the 605 was 416/806 based. Honestly never cared enough to verify it all, so caveats apply.
If it's the same gentleman that I'm thinking of.Dave (Dgwojo) said he went to herculean efforts to save his original cones by replacing the cloth surrounds on the original cones on a pair of 416's he had. A service you can't get everywhere.Quote:
Originally Posted by Audio_by_Goodwill
What's odd to me is there are no cone#'s on those cones.No way to trace the manufacturer.
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Originally Posted by Altec Best
I was thinking 515s, but he may have had both done at one point or another.
I noticed that too.Quote:
What's odd to me is there are no cone#'s on those cones.No way to trace the manufacturer.
Quote:
Originally Posted by Audio_by_Goodwill
I know. I was just stating what I had discussed this with Dave.And it was a pair of 416's we talked about,he saved the original cones.I think it is the same guy.