604B - Can I - Should I fix this?

[mattvandyke]

Yes using the same drawings for my project. I've already cut the some of the MDF and will start here in the next week or two.

[omodo]

Just a thought, but if the other driver still has the original cone, and this one has been reconed (poorly) with an accordion edged cone - from looking at the photos, why not have it reconed with the correct half-roll surround cone, you'll be able to fix the multicell orientation and the two drivers will then be much closer together in measured performance, well at least Fs.. The older style cones are on eBay from time to time, if not maybe GPA could help with a source

[mattvandyke]

Great idea, I will call Bill on early next week and see what GPA might have in stock.

[cradeldorf]

Just a thought, but if the other driver still has the original cone, and this one has been reconed (poorly) with an accordion edged cone - from looking at the photos, why not have it reconed with the correct half-roll surround cone, you'll be able to fix the multicell orientation and the two drivers will then be much closer together in measured performance, well at least Fs.. The older style cones are on eBay from time to time, if not maybe GPA could help with a source

The guy on ebay only list's them as 515 cones because he kept getting hate mail from 604 owners that thought they knew everything. They are the same cone as the half round surrounds, Although I won't even get close to saying how exactly they are to an original cone, But If I was gonna stick with the B's I'd try to get them both in the same ball park as far as sounding the same otherwise your gonna be all over the place trying to get the right sound from the total system.

515 cones
15" Paper Cones Speaker Parts Altec 515 | eBay

[mattvandyke]

Thanks cradeldorf for the link. I looked for 604 paper cones but couldn't find them. Back from traveling and will see what I can get done this week.