Altec 604 E reconing options.

[bowtie427ss]

All the info you seek is available for the cost of a long distance phone call to Bill or Steve at GPA.

FWIW, i have series III cones in my 604-8G's, i think they're lighter/faster than originals.

Don't stock E's and G's use the same cone?

I think GPA still has/sources E/G style cones.

Call and get the last word from those folks.

[charly1944]

thanks for your reply.If i understand well you are enjoying your 604-8 G with a series III woofer reconing.Did you ever have the opportunityto compare your reconed 604-8 G with the GPA 604-8-H III and if yes which one did you like best when it comes to voices reproduction.

[Altec Best]

Hello to all of you,
I am very pleased to be a new member of the Altec User's Board.Thanks a lot for your help.
Charles.

Hello Charles ! Welcome to the board ! Hope you find all the info you need to help keep those nice drivers still thumping.I agree with going to GPA for all your Altec parts and repairs.Stay away from after market stuff on eBay and the like.IMHO you will be just throwing good money after BAD !!!.Bill makes some very nice replacement diaphragms.They are considered Altec factory replacements.He bought all the tooling from the Altec plant when they closed

FWIW, i have series III cones in my 604-8G's, i think they're lighter/faster than originals.

My 604-8G's still have their pristine 23739-4 cones in them.That sound real nice.Fast, but not as fast as a 416 me thinks.Now with Bills cones/#'s I'm not as familiar with the different cones he has except for the 416's I had re-coned that sound great.So I don't understand some of the folks who don't like the new cones from GPA.I tried to A/B them with my M19 416's and I think the re-mag/re-cones sound a little better actually.But it was very hard to even distinguish a difference IMO.

[charly1944]

Thanks a lot for your answer.I will send the driver to GPA,if i get it, since it looks like the more consistent recommendation.Probably a lot of similar concerns and questions could be once for all adressed if measures(on and off axis freq responses+ directivity index) and listening(in a room properly treated) comparison performed in serious and fair conditions and published for the GPA 604 HII,III and few 604 vintage models.But this may imply more work than i imagine.
Since i am proposed one 604 E only and would have to acquire a second one separately,will it be difficult to match the second one with the first or is it a relatively easy undertaking with the help of GPA?I will call Bill on monday but it may be too late for the opportunity i have.Few other people are interested in the driver.