Port Size for Altec 612C

High Efficiency Speaker Asylum

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I'm thinking about having a pair of 612c cabinets built for my 604-8H-IIIs and I'm questioning whether or not the port size recommended by Altec in Altec Notes AN #5 for a 604-8K (48.68 sq. in./ 6 1/4" X 7 3/4") is correct for my speakers. Any thoughts?
Thanks!
M

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Parts Connexion

Topic - Port Size for Altec 612C - Steelhead Mike 12:21:49 06/17/24 (4)

RE: Port Size for Altec 612C - GM 23:56:33 06/30/24 (0)

RE: Port Size for Altec 612C - rogerh113 07:22:22 06/18/24 (0)

RE: Port Size for Altec 612C - Bill Fitzmaurice 13:16:09 06/17/24 (1)

RE: Port Size for Altec 612C - Steelhead Mike 04:59:03 06/18/24 (0)

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