Bringing 828 cabs up to snuff...

[alancohen]

Also, as far as the port, I've read 6" is in the right range? But I don't have a 6" hole saw and prefer not to drop $45 on one.

I do have a 4-1/4" hole saw, and I think 2 ports this size yield about the same area as a 6". But I don't have/can't find material to make 4-1/4" port tubes. I do have 2" thick-walled cardboard tubes. I think 9 2" holes would yield the same area.

And hears an AK thread on upgrading the N801-8A crossover: http://www.audiokarma.org/forums/showthread.php?t=85192