Hey thanks for the replies. I played my acoustic 320 throught the cab last night at practice and it sounded great, it is still a little buzzy but its not intrusive and like I said the cab sound loud and full. Other posts here have indicated that some of the altec cabs were 4 ohms. This would make sense since it sounded much louder than it should at 8 ohms. As for the head, I'll check the suggestions and if I have no luck then Ill send it to a tech.
Thanks again