Gosh Wayne, I bet that kind of talk impresses all the girls!!!! Remember I have a Oklhoma public education!!! Please sir, again and I'm slow---How can I find out if a speaker will work that has a load of 4 Ohms?? Do I need to see the responds curves? It says that the Arro is rated at 88db and a load of 4 Ohms---not a good choice? Sendors are 88db's and 8 Ohms---nominal to 6Ohms--better---I still don't understand how to know if a speaker will do well on tubes---and the other thing sir, more power ---what if I throw more watts are the speaker???---- JD