I am sorry if this has been beaten to death already. I am new the Bass Forum. I am going to purchase a a new Ashdown EVO500 or 900 head this week. I have played them and really like the reponse and flexibility. I really would like to know from other bass professionals if I should be looking at some other options. Not 'better' choices but equal choices. I have looked at the Peavey, and Ampeg as well as Eden stuff but there are too many models all around the same price. Solid State is fine, Tube is fine. A hybrid like the Aguilar is also fine. Great tone is the goal of course. Musical style is primarily R&B and Rock. Basses vary. Thank you very much for any suggestion. Cheers.