I have wharfedale diamond 8.1's all around and the diamond center. I am currently using a kenwood vr 507 receiver. I was looking at replacing it with either the new pioneer 812 or 912 or maybee one of the lower priced yamaha's. I am wondering if anyone thinks it will be worth it or if this is not going to be a worth while upgrade. Something about the kenwoods sound just does not appeal to me. Any other suggestions are welcome. I am looking for something around $350 or less. I know not much , but not much money around here right now.