I want to know the price for Clarion APX480M 640W 4/3/2-Channel Power Amplifier as I have heard and checked its quality in my friend's car.... but its seems to me that he have purchased it a bit costly.... I was searching for the this amplifier and found on several sites but comparing all of them I found planetonline.com site is giving the best deal for it... and its for $183.97.... if anyone can tell me from where I can get the lower price then this....