I am planing on upgrading the stock non bose system on my car but i am not on planning on going all out. I am just trying to get a cleaner, better sounding system for my car. Was thinking about going with Infinity Kappa Perfect up front and Reference in the rear as well as a free air image dynamic 10v.3 sub. My question pertains to the amps. I had a stereo place recommend hifonics amps to me as a low cost option for powering the above speakers. Its is the z800 5channel. Does anybody have experience with hifonics, IF so can u commne ton quality for the price. I was also looking at the soundstream picasso 5.700 amp.

On another note, can anyone tell me if the Infinity Kappa Perfect is better than a MB Quart Reference RCE216. Was trying to decide between the two. Thanks for any input