I am new to "hi end" audio equipment and the only thing that works in my favor at the moment is my good ears. I would really appreciate some help here. I ended up liking KEF XQ5 for the sound and the price but I am a bit confused with the receiver choices. XQ5s are rated at 150Watt, does it mean that the receiver ought to have matching output? B&K AVR507 looks like the right choice but I am not really sure and it is kind of pricy. I am going to use the system primarily for music listening driving it from Pioneer Elite DV-59AVI. Thank you in advance.