Need advise deciding on speakers for marantz 603. Initially was going for the MA bx2, but now have doubts as found some good offers on Focal 714v and Quad 12l2. They are for my living room 25m and I listen to all kinds of music but not at very high volumes. Is the marantz 603 powerful enough to drive the focal 714v or Quad 12l2? I have no intention of using subwoofer or central speaker. Thanks in advance for any inputs.