Hi there…I currently have a Pioneer SX-770 receiver powering Kef K140 2 way speakers. I am planning to get a set of Kef Q4 3 way speakers. Could someone with more knowledge advise if it will be worthwhile changing and if my receiver has enough power for the Q4s? Thanks!!
Adding to this, vertical directivity is often especially bad around the crossover regions due to phase shifts from crossovers. So speakers positioned higher or lower than the listener's ears would sound particularly bad. Elevating my floor standing speakers so that the drivers are at the typical ear height while listening dramatically changed the sound for the better.