In choosing loudspeakers, and I am loudspeaker collector, there are different approaches to design and different transducers. You have the average dynamic designs using conventional drivers such as woofer, dome tweeters etc and you have omnidirectional, omnipolar, bipolar,dipolar, planar,push-pull planars, electrostatics, linsource or array or a combination of both, there's also horns and coaxials. There are boxed cabinet designs and flat panel designs to various shapes and materials including the use of aircraft aluminum like magico for example. Not all speakers are the same nor do they sound the same and very few can perform for various music recordings. Some are better for certain type of music, some need proper room treatment to sound its best. Some need additional subwoofer or bass drivers to perform at full range. People are going to be bias in recommending specific speakers for their choice. some speakers are best suited for home theater, some for music only and some a combination of both. It is not an easy task finding speaker that will suit your needs for every occasion. In amplifier designs there are many as well and it's a matter of taste. You might like the soft sound of tubes or the high power of solid state and there are different types of amplifier regarding both tube and solid state. Some are hybrids which are a combination of both the same goes for preamp, cd players. There is also the possiblity of desiring to TWEAK your system with various tweaks such as sound processors, room treatments, vibration control, resonance control and various other tweaks. This hobby is a never ending search for music nirvana. You are going to come across people and sellers who are going to claim THEIR music nirvana, but it is up to you to find what sounds good to your ears.