Speakers are certainly proportionatly one of the most significant changes--but I'm one that believes the room is 90 percent of the battle. How many people have moved from either a good environment to a mediocre one or vice versa. Same equipment, but different room--it can really make or break a system even more so than the speakers. (of course my opinion is an occupational hazard--for those that don't know what I mean visit: Rives Audio , in particular go to the listening room for some tips on what can make or break a room.
SPeakers 90% of your sound
After "experimenting" with various cables,interconnects,conditioners,power cords, tube amps, and digital sources...I have come to this conclusion...the sound from my speakers was not drastically altered and at best marginally improved...with this in mind...I am glad I allocated the majority of my funds towards speakers and speaker stands...I have not thrown in a TT to the mix...which is my last and latest project...I am sure there are those who will disagree...but this is my findings at this time...any thoughts? That last 10% improvement will cost me what my entire system costs already....