Different will always have an impact on you, good or bad. But, and this is important, we are always impressed in the short-run by boosted treble and bass. Much like a row of TVs in a store, the brightest one with the sharpness turned all the way up seems the best, a set of speakers with more bass and more treble will seem better at the moment.
However, for long term extended listening, a more smooth and natural sound will allow you to enjoy the music and not the speakers. Also, boosted bass and treble often causes proper listening fatigue where you will lose interest or get headaches after long listen sessions.
Tat said, you were not comparing apples to apples, which you pointed out. Even if you were listening to the same music, the LP will always sound different from a digital version. One of the reasons I have Supertramp's "School" as my opening track on my speaker auditioning ad test CD is because it is very complex and dense from the middle to the end and stresses any system. It also sounds very different on every system as any change to frequency response or increase/decrease in distortion will bring out different instruments. Sometimes I still believe I hear a new part I've never noticed before after decades of studying that specific song. That can be exciting when it happens, but it doesn't mean the system which brought out the new experience was better or even preferred.
What's great about this hobby is all the psychological confusion it brings out in us. We can be told a new cable will enhance the detail, and no matter how much we doubt tat statement we Will almost always experience our interpretation of those words, even when a new cable wasn't switched into the system. Our brains have terrible auditory memory and are daily fooled.
So, the question is this... when you listen to music at home do you mentally notice how it sounds, or do you deeply get into the music?
