the term "musical" cannot refer to an audio component. an audio component is not an instrument. it is a reproducer, inaccurate though it may be".
Mr T - why so Black and White today when you are nornally in the middle?
For sure equipment that adds coloration can be thought of as "musical", IMHO (some euphonic designs). Stuff that just plays it "as it is" (on the recording) is usually described as "transparent" or "neutral".
Isn't a top DJ part of the musical process in a club?
How about a concert hall - these are sometimes described as "musical"...LOL ;-)