Alan,
You may correct in a sense. I would not charactarize the Pass XA.5 bass as punchy or fast. Rather, it conveys a sense of weight and acoustic space, and does not draw attention to itself. It is very natural and realistic, as you say, for classical music. Whether the cello in a quartet, the left hand in a piano concerto, or the double bass section of an orchestra, everything is cohesive.
You may correct in a sense. I would not charactarize the Pass XA.5 bass as punchy or fast. Rather, it conveys a sense of weight and acoustic space, and does not draw attention to itself. It is very natural and realistic, as you say, for classical music. Whether the cello in a quartet, the left hand in a piano concerto, or the double bass section of an orchestra, everything is cohesive.