As usual, some are answering questions that were not asked, and some are making assumptions. However, the question as asked may be too open ended to properly address without more detail.
It sounds like the OP is saying that the system is already of good caliber all around. In that case, a better pre or amp would really offer limited improvements, generally speaking. If one of those were long in the tooth, or lacked a feature or connection option one wanted, that might tip the scale, as it were.
It sounds like the OP is saying that the system is already of good caliber all around. In that case, a better pre or amp would really offer limited improvements, generally speaking. If one of those were long in the tooth, or lacked a feature or connection option one wanted, that might tip the scale, as it were.