Have you done anything with AC power cables, conditioning, and segregating/isolating the digital and analog with regards to AC power ??
I do not think $1500 to $2000 for a (new) DAC is going to make that much of a difference. Probably needs to be double that to make it worth while.
I do not think $1500 to $2000 for a (new) DAC is going to make that much of a difference. Probably needs to be double that to make it worth while.