I suggest you look at an Ayre Codex. Not quite a QB 9 Twenty, but very good for the money.
If you can score a used QB 9 non DSD, you will come out ahead with the upgrade- it doesn't matter which iteration, the upgrade price of $1500 is the same.
Bob
If you can score a used QB 9 non DSD, you will come out ahead with the upgrade- it doesn't matter which iteration, the upgrade price of $1500 is the same.
Bob