Macallan7, I've been using a Peach for about three years now. I can't tell a difference by switching the Low/High-Z. Maybe my switch does not work. I found that changing tubes amkes the most impact. Telefunken sound different from Mullard and different that Amperex. Keep a pair of Bulge Boys in V1 and V2. You can rolld the main tube which has the most impact...I prefer NOS Mullards. Only until I started rolling really nice tubes did I understand the full potentil of the Peach.
