1. If you don't have tubes
2. If you don't adjust VTA per each record
3. If you use original component feet
4. If you don't have at least 20 releases of Abbey Road and Dark Side Of The Moon
5. If you don't clean record before each "critial" listening
6. If you don't hear difference between wire "directions"
7. If you don't have at least 5 sets of different tubes for your equipment to "roll"
8. If you don't have Diana Krall, Cassandra Wilson, Nora Jones or Patricia Barber
9. If you don't have any of TAS, StereoFile or similar magazines on your end-table top inside the listening room.