No. All Linear Tube Audio amps automatically bias the tubes, so no adjustments are ever necessary. Related FAQs Featured How do I troubleshoot and replace a bad tube in an LTA integrated amplifier? How do I switch between 12SN7 tubes and 6SN7 tubes in my MZ2, MZ3, or MicroZOTL Preamplifier? What kind of tubes do you use in your amps? Do I have to adjust or bias my tubes? Do LTA tube amps generate a lot of heat? Share