Is Xduoo TA 26 OTL?
The TA-26 is an OTL tube amp, this means it will pair best with higher impedance dynamic headphones and easier to drive planar headphones, they are not really suited to sensitive IEM’s due to their output impedance and potential noise issues.
What is tube rolling for amps?
Tube rolling is the process of trying out a number of tubes in the same spot in an amplifier and selecting the one that sounds best to you. This can be very helpful in optimizing the tone of the amplifier. CAUTION: Tube amplifiers run on dangerous high-voltages and the tubes get very hot during operation.
What problems are associated with tube rolling?
Over-rolling can decrease the distance and strength of the ligaments between tubes, causing considerable damage to the tube sheet and tubes. Once a ligament is weakened, it will reduce the strength of those surrounding it. This overall reduction in ligament strength can cause adjacent tubes to leak.