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The quality of a tube amplifier’s OPTs is extremely important, especially so for single-ended amplifiers. Design is all important as an air gap in the transformer is needed to prevent transformer core saturation, which would cause audible distortion and other problems. Herein lies the challenge: having an air gap lowers the inductance, which compromises low-frequency response yet to increase the inductance requires adding more windings, which adversely affects the high-frequency response.
Sweden's Lundahl is a specialist designer and manufacturer of high performance transformers.
Upgraded tube set including matched Preferred Series 6L6GC power tubes, Genalex Gold Lion signal tubes, audiophile grade Mundorf EVO oil coupling capacitors
The TU-8200R features Active Automatic bias adjustment function which means changing tube types is easy; no manual biasing required. Tube rolling covers KT88, EL34, 6L6GC.
Operates in Ultra-linear, Triode or Pentode modes.
Uses low ESR cathode bypass capacitors for superior sound
Headphone terminal equipped with 3 selectable output levels
High quality 70µm thick copper PCB
Gold-plated screw terminal (banana plug usable)