This 2A3 amplifier adopts classic Sun Audio SV-2A3 single-ended Class A vacuum tube circuit, driven by two-stage common-cathode amplification with 6SN7 tubes. It features low distortion, mellow and transparent tone and powerful driving capability.
Clear partition: Modular yellow circuit boards separate preamplifier, driver stage and power supply areas to reduce signal interference and facilitate maintenance.
Standard wiring: Signal and power lines are routed separately. Short connections and local grounding effectively cut down noise and crosstalk. Different colored cables identify signal, power and ground circuits.
Rational spacing: Reserved heat dissipation gaps avoid heat accumulation, essential for heat-generating tube amplifiers.
Capacitors: Premium electrolytic and coupling capacitors guarantee fine sound performance and stable operation.
Resistors: Audiophile-grade carbon film and metal film resistors boast higher precision and thermal stability for purer audio output.
Sockets and connectors: Silver or gold-plated tube sockets lower contact resistance and signal loss; highly reliable connectors are adopted.
Soldering: Full and evenly glossy solder joints without cold solder or excessive solder, reflecting exquisite handcraft skills.
Shielding: Shielded signal cables effectively restrain electromagnetic interference, showing high pursuit of sound details.
Chassis & Grounding: Solid grounding design shields external clutter and improves overall safety.
Solid premium audiophile-grade components
Anti-interference and heat dissipation optimized layout
Standard soldering and meticulous detail handling
