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Siegfried II

Name: Vacuum Tube Logic (VTL) Siegfried II
Brand: Vacuum Tube Logic (VTL)

Vacuum Tube Logic (VTL)

Siegfried Series2003 – Present

AmplifiersTube AmplifiersPower Amplifiers

Estimated price (community-sourced)

$9,500 - $212,995

About the Siegfried II

The VTL Siegfried II Reference is a flagship monoblock tube amplifier designed for very high output power, wideband performance, and unusually flexible speaker matching. It uses a fully balanced differential circuit, zero global negative feedback, switch-selectable tetrode/triode operation, and user-adjustable damping factor settings (Low/Med/Hi/Max) to tailor output impedance and bass control to the loudspeaker load. It was introduced as the Series II update to the original Siegfried and added features such as improved autobias/fault sensing, RS-232 control, and precision-regulated supplies for greater operating stability.

Specifications

Key Specifications

Impedance: 5Ω

Power: 650W

Full structured specifications are available to members.

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