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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.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Master Collection POWERa Mono's power @ 8ω is 2.1kW against the Siegfried II's 650W, its signal-to-noise 120 dB against 110 dB, its thd 0.030% against 2.500%, and its input sensitivity 2.0V RMS against 1.5V RMS.
The MA3's power @ 8ω is 500W against the Siegfried II's 650W, its thd 0.500% against 2.500%, its input impedance 100Ω against 45Ω, and its input sensitivity 2.5V RMS against 1.5V RMS.
The Lohengrin's power @ 8ω is 400W against the Siegfried II's 650W and its weight 77 kg (170 lbs) against 90 kg (198 lbs). Both share thd (2.500%) and class (Tube).
The Relentless 800's power @ 8ω is 800W against the Siegfried II's 650W, its signal-to-noise 113 dB against 110 dB, its thd 0.100% against 2.500%, and its input sensitivity 1.0V RMS against 1.5V RMS.
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