Power amplifiers mono — VTL Siegfried Series II Reference

Description, images, technical data and specifications

VTL Siegfried Series II Reference
Image source — © VTL

The veteran of the high-power tube amplifier market outputs up to 650 watts of power in tetrode mode, with 12 6550 type lamps used in each channel. Huge stabilized power supplies and an impressive case are responsible for the impressive weight of 90 kilograms per monoblock or 180 kg for a stereo system.

Specifications

Model name
Siegfried Series II Reference
Input sensitivity (mV)
1000 - 2000
Input impedance (balanced) (Ω)
45 000
Input impedance (single-ended) (Ω)
45 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
Tetrode: 650, Triode: 330
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
20 000
Signal to Noise Ratio (dB)
110
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
1500
Damping factor
N/A
Dimensions (mm)
292 x 610 x 610
Weight (kg)
147
Official link
https://www.vtl.com/products/power-amplifiers/monoblock-amplifiers/siegfried-series-ii-reference-monoblock/