Power amplifiers stereo — VTL S-400 Series II Reference

Description, images, technical data and specifications

VTL S-400 Series II Reference
Image source — © VTL

Tube stereo power amplifier. Reference Series. Output power: At 4 ohms Tetrode - 400 Watts, Triode - 200 watts; At 8 ohms Tetrode - 300 Watts, Triode - 150 watts. The VTL S-400 power amplifier is part of the American company's Reference series of equipment. It uses a number of technical solutions used in the top-end Siegfried monoblock power units, but it has a stereo design. With a huge power of 400 watts per channel, which is enough to play any compositions with any speaker systems, the VTL S-400 is at the same time capable of transmitting the most subtle nuances of a piece of music.

Specifications

Model name
S-400 Series II Reference
Input sensitivity (mV)
1000 - 2000
Input impedance (balanced) (Ω)
48 000
Input impedance (single-ended) (Ω)
48 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
Tetrode = 300, Triode = 150
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)
90
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
1600
Damping factor
N/A
Dimensions (mm)
290 x 610 x 610
Weight (kg)
159
Official link
https://www.vtl.com/products/power-amplifiers/stereo-amplifiers/s-400-series-ii-reference-stereo-amplifier/