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ST-150 Stereo Amplifier

VTL ST-150 Stereo Power Amplifier
VTL ST-150 Stereo Power Amplifier
VTL ST-150 Stereo Power Amplifier

Over 150 watts per channel (300 watts of stereo power), this stereo amplifier offers superb musical clarity and plenty of power in one compact chassis. Utilizing the finest quality parts, and entirely hand built by experienced craftsmen, the ST-150 is VTL’s offering of a high value, high power stereo tube amplifier. The noted VTL quick, clean, musical sound and exceptional bass punch is delivered here by the 6550 tubes. Exceptionally well suited to triode operation, yet they are also very dynamic and fast in tetrode mode, these VTL amplifiers are well-suited to smaller electrostatic panels and dynamic speakers not requiring high current. For commanding performances on the midrange and clarity on the top, VTL wins hands down. In triode mode, the amp is best suited to speakers with an efficiency of 92dB/1W/1m or higher.

VTL ST-150 Stereo Power Amplifier
VTL Logo

ST-150 Stereo Amplifier

Over 150 watts per channel (300 watts of stereo power), this stereo amplifier offers superb musical clarity and plenty of power in one compact chassis. Utilizing the finest quality parts, and entirely hand built by experienced craftsmen, the ST-150 is VTL’s offering of a high value, high power stereo tube amplifier. The noted VTL quick, clean, musical sound and exceptional bass punch is delivered here by the 6550 tubes. Exceptionally well suited to triode operation, yet they are also very dynamic and fast in tetrode mode, these VTL amplifiers are well-suited to smaller electrostatic panels and dynamic speakers not requiring high current. For commanding performances on the midrange and clarity on the top, VTL wins hands down. In triode mode, the amp is best suited to speakers with an efficiency of 92dB/1W/1m or higher.


VTL ST-150 Stereo Power Amplifier VTL ST-150 Stereo Power Amplifier

FEATURES

  • High energy storage power supply >200 joules
  • VTL proprietary output transformer
  • Very low-noise floor with specially designed grounding scheme
  • Tetrode/Triode Switchable
  • 150 watts per channel in tetrode
  • 70 watts per channel in triode
  • 4 6550 tubes per channel with individual bias setting for each tube
  • Audiophile grade film and foil caps used in the signal path
  • Extruded aluminum front panel with luxurious, modern look — black and silver options available

SPECIFICATION

Vacuum Tube Complement8 x 6550, 2 x 12AT7, 2 x 12BH7
Output power
Tetrode: 120W, Triode: 60W
20Hz – 20kHz <3% THDInto 5Ω
Input sensitivity @ 150W100V = 0.880V; 120/240 = 1.0V
input impedance130KΩ
Output Load Range2Ω – 8Ω
S/N Ratio-95dB, 120Hz
Power ConsumptionIdle = 240W, Full Power = 800W
Primary Mains Fuse Rating100V = 15A Ceramic Slo Blo, 120V = 15A Ceramic Slo Blo, 220/240V = 8A Ceramic Slo Blo
B+ Fuse Rating1A fast acting ceramic 600V
Dimensions W x D x H19 x 12 x 9 inches (48 x 30 x 23 cm)
Weight85lbs (38.6Kg), 110lb (50Kg) packed

Downloads

ST-150 Data Sheet

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