VTL ST-150
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.
Functionality 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
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Watt'n Potatoes
Not yet rated
This product doesn't have a Watt'n Potatoes score or editorial summary yet.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Reviews & Sources
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
No forum mentions found yet
Specifications
- Vacuum Tube Complement
- 8 x 6550, 2 x 12AT7, 2 x 12BH7
- Output power
- Tetrode: 120W, Triode: 60W
- 20Hz – 20kHz <3% THD
- Into 5Ω
- Input sensitivity @ 150W
- 100V = 0.880V; 120/240 = 1.0V
- input impedance
- 130KΩ
- Output Load Range
- 2Ω – 8Ω
- S/N Ratio
- -95dB, 120Hz
- Power Consumption
- Idle = 240W, Full Power = 800W
- Primary Mains Fuse Rating
- 100V = 15A Ceramic Slo Blo, 120V = 15A Ceramic Slo Blo, 220/240V = 8A Ceramic Slo Blo
- B+ Fuse Rating
- 1A fast acting ceramic 600V
- Dimensions W x D x H
- 19 x 12 x 9 inches (48 x 30 x 23 cm)
- Weight
- 85lbs (38.6Kg), 110lb (50Kg) packed
Manufacturer's Description — VTL
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.
Functionality 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
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for VTL ST-150
- Audio Alternative — online and in-store — Fort Collins, Colorado, United States (website)
- Audio Element — in-store — Pasadena, California, United States (website)
- Audio Reference — in-store — Hamburg-Nord, Hamburg, Germany (website)
- Class D Audio USA — online — United States (website)
- CommonSense Audio — United States (website)
- George Meyer AV — in-store — Los Angeles, California, United States (website)
- Innovative Audio Video — in-store — New York, New York, United States (website)
- Kronos Audio Visual — online and in-store — Staplefield, England, United Kingdom (website)
- Magic Sound — online and in-store — Italy (website)
- Media Seller — Germany (website)
and 14 more verified dealers