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General| Type | Tube Amplifier |
|---|---|
| Power Output | 55 Watts per channel into 8 or 4 Ohms |
| Input Impedance | 100 kOhms |
| Dimensions | 19 x 15.75 x 7.25 inches |
| Weight | 50 lbs |
| Output Impedance | 4, 8, 16 Ohms |
| Frequency Response | 20Hz - 20kHz |
| Total Harmonic Distortion | < 1% |
| Signal to Noise Ratio | 90dB |
Explains symbols used in the manual to highlight important safety and operational information.
Provides critical warnings about hazardous voltages and precautions to prevent electric shock.
Details risks associated with water exposure and the procedure if the unit gets wet.
Guides on choosing a suitable, well-ventilated location for optimal performance and safety.
Advises on when and how to seek professional service for the amplifier.
Lists essential precautions for safe and correct operation of the amplifier.
Step-by-step instructions for safely removing the amplifier from its packaging.
Identifies the power switch and LED indicator on the front of the amplifier.
Procedure to ensure amplifier tubes are properly seated before powering on.
Overview and identification of ports and controls on the rear of the amplifier.
Instructions for connecting the ST-150 to audio sources and speakers.
Guidance on verifying and setting the correct voltage for the amplifier.
Recommendations for connecting the amplifier to a suitable power source.
Detailed steps for safely turning on the amplifier and the audio system.
Advice on diagnosing and resolving ground loop hum issues.
Instructions for safely shutting down the amplifier and audio system.
Explains the function and use of the Tetrode/Triode mode switch.
Describes how to check and adjust the amplifier's bias settings for optimal performance.
Diagram showing locations for bias measurement and adjustment points.
Information on the initial period of use for optimal amplifier performance.
Recommendation on powering off the amplifier when not in use.
Details the specific vacuum tubes used in the ST-150 amplifier.
Provides information on the expected lifespan of the amplifier's tubes.
Instructions and warnings related to replacing the amplifier's vacuum tubes.
Procedure for replacing the main AC and B+ fuses.
Recommendations for cleaning and maintaining the amplifier's exterior.
Advice on how to pack and ship the amplifier safely.
Instructions for registering the product to validate the warranty.
Section for recording service dates and details related to the amplifier.
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