We get asked this question all the time; I have speaker ‘xyz’, how much amplifier power do I need? This question comes down to a couple...

Distortion is arguably the most commonly compared specification between audio products. Consumers often use this as the first technical...

Input referred noise is a noise specification found on some audio equipment and preamplifiers. While it is an extremely useful...

Preamplifiers or preamps are very key pieces of equipment in any audio path. Although not always required, they play an important role...

Vacuum tube testing can be extremely important for the performance of an audio system. While vacuum tube testing is important in circuits...

Majority of tube amplifiers on the market have an output transformer. Only a very small group of OTL or Output Transformer-Less tube...

One of the most commonly misconstrued topics on audio amplifiers is output impedance and what it means for your loudspeakers. Many...

Tube rectifiers are the simplest type of vacuum tube since they are two-element devices, or diode. They provide no amplification or...