The Dynaco PAS 3 is a vacuum tube preamplifier that was first introduced in the 1960s. It is known for its lightweight design and use of a vacuum tube circuitry approach, providing a warm and rich sound character that is often appreciated by audiophiles. The unit features several inputs and outputs, accommodating various audio sources and playback devices. It is designed to work with power amplifiers, allowing users to tailor their audio setups. The PAS 3 comes equipped with tone control features, allowing adjustments to bass and treble frequencies to suit personal listening preferences. The build quality reflects the era's aesthetic with its minimalist and functional design. In terms of specifications, it typically operates on a power supply of 120V AC, the frequency response ranges from 20Hz to 20kHz, and it has a nominal input impedance of around 100k ohms. The output impedance is designed to be compatible with a wide array of amplifiers, making it versatile for different configurations. The PAS 3 also supports the use of phono inputs, making it suitable for vinyl playback, as well as other line-level sources.
