A special audio experience “The Classic McIntosh C20”

Pictured a McIntosh C20 pre-amplifier. Note the full compliment of Telefunkin tubes all NOS test! It came in with an intermittent noise in both channels. A few caps later along with some proper contact cleaning and a bit of “Tubeology” work with selection/match of the Telefunkin’s and our proprietary tube socket and pin contact enhancing process (DNA) It’s sounding  stunning! In audiophile terms, “fast, transparent, detailed, deep and layered sound-stage, engaging”front of 20c mcintosh pre-amp