The MC275 is a legendary tube power amplifier. An object of desire for music lovers around the world, it was designed and manufactured in 1961 by McIntosh co-founder Sidney Corderman. Combining polished stainless steel with the latest tube advances , the MC275 has entered the 21st century firmly. This tube classic gives the sound quality the highest dimension. Seven small tubes are illuminated by LEDs that indicate the functional status of the amplifiers: after power – up , they turn yellow for a few seconds and then all turn green, indicating system readiness . In the rare event that an output tube fails , the small tubes in front of it will light up red to let you know there is a problem. Power Control is used for remote lighting tubes from the McIntosh preamplifier . This tube amplifier has all the features to meet the needs of today’s music enthusiast, while retaining the features that have made the MC275 McIntosh ‘s most acclaimed tube amplifier . This sixth generation MC275 has many subtle improvements from the previous release that greatly improve it power.