Working perfectly with no issues to report. Made during the period of time when technics was making great amplifiers and receivers. Interface is simple and easy to use. Looks very elegant. Class A amplifiers are considered to have less noise than other types of amplification. Very affordable way to get class A amplification able to demonstrate. Can be hooked up to photograph or AM/FM tuner if you want to add components. Will happily power speakers requiring 80 continuous watts or less. Calls preferred to text or email 505 500 four six eight one