Used for 12 years. In front there is a button to turn on the amp. A headphone jack. 2 switchable speaker groups with two buttons labeled A and B. 2 knobs for Bass and Treble EQ. A potentiometer for the balance. A potentiometer input selector (phono, tape, MD, CD and tuner). A mute button. A loudness button. The volume knob. A large direct source button and 9 LEDs. <br>At the rear terminals for two pairs of speakers and the RCA connectors for the inputs in (phono, tape, MD, CD and tuner). <br><br>What I like is the ability to connect two pairs of speakers that have two different plays. I have plugged the Alesis Monitor One MkII, and Behringer [Monitor Speakers Series] 1C-BK. I tried this amp to see and finally I left. <br><br>The price / quality ratio is good and therefore I would do this choice.