From classic chairs and audio equipment, artist M11X furnishes sound sculptures and other mixed media pieces. With these latest works, an audio equipped Knolls chair and Eames lounge and ottoman, the artist invites viewers to cast off their headphones and share the music. On Saturday, a Alphabeta in Greenpoint opens a solo exhibition of M11X’s efforts to which attendees are encouraged to bring their own music players to plug into the artist’s work. “High Fidelity” opens from 7 to 9 PM and is on view through July 20th at 70 Greenpoint Avenue.