Put the Matrix in test mode and calibrate the unit.
Page 39 in the owners manual www.flitemedia.com/downloads/matrix1000/OberheimMatrix1000.pdf
----- Original Message -----From: resistenzaaoltranzaSent: Friday, February 06, 2009 6:53 PMSubject: [oberheim] Matrix1000: fault voice?Hello, there! I am a new proud Matrix1000 owner. Testing all the
voices I felt something was wrong: pressing the same note six times, I
hear the last behaving strange, sounding less full, flat...This
happens each six notes played. Maybe one of the Cems has gone? Battery
low? Even resonance sounds too "raw" and irregular to my ears...Any
help or suggestion is highly appreciated, thanks!